java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Octopussy.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:54:46,293 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:54:46,295 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:54:46,308 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:54:46,309 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:54:46,311 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:54:46,314 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:54:46,315 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:54:46,317 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:54:46,318 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:54:46,319 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:54:46,319 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:54:46,320 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:54:46,321 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:54:46,322 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:54:46,323 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:54:46,324 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:54:46,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:54:46,331 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:54:46,333 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:54:46,337 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:54:46,338 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:54:46,343 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:54:46,343 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:54:46,344 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:54:46,347 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:54:46,348 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:54:46,351 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:54:46,352 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:54:46,353 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:54:46,353 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:54:46,354 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 13:54:46,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 13:54:46,354 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 13:54:46,358 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 13:54:46,359 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 13:54:46,359 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 13:54:46,385 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:54:46,385 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:54:46,390 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:54:46,390 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:54:46,391 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:54:46,391 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:54:46,391 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:54:46,391 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:54:46,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:54:46,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:54:46,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:54:46,490 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:54:46,490 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:54:46,491 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Octopussy.bpl [2018-07-23 13:54:46,491 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Octopussy.bpl' [2018-07-23 13:54:46,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:54:46,535 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:54:46,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:54:46,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:54:46,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:54:46,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:54:46,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:54:46,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:54:46,590 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:54:46,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/1) ... [2018-07-23 13:54:46,682 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 13:54:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 13:54:46,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 13:54:46,820 INFO L258 CfgBuilder]: Using library mode [2018-07-23 13:54:46,822 INFO L202 PluginConnector]: Adding new model Octopussy.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:54:46 BoogieIcfgContainer [2018-07-23 13:54:46,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:54:46,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:54:46,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:54:46,828 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:54:46,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:54:46" (1/2) ... [2018-07-23 13:54:46,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c7ebb2 and model type Octopussy.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:54:46, skipping insertion in model container [2018-07-23 13:54:46,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Octopussy.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:54:46" (2/2) ... [2018-07-23 13:54:46,834 INFO L112 eAbstractionObserver]: Analyzing ICFG Octopussy.bpl [2018-07-23 13:54:46,845 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:54:46,857 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:54:46,909 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:54:46,910 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:54:46,911 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:54:46,911 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:54:46,911 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:54:46,911 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:54:46,911 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:54:46,912 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:54:46,912 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:54:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:54:46,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 13:54:46,935 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:46,936 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 13:54:46,936 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:46,942 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2018-07-23 13:54:46,949 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,014 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:54:47,015 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 13:54:47,017 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,018 INFO L185 omatonBuilderFactory]: Interpolants [9#true, 10#false, 11#(<= main_x 0)] [2018-07-23 13:54:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,019 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 13:54:47,032 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 13:54:47,033 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:54:47,035 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 13:54:47,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,063 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-07-23 13:54:47,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:54:47,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-23 13:54:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,075 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:54:47,076 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 13:54:47,079 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:54:47,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 13:54:47,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 13:54:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 13:54:47,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 13:54:47,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 13:54:47,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,118 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 13:54:47,118 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 13:54:47,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 13:54:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:54:47,119 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,119 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:54:47,119 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,120 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2018-07-23 13:54:47,120 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,140 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,140 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:54:47,141 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,141 INFO L185 omatonBuilderFactory]: Interpolants [48#true, 49#false, 50#(<= main_x 0), 51#(<= main_x 1)] [2018-07-23 13:54:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,144 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:54:47,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:54:47,145 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:54:47,145 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-07-23 13:54:47,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,159 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:54:47,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:54:47,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:54:47,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,160 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:54:47,160 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 13:54:47,162 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:54:47,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 13:54:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 13:54:47,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 13:54:47,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 13:54:47,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-23 13:54:47,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,165 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 13:54:47,165 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:54:47,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 13:54:47,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:54:47,166 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,166 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-23 13:54:47,167 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,167 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2018-07-23 13:54:47,167 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,193 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,193 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 13:54:47,193 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,194 INFO L185 omatonBuilderFactory]: Interpolants [80#true, 81#false, 82#(<= main_x 0), 83#(<= main_x 1), 84#(<= main_x 2)] [2018-07-23 13:54:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,195 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:54:47,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:54:47,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:54:47,196 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2018-07-23 13:54:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,210 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 13:54:47,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 13:54:47,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2018-07-23 13:54:47,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,211 INFO L225 Difference]: With dead ends: 9 [2018-07-23 13:54:47,212 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 13:54:47,212 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:54:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 13:54:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 13:54:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:54:47,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:54:47,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-07-23 13:54:47,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,215 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:54:47,216 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:54:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:54:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:54:47,216 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,216 INFO L357 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2018-07-23 13:54:47,217 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,217 INFO L82 PathProgramCache]: Analyzing trace with hash 891321030, now seen corresponding path program 3 times [2018-07-23 13:54:47,217 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,249 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,250 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:54:47,250 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,250 INFO L185 omatonBuilderFactory]: Interpolants [117#true, 118#false, 119#(<= main_x 0), 120#(<= main_x 1), 121#(<= main_x 2), 122#(<= main_x 3)] [2018-07-23 13:54:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,251 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:54:47,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:54:47,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:54:47,252 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-07-23 13:54:47,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,265 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-07-23 13:54:47,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:54:47,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-07-23 13:54:47,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,267 INFO L225 Difference]: With dead ends: 10 [2018-07-23 13:54:47,267 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:54:47,268 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:54:47,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:54:47,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 13:54:47,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 13:54:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 13:54:47,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 13:54:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,271 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 13:54:47,271 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:54:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 13:54:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 13:54:47,272 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,272 INFO L357 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-07-23 13:54:47,273 INFO L414 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 4 times [2018-07-23 13:54:47,273 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,310 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,310 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 13:54:47,310 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,311 INFO L185 omatonBuilderFactory]: Interpolants [160#false, 161#(<= main_x 0), 162#(<= main_x 1), 163#(<= main_x 2), 164#(<= main_x 3), 165#(<= main_x 4), 159#true] [2018-07-23 13:54:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,311 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 13:54:47,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 13:54:47,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:54:47,312 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2018-07-23 13:54:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,327 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 13:54:47,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 13:54:47,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-23 13:54:47,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,332 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:54:47,332 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 13:54:47,333 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:54:47,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 13:54:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 13:54:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 13:54:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 13:54:47,336 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-07-23 13:54:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,336 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 13:54:47,337 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 13:54:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 13:54:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 13:54:47,337 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,338 INFO L357 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2018-07-23 13:54:47,338 INFO L414 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1860894214, now seen corresponding path program 5 times [2018-07-23 13:54:47,338 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,389 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,390 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,390 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:54:47,390 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,391 INFO L185 omatonBuilderFactory]: Interpolants [208#(<= main_x 0), 209#(<= main_x 1), 210#(<= main_x 2), 211#(<= main_x 3), 212#(<= main_x 4), 213#(<= main_x 5), 206#true, 207#false] [2018-07-23 13:54:47,391 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,391 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:54:47,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:54:47,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:54:47,392 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-07-23 13:54:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,423 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 13:54:47,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:54:47,424 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-23 13:54:47,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,425 INFO L225 Difference]: With dead ends: 12 [2018-07-23 13:54:47,425 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 13:54:47,426 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:54:47,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 13:54:47,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 13:54:47,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 13:54:47,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 13:54:47,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-07-23 13:54:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,434 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 13:54:47,434 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:54:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 13:54:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 13:54:47,435 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,435 INFO L357 BasicCegarLoop]: trace histogram [6, 1, 1, 1] [2018-07-23 13:54:47,436 INFO L414 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1853141920, now seen corresponding path program 6 times [2018-07-23 13:54:47,437 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,533 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,534 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,534 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 13:54:47,534 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,535 INFO L185 omatonBuilderFactory]: Interpolants [258#true, 259#false, 260#(<= main_x 0), 261#(<= main_x 1), 262#(<= main_x 2), 263#(<= main_x 3), 264#(<= main_x 4), 265#(<= main_x 5), 266#(<= main_x 6)] [2018-07-23 13:54:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,535 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 13:54:47,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 13:54:47,536 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:54:47,539 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2018-07-23 13:54:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,558 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 13:54:47,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 13:54:47,559 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2018-07-23 13:54:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,560 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:54:47,560 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 13:54:47,561 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:54:47,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 13:54:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 13:54:47,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 13:54:47,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 13:54:47,564 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-07-23 13:54:47,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,565 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 13:54:47,565 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 13:54:47,565 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 13:54:47,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 13:54:47,566 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,566 INFO L357 BasicCegarLoop]: trace histogram [7, 1, 1, 1] [2018-07-23 13:54:47,566 INFO L414 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1612820806, now seen corresponding path program 7 times [2018-07-23 13:54:47,567 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,615 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,616 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:54:47,616 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,617 INFO L185 omatonBuilderFactory]: Interpolants [320#(<= main_x 3), 321#(<= main_x 4), 322#(<= main_x 5), 323#(<= main_x 6), 324#(<= main_x 7), 315#true, 316#false, 317#(<= main_x 0), 318#(<= main_x 1), 319#(<= main_x 2)] [2018-07-23 13:54:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,617 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:54:47,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:54:47,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:54:47,618 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-07-23 13:54:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,632 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 13:54:47,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:54:47,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-07-23 13:54:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,633 INFO L225 Difference]: With dead ends: 14 [2018-07-23 13:54:47,634 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 13:54:47,638 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:54:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 13:54:47,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 13:54:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 13:54:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 13:54:47,644 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-07-23 13:54:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,647 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 13:54:47,647 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:54:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 13:54:47,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 13:54:47,649 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,649 INFO L357 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2018-07-23 13:54:47,650 INFO L414 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 8 times [2018-07-23 13:54:47,650 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,721 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,721 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-23 13:54:47,721 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,722 INFO L185 omatonBuilderFactory]: Interpolants [384#(<= main_x 5), 385#(<= main_x 6), 386#(<= main_x 7), 387#(<= main_x 8), 377#true, 378#false, 379#(<= main_x 0), 380#(<= main_x 1), 381#(<= main_x 2), 382#(<= main_x 3), 383#(<= main_x 4)] [2018-07-23 13:54:47,722 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,723 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 13:54:47,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 13:54:47,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:54:47,724 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2018-07-23 13:54:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,738 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-23 13:54:47,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 13:54:47,738 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2018-07-23 13:54:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,739 INFO L225 Difference]: With dead ends: 15 [2018-07-23 13:54:47,739 INFO L226 Difference]: Without dead ends: 13 [2018-07-23 13:54:47,740 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:54:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-23 13:54:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-23 13:54:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 13:54:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-23 13:54:47,744 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-07-23 13:54:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,744 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-23 13:54:47,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 13:54:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-23 13:54:47,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 13:54:47,745 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,745 INFO L357 BasicCegarLoop]: trace histogram [9, 1, 1, 1] [2018-07-23 13:54:47,746 INFO L414 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,746 INFO L82 PathProgramCache]: Analyzing trace with hash -562523002, now seen corresponding path program 9 times [2018-07-23 13:54:47,746 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,796 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,796 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:54:47,796 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,797 INFO L185 omatonBuilderFactory]: Interpolants [448#(<= main_x 2), 449#(<= main_x 3), 450#(<= main_x 4), 451#(<= main_x 5), 452#(<= main_x 6), 453#(<= main_x 7), 454#(<= main_x 8), 455#(<= main_x 9), 444#true, 445#false, 446#(<= main_x 0), 447#(<= main_x 1)] [2018-07-23 13:54:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,798 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:54:47,798 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:54:47,798 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:54:47,799 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 12 states. [2018-07-23 13:54:47,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,817 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-23 13:54:47,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:54:47,818 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2018-07-23 13:54:47,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,819 INFO L225 Difference]: With dead ends: 16 [2018-07-23 13:54:47,819 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 13:54:47,819 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:54:47,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 13:54:47,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 13:54:47,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 13:54:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-23 13:54:47,824 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-07-23 13:54:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,824 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-23 13:54:47,824 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:54:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-23 13:54:47,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 13:54:47,825 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,825 INFO L357 BasicCegarLoop]: trace histogram [10, 1, 1, 1] [2018-07-23 13:54:47,826 INFO L414 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,826 INFO L82 PathProgramCache]: Analyzing trace with hash -258347744, now seen corresponding path program 10 times [2018-07-23 13:54:47,826 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,877 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,878 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-07-23 13:54:47,878 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,879 INFO L185 omatonBuilderFactory]: Interpolants [516#true, 517#false, 518#(<= main_x 0), 519#(<= main_x 1), 520#(<= main_x 2), 521#(<= main_x 3), 522#(<= main_x 4), 523#(<= main_x 5), 524#(<= main_x 6), 525#(<= main_x 7), 526#(<= main_x 8), 527#(<= main_x 9), 528#(<= main_x 10)] [2018-07-23 13:54:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,881 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 13:54:47,882 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 13:54:47,882 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:54:47,883 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-07-23 13:54:47,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,914 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-23 13:54:47,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 13:54:47,915 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-07-23 13:54:47,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,916 INFO L225 Difference]: With dead ends: 17 [2018-07-23 13:54:47,916 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 13:54:47,920 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:54:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 13:54:47,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-23 13:54:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 13:54:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-23 13:54:47,927 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-07-23 13:54:47,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,928 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-23 13:54:47,928 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 13:54:47,928 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-23 13:54:47,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 13:54:47,931 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,931 INFO L357 BasicCegarLoop]: trace histogram [11, 1, 1, 1] [2018-07-23 13:54:47,932 INFO L414 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,932 INFO L82 PathProgramCache]: Analyzing trace with hash 581150662, now seen corresponding path program 11 times [2018-07-23 13:54:47,932 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,018 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,019 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:54:48,019 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,020 INFO L185 omatonBuilderFactory]: Interpolants [593#true, 594#false, 595#(<= main_x 0), 596#(<= main_x 1), 597#(<= main_x 2), 598#(<= main_x 3), 599#(<= main_x 4), 600#(<= main_x 5), 601#(<= main_x 6), 602#(<= main_x 7), 603#(<= main_x 8), 604#(<= main_x 9), 605#(<= main_x 10), 606#(<= main_x 11)] [2018-07-23 13:54:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,020 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:54:48,021 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:54:48,021 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:54:48,022 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2018-07-23 13:54:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,036 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-23 13:54:48,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:54:48,037 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2018-07-23 13:54:48,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,037 INFO L225 Difference]: With dead ends: 18 [2018-07-23 13:54:48,038 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:54:48,038 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:54:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:54:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-23 13:54:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-23 13:54:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-23 13:54:48,042 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-07-23 13:54:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,043 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-23 13:54:48,043 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:54:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-23 13:54:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 13:54:48,044 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,044 INFO L357 BasicCegarLoop]: trace histogram [12, 1, 1, 1] [2018-07-23 13:54:48,045 INFO L414 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,045 INFO L82 PathProgramCache]: Analyzing trace with hash 835797472, now seen corresponding path program 12 times [2018-07-23 13:54:48,045 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,097 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,098 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,098 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-23 13:54:48,098 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,099 INFO L185 omatonBuilderFactory]: Interpolants [675#true, 676#false, 677#(<= main_x 0), 678#(<= main_x 1), 679#(<= main_x 2), 680#(<= main_x 3), 681#(<= main_x 4), 682#(<= main_x 5), 683#(<= main_x 6), 684#(<= main_x 7), 685#(<= main_x 8), 686#(<= main_x 9), 687#(<= main_x 10), 688#(<= main_x 11), 689#(<= main_x 12)] [2018-07-23 13:54:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,100 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 13:54:48,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 13:54:48,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:54:48,101 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 15 states. [2018-07-23 13:54:48,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,124 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-23 13:54:48,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 13:54:48,124 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2018-07-23 13:54:48,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,125 INFO L225 Difference]: With dead ends: 19 [2018-07-23 13:54:48,125 INFO L226 Difference]: Without dead ends: 17 [2018-07-23 13:54:48,126 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:54:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-23 13:54:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-07-23 13:54:48,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-07-23 13:54:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-07-23 13:54:48,134 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2018-07-23 13:54:48,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,135 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-07-23 13:54:48,135 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 13:54:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-07-23 13:54:48,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-23 13:54:48,137 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,137 INFO L357 BasicCegarLoop]: trace histogram [13, 1, 1, 1] [2018-07-23 13:54:48,137 INFO L414 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,138 INFO L82 PathProgramCache]: Analyzing trace with hash 139913990, now seen corresponding path program 13 times [2018-07-23 13:54:48,138 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,235 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,236 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,236 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:54:48,236 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,237 INFO L185 omatonBuilderFactory]: Interpolants [768#(<= main_x 4), 769#(<= main_x 5), 770#(<= main_x 6), 771#(<= main_x 7), 772#(<= main_x 8), 773#(<= main_x 9), 774#(<= main_x 10), 775#(<= main_x 11), 776#(<= main_x 12), 777#(<= main_x 13), 762#true, 763#false, 764#(<= main_x 0), 765#(<= main_x 1), 766#(<= main_x 2), 767#(<= main_x 3)] [2018-07-23 13:54:48,237 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,238 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:54:48,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:54:48,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:54:48,239 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 16 states. [2018-07-23 13:54:48,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,266 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-07-23 13:54:48,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:54:48,267 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2018-07-23 13:54:48,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,268 INFO L225 Difference]: With dead ends: 20 [2018-07-23 13:54:48,268 INFO L226 Difference]: Without dead ends: 18 [2018-07-23 13:54:48,269 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:54:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-23 13:54:48,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-23 13:54:48,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-23 13:54:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-23 13:54:48,275 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-07-23 13:54:48,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,276 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-23 13:54:48,276 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:54:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-23 13:54:48,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 13:54:48,277 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,277 INFO L357 BasicCegarLoop]: trace histogram [14, 1, 1, 1] [2018-07-23 13:54:48,281 INFO L414 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,282 INFO L82 PathProgramCache]: Analyzing trace with hash 42362528, now seen corresponding path program 14 times [2018-07-23 13:54:48,282 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,350 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,351 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,351 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-23 13:54:48,351 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,353 INFO L185 omatonBuilderFactory]: Interpolants [864#(<= main_x 8), 865#(<= main_x 9), 866#(<= main_x 10), 867#(<= main_x 11), 868#(<= main_x 12), 869#(<= main_x 13), 870#(<= main_x 14), 854#true, 855#false, 856#(<= main_x 0), 857#(<= main_x 1), 858#(<= main_x 2), 859#(<= main_x 3), 860#(<= main_x 4), 861#(<= main_x 5), 862#(<= main_x 6), 863#(<= main_x 7)] [2018-07-23 13:54:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,354 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 13:54:48,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 13:54:48,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:54:48,355 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 17 states. [2018-07-23 13:54:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,374 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-07-23 13:54:48,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 13:54:48,376 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-07-23 13:54:48,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,377 INFO L225 Difference]: With dead ends: 21 [2018-07-23 13:54:48,377 INFO L226 Difference]: Without dead ends: 19 [2018-07-23 13:54:48,383 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:54:48,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-23 13:54:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-07-23 13:54:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-23 13:54:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-07-23 13:54:48,391 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-07-23 13:54:48,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,391 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-07-23 13:54:48,391 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 13:54:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-07-23 13:54:48,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 13:54:48,392 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,392 INFO L357 BasicCegarLoop]: trace histogram [15, 1, 1, 1] [2018-07-23 13:54:48,393 INFO L414 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1313234502, now seen corresponding path program 15 times [2018-07-23 13:54:48,393 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,456 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,457 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,457 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:54:48,460 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,461 INFO L185 omatonBuilderFactory]: Interpolants [960#(<= main_x 7), 961#(<= main_x 8), 962#(<= main_x 9), 963#(<= main_x 10), 964#(<= main_x 11), 965#(<= main_x 12), 966#(<= main_x 13), 967#(<= main_x 14), 968#(<= main_x 15), 951#true, 952#false, 953#(<= main_x 0), 954#(<= main_x 1), 955#(<= main_x 2), 956#(<= main_x 3), 957#(<= main_x 4), 958#(<= main_x 5), 959#(<= main_x 6)] [2018-07-23 13:54:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,462 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:54:48,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:54:48,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:54:48,463 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 18 states. [2018-07-23 13:54:48,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,482 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-23 13:54:48,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:54:48,482 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2018-07-23 13:54:48,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,483 INFO L225 Difference]: With dead ends: 22 [2018-07-23 13:54:48,483 INFO L226 Difference]: Without dead ends: 20 [2018-07-23 13:54:48,489 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:54:48,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-23 13:54:48,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-23 13:54:48,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-23 13:54:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-23 13:54:48,496 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2018-07-23 13:54:48,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,496 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-23 13:54:48,496 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:54:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-23 13:54:48,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 13:54:48,497 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,497 INFO L357 BasicCegarLoop]: trace histogram [16, 1, 1, 1] [2018-07-23 13:54:48,498 INFO L414 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,498 INFO L82 PathProgramCache]: Analyzing trace with hash 2055560032, now seen corresponding path program 16 times [2018-07-23 13:54:48,498 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,552 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,552 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-07-23 13:54:48,552 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,553 INFO L185 omatonBuilderFactory]: Interpolants [1056#(<= main_x 1), 1057#(<= main_x 2), 1058#(<= main_x 3), 1059#(<= main_x 4), 1060#(<= main_x 5), 1061#(<= main_x 6), 1062#(<= main_x 7), 1063#(<= main_x 8), 1064#(<= main_x 9), 1065#(<= main_x 10), 1066#(<= main_x 11), 1067#(<= main_x 12), 1068#(<= main_x 13), 1069#(<= main_x 14), 1070#(<= main_x 15), 1071#(<= main_x 16), 1053#true, 1054#false, 1055#(<= main_x 0)] [2018-07-23 13:54:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,554 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 13:54:48,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 13:54:48,554 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:54:48,555 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 19 states. [2018-07-23 13:54:48,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,568 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-07-23 13:54:48,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 13:54:48,568 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2018-07-23 13:54:48,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,569 INFO L225 Difference]: With dead ends: 23 [2018-07-23 13:54:48,569 INFO L226 Difference]: Without dead ends: 21 [2018-07-23 13:54:48,570 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:54:48,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-07-23 13:54:48,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-07-23 13:54:48,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-07-23 13:54:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-07-23 13:54:48,574 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2018-07-23 13:54:48,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,574 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-07-23 13:54:48,574 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 13:54:48,574 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-07-23 13:54:48,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 13:54:48,575 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,575 INFO L357 BasicCegarLoop]: trace histogram [17, 1, 1, 1] [2018-07-23 13:54:48,576 INFO L414 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,576 INFO L82 PathProgramCache]: Analyzing trace with hash -702152314, now seen corresponding path program 17 times [2018-07-23 13:54:48,576 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,635 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,635 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:54:48,635 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,636 INFO L185 omatonBuilderFactory]: Interpolants [1160#true, 1161#false, 1162#(<= main_x 0), 1163#(<= main_x 1), 1164#(<= main_x 2), 1165#(<= main_x 3), 1166#(<= main_x 4), 1167#(<= main_x 5), 1168#(<= main_x 6), 1169#(<= main_x 7), 1170#(<= main_x 8), 1171#(<= main_x 9), 1172#(<= main_x 10), 1173#(<= main_x 11), 1174#(<= main_x 12), 1175#(<= main_x 13), 1176#(<= main_x 14), 1177#(<= main_x 15), 1178#(<= main_x 16), 1179#(<= main_x 17)] [2018-07-23 13:54:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,637 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:54:48,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:54:48,637 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:54:48,638 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 20 states. [2018-07-23 13:54:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,653 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-07-23 13:54:48,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:54:48,653 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2018-07-23 13:54:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,656 INFO L225 Difference]: With dead ends: 24 [2018-07-23 13:54:48,656 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:54:48,657 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:54:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:54:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-23 13:54:48,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-23 13:54:48,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-23 13:54:48,666 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2018-07-23 13:54:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,666 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-23 13:54:48,666 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:54:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-23 13:54:48,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 13:54:48,667 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,670 INFO L357 BasicCegarLoop]: trace histogram [18, 1, 1, 1] [2018-07-23 13:54:48,670 INFO L414 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash -291889120, now seen corresponding path program 18 times [2018-07-23 13:54:48,671 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,752 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,752 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-07-23 13:54:48,753 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,754 INFO L185 omatonBuilderFactory]: Interpolants [1280#(<= main_x 6), 1281#(<= main_x 7), 1282#(<= main_x 8), 1283#(<= main_x 9), 1284#(<= main_x 10), 1285#(<= main_x 11), 1286#(<= main_x 12), 1287#(<= main_x 13), 1288#(<= main_x 14), 1289#(<= main_x 15), 1290#(<= main_x 16), 1291#(<= main_x 17), 1292#(<= main_x 18), 1272#true, 1273#false, 1274#(<= main_x 0), 1275#(<= main_x 1), 1276#(<= main_x 2), 1277#(<= main_x 3), 1278#(<= main_x 4), 1279#(<= main_x 5)] [2018-07-23 13:54:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,755 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 13:54:48,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 13:54:48,756 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:54:48,756 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 21 states. [2018-07-23 13:54:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,771 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-07-23 13:54:48,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 13:54:48,772 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2018-07-23 13:54:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,776 INFO L225 Difference]: With dead ends: 25 [2018-07-23 13:54:48,776 INFO L226 Difference]: Without dead ends: 23 [2018-07-23 13:54:48,777 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:54:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-23 13:54:48,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-07-23 13:54:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-23 13:54:48,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-07-23 13:54:48,787 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2018-07-23 13:54:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,787 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-07-23 13:54:48,787 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 13:54:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-07-23 13:54:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-23 13:54:48,788 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,788 INFO L357 BasicCegarLoop]: trace histogram [19, 1, 1, 1] [2018-07-23 13:54:48,788 INFO L414 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,789 INFO L82 PathProgramCache]: Analyzing trace with hash -458631994, now seen corresponding path program 19 times [2018-07-23 13:54:48,789 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,871 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,871 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:54:48,872 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,872 INFO L185 omatonBuilderFactory]: Interpolants [1408#(<= main_x 17), 1409#(<= main_x 18), 1410#(<= main_x 19), 1389#true, 1390#false, 1391#(<= main_x 0), 1392#(<= main_x 1), 1393#(<= main_x 2), 1394#(<= main_x 3), 1395#(<= main_x 4), 1396#(<= main_x 5), 1397#(<= main_x 6), 1398#(<= main_x 7), 1399#(<= main_x 8), 1400#(<= main_x 9), 1401#(<= main_x 10), 1402#(<= main_x 11), 1403#(<= main_x 12), 1404#(<= main_x 13), 1405#(<= main_x 14), 1406#(<= main_x 15), 1407#(<= main_x 16)] [2018-07-23 13:54:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,873 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:54:48,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:54:48,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:54:48,883 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 22 states. [2018-07-23 13:54:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:48,902 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-07-23 13:54:48,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:54:48,902 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2018-07-23 13:54:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:48,903 INFO L225 Difference]: With dead ends: 26 [2018-07-23 13:54:48,903 INFO L226 Difference]: Without dead ends: 24 [2018-07-23 13:54:48,905 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:54:48,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-07-23 13:54:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-07-23 13:54:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 13:54:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-07-23 13:54:48,910 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-07-23 13:54:48,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:48,910 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-07-23 13:54:48,910 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:54:48,911 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-07-23 13:54:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-23 13:54:48,911 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:48,911 INFO L357 BasicCegarLoop]: trace histogram [20, 1, 1, 1] [2018-07-23 13:54:48,912 INFO L414 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:48,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1332693792, now seen corresponding path program 20 times [2018-07-23 13:54:48,912 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,993 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,993 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-07-23 13:54:48,993 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,994 INFO L185 omatonBuilderFactory]: Interpolants [1511#true, 1512#false, 1513#(<= main_x 0), 1514#(<= main_x 1), 1515#(<= main_x 2), 1516#(<= main_x 3), 1517#(<= main_x 4), 1518#(<= main_x 5), 1519#(<= main_x 6), 1520#(<= main_x 7), 1521#(<= main_x 8), 1522#(<= main_x 9), 1523#(<= main_x 10), 1524#(<= main_x 11), 1525#(<= main_x 12), 1526#(<= main_x 13), 1527#(<= main_x 14), 1528#(<= main_x 15), 1529#(<= main_x 16), 1530#(<= main_x 17), 1531#(<= main_x 18), 1532#(<= main_x 19), 1533#(<= main_x 20)] [2018-07-23 13:54:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,996 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-23 13:54:48,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-23 13:54:48,998 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:54:48,998 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 23 states. [2018-07-23 13:54:49,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,015 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-07-23 13:54:49,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 13:54:49,016 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 23 [2018-07-23 13:54:49,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,017 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:54:49,017 INFO L226 Difference]: Without dead ends: 25 [2018-07-23 13:54:49,020 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:54:49,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-23 13:54:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-07-23 13:54:49,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-07-23 13:54:49,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-07-23 13:54:49,025 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-07-23 13:54:49,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,025 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-07-23 13:54:49,025 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-23 13:54:49,025 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-07-23 13:54:49,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-23 13:54:49,026 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,026 INFO L357 BasicCegarLoop]: trace histogram [21, 1, 1, 1] [2018-07-23 13:54:49,027 INFO L414 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1636161542, now seen corresponding path program 21 times [2018-07-23 13:54:49,027 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,132 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:54:49,132 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,133 INFO L185 omatonBuilderFactory]: Interpolants [1638#true, 1639#false, 1640#(<= main_x 0), 1641#(<= main_x 1), 1642#(<= main_x 2), 1643#(<= main_x 3), 1644#(<= main_x 4), 1645#(<= main_x 5), 1646#(<= main_x 6), 1647#(<= main_x 7), 1648#(<= main_x 8), 1649#(<= main_x 9), 1650#(<= main_x 10), 1651#(<= main_x 11), 1652#(<= main_x 12), 1653#(<= main_x 13), 1654#(<= main_x 14), 1655#(<= main_x 15), 1656#(<= main_x 16), 1657#(<= main_x 17), 1658#(<= main_x 18), 1659#(<= main_x 19), 1660#(<= main_x 20), 1661#(<= main_x 21)] [2018-07-23 13:54:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:54:49,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:54:49,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:54:49,135 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 24 states. [2018-07-23 13:54:49,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,161 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-07-23 13:54:49,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:54:49,161 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2018-07-23 13:54:49,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,162 INFO L225 Difference]: With dead ends: 28 [2018-07-23 13:54:49,162 INFO L226 Difference]: Without dead ends: 26 [2018-07-23 13:54:49,167 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:54:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-23 13:54:49,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-07-23 13:54:49,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-07-23 13:54:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-07-23 13:54:49,173 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2018-07-23 13:54:49,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,173 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-07-23 13:54:49,173 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:54:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-07-23 13:54:49,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-23 13:54:49,174 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,174 INFO L357 BasicCegarLoop]: trace histogram [22, 1, 1, 1] [2018-07-23 13:54:49,174 INFO L414 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,175 INFO L82 PathProgramCache]: Analyzing trace with hash -818603616, now seen corresponding path program 22 times [2018-07-23 13:54:49,175 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,286 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,287 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-07-23 13:54:49,287 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,288 INFO L185 omatonBuilderFactory]: Interpolants [1792#(<= main_x 20), 1793#(<= main_x 21), 1794#(<= main_x 22), 1770#true, 1771#false, 1772#(<= main_x 0), 1773#(<= main_x 1), 1774#(<= main_x 2), 1775#(<= main_x 3), 1776#(<= main_x 4), 1777#(<= main_x 5), 1778#(<= main_x 6), 1779#(<= main_x 7), 1780#(<= main_x 8), 1781#(<= main_x 9), 1782#(<= main_x 10), 1783#(<= main_x 11), 1784#(<= main_x 12), 1785#(<= main_x 13), 1786#(<= main_x 14), 1787#(<= main_x 15), 1788#(<= main_x 16), 1789#(<= main_x 17), 1790#(<= main_x 18), 1791#(<= main_x 19)] [2018-07-23 13:54:49,290 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,290 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 13:54:49,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 13:54:49,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:54:49,292 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 25 states. [2018-07-23 13:54:49,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,314 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-07-23 13:54:49,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-07-23 13:54:49,314 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2018-07-23 13:54:49,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,315 INFO L225 Difference]: With dead ends: 29 [2018-07-23 13:54:49,315 INFO L226 Difference]: Without dead ends: 27 [2018-07-23 13:54:49,316 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:54:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-07-23 13:54:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-07-23 13:54:49,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 13:54:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-07-23 13:54:49,321 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2018-07-23 13:54:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,321 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-07-23 13:54:49,321 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 13:54:49,321 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-07-23 13:54:49,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 13:54:49,322 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,322 INFO L357 BasicCegarLoop]: trace histogram [23, 1, 1, 1] [2018-07-23 13:54:49,323 INFO L414 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,323 INFO L82 PathProgramCache]: Analyzing trace with hash 393087814, now seen corresponding path program 23 times [2018-07-23 13:54:49,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,427 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,427 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,427 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:54:49,428 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,429 INFO L185 omatonBuilderFactory]: Interpolants [1920#(<= main_x 11), 1921#(<= main_x 12), 1922#(<= main_x 13), 1923#(<= main_x 14), 1924#(<= main_x 15), 1925#(<= main_x 16), 1926#(<= main_x 17), 1927#(<= main_x 18), 1928#(<= main_x 19), 1929#(<= main_x 20), 1930#(<= main_x 21), 1931#(<= main_x 22), 1932#(<= main_x 23), 1907#true, 1908#false, 1909#(<= main_x 0), 1910#(<= main_x 1), 1911#(<= main_x 2), 1912#(<= main_x 3), 1913#(<= main_x 4), 1914#(<= main_x 5), 1915#(<= main_x 6), 1916#(<= main_x 7), 1917#(<= main_x 8), 1918#(<= main_x 9), 1919#(<= main_x 10)] [2018-07-23 13:54:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,430 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:54:49,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:54:49,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:54:49,431 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 26 states. [2018-07-23 13:54:49,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,445 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-07-23 13:54:49,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:54:49,446 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 26 [2018-07-23 13:54:49,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,446 INFO L225 Difference]: With dead ends: 30 [2018-07-23 13:54:49,447 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:54:49,447 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:54:49,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:54:49,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 13:54:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 13:54:49,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-07-23 13:54:49,451 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2018-07-23 13:54:49,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,452 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-07-23 13:54:49,452 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:54:49,452 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-07-23 13:54:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 13:54:49,452 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,453 INFO L357 BasicCegarLoop]: trace histogram [24, 1, 1, 1] [2018-07-23 13:54:49,453 INFO L414 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,453 INFO L82 PathProgramCache]: Analyzing trace with hash -699183520, now seen corresponding path program 24 times [2018-07-23 13:54:49,453 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,550 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,550 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-07-23 13:54:49,550 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,551 INFO L185 omatonBuilderFactory]: Interpolants [2049#true, 2050#false, 2051#(<= main_x 0), 2052#(<= main_x 1), 2053#(<= main_x 2), 2054#(<= main_x 3), 2055#(<= main_x 4), 2056#(<= main_x 5), 2057#(<= main_x 6), 2058#(<= main_x 7), 2059#(<= main_x 8), 2060#(<= main_x 9), 2061#(<= main_x 10), 2062#(<= main_x 11), 2063#(<= main_x 12), 2064#(<= main_x 13), 2065#(<= main_x 14), 2066#(<= main_x 15), 2067#(<= main_x 16), 2068#(<= main_x 17), 2069#(<= main_x 18), 2070#(<= main_x 19), 2071#(<= main_x 20), 2072#(<= main_x 21), 2073#(<= main_x 22), 2074#(<= main_x 23), 2075#(<= main_x 24)] [2018-07-23 13:54:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,552 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-23 13:54:49,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-23 13:54:49,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:54:49,553 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 27 states. [2018-07-23 13:54:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,574 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-07-23 13:54:49,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-23 13:54:49,575 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 27 [2018-07-23 13:54:49,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,575 INFO L225 Difference]: With dead ends: 31 [2018-07-23 13:54:49,575 INFO L226 Difference]: Without dead ends: 29 [2018-07-23 13:54:49,576 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:54:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-23 13:54:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-23 13:54:49,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-23 13:54:49,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-07-23 13:54:49,584 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2018-07-23 13:54:49,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,584 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-07-23 13:54:49,584 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-23 13:54:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-07-23 13:54:49,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 13:54:49,585 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,585 INFO L357 BasicCegarLoop]: trace histogram [25, 1, 1, 1] [2018-07-23 13:54:49,586 INFO L414 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,586 INFO L82 PathProgramCache]: Analyzing trace with hash -199856506, now seen corresponding path program 25 times [2018-07-23 13:54:49,586 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,687 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,687 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:54:49,687 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,688 INFO L185 omatonBuilderFactory]: Interpolants [2196#true, 2197#false, 2198#(<= main_x 0), 2199#(<= main_x 1), 2200#(<= main_x 2), 2201#(<= main_x 3), 2202#(<= main_x 4), 2203#(<= main_x 5), 2204#(<= main_x 6), 2205#(<= main_x 7), 2206#(<= main_x 8), 2207#(<= main_x 9), 2208#(<= main_x 10), 2209#(<= main_x 11), 2210#(<= main_x 12), 2211#(<= main_x 13), 2212#(<= main_x 14), 2213#(<= main_x 15), 2214#(<= main_x 16), 2215#(<= main_x 17), 2216#(<= main_x 18), 2217#(<= main_x 19), 2218#(<= main_x 20), 2219#(<= main_x 21), 2220#(<= main_x 22), 2221#(<= main_x 23), 2222#(<= main_x 24), 2223#(<= main_x 25)] [2018-07-23 13:54:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,689 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:54:49,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:54:49,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:54:49,690 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 28 states. [2018-07-23 13:54:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,708 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-07-23 13:54:49,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:54:49,708 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 28 [2018-07-23 13:54:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,709 INFO L225 Difference]: With dead ends: 32 [2018-07-23 13:54:49,709 INFO L226 Difference]: Without dead ends: 30 [2018-07-23 13:54:49,710 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:54:49,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-07-23 13:54:49,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-07-23 13:54:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 13:54:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-07-23 13:54:49,713 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2018-07-23 13:54:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,714 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-07-23 13:54:49,714 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:54:49,714 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-07-23 13:54:49,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 13:54:49,715 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,716 INFO L357 BasicCegarLoop]: trace histogram [26, 1, 1, 1] [2018-07-23 13:54:49,716 INFO L414 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1900588256, now seen corresponding path program 26 times [2018-07-23 13:54:49,716 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,826 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,826 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-07-23 13:54:49,826 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,827 INFO L185 omatonBuilderFactory]: Interpolants [2368#(<= main_x 18), 2369#(<= main_x 19), 2370#(<= main_x 20), 2371#(<= main_x 21), 2372#(<= main_x 22), 2373#(<= main_x 23), 2374#(<= main_x 24), 2375#(<= main_x 25), 2376#(<= main_x 26), 2348#true, 2349#false, 2350#(<= main_x 0), 2351#(<= main_x 1), 2352#(<= main_x 2), 2353#(<= main_x 3), 2354#(<= main_x 4), 2355#(<= main_x 5), 2356#(<= main_x 6), 2357#(<= main_x 7), 2358#(<= main_x 8), 2359#(<= main_x 9), 2360#(<= main_x 10), 2361#(<= main_x 11), 2362#(<= main_x 12), 2363#(<= main_x 13), 2364#(<= main_x 14), 2365#(<= main_x 15), 2366#(<= main_x 16), 2367#(<= main_x 17)] [2018-07-23 13:54:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,828 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-23 13:54:49,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-23 13:54:49,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:54:49,829 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 29 states. [2018-07-23 13:54:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,844 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-07-23 13:54:49,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 13:54:49,845 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 29 [2018-07-23 13:54:49,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,845 INFO L225 Difference]: With dead ends: 33 [2018-07-23 13:54:49,845 INFO L226 Difference]: Without dead ends: 31 [2018-07-23 13:54:49,846 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:54:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-07-23 13:54:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-07-23 13:54:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-07-23 13:54:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-07-23 13:54:49,850 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2018-07-23 13:54:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,851 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-07-23 13:54:49,851 INFO L472 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-07-23 13:54:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-07-23 13:54:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 13:54:49,851 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,852 INFO L357 BasicCegarLoop]: trace histogram [27, 1, 1, 1] [2018-07-23 13:54:49,852 INFO L414 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1211302342, now seen corresponding path program 27 times [2018-07-23 13:54:49,852 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,965 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,966 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,966 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:54:49,966 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,967 INFO L185 omatonBuilderFactory]: Interpolants [2505#true, 2506#false, 2507#(<= main_x 0), 2508#(<= main_x 1), 2509#(<= main_x 2), 2510#(<= main_x 3), 2511#(<= main_x 4), 2512#(<= main_x 5), 2513#(<= main_x 6), 2514#(<= main_x 7), 2515#(<= main_x 8), 2516#(<= main_x 9), 2517#(<= main_x 10), 2518#(<= main_x 11), 2519#(<= main_x 12), 2520#(<= main_x 13), 2521#(<= main_x 14), 2522#(<= main_x 15), 2523#(<= main_x 16), 2524#(<= main_x 17), 2525#(<= main_x 18), 2526#(<= main_x 19), 2527#(<= main_x 20), 2528#(<= main_x 21), 2529#(<= main_x 22), 2530#(<= main_x 23), 2531#(<= main_x 24), 2532#(<= main_x 25), 2533#(<= main_x 26), 2534#(<= main_x 27)] [2018-07-23 13:54:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,968 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:54:49,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:54:49,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:54:49,969 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 30 states. [2018-07-23 13:54:49,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,989 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-07-23 13:54:49,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:54:49,990 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 30 [2018-07-23 13:54:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,990 INFO L225 Difference]: With dead ends: 34 [2018-07-23 13:54:49,990 INFO L226 Difference]: Without dead ends: 32 [2018-07-23 13:54:49,991 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:54:49,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-07-23 13:54:49,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-07-23 13:54:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-07-23 13:54:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-07-23 13:54:49,995 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2018-07-23 13:54:49,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,995 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-07-23 13:54:49,995 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:54:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-07-23 13:54:49,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 13:54:49,996 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,996 INFO L357 BasicCegarLoop]: trace histogram [28, 1, 1, 1] [2018-07-23 13:54:49,996 INFO L414 AbstractCegarLoop]: === Iteration 29 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1104336928, now seen corresponding path program 28 times [2018-07-23 13:54:49,997 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:50,114 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,115 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:50,115 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-07-23 13:54:50,115 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,116 INFO L185 omatonBuilderFactory]: Interpolants [2688#(<= main_x 19), 2689#(<= main_x 20), 2690#(<= main_x 21), 2691#(<= main_x 22), 2692#(<= main_x 23), 2693#(<= main_x 24), 2694#(<= main_x 25), 2695#(<= main_x 26), 2696#(<= main_x 27), 2697#(<= main_x 28), 2667#true, 2668#false, 2669#(<= main_x 0), 2670#(<= main_x 1), 2671#(<= main_x 2), 2672#(<= main_x 3), 2673#(<= main_x 4), 2674#(<= main_x 5), 2675#(<= main_x 6), 2676#(<= main_x 7), 2677#(<= main_x 8), 2678#(<= main_x 9), 2679#(<= main_x 10), 2680#(<= main_x 11), 2681#(<= main_x 12), 2682#(<= main_x 13), 2683#(<= main_x 14), 2684#(<= main_x 15), 2685#(<= main_x 16), 2686#(<= main_x 17), 2687#(<= main_x 18)] [2018-07-23 13:54:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-07-23 13:54:50,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-07-23 13:54:50,118 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:54:50,118 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 31 states. [2018-07-23 13:54:50,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:50,134 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-07-23 13:54:50,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-23 13:54:50,134 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 31 [2018-07-23 13:54:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:50,135 INFO L225 Difference]: With dead ends: 35 [2018-07-23 13:54:50,135 INFO L226 Difference]: Without dead ends: 33 [2018-07-23 13:54:50,136 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:54:50,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-23 13:54:50,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-07-23 13:54:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-23 13:54:50,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-07-23 13:54:50,140 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2018-07-23 13:54:50,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:50,140 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-07-23 13:54:50,140 INFO L472 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-07-23 13:54:50,140 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-07-23 13:54:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-23 13:54:50,141 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:50,141 INFO L357 BasicCegarLoop]: trace histogram [29, 1, 1, 1] [2018-07-23 13:54:50,141 INFO L414 AbstractCegarLoop]: === Iteration 30 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:50,142 INFO L82 PathProgramCache]: Analyzing trace with hash 125289734, now seen corresponding path program 29 times [2018-07-23 13:54:50,142 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:50,264 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,264 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:50,265 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:54:50,265 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,265 INFO L185 omatonBuilderFactory]: Interpolants [2834#true, 2835#false, 2836#(<= main_x 0), 2837#(<= main_x 1), 2838#(<= main_x 2), 2839#(<= main_x 3), 2840#(<= main_x 4), 2841#(<= main_x 5), 2842#(<= main_x 6), 2843#(<= main_x 7), 2844#(<= main_x 8), 2845#(<= main_x 9), 2846#(<= main_x 10), 2847#(<= main_x 11), 2848#(<= main_x 12), 2849#(<= main_x 13), 2850#(<= main_x 14), 2851#(<= main_x 15), 2852#(<= main_x 16), 2853#(<= main_x 17), 2854#(<= main_x 18), 2855#(<= main_x 19), 2856#(<= main_x 20), 2857#(<= main_x 21), 2858#(<= main_x 22), 2859#(<= main_x 23), 2860#(<= main_x 24), 2861#(<= main_x 25), 2862#(<= main_x 26), 2863#(<= main_x 27), 2864#(<= main_x 28), 2865#(<= main_x 29)] [2018-07-23 13:54:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,266 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:54:50,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:54:50,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:54:50,268 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 32 states. [2018-07-23 13:54:50,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:50,288 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-07-23 13:54:50,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:54:50,288 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 32 [2018-07-23 13:54:50,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:50,289 INFO L225 Difference]: With dead ends: 36 [2018-07-23 13:54:50,289 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:54:50,290 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:54:50,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:54:50,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-07-23 13:54:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-23 13:54:50,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-07-23 13:54:50,293 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2018-07-23 13:54:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:50,293 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-07-23 13:54:50,293 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:54:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-07-23 13:54:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 13:54:50,294 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:50,294 INFO L357 BasicCegarLoop]: trace histogram [30, 1, 1, 1] [2018-07-23 13:54:50,294 INFO L414 AbstractCegarLoop]: === Iteration 31 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:50,294 INFO L82 PathProgramCache]: Analyzing trace with hash -410989408, now seen corresponding path program 30 times [2018-07-23 13:54:50,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,424 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:50,424 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-07-23 13:54:50,424 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,425 INFO L185 omatonBuilderFactory]: Interpolants [3008#(<= main_x 0), 3009#(<= main_x 1), 3010#(<= main_x 2), 3011#(<= main_x 3), 3012#(<= main_x 4), 3013#(<= main_x 5), 3014#(<= main_x 6), 3015#(<= main_x 7), 3016#(<= main_x 8), 3017#(<= main_x 9), 3018#(<= main_x 10), 3019#(<= main_x 11), 3020#(<= main_x 12), 3021#(<= main_x 13), 3022#(<= main_x 14), 3023#(<= main_x 15), 3024#(<= main_x 16), 3025#(<= main_x 17), 3026#(<= main_x 18), 3027#(<= main_x 19), 3028#(<= main_x 20), 3029#(<= main_x 21), 3030#(<= main_x 22), 3031#(<= main_x 23), 3032#(<= main_x 24), 3033#(<= main_x 25), 3034#(<= main_x 26), 3035#(<= main_x 27), 3036#(<= main_x 28), 3037#(<= main_x 29), 3038#(<= main_x 30), 3006#true, 3007#false] [2018-07-23 13:54:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,425 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 13:54:50,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 13:54:50,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:54:50,427 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 33 states. [2018-07-23 13:54:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:50,444 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-07-23 13:54:50,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 13:54:50,444 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 33 [2018-07-23 13:54:50,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:50,445 INFO L225 Difference]: With dead ends: 37 [2018-07-23 13:54:50,445 INFO L226 Difference]: Without dead ends: 35 [2018-07-23 13:54:50,446 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:54:50,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-07-23 13:54:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-07-23 13:54:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-07-23 13:54:50,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-07-23 13:54:50,449 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2018-07-23 13:54:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:50,449 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-07-23 13:54:50,449 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 13:54:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-07-23 13:54:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 13:54:50,450 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:50,450 INFO L357 BasicCegarLoop]: trace histogram [31, 1, 1, 1] [2018-07-23 13:54:50,450 INFO L414 AbstractCegarLoop]: === Iteration 32 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:50,451 INFO L82 PathProgramCache]: Analyzing trace with hash 144226374, now seen corresponding path program 31 times [2018-07-23 13:54:50,451 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,582 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:50,582 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:54:50,582 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:50,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,583 INFO L185 omatonBuilderFactory]: Interpolants [3200#(<= main_x 15), 3201#(<= main_x 16), 3202#(<= main_x 17), 3203#(<= main_x 18), 3204#(<= main_x 19), 3205#(<= main_x 20), 3206#(<= main_x 21), 3207#(<= main_x 22), 3208#(<= main_x 23), 3209#(<= main_x 24), 3210#(<= main_x 25), 3211#(<= main_x 26), 3212#(<= main_x 27), 3213#(<= main_x 28), 3214#(<= main_x 29), 3215#(<= main_x 30), 3216#(<= main_x 31), 3183#true, 3184#false, 3185#(<= main_x 0), 3186#(<= main_x 1), 3187#(<= main_x 2), 3188#(<= main_x 3), 3189#(<= main_x 4), 3190#(<= main_x 5), 3191#(<= main_x 6), 3192#(<= main_x 7), 3193#(<= main_x 8), 3194#(<= main_x 9), 3195#(<= main_x 10), 3196#(<= main_x 11), 3197#(<= main_x 12), 3198#(<= main_x 13), 3199#(<= main_x 14)] [2018-07-23 13:54:50,583 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,584 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:54:50,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:54:50,585 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:54:50,585 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 34 states. [2018-07-23 13:54:50,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:50,600 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-07-23 13:54:50,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:54:50,601 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 34 [2018-07-23 13:54:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:50,601 INFO L225 Difference]: With dead ends: 38 [2018-07-23 13:54:50,601 INFO L226 Difference]: Without dead ends: 36 [2018-07-23 13:54:50,602 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:54:50,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-23 13:54:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-07-23 13:54:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 13:54:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-07-23 13:54:50,606 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2018-07-23 13:54:50,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:50,606 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-07-23 13:54:50,606 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:54:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-07-23 13:54:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 13:54:50,607 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:50,607 INFO L357 BasicCegarLoop]: trace histogram [32, 1, 1, 1] [2018-07-23 13:54:50,607 INFO L414 AbstractCegarLoop]: === Iteration 33 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:50,608 INFO L82 PathProgramCache]: Analyzing trace with hash 176046432, now seen corresponding path program 32 times [2018-07-23 13:54:50,608 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,778 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:50,778 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-07-23 13:54:50,778 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,779 INFO L185 omatonBuilderFactory]: Interpolants [3392#(<= main_x 25), 3393#(<= main_x 26), 3394#(<= main_x 27), 3395#(<= main_x 28), 3396#(<= main_x 29), 3397#(<= main_x 30), 3398#(<= main_x 31), 3399#(<= main_x 32), 3365#true, 3366#false, 3367#(<= main_x 0), 3368#(<= main_x 1), 3369#(<= main_x 2), 3370#(<= main_x 3), 3371#(<= main_x 4), 3372#(<= main_x 5), 3373#(<= main_x 6), 3374#(<= main_x 7), 3375#(<= main_x 8), 3376#(<= main_x 9), 3377#(<= main_x 10), 3378#(<= main_x 11), 3379#(<= main_x 12), 3380#(<= main_x 13), 3381#(<= main_x 14), 3382#(<= main_x 15), 3383#(<= main_x 16), 3384#(<= main_x 17), 3385#(<= main_x 18), 3386#(<= main_x 19), 3387#(<= main_x 20), 3388#(<= main_x 21), 3389#(<= main_x 22), 3390#(<= main_x 23), 3391#(<= main_x 24)] [2018-07-23 13:54:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,779 INFO L450 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-07-23 13:54:50,780 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-07-23 13:54:50,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:54:50,781 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 35 states. [2018-07-23 13:54:50,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:50,796 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-07-23 13:54:50,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 13:54:50,797 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 35 [2018-07-23 13:54:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:50,797 INFO L225 Difference]: With dead ends: 39 [2018-07-23 13:54:50,797 INFO L226 Difference]: Without dead ends: 37 [2018-07-23 13:54:50,799 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:54:50,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-23 13:54:50,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-23 13:54:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-23 13:54:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-07-23 13:54:50,802 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2018-07-23 13:54:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:50,802 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-07-23 13:54:50,802 INFO L472 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-07-23 13:54:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-07-23 13:54:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 13:54:50,803 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:50,803 INFO L357 BasicCegarLoop]: trace histogram [33, 1, 1, 1] [2018-07-23 13:54:50,803 INFO L414 AbstractCegarLoop]: === Iteration 34 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:50,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1162468230, now seen corresponding path program 33 times [2018-07-23 13:54:50,803 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,935 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:50,935 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:54:50,936 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,936 INFO L185 omatonBuilderFactory]: Interpolants [3584#(<= main_x 30), 3585#(<= main_x 31), 3586#(<= main_x 32), 3587#(<= main_x 33), 3552#true, 3553#false, 3554#(<= main_x 0), 3555#(<= main_x 1), 3556#(<= main_x 2), 3557#(<= main_x 3), 3558#(<= main_x 4), 3559#(<= main_x 5), 3560#(<= main_x 6), 3561#(<= main_x 7), 3562#(<= main_x 8), 3563#(<= main_x 9), 3564#(<= main_x 10), 3565#(<= main_x 11), 3566#(<= main_x 12), 3567#(<= main_x 13), 3568#(<= main_x 14), 3569#(<= main_x 15), 3570#(<= main_x 16), 3571#(<= main_x 17), 3572#(<= main_x 18), 3573#(<= main_x 19), 3574#(<= main_x 20), 3575#(<= main_x 21), 3576#(<= main_x 22), 3577#(<= main_x 23), 3578#(<= main_x 24), 3579#(<= main_x 25), 3580#(<= main_x 26), 3581#(<= main_x 27), 3582#(<= main_x 28), 3583#(<= main_x 29)] [2018-07-23 13:54:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,937 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:54:50,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:54:50,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:54:50,939 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 36 states. [2018-07-23 13:54:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:50,954 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-07-23 13:54:50,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:54:50,954 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 36 [2018-07-23 13:54:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:50,954 INFO L225 Difference]: With dead ends: 40 [2018-07-23 13:54:50,955 INFO L226 Difference]: Without dead ends: 38 [2018-07-23 13:54:50,955 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:54:50,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-07-23 13:54:50,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-07-23 13:54:50,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-07-23 13:54:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-07-23 13:54:50,958 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2018-07-23 13:54:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:50,959 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-07-23 13:54:50,959 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:54:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-07-23 13:54:50,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-23 13:54:50,959 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:50,959 INFO L357 BasicCegarLoop]: trace histogram [34, 1, 1, 1] [2018-07-23 13:54:50,960 INFO L414 AbstractCegarLoop]: === Iteration 35 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:50,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1676772896, now seen corresponding path program 34 times [2018-07-23 13:54:50,960 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,095 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,096 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,096 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-07-23 13:54:51,096 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,097 INFO L185 omatonBuilderFactory]: Interpolants [3776#(<= main_x 30), 3777#(<= main_x 31), 3778#(<= main_x 32), 3779#(<= main_x 33), 3780#(<= main_x 34), 3744#true, 3745#false, 3746#(<= main_x 0), 3747#(<= main_x 1), 3748#(<= main_x 2), 3749#(<= main_x 3), 3750#(<= main_x 4), 3751#(<= main_x 5), 3752#(<= main_x 6), 3753#(<= main_x 7), 3754#(<= main_x 8), 3755#(<= main_x 9), 3756#(<= main_x 10), 3757#(<= main_x 11), 3758#(<= main_x 12), 3759#(<= main_x 13), 3760#(<= main_x 14), 3761#(<= main_x 15), 3762#(<= main_x 16), 3763#(<= main_x 17), 3764#(<= main_x 18), 3765#(<= main_x 19), 3766#(<= main_x 20), 3767#(<= main_x 21), 3768#(<= main_x 22), 3769#(<= main_x 23), 3770#(<= main_x 24), 3771#(<= main_x 25), 3772#(<= main_x 26), 3773#(<= main_x 27), 3774#(<= main_x 28), 3775#(<= main_x 29)] [2018-07-23 13:54:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,097 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-23 13:54:51,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-23 13:54:51,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:54:51,099 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 37 states. [2018-07-23 13:54:51,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:51,114 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-07-23 13:54:51,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-23 13:54:51,115 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 37 [2018-07-23 13:54:51,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:51,115 INFO L225 Difference]: With dead ends: 41 [2018-07-23 13:54:51,115 INFO L226 Difference]: Without dead ends: 39 [2018-07-23 13:54:51,116 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:54:51,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-07-23 13:54:51,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-07-23 13:54:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-07-23 13:54:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-07-23 13:54:51,120 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2018-07-23 13:54:51,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:51,120 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-07-23 13:54:51,120 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-23 13:54:51,120 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-07-23 13:54:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 13:54:51,121 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:51,121 INFO L357 BasicCegarLoop]: trace histogram [35, 1, 1, 1] [2018-07-23 13:54:51,121 INFO L414 AbstractCegarLoop]: === Iteration 36 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:51,121 INFO L82 PathProgramCache]: Analyzing trace with hash 440348358, now seen corresponding path program 35 times [2018-07-23 13:54:51,122 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,267 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,267 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:54:51,267 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,268 INFO L185 omatonBuilderFactory]: Interpolants [3968#(<= main_x 25), 3969#(<= main_x 26), 3970#(<= main_x 27), 3971#(<= main_x 28), 3972#(<= main_x 29), 3973#(<= main_x 30), 3974#(<= main_x 31), 3975#(<= main_x 32), 3976#(<= main_x 33), 3977#(<= main_x 34), 3978#(<= main_x 35), 3941#true, 3942#false, 3943#(<= main_x 0), 3944#(<= main_x 1), 3945#(<= main_x 2), 3946#(<= main_x 3), 3947#(<= main_x 4), 3948#(<= main_x 5), 3949#(<= main_x 6), 3950#(<= main_x 7), 3951#(<= main_x 8), 3952#(<= main_x 9), 3953#(<= main_x 10), 3954#(<= main_x 11), 3955#(<= main_x 12), 3956#(<= main_x 13), 3957#(<= main_x 14), 3958#(<= main_x 15), 3959#(<= main_x 16), 3960#(<= main_x 17), 3961#(<= main_x 18), 3962#(<= main_x 19), 3963#(<= main_x 20), 3964#(<= main_x 21), 3965#(<= main_x 22), 3966#(<= main_x 23), 3967#(<= main_x 24)] [2018-07-23 13:54:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,269 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:54:51,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:54:51,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:54:51,270 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 38 states. [2018-07-23 13:54:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:51,287 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-07-23 13:54:51,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:54:51,287 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 38 [2018-07-23 13:54:51,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:51,288 INFO L225 Difference]: With dead ends: 42 [2018-07-23 13:54:51,288 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:54:51,289 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:54:51,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:54:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-07-23 13:54:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-23 13:54:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-07-23 13:54:51,292 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2018-07-23 13:54:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:51,292 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-07-23 13:54:51,292 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:54:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-07-23 13:54:51,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 13:54:51,293 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:51,293 INFO L357 BasicCegarLoop]: trace histogram [36, 1, 1, 1] [2018-07-23 13:54:51,293 INFO L414 AbstractCegarLoop]: === Iteration 37 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:51,294 INFO L82 PathProgramCache]: Analyzing trace with hash 765893344, now seen corresponding path program 36 times [2018-07-23 13:54:51,294 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,437 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,437 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,438 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-07-23 13:54:51,438 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,438 INFO L185 omatonBuilderFactory]: Interpolants [4160#(<= main_x 15), 4161#(<= main_x 16), 4162#(<= main_x 17), 4163#(<= main_x 18), 4164#(<= main_x 19), 4165#(<= main_x 20), 4166#(<= main_x 21), 4167#(<= main_x 22), 4168#(<= main_x 23), 4169#(<= main_x 24), 4170#(<= main_x 25), 4171#(<= main_x 26), 4172#(<= main_x 27), 4173#(<= main_x 28), 4174#(<= main_x 29), 4175#(<= main_x 30), 4176#(<= main_x 31), 4177#(<= main_x 32), 4178#(<= main_x 33), 4179#(<= main_x 34), 4180#(<= main_x 35), 4181#(<= main_x 36), 4143#true, 4144#false, 4145#(<= main_x 0), 4146#(<= main_x 1), 4147#(<= main_x 2), 4148#(<= main_x 3), 4149#(<= main_x 4), 4150#(<= main_x 5), 4151#(<= main_x 6), 4152#(<= main_x 7), 4153#(<= main_x 8), 4154#(<= main_x 9), 4155#(<= main_x 10), 4156#(<= main_x 11), 4157#(<= main_x 12), 4158#(<= main_x 13), 4159#(<= main_x 14)] [2018-07-23 13:54:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,439 INFO L450 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-07-23 13:54:51,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-07-23 13:54:51,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:54:51,440 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 39 states. [2018-07-23 13:54:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:51,460 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-07-23 13:54:51,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-07-23 13:54:51,460 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 39 [2018-07-23 13:54:51,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:51,461 INFO L225 Difference]: With dead ends: 43 [2018-07-23 13:54:51,461 INFO L226 Difference]: Without dead ends: 41 [2018-07-23 13:54:51,462 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:54:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-07-23 13:54:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-07-23 13:54:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-07-23 13:54:51,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-07-23 13:54:51,464 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2018-07-23 13:54:51,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:51,465 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-07-23 13:54:51,465 INFO L472 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-07-23 13:54:51,465 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-07-23 13:54:51,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 13:54:51,465 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:51,465 INFO L357 BasicCegarLoop]: trace histogram [37, 1, 1, 1] [2018-07-23 13:54:51,466 INFO L414 AbstractCegarLoop]: === Iteration 38 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:51,466 INFO L82 PathProgramCache]: Analyzing trace with hash -2027113978, now seen corresponding path program 37 times [2018-07-23 13:54:51,466 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,614 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,615 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:54:51,615 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,615 INFO L185 omatonBuilderFactory]: Interpolants [4352#(<= main_x 0), 4353#(<= main_x 1), 4354#(<= main_x 2), 4355#(<= main_x 3), 4356#(<= main_x 4), 4357#(<= main_x 5), 4358#(<= main_x 6), 4359#(<= main_x 7), 4360#(<= main_x 8), 4361#(<= main_x 9), 4362#(<= main_x 10), 4363#(<= main_x 11), 4364#(<= main_x 12), 4365#(<= main_x 13), 4366#(<= main_x 14), 4367#(<= main_x 15), 4368#(<= main_x 16), 4369#(<= main_x 17), 4370#(<= main_x 18), 4371#(<= main_x 19), 4372#(<= main_x 20), 4373#(<= main_x 21), 4374#(<= main_x 22), 4375#(<= main_x 23), 4376#(<= main_x 24), 4377#(<= main_x 25), 4378#(<= main_x 26), 4379#(<= main_x 27), 4380#(<= main_x 28), 4381#(<= main_x 29), 4382#(<= main_x 30), 4383#(<= main_x 31), 4384#(<= main_x 32), 4385#(<= main_x 33), 4386#(<= main_x 34), 4387#(<= main_x 35), 4388#(<= main_x 36), 4389#(<= main_x 37), 4350#true, 4351#false] [2018-07-23 13:54:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,616 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:54:51,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:54:51,617 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:54:51,617 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 40 states. [2018-07-23 13:54:51,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:51,637 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-07-23 13:54:51,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:54:51,637 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 40 [2018-07-23 13:54:51,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:51,638 INFO L225 Difference]: With dead ends: 44 [2018-07-23 13:54:51,638 INFO L226 Difference]: Without dead ends: 42 [2018-07-23 13:54:51,639 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:54:51,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-07-23 13:54:51,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-07-23 13:54:51,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-07-23 13:54:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-07-23 13:54:51,642 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2018-07-23 13:54:51,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:51,642 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-07-23 13:54:51,642 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:54:51,643 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-07-23 13:54:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 13:54:51,643 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:51,643 INFO L357 BasicCegarLoop]: trace histogram [38, 1, 1, 1] [2018-07-23 13:54:51,643 INFO L414 AbstractCegarLoop]: === Iteration 39 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:51,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1583972256, now seen corresponding path program 38 times [2018-07-23 13:54:51,644 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,795 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,795 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-07-23 13:54:51,795 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,796 INFO L185 omatonBuilderFactory]: Interpolants [4562#true, 4563#false, 4564#(<= main_x 0), 4565#(<= main_x 1), 4566#(<= main_x 2), 4567#(<= main_x 3), 4568#(<= main_x 4), 4569#(<= main_x 5), 4570#(<= main_x 6), 4571#(<= main_x 7), 4572#(<= main_x 8), 4573#(<= main_x 9), 4574#(<= main_x 10), 4575#(<= main_x 11), 4576#(<= main_x 12), 4577#(<= main_x 13), 4578#(<= main_x 14), 4579#(<= main_x 15), 4580#(<= main_x 16), 4581#(<= main_x 17), 4582#(<= main_x 18), 4583#(<= main_x 19), 4584#(<= main_x 20), 4585#(<= main_x 21), 4586#(<= main_x 22), 4587#(<= main_x 23), 4588#(<= main_x 24), 4589#(<= main_x 25), 4590#(<= main_x 26), 4591#(<= main_x 27), 4592#(<= main_x 28), 4593#(<= main_x 29), 4594#(<= main_x 30), 4595#(<= main_x 31), 4596#(<= main_x 32), 4597#(<= main_x 33), 4598#(<= main_x 34), 4599#(<= main_x 35), 4600#(<= main_x 36), 4601#(<= main_x 37), 4602#(<= main_x 38)] [2018-07-23 13:54:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,796 INFO L450 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-07-23 13:54:51,797 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-07-23 13:54:51,798 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:54:51,798 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 41 states. [2018-07-23 13:54:51,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:51,823 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-07-23 13:54:51,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-23 13:54:51,824 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 41 [2018-07-23 13:54:51,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:51,824 INFO L225 Difference]: With dead ends: 45 [2018-07-23 13:54:51,824 INFO L226 Difference]: Without dead ends: 43 [2018-07-23 13:54:51,825 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:54:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-07-23 13:54:51,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-07-23 13:54:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-07-23 13:54:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-07-23 13:54:51,828 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2018-07-23 13:54:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:51,829 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-07-23 13:54:51,829 INFO L472 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-07-23 13:54:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-07-23 13:54:51,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 13:54:51,829 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:51,829 INFO L357 BasicCegarLoop]: trace histogram [39, 1, 1, 1] [2018-07-23 13:54:51,829 INFO L414 AbstractCegarLoop]: === Iteration 40 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:51,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1858495814, now seen corresponding path program 39 times [2018-07-23 13:54:51,830 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,988 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,988 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:54:51,988 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,988 INFO L185 omatonBuilderFactory]: Interpolants [4800#(<= main_x 19), 4801#(<= main_x 20), 4802#(<= main_x 21), 4803#(<= main_x 22), 4804#(<= main_x 23), 4805#(<= main_x 24), 4806#(<= main_x 25), 4807#(<= main_x 26), 4808#(<= main_x 27), 4809#(<= main_x 28), 4810#(<= main_x 29), 4811#(<= main_x 30), 4812#(<= main_x 31), 4813#(<= main_x 32), 4814#(<= main_x 33), 4815#(<= main_x 34), 4816#(<= main_x 35), 4817#(<= main_x 36), 4818#(<= main_x 37), 4819#(<= main_x 38), 4820#(<= main_x 39), 4779#true, 4780#false, 4781#(<= main_x 0), 4782#(<= main_x 1), 4783#(<= main_x 2), 4784#(<= main_x 3), 4785#(<= main_x 4), 4786#(<= main_x 5), 4787#(<= main_x 6), 4788#(<= main_x 7), 4789#(<= main_x 8), 4790#(<= main_x 9), 4791#(<= main_x 10), 4792#(<= main_x 11), 4793#(<= main_x 12), 4794#(<= main_x 13), 4795#(<= main_x 14), 4796#(<= main_x 15), 4797#(<= main_x 16), 4798#(<= main_x 17), 4799#(<= main_x 18)] [2018-07-23 13:54:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,989 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:54:51,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:54:51,990 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:54:51,991 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 42 states. [2018-07-23 13:54:52,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:52,009 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-07-23 13:54:52,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:54:52,009 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 42 [2018-07-23 13:54:52,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:52,010 INFO L225 Difference]: With dead ends: 46 [2018-07-23 13:54:52,010 INFO L226 Difference]: Without dead ends: 44 [2018-07-23 13:54:52,012 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:54:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-23 13:54:52,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-23 13:54:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 13:54:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-07-23 13:54:52,014 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2018-07-23 13:54:52,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,015 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-07-23 13:54:52,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:54:52,015 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-07-23 13:54:52,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-23 13:54:52,015 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,016 INFO L357 BasicCegarLoop]: trace histogram [40, 1, 1, 1] [2018-07-23 13:54:52,016 INFO L414 AbstractCegarLoop]: === Iteration 41 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1778791520, now seen corresponding path program 40 times [2018-07-23 13:54:52,016 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,176 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:52,176 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-07-23 13:54:52,177 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,177 INFO L185 omatonBuilderFactory]: Interpolants [5001#true, 5002#false, 5003#(<= main_x 0), 5004#(<= main_x 1), 5005#(<= main_x 2), 5006#(<= main_x 3), 5007#(<= main_x 4), 5008#(<= main_x 5), 5009#(<= main_x 6), 5010#(<= main_x 7), 5011#(<= main_x 8), 5012#(<= main_x 9), 5013#(<= main_x 10), 5014#(<= main_x 11), 5015#(<= main_x 12), 5016#(<= main_x 13), 5017#(<= main_x 14), 5018#(<= main_x 15), 5019#(<= main_x 16), 5020#(<= main_x 17), 5021#(<= main_x 18), 5022#(<= main_x 19), 5023#(<= main_x 20), 5024#(<= main_x 21), 5025#(<= main_x 22), 5026#(<= main_x 23), 5027#(<= main_x 24), 5028#(<= main_x 25), 5029#(<= main_x 26), 5030#(<= main_x 27), 5031#(<= main_x 28), 5032#(<= main_x 29), 5033#(<= main_x 30), 5034#(<= main_x 31), 5035#(<= main_x 32), 5036#(<= main_x 33), 5037#(<= main_x 34), 5038#(<= main_x 35), 5039#(<= main_x 36), 5040#(<= main_x 37), 5041#(<= main_x 38), 5042#(<= main_x 39), 5043#(<= main_x 40)] [2018-07-23 13:54:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,178 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-23 13:54:52,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-23 13:54:52,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:54:52,180 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 43 states. [2018-07-23 13:54:52,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:52,203 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-07-23 13:54:52,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-07-23 13:54:52,203 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 43 [2018-07-23 13:54:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:52,204 INFO L225 Difference]: With dead ends: 47 [2018-07-23 13:54:52,204 INFO L226 Difference]: Without dead ends: 45 [2018-07-23 13:54:52,205 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:54:52,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-07-23 13:54:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-07-23 13:54:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-07-23 13:54:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-07-23 13:54:52,208 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2018-07-23 13:54:52,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,208 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-07-23 13:54:52,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-23 13:54:52,208 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-07-23 13:54:52,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 13:54:52,209 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,209 INFO L357 BasicCegarLoop]: trace histogram [41, 1, 1, 1] [2018-07-23 13:54:52,209 INFO L414 AbstractCegarLoop]: === Iteration 42 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,209 INFO L82 PathProgramCache]: Analyzing trace with hash -692041594, now seen corresponding path program 41 times [2018-07-23 13:54:52,209 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,369 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:52,369 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:54:52,370 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,370 INFO L185 omatonBuilderFactory]: Interpolants [5248#(<= main_x 18), 5249#(<= main_x 19), 5250#(<= main_x 20), 5251#(<= main_x 21), 5252#(<= main_x 22), 5253#(<= main_x 23), 5254#(<= main_x 24), 5255#(<= main_x 25), 5256#(<= main_x 26), 5257#(<= main_x 27), 5258#(<= main_x 28), 5259#(<= main_x 29), 5260#(<= main_x 30), 5261#(<= main_x 31), 5262#(<= main_x 32), 5263#(<= main_x 33), 5264#(<= main_x 34), 5265#(<= main_x 35), 5266#(<= main_x 36), 5267#(<= main_x 37), 5268#(<= main_x 38), 5269#(<= main_x 39), 5270#(<= main_x 40), 5271#(<= main_x 41), 5228#true, 5229#false, 5230#(<= main_x 0), 5231#(<= main_x 1), 5232#(<= main_x 2), 5233#(<= main_x 3), 5234#(<= main_x 4), 5235#(<= main_x 5), 5236#(<= main_x 6), 5237#(<= main_x 7), 5238#(<= main_x 8), 5239#(<= main_x 9), 5240#(<= main_x 10), 5241#(<= main_x 11), 5242#(<= main_x 12), 5243#(<= main_x 13), 5244#(<= main_x 14), 5245#(<= main_x 15), 5246#(<= main_x 16), 5247#(<= main_x 17)] [2018-07-23 13:54:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:54:52,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:54:52,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:54:52,372 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 44 states. [2018-07-23 13:54:52,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:52,390 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-07-23 13:54:52,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:54:52,391 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 44 [2018-07-23 13:54:52,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:52,391 INFO L225 Difference]: With dead ends: 48 [2018-07-23 13:54:52,391 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:54:52,392 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:54:52,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:54:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 13:54:52,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 13:54:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-07-23 13:54:52,395 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2018-07-23 13:54:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,395 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-07-23 13:54:52,395 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:54:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-07-23 13:54:52,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-07-23 13:54:52,396 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,396 INFO L357 BasicCegarLoop]: trace histogram [42, 1, 1, 1] [2018-07-23 13:54:52,396 INFO L414 AbstractCegarLoop]: === Iteration 43 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,396 INFO L82 PathProgramCache]: Analyzing trace with hash 21543200, now seen corresponding path program 42 times [2018-07-23 13:54:52,396 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,565 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:52,565 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-07-23 13:54:52,565 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,566 INFO L185 omatonBuilderFactory]: Interpolants [5504#(<= main_x 42), 5460#true, 5461#false, 5462#(<= main_x 0), 5463#(<= main_x 1), 5464#(<= main_x 2), 5465#(<= main_x 3), 5466#(<= main_x 4), 5467#(<= main_x 5), 5468#(<= main_x 6), 5469#(<= main_x 7), 5470#(<= main_x 8), 5471#(<= main_x 9), 5472#(<= main_x 10), 5473#(<= main_x 11), 5474#(<= main_x 12), 5475#(<= main_x 13), 5476#(<= main_x 14), 5477#(<= main_x 15), 5478#(<= main_x 16), 5479#(<= main_x 17), 5480#(<= main_x 18), 5481#(<= main_x 19), 5482#(<= main_x 20), 5483#(<= main_x 21), 5484#(<= main_x 22), 5485#(<= main_x 23), 5486#(<= main_x 24), 5487#(<= main_x 25), 5488#(<= main_x 26), 5489#(<= main_x 27), 5490#(<= main_x 28), 5491#(<= main_x 29), 5492#(<= main_x 30), 5493#(<= main_x 31), 5494#(<= main_x 32), 5495#(<= main_x 33), 5496#(<= main_x 34), 5497#(<= main_x 35), 5498#(<= main_x 36), 5499#(<= main_x 37), 5500#(<= main_x 38), 5501#(<= main_x 39), 5502#(<= main_x 40), 5503#(<= main_x 41)] [2018-07-23 13:54:52,566 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,566 INFO L450 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-07-23 13:54:52,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-07-23 13:54:52,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:54:52,568 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 45 states. [2018-07-23 13:54:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:52,590 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-07-23 13:54:52,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-07-23 13:54:52,590 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 45 [2018-07-23 13:54:52,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:52,591 INFO L225 Difference]: With dead ends: 49 [2018-07-23 13:54:52,591 INFO L226 Difference]: Without dead ends: 47 [2018-07-23 13:54:52,592 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:54:52,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-23 13:54:52,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-07-23 13:54:52,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-07-23 13:54:52,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-07-23 13:54:52,597 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-07-23 13:54:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,597 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-07-23 13:54:52,597 INFO L472 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-07-23 13:54:52,597 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-07-23 13:54:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-07-23 13:54:52,598 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,598 INFO L357 BasicCegarLoop]: trace histogram [43, 1, 1, 1] [2018-07-23 13:54:52,598 INFO L414 AbstractCegarLoop]: === Iteration 44 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,598 INFO L82 PathProgramCache]: Analyzing trace with hash 667835334, now seen corresponding path program 43 times [2018-07-23 13:54:52,600 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,776 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:52,777 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:54:52,777 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,777 INFO L185 omatonBuilderFactory]: Interpolants [5697#true, 5698#false, 5699#(<= main_x 0), 5700#(<= main_x 1), 5701#(<= main_x 2), 5702#(<= main_x 3), 5703#(<= main_x 4), 5704#(<= main_x 5), 5705#(<= main_x 6), 5706#(<= main_x 7), 5707#(<= main_x 8), 5708#(<= main_x 9), 5709#(<= main_x 10), 5710#(<= main_x 11), 5711#(<= main_x 12), 5712#(<= main_x 13), 5713#(<= main_x 14), 5714#(<= main_x 15), 5715#(<= main_x 16), 5716#(<= main_x 17), 5717#(<= main_x 18), 5718#(<= main_x 19), 5719#(<= main_x 20), 5720#(<= main_x 21), 5721#(<= main_x 22), 5722#(<= main_x 23), 5723#(<= main_x 24), 5724#(<= main_x 25), 5725#(<= main_x 26), 5726#(<= main_x 27), 5727#(<= main_x 28), 5728#(<= main_x 29), 5729#(<= main_x 30), 5730#(<= main_x 31), 5731#(<= main_x 32), 5732#(<= main_x 33), 5733#(<= main_x 34), 5734#(<= main_x 35), 5735#(<= main_x 36), 5736#(<= main_x 37), 5737#(<= main_x 38), 5738#(<= main_x 39), 5739#(<= main_x 40), 5740#(<= main_x 41), 5741#(<= main_x 42), 5742#(<= main_x 43)] [2018-07-23 13:54:52,778 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:52,778 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:54:52,779 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:54:52,780 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:54:52,781 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 46 states. [2018-07-23 13:54:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:52,812 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-07-23 13:54:52,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:54:52,813 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 46 [2018-07-23 13:54:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:52,813 INFO L225 Difference]: With dead ends: 50 [2018-07-23 13:54:52,814 INFO L226 Difference]: Without dead ends: 48 [2018-07-23 13:54:52,816 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:54:52,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-23 13:54:52,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-23 13:54:52,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 13:54:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-07-23 13:54:52,820 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2018-07-23 13:54:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,820 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-07-23 13:54:52,820 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:54:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-07-23 13:54:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 13:54:52,821 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,821 INFO L357 BasicCegarLoop]: trace histogram [44, 1, 1, 1] [2018-07-23 13:54:52,821 INFO L414 AbstractCegarLoop]: === Iteration 45 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,821 INFO L82 PathProgramCache]: Analyzing trace with hash -771944992, now seen corresponding path program 44 times [2018-07-23 13:54:52,822 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,031 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:53,031 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-07-23 13:54:53,032 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,032 INFO L185 omatonBuilderFactory]: Interpolants [5952#(<= main_x 11), 5953#(<= main_x 12), 5954#(<= main_x 13), 5955#(<= main_x 14), 5956#(<= main_x 15), 5957#(<= main_x 16), 5958#(<= main_x 17), 5959#(<= main_x 18), 5960#(<= main_x 19), 5961#(<= main_x 20), 5962#(<= main_x 21), 5963#(<= main_x 22), 5964#(<= main_x 23), 5965#(<= main_x 24), 5966#(<= main_x 25), 5967#(<= main_x 26), 5968#(<= main_x 27), 5969#(<= main_x 28), 5970#(<= main_x 29), 5971#(<= main_x 30), 5972#(<= main_x 31), 5973#(<= main_x 32), 5974#(<= main_x 33), 5975#(<= main_x 34), 5976#(<= main_x 35), 5977#(<= main_x 36), 5978#(<= main_x 37), 5979#(<= main_x 38), 5980#(<= main_x 39), 5981#(<= main_x 40), 5982#(<= main_x 41), 5983#(<= main_x 42), 5984#(<= main_x 43), 5985#(<= main_x 44), 5939#true, 5940#false, 5941#(<= main_x 0), 5942#(<= main_x 1), 5943#(<= main_x 2), 5944#(<= main_x 3), 5945#(<= main_x 4), 5946#(<= main_x 5), 5947#(<= main_x 6), 5948#(<= main_x 7), 5949#(<= main_x 8), 5950#(<= main_x 9), 5951#(<= main_x 10)] [2018-07-23 13:54:53,033 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,033 INFO L450 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-07-23 13:54:53,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-07-23 13:54:53,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:54:53,035 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 47 states. [2018-07-23 13:54:53,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:53,058 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-07-23 13:54:53,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-07-23 13:54:53,059 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 47 [2018-07-23 13:54:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:53,059 INFO L225 Difference]: With dead ends: 51 [2018-07-23 13:54:53,059 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 13:54:53,061 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:54:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 13:54:53,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-07-23 13:54:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-07-23 13:54:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-07-23 13:54:53,064 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2018-07-23 13:54:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:53,064 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-07-23 13:54:53,064 INFO L472 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-07-23 13:54:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-07-23 13:54:53,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 13:54:53,065 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:53,065 INFO L357 BasicCegarLoop]: trace histogram [45, 1, 1, 1] [2018-07-23 13:54:53,065 INFO L414 AbstractCegarLoop]: === Iteration 46 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:53,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1839505158, now seen corresponding path program 45 times [2018-07-23 13:54:53,065 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:53,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:54:53,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,284 INFO L185 omatonBuilderFactory]: Interpolants [6208#(<= main_x 20), 6209#(<= main_x 21), 6210#(<= main_x 22), 6211#(<= main_x 23), 6212#(<= main_x 24), 6213#(<= main_x 25), 6214#(<= main_x 26), 6215#(<= main_x 27), 6216#(<= main_x 28), 6217#(<= main_x 29), 6218#(<= main_x 30), 6219#(<= main_x 31), 6220#(<= main_x 32), 6221#(<= main_x 33), 6222#(<= main_x 34), 6223#(<= main_x 35), 6224#(<= main_x 36), 6225#(<= main_x 37), 6226#(<= main_x 38), 6227#(<= main_x 39), 6228#(<= main_x 40), 6229#(<= main_x 41), 6230#(<= main_x 42), 6231#(<= main_x 43), 6232#(<= main_x 44), 6233#(<= main_x 45), 6186#true, 6187#false, 6188#(<= main_x 0), 6189#(<= main_x 1), 6190#(<= main_x 2), 6191#(<= main_x 3), 6192#(<= main_x 4), 6193#(<= main_x 5), 6194#(<= main_x 6), 6195#(<= main_x 7), 6196#(<= main_x 8), 6197#(<= main_x 9), 6198#(<= main_x 10), 6199#(<= main_x 11), 6200#(<= main_x 12), 6201#(<= main_x 13), 6202#(<= main_x 14), 6203#(<= main_x 15), 6204#(<= main_x 16), 6205#(<= main_x 17), 6206#(<= main_x 18), 6207#(<= main_x 19)] [2018-07-23 13:54:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,284 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:54:53,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:54:53,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:54:53,286 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 48 states. [2018-07-23 13:54:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:53,308 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-07-23 13:54:53,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:54:53,308 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 48 [2018-07-23 13:54:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:53,309 INFO L225 Difference]: With dead ends: 52 [2018-07-23 13:54:53,309 INFO L226 Difference]: Without dead ends: 50 [2018-07-23 13:54:53,310 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:54:53,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-07-23 13:54:53,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-07-23 13:54:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-07-23 13:54:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-07-23 13:54:53,313 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2018-07-23 13:54:53,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:53,313 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-07-23 13:54:53,313 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:54:53,313 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-07-23 13:54:53,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 13:54:53,314 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:53,314 INFO L357 BasicCegarLoop]: trace histogram [46, 1, 1, 1] [2018-07-23 13:54:53,314 INFO L414 AbstractCegarLoop]: === Iteration 47 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:53,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1190081184, now seen corresponding path program 46 times [2018-07-23 13:54:53,314 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:53,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,474 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:53,474 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-07-23 13:54:53,474 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,475 INFO L185 omatonBuilderFactory]: Interpolants [6438#true, 6439#false, 6440#(<= main_x 0), 6441#(<= main_x 1), 6442#(<= main_x 2), 6443#(<= main_x 3), 6444#(<= main_x 4), 6445#(<= main_x 5), 6446#(<= main_x 6), 6447#(<= main_x 7), 6448#(<= main_x 8), 6449#(<= main_x 9), 6450#(<= main_x 10), 6451#(<= main_x 11), 6452#(<= main_x 12), 6453#(<= main_x 13), 6454#(<= main_x 14), 6455#(<= main_x 15), 6456#(<= main_x 16), 6457#(<= main_x 17), 6458#(<= main_x 18), 6459#(<= main_x 19), 6460#(<= main_x 20), 6461#(<= main_x 21), 6462#(<= main_x 22), 6463#(<= main_x 23), 6464#(<= main_x 24), 6465#(<= main_x 25), 6466#(<= main_x 26), 6467#(<= main_x 27), 6468#(<= main_x 28), 6469#(<= main_x 29), 6470#(<= main_x 30), 6471#(<= main_x 31), 6472#(<= main_x 32), 6473#(<= main_x 33), 6474#(<= main_x 34), 6475#(<= main_x 35), 6476#(<= main_x 36), 6477#(<= main_x 37), 6478#(<= main_x 38), 6479#(<= main_x 39), 6480#(<= main_x 40), 6481#(<= main_x 41), 6482#(<= main_x 42), 6483#(<= main_x 43), 6484#(<= main_x 44), 6485#(<= main_x 45), 6486#(<= main_x 46)] [2018-07-23 13:54:53,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,475 INFO L450 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-07-23 13:54:53,476 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-07-23 13:54:53,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:54:53,477 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 49 states. [2018-07-23 13:54:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:53,496 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-07-23 13:54:53,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-07-23 13:54:53,497 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 49 [2018-07-23 13:54:53,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:53,497 INFO L225 Difference]: With dead ends: 53 [2018-07-23 13:54:53,498 INFO L226 Difference]: Without dead ends: 51 [2018-07-23 13:54:53,499 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:54:53,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-07-23 13:54:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-07-23 13:54:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-07-23 13:54:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-07-23 13:54:53,502 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2018-07-23 13:54:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:53,502 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-07-23 13:54:53,502 INFO L472 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-07-23 13:54:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-07-23 13:54:53,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-07-23 13:54:53,503 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:53,503 INFO L357 BasicCegarLoop]: trace histogram [47, 1, 1, 1] [2018-07-23 13:54:53,503 INFO L414 AbstractCegarLoop]: === Iteration 48 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:53,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1762192826, now seen corresponding path program 47 times [2018-07-23 13:54:53,503 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,663 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:53,663 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:54:53,663 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,664 INFO L185 omatonBuilderFactory]: Interpolants [6695#true, 6696#false, 6697#(<= main_x 0), 6698#(<= main_x 1), 6699#(<= main_x 2), 6700#(<= main_x 3), 6701#(<= main_x 4), 6702#(<= main_x 5), 6703#(<= main_x 6), 6704#(<= main_x 7), 6705#(<= main_x 8), 6706#(<= main_x 9), 6707#(<= main_x 10), 6708#(<= main_x 11), 6709#(<= main_x 12), 6710#(<= main_x 13), 6711#(<= main_x 14), 6712#(<= main_x 15), 6713#(<= main_x 16), 6714#(<= main_x 17), 6715#(<= main_x 18), 6716#(<= main_x 19), 6717#(<= main_x 20), 6718#(<= main_x 21), 6719#(<= main_x 22), 6720#(<= main_x 23), 6721#(<= main_x 24), 6722#(<= main_x 25), 6723#(<= main_x 26), 6724#(<= main_x 27), 6725#(<= main_x 28), 6726#(<= main_x 29), 6727#(<= main_x 30), 6728#(<= main_x 31), 6729#(<= main_x 32), 6730#(<= main_x 33), 6731#(<= main_x 34), 6732#(<= main_x 35), 6733#(<= main_x 36), 6734#(<= main_x 37), 6735#(<= main_x 38), 6736#(<= main_x 39), 6737#(<= main_x 40), 6738#(<= main_x 41), 6739#(<= main_x 42), 6740#(<= main_x 43), 6741#(<= main_x 44), 6742#(<= main_x 45), 6743#(<= main_x 46), 6744#(<= main_x 47)] [2018-07-23 13:54:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,665 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:54:53,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:54:53,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:54:53,666 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 50 states. [2018-07-23 13:54:53,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:53,687 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-07-23 13:54:53,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:54:53,687 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 50 [2018-07-23 13:54:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:53,688 INFO L225 Difference]: With dead ends: 54 [2018-07-23 13:54:53,688 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:54:53,689 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:54:53,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:54:53,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-07-23 13:54:53,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 13:54:53,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-07-23 13:54:53,693 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2018-07-23 13:54:53,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:53,694 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-07-23 13:54:53,694 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:54:53,694 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-07-23 13:54:53,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 13:54:53,694 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:53,694 INFO L357 BasicCegarLoop]: trace histogram [48, 1, 1, 1] [2018-07-23 13:54:53,695 INFO L414 AbstractCegarLoop]: === Iteration 49 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:53,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1206593376, now seen corresponding path program 48 times [2018-07-23 13:54:53,695 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,857 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:53,857 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-07-23 13:54:53,857 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:53,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,858 INFO L185 omatonBuilderFactory]: Interpolants [6957#true, 6958#false, 6959#(<= main_x 0), 6960#(<= main_x 1), 6961#(<= main_x 2), 6962#(<= main_x 3), 6963#(<= main_x 4), 6964#(<= main_x 5), 6965#(<= main_x 6), 6966#(<= main_x 7), 6967#(<= main_x 8), 6968#(<= main_x 9), 6969#(<= main_x 10), 6970#(<= main_x 11), 6971#(<= main_x 12), 6972#(<= main_x 13), 6973#(<= main_x 14), 6974#(<= main_x 15), 6975#(<= main_x 16), 6976#(<= main_x 17), 6977#(<= main_x 18), 6978#(<= main_x 19), 6979#(<= main_x 20), 6980#(<= main_x 21), 6981#(<= main_x 22), 6982#(<= main_x 23), 6983#(<= main_x 24), 6984#(<= main_x 25), 6985#(<= main_x 26), 6986#(<= main_x 27), 6987#(<= main_x 28), 6988#(<= main_x 29), 6989#(<= main_x 30), 6990#(<= main_x 31), 6991#(<= main_x 32), 6992#(<= main_x 33), 6993#(<= main_x 34), 6994#(<= main_x 35), 6995#(<= main_x 36), 6996#(<= main_x 37), 6997#(<= main_x 38), 6998#(<= main_x 39), 6999#(<= main_x 40), 7000#(<= main_x 41), 7001#(<= main_x 42), 7002#(<= main_x 43), 7003#(<= main_x 44), 7004#(<= main_x 45), 7005#(<= main_x 46), 7006#(<= main_x 47), 7007#(<= main_x 48)] [2018-07-23 13:54:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,859 INFO L450 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-07-23 13:54:53,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-07-23 13:54:53,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:54:53,860 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 51 states. [2018-07-23 13:54:53,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:53,886 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-07-23 13:54:53,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-07-23 13:54:53,886 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 51 [2018-07-23 13:54:53,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:53,887 INFO L225 Difference]: With dead ends: 55 [2018-07-23 13:54:53,887 INFO L226 Difference]: Without dead ends: 53 [2018-07-23 13:54:53,888 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:54:53,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-07-23 13:54:53,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-07-23 13:54:53,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-23 13:54:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-07-23 13:54:53,892 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2018-07-23 13:54:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:53,892 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-07-23 13:54:53,893 INFO L472 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-07-23 13:54:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-07-23 13:54:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-23 13:54:53,894 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:53,894 INFO L357 BasicCegarLoop]: trace histogram [49, 1, 1, 1] [2018-07-23 13:54:53,894 INFO L414 AbstractCegarLoop]: === Iteration 50 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:53,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1250314874, now seen corresponding path program 49 times [2018-07-23 13:54:53,895 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,085 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:54,085 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:54:54,085 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,086 INFO L185 omatonBuilderFactory]: Interpolants [7224#true, 7225#false, 7226#(<= main_x 0), 7227#(<= main_x 1), 7228#(<= main_x 2), 7229#(<= main_x 3), 7230#(<= main_x 4), 7231#(<= main_x 5), 7232#(<= main_x 6), 7233#(<= main_x 7), 7234#(<= main_x 8), 7235#(<= main_x 9), 7236#(<= main_x 10), 7237#(<= main_x 11), 7238#(<= main_x 12), 7239#(<= main_x 13), 7240#(<= main_x 14), 7241#(<= main_x 15), 7242#(<= main_x 16), 7243#(<= main_x 17), 7244#(<= main_x 18), 7245#(<= main_x 19), 7246#(<= main_x 20), 7247#(<= main_x 21), 7248#(<= main_x 22), 7249#(<= main_x 23), 7250#(<= main_x 24), 7251#(<= main_x 25), 7252#(<= main_x 26), 7253#(<= main_x 27), 7254#(<= main_x 28), 7255#(<= main_x 29), 7256#(<= main_x 30), 7257#(<= main_x 31), 7258#(<= main_x 32), 7259#(<= main_x 33), 7260#(<= main_x 34), 7261#(<= main_x 35), 7262#(<= main_x 36), 7263#(<= main_x 37), 7264#(<= main_x 38), 7265#(<= main_x 39), 7266#(<= main_x 40), 7267#(<= main_x 41), 7268#(<= main_x 42), 7269#(<= main_x 43), 7270#(<= main_x 44), 7271#(<= main_x 45), 7272#(<= main_x 46), 7273#(<= main_x 47), 7274#(<= main_x 48), 7275#(<= main_x 49)] [2018-07-23 13:54:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,087 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:54:54,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:54:54,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:54:54,088 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 52 states. [2018-07-23 13:54:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:54,118 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-07-23 13:54:54,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:54:54,118 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 52 [2018-07-23 13:54:54,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:54,119 INFO L225 Difference]: With dead ends: 56 [2018-07-23 13:54:54,119 INFO L226 Difference]: Without dead ends: 54 [2018-07-23 13:54:54,120 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:54:54,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-07-23 13:54:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-07-23 13:54:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 13:54:54,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-07-23 13:54:54,125 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2018-07-23 13:54:54,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:54,125 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-07-23 13:54:54,125 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:54:54,125 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-07-23 13:54:54,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 13:54:54,126 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:54,126 INFO L357 BasicCegarLoop]: trace histogram [50, 1, 1, 1] [2018-07-23 13:54:54,126 INFO L414 AbstractCegarLoop]: === Iteration 51 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash -105059296, now seen corresponding path program 50 times [2018-07-23 13:54:54,126 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,323 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:54,324 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-07-23 13:54:54,324 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,324 INFO L185 omatonBuilderFactory]: Interpolants [7496#true, 7497#false, 7498#(<= main_x 0), 7499#(<= main_x 1), 7500#(<= main_x 2), 7501#(<= main_x 3), 7502#(<= main_x 4), 7503#(<= main_x 5), 7504#(<= main_x 6), 7505#(<= main_x 7), 7506#(<= main_x 8), 7507#(<= main_x 9), 7508#(<= main_x 10), 7509#(<= main_x 11), 7510#(<= main_x 12), 7511#(<= main_x 13), 7512#(<= main_x 14), 7513#(<= main_x 15), 7514#(<= main_x 16), 7515#(<= main_x 17), 7516#(<= main_x 18), 7517#(<= main_x 19), 7518#(<= main_x 20), 7519#(<= main_x 21), 7520#(<= main_x 22), 7521#(<= main_x 23), 7522#(<= main_x 24), 7523#(<= main_x 25), 7524#(<= main_x 26), 7525#(<= main_x 27), 7526#(<= main_x 28), 7527#(<= main_x 29), 7528#(<= main_x 30), 7529#(<= main_x 31), 7530#(<= main_x 32), 7531#(<= main_x 33), 7532#(<= main_x 34), 7533#(<= main_x 35), 7534#(<= main_x 36), 7535#(<= main_x 37), 7536#(<= main_x 38), 7537#(<= main_x 39), 7538#(<= main_x 40), 7539#(<= main_x 41), 7540#(<= main_x 42), 7541#(<= main_x 43), 7542#(<= main_x 44), 7543#(<= main_x 45), 7544#(<= main_x 46), 7545#(<= main_x 47), 7546#(<= main_x 48), 7547#(<= main_x 49), 7548#(<= main_x 50)] [2018-07-23 13:54:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,325 INFO L450 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-07-23 13:54:54,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-07-23 13:54:54,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:54:54,327 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 53 states. [2018-07-23 13:54:54,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:54,358 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-07-23 13:54:54,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-07-23 13:54:54,358 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 53 [2018-07-23 13:54:54,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:54,359 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:54:54,359 INFO L226 Difference]: Without dead ends: 55 [2018-07-23 13:54:54,360 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:54:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-07-23 13:54:54,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-07-23 13:54:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-07-23 13:54:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2018-07-23 13:54:54,366 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2018-07-23 13:54:54,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:54,366 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2018-07-23 13:54:54,366 INFO L472 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-07-23 13:54:54,367 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-07-23 13:54:54,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-23 13:54:54,367 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:54,367 INFO L357 BasicCegarLoop]: trace histogram [51, 1, 1, 1] [2018-07-23 13:54:54,367 INFO L414 AbstractCegarLoop]: === Iteration 52 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:54,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1038125254, now seen corresponding path program 51 times [2018-07-23 13:54:54,368 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,556 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:54,556 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:54:54,556 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,559 INFO L185 omatonBuilderFactory]: Interpolants [7808#(<= main_x 33), 7809#(<= main_x 34), 7810#(<= main_x 35), 7811#(<= main_x 36), 7812#(<= main_x 37), 7813#(<= main_x 38), 7814#(<= main_x 39), 7815#(<= main_x 40), 7816#(<= main_x 41), 7817#(<= main_x 42), 7818#(<= main_x 43), 7819#(<= main_x 44), 7820#(<= main_x 45), 7821#(<= main_x 46), 7822#(<= main_x 47), 7823#(<= main_x 48), 7824#(<= main_x 49), 7825#(<= main_x 50), 7826#(<= main_x 51), 7773#true, 7774#false, 7775#(<= main_x 0), 7776#(<= main_x 1), 7777#(<= main_x 2), 7778#(<= main_x 3), 7779#(<= main_x 4), 7780#(<= main_x 5), 7781#(<= main_x 6), 7782#(<= main_x 7), 7783#(<= main_x 8), 7784#(<= main_x 9), 7785#(<= main_x 10), 7786#(<= main_x 11), 7787#(<= main_x 12), 7788#(<= main_x 13), 7789#(<= main_x 14), 7790#(<= main_x 15), 7791#(<= main_x 16), 7792#(<= main_x 17), 7793#(<= main_x 18), 7794#(<= main_x 19), 7795#(<= main_x 20), 7796#(<= main_x 21), 7797#(<= main_x 22), 7798#(<= main_x 23), 7799#(<= main_x 24), 7800#(<= main_x 25), 7801#(<= main_x 26), 7802#(<= main_x 27), 7803#(<= main_x 28), 7804#(<= main_x 29), 7805#(<= main_x 30), 7806#(<= main_x 31), 7807#(<= main_x 32)] [2018-07-23 13:54:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,560 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:54:54,561 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:54:54,561 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:54:54,562 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 54 states. [2018-07-23 13:54:54,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:54,582 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-07-23 13:54:54,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:54:54,583 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 54 [2018-07-23 13:54:54,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:54,584 INFO L225 Difference]: With dead ends: 58 [2018-07-23 13:54:54,584 INFO L226 Difference]: Without dead ends: 56 [2018-07-23 13:54:54,585 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:54:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-07-23 13:54:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-07-23 13:54:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-23 13:54:54,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-07-23 13:54:54,588 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2018-07-23 13:54:54,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:54,588 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-07-23 13:54:54,588 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:54:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-07-23 13:54:54,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-23 13:54:54,589 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:54,589 INFO L357 BasicCegarLoop]: trace histogram [52, 1, 1, 1] [2018-07-23 13:54:54,589 INFO L414 AbstractCegarLoop]: === Iteration 53 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:54,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2117107936, now seen corresponding path program 52 times [2018-07-23 13:54:54,589 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,785 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:54,785 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-07-23 13:54:54,785 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,786 INFO L185 omatonBuilderFactory]: Interpolants [8064#(<= main_x 7), 8065#(<= main_x 8), 8066#(<= main_x 9), 8067#(<= main_x 10), 8068#(<= main_x 11), 8069#(<= main_x 12), 8070#(<= main_x 13), 8071#(<= main_x 14), 8072#(<= main_x 15), 8073#(<= main_x 16), 8074#(<= main_x 17), 8075#(<= main_x 18), 8076#(<= main_x 19), 8077#(<= main_x 20), 8078#(<= main_x 21), 8079#(<= main_x 22), 8080#(<= main_x 23), 8081#(<= main_x 24), 8082#(<= main_x 25), 8083#(<= main_x 26), 8084#(<= main_x 27), 8085#(<= main_x 28), 8086#(<= main_x 29), 8087#(<= main_x 30), 8088#(<= main_x 31), 8089#(<= main_x 32), 8090#(<= main_x 33), 8091#(<= main_x 34), 8092#(<= main_x 35), 8093#(<= main_x 36), 8094#(<= main_x 37), 8095#(<= main_x 38), 8096#(<= main_x 39), 8097#(<= main_x 40), 8098#(<= main_x 41), 8099#(<= main_x 42), 8100#(<= main_x 43), 8101#(<= main_x 44), 8102#(<= main_x 45), 8103#(<= main_x 46), 8104#(<= main_x 47), 8105#(<= main_x 48), 8106#(<= main_x 49), 8107#(<= main_x 50), 8108#(<= main_x 51), 8109#(<= main_x 52), 8055#true, 8056#false, 8057#(<= main_x 0), 8058#(<= main_x 1), 8059#(<= main_x 2), 8060#(<= main_x 3), 8061#(<= main_x 4), 8062#(<= main_x 5), 8063#(<= main_x 6)] [2018-07-23 13:54:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,787 INFO L450 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-07-23 13:54:54,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-07-23 13:54:54,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:54:54,788 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 55 states. [2018-07-23 13:54:54,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:54,820 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-07-23 13:54:54,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-23 13:54:54,820 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 55 [2018-07-23 13:54:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:54,821 INFO L225 Difference]: With dead ends: 59 [2018-07-23 13:54:54,821 INFO L226 Difference]: Without dead ends: 57 [2018-07-23 13:54:54,822 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:54:54,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-07-23 13:54:54,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-07-23 13:54:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 13:54:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2018-07-23 13:54:54,825 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2018-07-23 13:54:54,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:54,825 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2018-07-23 13:54:54,825 INFO L472 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-07-23 13:54:54,825 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-07-23 13:54:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-23 13:54:54,826 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:54,826 INFO L357 BasicCegarLoop]: trace histogram [53, 1, 1, 1] [2018-07-23 13:54:54,826 INFO L414 AbstractCegarLoop]: === Iteration 54 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:54,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1205832710, now seen corresponding path program 53 times [2018-07-23 13:54:54,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,013 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:55,013 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:54:55,014 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,014 INFO L185 omatonBuilderFactory]: Interpolants [8342#true, 8343#false, 8344#(<= main_x 0), 8345#(<= main_x 1), 8346#(<= main_x 2), 8347#(<= main_x 3), 8348#(<= main_x 4), 8349#(<= main_x 5), 8350#(<= main_x 6), 8351#(<= main_x 7), 8352#(<= main_x 8), 8353#(<= main_x 9), 8354#(<= main_x 10), 8355#(<= main_x 11), 8356#(<= main_x 12), 8357#(<= main_x 13), 8358#(<= main_x 14), 8359#(<= main_x 15), 8360#(<= main_x 16), 8361#(<= main_x 17), 8362#(<= main_x 18), 8363#(<= main_x 19), 8364#(<= main_x 20), 8365#(<= main_x 21), 8366#(<= main_x 22), 8367#(<= main_x 23), 8368#(<= main_x 24), 8369#(<= main_x 25), 8370#(<= main_x 26), 8371#(<= main_x 27), 8372#(<= main_x 28), 8373#(<= main_x 29), 8374#(<= main_x 30), 8375#(<= main_x 31), 8376#(<= main_x 32), 8377#(<= main_x 33), 8378#(<= main_x 34), 8379#(<= main_x 35), 8380#(<= main_x 36), 8381#(<= main_x 37), 8382#(<= main_x 38), 8383#(<= main_x 39), 8384#(<= main_x 40), 8385#(<= main_x 41), 8386#(<= main_x 42), 8387#(<= main_x 43), 8388#(<= main_x 44), 8389#(<= main_x 45), 8390#(<= main_x 46), 8391#(<= main_x 47), 8392#(<= main_x 48), 8393#(<= main_x 49), 8394#(<= main_x 50), 8395#(<= main_x 51), 8396#(<= main_x 52), 8397#(<= main_x 53)] [2018-07-23 13:54:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,015 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:54:55,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:54:55,017 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:54:55,017 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 56 states. [2018-07-23 13:54:55,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:55,050 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-07-23 13:54:55,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:54:55,050 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 56 [2018-07-23 13:54:55,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:55,051 INFO L225 Difference]: With dead ends: 60 [2018-07-23 13:54:55,051 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:54:55,053 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:54:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:54:55,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-07-23 13:54:55,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-07-23 13:54:55,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-07-23 13:54:55,055 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2018-07-23 13:54:55,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:55,056 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-07-23 13:54:55,056 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:54:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-07-23 13:54:55,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-23 13:54:55,057 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:55,057 INFO L357 BasicCegarLoop]: trace histogram [54, 1, 1, 1] [2018-07-23 13:54:55,057 INFO L414 AbstractCegarLoop]: === Iteration 55 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:55,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1273895520, now seen corresponding path program 54 times [2018-07-23 13:54:55,057 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,256 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:55,256 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-07-23 13:54:55,257 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,257 INFO L185 omatonBuilderFactory]: Interpolants [8634#true, 8635#false, 8636#(<= main_x 0), 8637#(<= main_x 1), 8638#(<= main_x 2), 8639#(<= main_x 3), 8640#(<= main_x 4), 8641#(<= main_x 5), 8642#(<= main_x 6), 8643#(<= main_x 7), 8644#(<= main_x 8), 8645#(<= main_x 9), 8646#(<= main_x 10), 8647#(<= main_x 11), 8648#(<= main_x 12), 8649#(<= main_x 13), 8650#(<= main_x 14), 8651#(<= main_x 15), 8652#(<= main_x 16), 8653#(<= main_x 17), 8654#(<= main_x 18), 8655#(<= main_x 19), 8656#(<= main_x 20), 8657#(<= main_x 21), 8658#(<= main_x 22), 8659#(<= main_x 23), 8660#(<= main_x 24), 8661#(<= main_x 25), 8662#(<= main_x 26), 8663#(<= main_x 27), 8664#(<= main_x 28), 8665#(<= main_x 29), 8666#(<= main_x 30), 8667#(<= main_x 31), 8668#(<= main_x 32), 8669#(<= main_x 33), 8670#(<= main_x 34), 8671#(<= main_x 35), 8672#(<= main_x 36), 8673#(<= main_x 37), 8674#(<= main_x 38), 8675#(<= main_x 39), 8676#(<= main_x 40), 8677#(<= main_x 41), 8678#(<= main_x 42), 8679#(<= main_x 43), 8680#(<= main_x 44), 8681#(<= main_x 45), 8682#(<= main_x 46), 8683#(<= main_x 47), 8684#(<= main_x 48), 8685#(<= main_x 49), 8686#(<= main_x 50), 8687#(<= main_x 51), 8688#(<= main_x 52), 8689#(<= main_x 53), 8690#(<= main_x 54)] [2018-07-23 13:54:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-07-23 13:54:55,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-07-23 13:54:55,260 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:54:55,260 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 57 states. [2018-07-23 13:54:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:55,298 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-07-23 13:54:55,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-07-23 13:54:55,299 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 57 [2018-07-23 13:54:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:55,299 INFO L225 Difference]: With dead ends: 61 [2018-07-23 13:54:55,299 INFO L226 Difference]: Without dead ends: 59 [2018-07-23 13:54:55,301 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:54:55,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-07-23 13:54:55,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-07-23 13:54:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-07-23 13:54:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2018-07-23 13:54:55,304 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2018-07-23 13:54:55,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:55,304 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2018-07-23 13:54:55,305 INFO L472 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-07-23 13:54:55,305 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-07-23 13:54:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-23 13:54:55,305 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:55,306 INFO L357 BasicCegarLoop]: trace histogram [55, 1, 1, 1] [2018-07-23 13:54:55,306 INFO L414 AbstractCegarLoop]: === Iteration 56 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:55,306 INFO L82 PathProgramCache]: Analyzing trace with hash -836059322, now seen corresponding path program 55 times [2018-07-23 13:54:55,306 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,557 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:55,558 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:54:55,558 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,559 INFO L185 omatonBuilderFactory]: Interpolants [8960#(<= main_x 27), 8961#(<= main_x 28), 8962#(<= main_x 29), 8963#(<= main_x 30), 8964#(<= main_x 31), 8965#(<= main_x 32), 8966#(<= main_x 33), 8967#(<= main_x 34), 8968#(<= main_x 35), 8969#(<= main_x 36), 8970#(<= main_x 37), 8971#(<= main_x 38), 8972#(<= main_x 39), 8973#(<= main_x 40), 8974#(<= main_x 41), 8975#(<= main_x 42), 8976#(<= main_x 43), 8977#(<= main_x 44), 8978#(<= main_x 45), 8979#(<= main_x 46), 8980#(<= main_x 47), 8981#(<= main_x 48), 8982#(<= main_x 49), 8983#(<= main_x 50), 8984#(<= main_x 51), 8985#(<= main_x 52), 8986#(<= main_x 53), 8987#(<= main_x 54), 8988#(<= main_x 55), 8931#true, 8932#false, 8933#(<= main_x 0), 8934#(<= main_x 1), 8935#(<= main_x 2), 8936#(<= main_x 3), 8937#(<= main_x 4), 8938#(<= main_x 5), 8939#(<= main_x 6), 8940#(<= main_x 7), 8941#(<= main_x 8), 8942#(<= main_x 9), 8943#(<= main_x 10), 8944#(<= main_x 11), 8945#(<= main_x 12), 8946#(<= main_x 13), 8947#(<= main_x 14), 8948#(<= main_x 15), 8949#(<= main_x 16), 8950#(<= main_x 17), 8951#(<= main_x 18), 8952#(<= main_x 19), 8953#(<= main_x 20), 8954#(<= main_x 21), 8955#(<= main_x 22), 8956#(<= main_x 23), 8957#(<= main_x 24), 8958#(<= main_x 25), 8959#(<= main_x 26)] [2018-07-23 13:54:55,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,559 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:54:55,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:54:55,561 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:54:55,562 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 58 states. [2018-07-23 13:54:55,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:55,594 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-07-23 13:54:55,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:54:55,594 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 58 [2018-07-23 13:54:55,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:55,595 INFO L225 Difference]: With dead ends: 62 [2018-07-23 13:54:55,595 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 13:54:55,597 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:54:55,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 13:54:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 13:54:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 13:54:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-07-23 13:54:55,601 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2018-07-23 13:54:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:55,602 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-07-23 13:54:55,602 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:54:55,602 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-07-23 13:54:55,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 13:54:55,603 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:55,603 INFO L357 BasicCegarLoop]: trace histogram [56, 1, 1, 1] [2018-07-23 13:54:55,603 INFO L414 AbstractCegarLoop]: === Iteration 57 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:55,604 INFO L82 PathProgramCache]: Analyzing trace with hash -148039072, now seen corresponding path program 56 times [2018-07-23 13:54:55,604 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,850 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:55,850 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-07-23 13:54:55,850 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,851 INFO L185 omatonBuilderFactory]: Interpolants [9233#true, 9234#false, 9235#(<= main_x 0), 9236#(<= main_x 1), 9237#(<= main_x 2), 9238#(<= main_x 3), 9239#(<= main_x 4), 9240#(<= main_x 5), 9241#(<= main_x 6), 9242#(<= main_x 7), 9243#(<= main_x 8), 9244#(<= main_x 9), 9245#(<= main_x 10), 9246#(<= main_x 11), 9247#(<= main_x 12), 9248#(<= main_x 13), 9249#(<= main_x 14), 9250#(<= main_x 15), 9251#(<= main_x 16), 9252#(<= main_x 17), 9253#(<= main_x 18), 9254#(<= main_x 19), 9255#(<= main_x 20), 9256#(<= main_x 21), 9257#(<= main_x 22), 9258#(<= main_x 23), 9259#(<= main_x 24), 9260#(<= main_x 25), 9261#(<= main_x 26), 9262#(<= main_x 27), 9263#(<= main_x 28), 9264#(<= main_x 29), 9265#(<= main_x 30), 9266#(<= main_x 31), 9267#(<= main_x 32), 9268#(<= main_x 33), 9269#(<= main_x 34), 9270#(<= main_x 35), 9271#(<= main_x 36), 9272#(<= main_x 37), 9273#(<= main_x 38), 9274#(<= main_x 39), 9275#(<= main_x 40), 9276#(<= main_x 41), 9277#(<= main_x 42), 9278#(<= main_x 43), 9279#(<= main_x 44), 9280#(<= main_x 45), 9281#(<= main_x 46), 9282#(<= main_x 47), 9283#(<= main_x 48), 9284#(<= main_x 49), 9285#(<= main_x 50), 9286#(<= main_x 51), 9287#(<= main_x 52), 9288#(<= main_x 53), 9289#(<= main_x 54), 9290#(<= main_x 55), 9291#(<= main_x 56)] [2018-07-23 13:54:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,852 INFO L450 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-07-23 13:54:55,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-07-23 13:54:55,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:54:55,854 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 59 states. [2018-07-23 13:54:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:55,892 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-07-23 13:54:55,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-07-23 13:54:55,893 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 59 [2018-07-23 13:54:55,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:55,893 INFO L225 Difference]: With dead ends: 63 [2018-07-23 13:54:55,894 INFO L226 Difference]: Without dead ends: 61 [2018-07-23 13:54:55,895 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:54:55,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-07-23 13:54:55,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-07-23 13:54:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-23 13:54:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-07-23 13:54:55,898 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2018-07-23 13:54:55,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:55,898 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-07-23 13:54:55,898 INFO L472 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-07-23 13:54:55,898 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-07-23 13:54:55,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-23 13:54:55,899 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:55,899 INFO L357 BasicCegarLoop]: trace histogram [57, 1, 1, 1] [2018-07-23 13:54:55,899 INFO L414 AbstractCegarLoop]: === Iteration 58 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:55,899 INFO L82 PathProgramCache]: Analyzing trace with hash -294247802, now seen corresponding path program 57 times [2018-07-23 13:54:55,899 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,094 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:56,094 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:54:56,094 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,095 INFO L185 omatonBuilderFactory]: Interpolants [9540#true, 9541#false, 9542#(<= main_x 0), 9543#(<= main_x 1), 9544#(<= main_x 2), 9545#(<= main_x 3), 9546#(<= main_x 4), 9547#(<= main_x 5), 9548#(<= main_x 6), 9549#(<= main_x 7), 9550#(<= main_x 8), 9551#(<= main_x 9), 9552#(<= main_x 10), 9553#(<= main_x 11), 9554#(<= main_x 12), 9555#(<= main_x 13), 9556#(<= main_x 14), 9557#(<= main_x 15), 9558#(<= main_x 16), 9559#(<= main_x 17), 9560#(<= main_x 18), 9561#(<= main_x 19), 9562#(<= main_x 20), 9563#(<= main_x 21), 9564#(<= main_x 22), 9565#(<= main_x 23), 9566#(<= main_x 24), 9567#(<= main_x 25), 9568#(<= main_x 26), 9569#(<= main_x 27), 9570#(<= main_x 28), 9571#(<= main_x 29), 9572#(<= main_x 30), 9573#(<= main_x 31), 9574#(<= main_x 32), 9575#(<= main_x 33), 9576#(<= main_x 34), 9577#(<= main_x 35), 9578#(<= main_x 36), 9579#(<= main_x 37), 9580#(<= main_x 38), 9581#(<= main_x 39), 9582#(<= main_x 40), 9583#(<= main_x 41), 9584#(<= main_x 42), 9585#(<= main_x 43), 9586#(<= main_x 44), 9587#(<= main_x 45), 9588#(<= main_x 46), 9589#(<= main_x 47), 9590#(<= main_x 48), 9591#(<= main_x 49), 9592#(<= main_x 50), 9593#(<= main_x 51), 9594#(<= main_x 52), 9595#(<= main_x 53), 9596#(<= main_x 54), 9597#(<= main_x 55), 9598#(<= main_x 56), 9599#(<= main_x 57)] [2018-07-23 13:54:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,095 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:54:56,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:54:56,097 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:54:56,097 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 60 states. [2018-07-23 13:54:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:56,137 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-07-23 13:54:56,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:54:56,137 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 60 [2018-07-23 13:54:56,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:56,138 INFO L225 Difference]: With dead ends: 64 [2018-07-23 13:54:56,138 INFO L226 Difference]: Without dead ends: 62 [2018-07-23 13:54:56,139 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:54:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-07-23 13:54:56,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-07-23 13:54:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-07-23 13:54:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-07-23 13:54:56,142 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2018-07-23 13:54:56,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:56,142 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-07-23 13:54:56,142 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:54:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-07-23 13:54:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 13:54:56,143 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:56,143 INFO L357 BasicCegarLoop]: trace histogram [58, 1, 1, 1] [2018-07-23 13:54:56,143 INFO L414 AbstractCegarLoop]: === Iteration 59 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:56,144 INFO L82 PathProgramCache]: Analyzing trace with hash -531751136, now seen corresponding path program 58 times [2018-07-23 13:54:56,144 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,360 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:56,360 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-07-23 13:54:56,361 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,361 INFO L185 omatonBuilderFactory]: Interpolants [9856#(<= main_x 2), 9857#(<= main_x 3), 9858#(<= main_x 4), 9859#(<= main_x 5), 9860#(<= main_x 6), 9861#(<= main_x 7), 9862#(<= main_x 8), 9863#(<= main_x 9), 9864#(<= main_x 10), 9865#(<= main_x 11), 9866#(<= main_x 12), 9867#(<= main_x 13), 9868#(<= main_x 14), 9869#(<= main_x 15), 9870#(<= main_x 16), 9871#(<= main_x 17), 9872#(<= main_x 18), 9873#(<= main_x 19), 9874#(<= main_x 20), 9875#(<= main_x 21), 9876#(<= main_x 22), 9877#(<= main_x 23), 9878#(<= main_x 24), 9879#(<= main_x 25), 9880#(<= main_x 26), 9881#(<= main_x 27), 9882#(<= main_x 28), 9883#(<= main_x 29), 9884#(<= main_x 30), 9885#(<= main_x 31), 9886#(<= main_x 32), 9887#(<= main_x 33), 9888#(<= main_x 34), 9889#(<= main_x 35), 9890#(<= main_x 36), 9891#(<= main_x 37), 9892#(<= main_x 38), 9893#(<= main_x 39), 9894#(<= main_x 40), 9895#(<= main_x 41), 9896#(<= main_x 42), 9897#(<= main_x 43), 9898#(<= main_x 44), 9899#(<= main_x 45), 9900#(<= main_x 46), 9901#(<= main_x 47), 9902#(<= main_x 48), 9903#(<= main_x 49), 9904#(<= main_x 50), 9905#(<= main_x 51), 9906#(<= main_x 52), 9907#(<= main_x 53), 9908#(<= main_x 54), 9909#(<= main_x 55), 9910#(<= main_x 56), 9911#(<= main_x 57), 9912#(<= main_x 58), 9852#true, 9853#false, 9854#(<= main_x 0), 9855#(<= main_x 1)] [2018-07-23 13:54:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,362 INFO L450 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-07-23 13:54:56,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-07-23 13:54:56,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:54:56,364 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 61 states. [2018-07-23 13:54:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:56,407 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-07-23 13:54:56,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-07-23 13:54:56,407 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 61 [2018-07-23 13:54:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:56,408 INFO L225 Difference]: With dead ends: 65 [2018-07-23 13:54:56,408 INFO L226 Difference]: Without dead ends: 63 [2018-07-23 13:54:56,409 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:54:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-23 13:54:56,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-07-23 13:54:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-23 13:54:56,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-07-23 13:54:56,412 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2018-07-23 13:54:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:56,412 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-07-23 13:54:56,413 INFO L472 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-07-23 13:54:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-07-23 13:54:56,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-23 13:54:56,413 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:56,413 INFO L357 BasicCegarLoop]: trace histogram [59, 1, 1, 1] [2018-07-23 13:54:56,414 INFO L414 AbstractCegarLoop]: === Iteration 60 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:56,414 INFO L82 PathProgramCache]: Analyzing trace with hash 695580102, now seen corresponding path program 59 times [2018-07-23 13:54:56,414 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:56,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,638 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:56,638 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:54:56,638 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,639 INFO L185 omatonBuilderFactory]: Interpolants [10169#true, 10170#false, 10171#(<= main_x 0), 10172#(<= main_x 1), 10173#(<= main_x 2), 10174#(<= main_x 3), 10175#(<= main_x 4), 10176#(<= main_x 5), 10177#(<= main_x 6), 10178#(<= main_x 7), 10179#(<= main_x 8), 10180#(<= main_x 9), 10181#(<= main_x 10), 10182#(<= main_x 11), 10183#(<= main_x 12), 10184#(<= main_x 13), 10185#(<= main_x 14), 10186#(<= main_x 15), 10187#(<= main_x 16), 10188#(<= main_x 17), 10189#(<= main_x 18), 10190#(<= main_x 19), 10191#(<= main_x 20), 10192#(<= main_x 21), 10193#(<= main_x 22), 10194#(<= main_x 23), 10195#(<= main_x 24), 10196#(<= main_x 25), 10197#(<= main_x 26), 10198#(<= main_x 27), 10199#(<= main_x 28), 10200#(<= main_x 29), 10201#(<= main_x 30), 10202#(<= main_x 31), 10203#(<= main_x 32), 10204#(<= main_x 33), 10205#(<= main_x 34), 10206#(<= main_x 35), 10207#(<= main_x 36), 10208#(<= main_x 37), 10209#(<= main_x 38), 10210#(<= main_x 39), 10211#(<= main_x 40), 10212#(<= main_x 41), 10213#(<= main_x 42), 10214#(<= main_x 43), 10215#(<= main_x 44), 10216#(<= main_x 45), 10217#(<= main_x 46), 10218#(<= main_x 47), 10219#(<= main_x 48), 10220#(<= main_x 49), 10221#(<= main_x 50), 10222#(<= main_x 51), 10223#(<= main_x 52), 10224#(<= main_x 53), 10225#(<= main_x 54), 10226#(<= main_x 55), 10227#(<= main_x 56), 10228#(<= main_x 57), 10229#(<= main_x 58), 10230#(<= main_x 59)] [2018-07-23 13:54:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,639 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:54:56,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:54:56,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:54:56,641 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 62 states. [2018-07-23 13:54:56,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:56,685 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-07-23 13:54:56,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:54:56,685 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 62 [2018-07-23 13:54:56,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:56,686 INFO L225 Difference]: With dead ends: 66 [2018-07-23 13:54:56,686 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:54:56,687 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:54:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:54:56,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-07-23 13:54:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 13:54:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-07-23 13:54:56,690 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2018-07-23 13:54:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:56,691 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-07-23 13:54:56,691 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:54:56,691 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-07-23 13:54:56,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 13:54:56,692 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:56,692 INFO L357 BasicCegarLoop]: trace histogram [60, 1, 1, 1] [2018-07-23 13:54:56,692 INFO L414 AbstractCegarLoop]: === Iteration 61 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:56,692 INFO L82 PathProgramCache]: Analyzing trace with hash 88142816, now seen corresponding path program 60 times [2018-07-23 13:54:56,692 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,924 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:56,924 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-07-23 13:54:56,924 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:56,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,925 INFO L185 omatonBuilderFactory]: Interpolants [10496#(<= main_x 3), 10497#(<= main_x 4), 10498#(<= main_x 5), 10499#(<= main_x 6), 10500#(<= main_x 7), 10501#(<= main_x 8), 10502#(<= main_x 9), 10503#(<= main_x 10), 10504#(<= main_x 11), 10505#(<= main_x 12), 10506#(<= main_x 13), 10507#(<= main_x 14), 10508#(<= main_x 15), 10509#(<= main_x 16), 10510#(<= main_x 17), 10511#(<= main_x 18), 10512#(<= main_x 19), 10513#(<= main_x 20), 10514#(<= main_x 21), 10515#(<= main_x 22), 10516#(<= main_x 23), 10517#(<= main_x 24), 10518#(<= main_x 25), 10519#(<= main_x 26), 10520#(<= main_x 27), 10521#(<= main_x 28), 10522#(<= main_x 29), 10523#(<= main_x 30), 10524#(<= main_x 31), 10525#(<= main_x 32), 10526#(<= main_x 33), 10527#(<= main_x 34), 10528#(<= main_x 35), 10529#(<= main_x 36), 10530#(<= main_x 37), 10531#(<= main_x 38), 10532#(<= main_x 39), 10533#(<= main_x 40), 10534#(<= main_x 41), 10535#(<= main_x 42), 10536#(<= main_x 43), 10537#(<= main_x 44), 10538#(<= main_x 45), 10539#(<= main_x 46), 10540#(<= main_x 47), 10541#(<= main_x 48), 10542#(<= main_x 49), 10543#(<= main_x 50), 10544#(<= main_x 51), 10545#(<= main_x 52), 10546#(<= main_x 53), 10547#(<= main_x 54), 10548#(<= main_x 55), 10549#(<= main_x 56), 10550#(<= main_x 57), 10551#(<= main_x 58), 10552#(<= main_x 59), 10553#(<= main_x 60), 10491#true, 10492#false, 10493#(<= main_x 0), 10494#(<= main_x 1), 10495#(<= main_x 2)] [2018-07-23 13:54:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,925 INFO L450 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-07-23 13:54:56,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-07-23 13:54:56,927 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:54:56,927 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 63 states. [2018-07-23 13:54:56,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:56,970 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-07-23 13:54:56,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-07-23 13:54:56,971 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 63 [2018-07-23 13:54:56,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:56,972 INFO L225 Difference]: With dead ends: 67 [2018-07-23 13:54:56,972 INFO L226 Difference]: Without dead ends: 65 [2018-07-23 13:54:56,975 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:54:56,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-07-23 13:54:56,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-07-23 13:54:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-07-23 13:54:56,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2018-07-23 13:54:56,979 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2018-07-23 13:54:56,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:56,979 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2018-07-23 13:54:56,979 INFO L472 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-07-23 13:54:56,979 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-07-23 13:54:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-23 13:54:56,980 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:56,980 INFO L357 BasicCegarLoop]: trace histogram [61, 1, 1, 1] [2018-07-23 13:54:56,980 INFO L414 AbstractCegarLoop]: === Iteration 62 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:56,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1562543866, now seen corresponding path program 61 times [2018-07-23 13:54:56,981 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:57,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,210 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:57,210 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:54:57,211 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,211 INFO L185 omatonBuilderFactory]: Interpolants [10880#(<= main_x 60), 10881#(<= main_x 61), 10818#true, 10819#false, 10820#(<= main_x 0), 10821#(<= main_x 1), 10822#(<= main_x 2), 10823#(<= main_x 3), 10824#(<= main_x 4), 10825#(<= main_x 5), 10826#(<= main_x 6), 10827#(<= main_x 7), 10828#(<= main_x 8), 10829#(<= main_x 9), 10830#(<= main_x 10), 10831#(<= main_x 11), 10832#(<= main_x 12), 10833#(<= main_x 13), 10834#(<= main_x 14), 10835#(<= main_x 15), 10836#(<= main_x 16), 10837#(<= main_x 17), 10838#(<= main_x 18), 10839#(<= main_x 19), 10840#(<= main_x 20), 10841#(<= main_x 21), 10842#(<= main_x 22), 10843#(<= main_x 23), 10844#(<= main_x 24), 10845#(<= main_x 25), 10846#(<= main_x 26), 10847#(<= main_x 27), 10848#(<= main_x 28), 10849#(<= main_x 29), 10850#(<= main_x 30), 10851#(<= main_x 31), 10852#(<= main_x 32), 10853#(<= main_x 33), 10854#(<= main_x 34), 10855#(<= main_x 35), 10856#(<= main_x 36), 10857#(<= main_x 37), 10858#(<= main_x 38), 10859#(<= main_x 39), 10860#(<= main_x 40), 10861#(<= main_x 41), 10862#(<= main_x 42), 10863#(<= main_x 43), 10864#(<= main_x 44), 10865#(<= main_x 45), 10866#(<= main_x 46), 10867#(<= main_x 47), 10868#(<= main_x 48), 10869#(<= main_x 49), 10870#(<= main_x 50), 10871#(<= main_x 51), 10872#(<= main_x 52), 10873#(<= main_x 53), 10874#(<= main_x 54), 10875#(<= main_x 55), 10876#(<= main_x 56), 10877#(<= main_x 57), 10878#(<= main_x 58), 10879#(<= main_x 59)] [2018-07-23 13:54:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,212 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:54:57,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:54:57,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:54:57,214 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 64 states. [2018-07-23 13:54:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:57,249 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-07-23 13:54:57,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:54:57,250 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 64 [2018-07-23 13:54:57,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:57,250 INFO L225 Difference]: With dead ends: 68 [2018-07-23 13:54:57,251 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 13:54:57,252 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:54:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 13:54:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-07-23 13:54:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-23 13:54:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-07-23 13:54:57,256 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2018-07-23 13:54:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:57,257 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-07-23 13:54:57,257 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:54:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-07-23 13:54:57,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 13:54:57,258 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:57,258 INFO L357 BasicCegarLoop]: trace histogram [62, 1, 1, 1] [2018-07-23 13:54:57,258 INFO L414 AbstractCegarLoop]: === Iteration 63 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:57,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1194223456, now seen corresponding path program 62 times [2018-07-23 13:54:57,258 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,484 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:57,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-07-23 13:54:57,485 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,485 INFO L185 omatonBuilderFactory]: Interpolants [11150#true, 11151#false, 11152#(<= main_x 0), 11153#(<= main_x 1), 11154#(<= main_x 2), 11155#(<= main_x 3), 11156#(<= main_x 4), 11157#(<= main_x 5), 11158#(<= main_x 6), 11159#(<= main_x 7), 11160#(<= main_x 8), 11161#(<= main_x 9), 11162#(<= main_x 10), 11163#(<= main_x 11), 11164#(<= main_x 12), 11165#(<= main_x 13), 11166#(<= main_x 14), 11167#(<= main_x 15), 11168#(<= main_x 16), 11169#(<= main_x 17), 11170#(<= main_x 18), 11171#(<= main_x 19), 11172#(<= main_x 20), 11173#(<= main_x 21), 11174#(<= main_x 22), 11175#(<= main_x 23), 11176#(<= main_x 24), 11177#(<= main_x 25), 11178#(<= main_x 26), 11179#(<= main_x 27), 11180#(<= main_x 28), 11181#(<= main_x 29), 11182#(<= main_x 30), 11183#(<= main_x 31), 11184#(<= main_x 32), 11185#(<= main_x 33), 11186#(<= main_x 34), 11187#(<= main_x 35), 11188#(<= main_x 36), 11189#(<= main_x 37), 11190#(<= main_x 38), 11191#(<= main_x 39), 11192#(<= main_x 40), 11193#(<= main_x 41), 11194#(<= main_x 42), 11195#(<= main_x 43), 11196#(<= main_x 44), 11197#(<= main_x 45), 11198#(<= main_x 46), 11199#(<= main_x 47), 11200#(<= main_x 48), 11201#(<= main_x 49), 11202#(<= main_x 50), 11203#(<= main_x 51), 11204#(<= main_x 52), 11205#(<= main_x 53), 11206#(<= main_x 54), 11207#(<= main_x 55), 11208#(<= main_x 56), 11209#(<= main_x 57), 11210#(<= main_x 58), 11211#(<= main_x 59), 11212#(<= main_x 60), 11213#(<= main_x 61), 11214#(<= main_x 62)] [2018-07-23 13:54:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-07-23 13:54:57,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-07-23 13:54:57,490 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:54:57,490 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 65 states. [2018-07-23 13:54:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:57,534 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-07-23 13:54:57,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-07-23 13:54:57,534 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 65 [2018-07-23 13:54:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:57,535 INFO L225 Difference]: With dead ends: 69 [2018-07-23 13:54:57,535 INFO L226 Difference]: Without dead ends: 67 [2018-07-23 13:54:57,536 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:54:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-07-23 13:54:57,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-07-23 13:54:57,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-23 13:54:57,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2018-07-23 13:54:57,539 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2018-07-23 13:54:57,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:57,539 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2018-07-23 13:54:57,539 INFO L472 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-07-23 13:54:57,539 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-07-23 13:54:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-23 13:54:57,540 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:57,540 INFO L357 BasicCegarLoop]: trace histogram [63, 1, 1, 1] [2018-07-23 13:54:57,540 INFO L414 AbstractCegarLoop]: === Iteration 64 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:57,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1633774662, now seen corresponding path program 63 times [2018-07-23 13:54:57,541 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,759 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:57,759 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:54:57,759 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,760 INFO L185 omatonBuilderFactory]: Interpolants [11520#(<= main_x 31), 11521#(<= main_x 32), 11522#(<= main_x 33), 11523#(<= main_x 34), 11524#(<= main_x 35), 11525#(<= main_x 36), 11526#(<= main_x 37), 11527#(<= main_x 38), 11528#(<= main_x 39), 11529#(<= main_x 40), 11530#(<= main_x 41), 11531#(<= main_x 42), 11532#(<= main_x 43), 11533#(<= main_x 44), 11534#(<= main_x 45), 11535#(<= main_x 46), 11536#(<= main_x 47), 11537#(<= main_x 48), 11538#(<= main_x 49), 11539#(<= main_x 50), 11540#(<= main_x 51), 11541#(<= main_x 52), 11542#(<= main_x 53), 11543#(<= main_x 54), 11544#(<= main_x 55), 11545#(<= main_x 56), 11546#(<= main_x 57), 11547#(<= main_x 58), 11548#(<= main_x 59), 11549#(<= main_x 60), 11550#(<= main_x 61), 11551#(<= main_x 62), 11552#(<= main_x 63), 11487#true, 11488#false, 11489#(<= main_x 0), 11490#(<= main_x 1), 11491#(<= main_x 2), 11492#(<= main_x 3), 11493#(<= main_x 4), 11494#(<= main_x 5), 11495#(<= main_x 6), 11496#(<= main_x 7), 11497#(<= main_x 8), 11498#(<= main_x 9), 11499#(<= main_x 10), 11500#(<= main_x 11), 11501#(<= main_x 12), 11502#(<= main_x 13), 11503#(<= main_x 14), 11504#(<= main_x 15), 11505#(<= main_x 16), 11506#(<= main_x 17), 11507#(<= main_x 18), 11508#(<= main_x 19), 11509#(<= main_x 20), 11510#(<= main_x 21), 11511#(<= main_x 22), 11512#(<= main_x 23), 11513#(<= main_x 24), 11514#(<= main_x 25), 11515#(<= main_x 26), 11516#(<= main_x 27), 11517#(<= main_x 28), 11518#(<= main_x 29), 11519#(<= main_x 30)] [2018-07-23 13:54:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:57,760 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:54:57,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:54:57,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:54:57,762 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 66 states. [2018-07-23 13:54:57,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:57,795 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-07-23 13:54:57,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:54:57,795 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 66 [2018-07-23 13:54:57,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:57,796 INFO L225 Difference]: With dead ends: 70 [2018-07-23 13:54:57,796 INFO L226 Difference]: Without dead ends: 68 [2018-07-23 13:54:57,797 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:54:57,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-23 13:54:57,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-07-23 13:54:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 13:54:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-07-23 13:54:57,800 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 66 [2018-07-23 13:54:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:57,801 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-07-23 13:54:57,801 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:54:57,801 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-07-23 13:54:57,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-23 13:54:57,802 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:57,802 INFO L357 BasicCegarLoop]: trace histogram [64, 1, 1, 1] [2018-07-23 13:54:57,802 INFO L414 AbstractCegarLoop]: === Iteration 65 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:57,802 INFO L82 PathProgramCache]: Analyzing trace with hash -892596896, now seen corresponding path program 64 times [2018-07-23 13:54:57,803 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,072 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:58,072 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-07-23 13:54:58,072 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,073 INFO L185 omatonBuilderFactory]: Interpolants [11829#true, 11830#false, 11831#(<= main_x 0), 11832#(<= main_x 1), 11833#(<= main_x 2), 11834#(<= main_x 3), 11835#(<= main_x 4), 11836#(<= main_x 5), 11837#(<= main_x 6), 11838#(<= main_x 7), 11839#(<= main_x 8), 11840#(<= main_x 9), 11841#(<= main_x 10), 11842#(<= main_x 11), 11843#(<= main_x 12), 11844#(<= main_x 13), 11845#(<= main_x 14), 11846#(<= main_x 15), 11847#(<= main_x 16), 11848#(<= main_x 17), 11849#(<= main_x 18), 11850#(<= main_x 19), 11851#(<= main_x 20), 11852#(<= main_x 21), 11853#(<= main_x 22), 11854#(<= main_x 23), 11855#(<= main_x 24), 11856#(<= main_x 25), 11857#(<= main_x 26), 11858#(<= main_x 27), 11859#(<= main_x 28), 11860#(<= main_x 29), 11861#(<= main_x 30), 11862#(<= main_x 31), 11863#(<= main_x 32), 11864#(<= main_x 33), 11865#(<= main_x 34), 11866#(<= main_x 35), 11867#(<= main_x 36), 11868#(<= main_x 37), 11869#(<= main_x 38), 11870#(<= main_x 39), 11871#(<= main_x 40), 11872#(<= main_x 41), 11873#(<= main_x 42), 11874#(<= main_x 43), 11875#(<= main_x 44), 11876#(<= main_x 45), 11877#(<= main_x 46), 11878#(<= main_x 47), 11879#(<= main_x 48), 11880#(<= main_x 49), 11881#(<= main_x 50), 11882#(<= main_x 51), 11883#(<= main_x 52), 11884#(<= main_x 53), 11885#(<= main_x 54), 11886#(<= main_x 55), 11887#(<= main_x 56), 11888#(<= main_x 57), 11889#(<= main_x 58), 11890#(<= main_x 59), 11891#(<= main_x 60), 11892#(<= main_x 61), 11893#(<= main_x 62), 11894#(<= main_x 63), 11895#(<= main_x 64)] [2018-07-23 13:54:58,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,074 INFO L450 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-07-23 13:54:58,075 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-07-23 13:54:58,075 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:54:58,076 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 67 states. [2018-07-23 13:54:58,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:58,127 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-07-23 13:54:58,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-07-23 13:54:58,127 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 67 [2018-07-23 13:54:58,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:58,128 INFO L225 Difference]: With dead ends: 71 [2018-07-23 13:54:58,128 INFO L226 Difference]: Without dead ends: 69 [2018-07-23 13:54:58,129 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:54:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-07-23 13:54:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-07-23 13:54:58,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-23 13:54:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-07-23 13:54:58,133 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 67 [2018-07-23 13:54:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:58,133 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-07-23 13:54:58,133 INFO L472 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-07-23 13:54:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-07-23 13:54:58,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-23 13:54:58,134 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:58,135 INFO L357 BasicCegarLoop]: trace histogram [65, 1, 1, 1] [2018-07-23 13:54:58,135 INFO L414 AbstractCegarLoop]: === Iteration 66 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:58,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1900703866, now seen corresponding path program 65 times [2018-07-23 13:54:58,135 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,422 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:58,422 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:54:58,422 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,423 INFO L185 omatonBuilderFactory]: Interpolants [12176#true, 12177#false, 12178#(<= main_x 0), 12179#(<= main_x 1), 12180#(<= main_x 2), 12181#(<= main_x 3), 12182#(<= main_x 4), 12183#(<= main_x 5), 12184#(<= main_x 6), 12185#(<= main_x 7), 12186#(<= main_x 8), 12187#(<= main_x 9), 12188#(<= main_x 10), 12189#(<= main_x 11), 12190#(<= main_x 12), 12191#(<= main_x 13), 12192#(<= main_x 14), 12193#(<= main_x 15), 12194#(<= main_x 16), 12195#(<= main_x 17), 12196#(<= main_x 18), 12197#(<= main_x 19), 12198#(<= main_x 20), 12199#(<= main_x 21), 12200#(<= main_x 22), 12201#(<= main_x 23), 12202#(<= main_x 24), 12203#(<= main_x 25), 12204#(<= main_x 26), 12205#(<= main_x 27), 12206#(<= main_x 28), 12207#(<= main_x 29), 12208#(<= main_x 30), 12209#(<= main_x 31), 12210#(<= main_x 32), 12211#(<= main_x 33), 12212#(<= main_x 34), 12213#(<= main_x 35), 12214#(<= main_x 36), 12215#(<= main_x 37), 12216#(<= main_x 38), 12217#(<= main_x 39), 12218#(<= main_x 40), 12219#(<= main_x 41), 12220#(<= main_x 42), 12221#(<= main_x 43), 12222#(<= main_x 44), 12223#(<= main_x 45), 12224#(<= main_x 46), 12225#(<= main_x 47), 12226#(<= main_x 48), 12227#(<= main_x 49), 12228#(<= main_x 50), 12229#(<= main_x 51), 12230#(<= main_x 52), 12231#(<= main_x 53), 12232#(<= main_x 54), 12233#(<= main_x 55), 12234#(<= main_x 56), 12235#(<= main_x 57), 12236#(<= main_x 58), 12237#(<= main_x 59), 12238#(<= main_x 60), 12239#(<= main_x 61), 12240#(<= main_x 62), 12241#(<= main_x 63), 12242#(<= main_x 64), 12243#(<= main_x 65)] [2018-07-23 13:54:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,423 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:54:58,424 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:54:58,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:54:58,425 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 68 states. [2018-07-23 13:54:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:58,474 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-07-23 13:54:58,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:54:58,475 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 68 [2018-07-23 13:54:58,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:58,475 INFO L225 Difference]: With dead ends: 72 [2018-07-23 13:54:58,476 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:54:58,476 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:54:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:54:58,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-07-23 13:54:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-07-23 13:54:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-07-23 13:54:58,479 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 68 [2018-07-23 13:54:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:58,480 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-07-23 13:54:58,480 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:54:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-07-23 13:54:58,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 13:54:58,480 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:58,481 INFO L357 BasicCegarLoop]: trace histogram [66, 1, 1, 1] [2018-07-23 13:54:58,481 INFO L414 AbstractCegarLoop]: === Iteration 67 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:58,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1207718432, now seen corresponding path program 66 times [2018-07-23 13:54:58,481 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,691 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:58,691 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-07-23 13:54:58,691 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,692 INFO L185 omatonBuilderFactory]: Interpolants [12544#(<= main_x 14), 12545#(<= main_x 15), 12546#(<= main_x 16), 12547#(<= main_x 17), 12548#(<= main_x 18), 12549#(<= main_x 19), 12550#(<= main_x 20), 12551#(<= main_x 21), 12552#(<= main_x 22), 12553#(<= main_x 23), 12554#(<= main_x 24), 12555#(<= main_x 25), 12556#(<= main_x 26), 12557#(<= main_x 27), 12558#(<= main_x 28), 12559#(<= main_x 29), 12560#(<= main_x 30), 12561#(<= main_x 31), 12562#(<= main_x 32), 12563#(<= main_x 33), 12564#(<= main_x 34), 12565#(<= main_x 35), 12566#(<= main_x 36), 12567#(<= main_x 37), 12568#(<= main_x 38), 12569#(<= main_x 39), 12570#(<= main_x 40), 12571#(<= main_x 41), 12572#(<= main_x 42), 12573#(<= main_x 43), 12574#(<= main_x 44), 12575#(<= main_x 45), 12576#(<= main_x 46), 12577#(<= main_x 47), 12578#(<= main_x 48), 12579#(<= main_x 49), 12580#(<= main_x 50), 12581#(<= main_x 51), 12582#(<= main_x 52), 12583#(<= main_x 53), 12584#(<= main_x 54), 12585#(<= main_x 55), 12586#(<= main_x 56), 12587#(<= main_x 57), 12588#(<= main_x 58), 12589#(<= main_x 59), 12590#(<= main_x 60), 12591#(<= main_x 61), 12592#(<= main_x 62), 12593#(<= main_x 63), 12594#(<= main_x 64), 12595#(<= main_x 65), 12596#(<= main_x 66), 12528#true, 12529#false, 12530#(<= main_x 0), 12531#(<= main_x 1), 12532#(<= main_x 2), 12533#(<= main_x 3), 12534#(<= main_x 4), 12535#(<= main_x 5), 12536#(<= main_x 6), 12537#(<= main_x 7), 12538#(<= main_x 8), 12539#(<= main_x 9), 12540#(<= main_x 10), 12541#(<= main_x 11), 12542#(<= main_x 12), 12543#(<= main_x 13)] [2018-07-23 13:54:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,692 INFO L450 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-07-23 13:54:58,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-07-23 13:54:58,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:54:58,694 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 69 states. [2018-07-23 13:54:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:58,736 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-07-23 13:54:58,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-07-23 13:54:58,737 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 69 [2018-07-23 13:54:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:58,737 INFO L225 Difference]: With dead ends: 73 [2018-07-23 13:54:58,737 INFO L226 Difference]: Without dead ends: 71 [2018-07-23 13:54:58,738 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:54:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-23 13:54:58,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-07-23 13:54:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-23 13:54:58,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2018-07-23 13:54:58,741 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 69 [2018-07-23 13:54:58,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:58,741 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2018-07-23 13:54:58,742 INFO L472 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-07-23 13:54:58,742 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-07-23 13:54:58,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-23 13:54:58,742 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:58,742 INFO L357 BasicCegarLoop]: trace histogram [67, 1, 1, 1] [2018-07-23 13:54:58,743 INFO L414 AbstractCegarLoop]: === Iteration 68 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:58,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1215438138, now seen corresponding path program 67 times [2018-07-23 13:54:58,743 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,955 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:58,956 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:54:58,956 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,956 INFO L185 omatonBuilderFactory]: Interpolants [12928#(<= main_x 41), 12929#(<= main_x 42), 12930#(<= main_x 43), 12931#(<= main_x 44), 12932#(<= main_x 45), 12933#(<= main_x 46), 12934#(<= main_x 47), 12935#(<= main_x 48), 12936#(<= main_x 49), 12937#(<= main_x 50), 12938#(<= main_x 51), 12939#(<= main_x 52), 12940#(<= main_x 53), 12941#(<= main_x 54), 12942#(<= main_x 55), 12943#(<= main_x 56), 12944#(<= main_x 57), 12945#(<= main_x 58), 12946#(<= main_x 59), 12947#(<= main_x 60), 12948#(<= main_x 61), 12949#(<= main_x 62), 12950#(<= main_x 63), 12951#(<= main_x 64), 12952#(<= main_x 65), 12953#(<= main_x 66), 12954#(<= main_x 67), 12885#true, 12886#false, 12887#(<= main_x 0), 12888#(<= main_x 1), 12889#(<= main_x 2), 12890#(<= main_x 3), 12891#(<= main_x 4), 12892#(<= main_x 5), 12893#(<= main_x 6), 12894#(<= main_x 7), 12895#(<= main_x 8), 12896#(<= main_x 9), 12897#(<= main_x 10), 12898#(<= main_x 11), 12899#(<= main_x 12), 12900#(<= main_x 13), 12901#(<= main_x 14), 12902#(<= main_x 15), 12903#(<= main_x 16), 12904#(<= main_x 17), 12905#(<= main_x 18), 12906#(<= main_x 19), 12907#(<= main_x 20), 12908#(<= main_x 21), 12909#(<= main_x 22), 12910#(<= main_x 23), 12911#(<= main_x 24), 12912#(<= main_x 25), 12913#(<= main_x 26), 12914#(<= main_x 27), 12915#(<= main_x 28), 12916#(<= main_x 29), 12917#(<= main_x 30), 12918#(<= main_x 31), 12919#(<= main_x 32), 12920#(<= main_x 33), 12921#(<= main_x 34), 12922#(<= main_x 35), 12923#(<= main_x 36), 12924#(<= main_x 37), 12925#(<= main_x 38), 12926#(<= main_x 39), 12927#(<= main_x 40)] [2018-07-23 13:54:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:58,957 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:54:58,958 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:54:58,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:54:58,959 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 70 states. [2018-07-23 13:54:58,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:58,988 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-07-23 13:54:58,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:54:58,989 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 70 [2018-07-23 13:54:58,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:58,989 INFO L225 Difference]: With dead ends: 74 [2018-07-23 13:54:58,989 INFO L226 Difference]: Without dead ends: 72 [2018-07-23 13:54:58,990 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:54:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-07-23 13:54:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-07-23 13:54:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-07-23 13:54:58,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-07-23 13:54:58,993 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 70 [2018-07-23 13:54:58,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:58,993 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-07-23 13:54:58,994 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:54:58,994 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-07-23 13:54:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-07-23 13:54:58,994 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:58,994 INFO L357 BasicCegarLoop]: trace histogram [68, 1, 1, 1] [2018-07-23 13:54:58,995 INFO L414 AbstractCegarLoop]: === Iteration 69 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:58,995 INFO L82 PathProgramCache]: Analyzing trace with hash 976119520, now seen corresponding path program 68 times [2018-07-23 13:54:58,995 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,207 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:59,207 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-07-23 13:54:59,207 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,208 INFO L185 omatonBuilderFactory]: Interpolants [13312#(<= main_x 63), 13313#(<= main_x 64), 13314#(<= main_x 65), 13315#(<= main_x 66), 13316#(<= main_x 67), 13317#(<= main_x 68), 13247#true, 13248#false, 13249#(<= main_x 0), 13250#(<= main_x 1), 13251#(<= main_x 2), 13252#(<= main_x 3), 13253#(<= main_x 4), 13254#(<= main_x 5), 13255#(<= main_x 6), 13256#(<= main_x 7), 13257#(<= main_x 8), 13258#(<= main_x 9), 13259#(<= main_x 10), 13260#(<= main_x 11), 13261#(<= main_x 12), 13262#(<= main_x 13), 13263#(<= main_x 14), 13264#(<= main_x 15), 13265#(<= main_x 16), 13266#(<= main_x 17), 13267#(<= main_x 18), 13268#(<= main_x 19), 13269#(<= main_x 20), 13270#(<= main_x 21), 13271#(<= main_x 22), 13272#(<= main_x 23), 13273#(<= main_x 24), 13274#(<= main_x 25), 13275#(<= main_x 26), 13276#(<= main_x 27), 13277#(<= main_x 28), 13278#(<= main_x 29), 13279#(<= main_x 30), 13280#(<= main_x 31), 13281#(<= main_x 32), 13282#(<= main_x 33), 13283#(<= main_x 34), 13284#(<= main_x 35), 13285#(<= main_x 36), 13286#(<= main_x 37), 13287#(<= main_x 38), 13288#(<= main_x 39), 13289#(<= main_x 40), 13290#(<= main_x 41), 13291#(<= main_x 42), 13292#(<= main_x 43), 13293#(<= main_x 44), 13294#(<= main_x 45), 13295#(<= main_x 46), 13296#(<= main_x 47), 13297#(<= main_x 48), 13298#(<= main_x 49), 13299#(<= main_x 50), 13300#(<= main_x 51), 13301#(<= main_x 52), 13302#(<= main_x 53), 13303#(<= main_x 54), 13304#(<= main_x 55), 13305#(<= main_x 56), 13306#(<= main_x 57), 13307#(<= main_x 58), 13308#(<= main_x 59), 13309#(<= main_x 60), 13310#(<= main_x 61), 13311#(<= main_x 62)] [2018-07-23 13:54:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,209 INFO L450 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-07-23 13:54:59,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-07-23 13:54:59,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:54:59,210 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 71 states. [2018-07-23 13:54:59,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:59,254 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-07-23 13:54:59,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-07-23 13:54:59,254 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 71 [2018-07-23 13:54:59,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:59,255 INFO L225 Difference]: With dead ends: 75 [2018-07-23 13:54:59,255 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 13:54:59,256 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:54:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 13:54:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-07-23 13:54:59,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-07-23 13:54:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-07-23 13:54:59,258 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2018-07-23 13:54:59,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:59,259 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-07-23 13:54:59,259 INFO L472 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-07-23 13:54:59,259 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-07-23 13:54:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-23 13:54:59,260 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:59,260 INFO L357 BasicCegarLoop]: trace histogram [69, 1, 1, 1] [2018-07-23 13:54:59,260 INFO L414 AbstractCegarLoop]: === Iteration 70 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:59,260 INFO L82 PathProgramCache]: Analyzing trace with hash 194930182, now seen corresponding path program 69 times [2018-07-23 13:54:59,260 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,473 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:59,473 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:54:59,473 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:59,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,474 INFO L185 omatonBuilderFactory]: Interpolants [13614#true, 13615#false, 13616#(<= main_x 0), 13617#(<= main_x 1), 13618#(<= main_x 2), 13619#(<= main_x 3), 13620#(<= main_x 4), 13621#(<= main_x 5), 13622#(<= main_x 6), 13623#(<= main_x 7), 13624#(<= main_x 8), 13625#(<= main_x 9), 13626#(<= main_x 10), 13627#(<= main_x 11), 13628#(<= main_x 12), 13629#(<= main_x 13), 13630#(<= main_x 14), 13631#(<= main_x 15), 13632#(<= main_x 16), 13633#(<= main_x 17), 13634#(<= main_x 18), 13635#(<= main_x 19), 13636#(<= main_x 20), 13637#(<= main_x 21), 13638#(<= main_x 22), 13639#(<= main_x 23), 13640#(<= main_x 24), 13641#(<= main_x 25), 13642#(<= main_x 26), 13643#(<= main_x 27), 13644#(<= main_x 28), 13645#(<= main_x 29), 13646#(<= main_x 30), 13647#(<= main_x 31), 13648#(<= main_x 32), 13649#(<= main_x 33), 13650#(<= main_x 34), 13651#(<= main_x 35), 13652#(<= main_x 36), 13653#(<= main_x 37), 13654#(<= main_x 38), 13655#(<= main_x 39), 13656#(<= main_x 40), 13657#(<= main_x 41), 13658#(<= main_x 42), 13659#(<= main_x 43), 13660#(<= main_x 44), 13661#(<= main_x 45), 13662#(<= main_x 46), 13663#(<= main_x 47), 13664#(<= main_x 48), 13665#(<= main_x 49), 13666#(<= main_x 50), 13667#(<= main_x 51), 13668#(<= main_x 52), 13669#(<= main_x 53), 13670#(<= main_x 54), 13671#(<= main_x 55), 13672#(<= main_x 56), 13673#(<= main_x 57), 13674#(<= main_x 58), 13675#(<= main_x 59), 13676#(<= main_x 60), 13677#(<= main_x 61), 13678#(<= main_x 62), 13679#(<= main_x 63), 13680#(<= main_x 64), 13681#(<= main_x 65), 13682#(<= main_x 66), 13683#(<= main_x 67), 13684#(<= main_x 68), 13685#(<= main_x 69)] [2018-07-23 13:54:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,474 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:54:59,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:54:59,475 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:54:59,476 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 72 states. [2018-07-23 13:54:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:59,525 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-07-23 13:54:59,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:54:59,525 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 72 [2018-07-23 13:54:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:59,526 INFO L225 Difference]: With dead ends: 76 [2018-07-23 13:54:59,526 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 13:54:59,527 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:54:59,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 13:54:59,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-07-23 13:54:59,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-07-23 13:54:59,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-07-23 13:54:59,529 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 72 [2018-07-23 13:54:59,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:59,530 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-07-23 13:54:59,530 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:54:59,530 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-07-23 13:54:59,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-07-23 13:54:59,531 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:59,531 INFO L357 BasicCegarLoop]: trace histogram [70, 1, 1, 1] [2018-07-23 13:54:59,531 INFO L414 AbstractCegarLoop]: === Iteration 71 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:59,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1747864480, now seen corresponding path program 70 times [2018-07-23 13:54:59,531 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,756 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:59,756 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-07-23 13:54:59,756 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,757 INFO L185 omatonBuilderFactory]: Interpolants [13986#true, 13987#false, 13988#(<= main_x 0), 13989#(<= main_x 1), 13990#(<= main_x 2), 13991#(<= main_x 3), 13992#(<= main_x 4), 13993#(<= main_x 5), 13994#(<= main_x 6), 13995#(<= main_x 7), 13996#(<= main_x 8), 13997#(<= main_x 9), 13998#(<= main_x 10), 13999#(<= main_x 11), 14000#(<= main_x 12), 14001#(<= main_x 13), 14002#(<= main_x 14), 14003#(<= main_x 15), 14004#(<= main_x 16), 14005#(<= main_x 17), 14006#(<= main_x 18), 14007#(<= main_x 19), 14008#(<= main_x 20), 14009#(<= main_x 21), 14010#(<= main_x 22), 14011#(<= main_x 23), 14012#(<= main_x 24), 14013#(<= main_x 25), 14014#(<= main_x 26), 14015#(<= main_x 27), 14016#(<= main_x 28), 14017#(<= main_x 29), 14018#(<= main_x 30), 14019#(<= main_x 31), 14020#(<= main_x 32), 14021#(<= main_x 33), 14022#(<= main_x 34), 14023#(<= main_x 35), 14024#(<= main_x 36), 14025#(<= main_x 37), 14026#(<= main_x 38), 14027#(<= main_x 39), 14028#(<= main_x 40), 14029#(<= main_x 41), 14030#(<= main_x 42), 14031#(<= main_x 43), 14032#(<= main_x 44), 14033#(<= main_x 45), 14034#(<= main_x 46), 14035#(<= main_x 47), 14036#(<= main_x 48), 14037#(<= main_x 49), 14038#(<= main_x 50), 14039#(<= main_x 51), 14040#(<= main_x 52), 14041#(<= main_x 53), 14042#(<= main_x 54), 14043#(<= main_x 55), 14044#(<= main_x 56), 14045#(<= main_x 57), 14046#(<= main_x 58), 14047#(<= main_x 59), 14048#(<= main_x 60), 14049#(<= main_x 61), 14050#(<= main_x 62), 14051#(<= main_x 63), 14052#(<= main_x 64), 14053#(<= main_x 65), 14054#(<= main_x 66), 14055#(<= main_x 67), 14056#(<= main_x 68), 14057#(<= main_x 69), 14058#(<= main_x 70)] [2018-07-23 13:54:59,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,757 INFO L450 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-07-23 13:54:59,758 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-07-23 13:54:59,759 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:54:59,759 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 73 states. [2018-07-23 13:54:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:59,811 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-07-23 13:54:59,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-07-23 13:54:59,811 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 73 [2018-07-23 13:54:59,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:59,812 INFO L225 Difference]: With dead ends: 77 [2018-07-23 13:54:59,812 INFO L226 Difference]: Without dead ends: 75 [2018-07-23 13:54:59,813 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:54:59,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-07-23 13:54:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-07-23 13:54:59,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-07-23 13:54:59,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-07-23 13:54:59,817 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 73 [2018-07-23 13:54:59,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:59,818 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-07-23 13:54:59,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-07-23 13:54:59,818 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-07-23 13:54:59,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-07-23 13:54:59,818 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:59,818 INFO L357 BasicCegarLoop]: trace histogram [71, 1, 1, 1] [2018-07-23 13:54:59,819 INFO L414 AbstractCegarLoop]: === Iteration 72 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:59,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1650779834, now seen corresponding path program 71 times [2018-07-23 13:54:59,819 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,052 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:00,052 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:55:00,053 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:00,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,053 INFO L185 omatonBuilderFactory]: Interpolants [14363#true, 14364#false, 14365#(<= main_x 0), 14366#(<= main_x 1), 14367#(<= main_x 2), 14368#(<= main_x 3), 14369#(<= main_x 4), 14370#(<= main_x 5), 14371#(<= main_x 6), 14372#(<= main_x 7), 14373#(<= main_x 8), 14374#(<= main_x 9), 14375#(<= main_x 10), 14376#(<= main_x 11), 14377#(<= main_x 12), 14378#(<= main_x 13), 14379#(<= main_x 14), 14380#(<= main_x 15), 14381#(<= main_x 16), 14382#(<= main_x 17), 14383#(<= main_x 18), 14384#(<= main_x 19), 14385#(<= main_x 20), 14386#(<= main_x 21), 14387#(<= main_x 22), 14388#(<= main_x 23), 14389#(<= main_x 24), 14390#(<= main_x 25), 14391#(<= main_x 26), 14392#(<= main_x 27), 14393#(<= main_x 28), 14394#(<= main_x 29), 14395#(<= main_x 30), 14396#(<= main_x 31), 14397#(<= main_x 32), 14398#(<= main_x 33), 14399#(<= main_x 34), 14400#(<= main_x 35), 14401#(<= main_x 36), 14402#(<= main_x 37), 14403#(<= main_x 38), 14404#(<= main_x 39), 14405#(<= main_x 40), 14406#(<= main_x 41), 14407#(<= main_x 42), 14408#(<= main_x 43), 14409#(<= main_x 44), 14410#(<= main_x 45), 14411#(<= main_x 46), 14412#(<= main_x 47), 14413#(<= main_x 48), 14414#(<= main_x 49), 14415#(<= main_x 50), 14416#(<= main_x 51), 14417#(<= main_x 52), 14418#(<= main_x 53), 14419#(<= main_x 54), 14420#(<= main_x 55), 14421#(<= main_x 56), 14422#(<= main_x 57), 14423#(<= main_x 58), 14424#(<= main_x 59), 14425#(<= main_x 60), 14426#(<= main_x 61), 14427#(<= main_x 62), 14428#(<= main_x 63), 14429#(<= main_x 64), 14430#(<= main_x 65), 14431#(<= main_x 66), 14432#(<= main_x 67), 14433#(<= main_x 68), 14434#(<= main_x 69), 14435#(<= main_x 70), 14436#(<= main_x 71)] [2018-07-23 13:55:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,054 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:55:00,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:55:00,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:55:00,055 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 74 states. [2018-07-23 13:55:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:00,106 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-07-23 13:55:00,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:55:00,107 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 74 [2018-07-23 13:55:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:00,107 INFO L225 Difference]: With dead ends: 78 [2018-07-23 13:55:00,108 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:55:00,108 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:55:00,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:55:00,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-07-23 13:55:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-23 13:55:00,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-07-23 13:55:00,111 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 74 [2018-07-23 13:55:00,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:00,112 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-07-23 13:55:00,112 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:55:00,112 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-07-23 13:55:00,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-23 13:55:00,112 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:00,113 INFO L357 BasicCegarLoop]: trace histogram [72, 1, 1, 1] [2018-07-23 13:55:00,113 INFO L414 AbstractCegarLoop]: === Iteration 73 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:00,113 INFO L82 PathProgramCache]: Analyzing trace with hash 365428832, now seen corresponding path program 72 times [2018-07-23 13:55:00,113 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,340 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:00,340 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-07-23 13:55:00,340 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,341 INFO L185 omatonBuilderFactory]: Interpolants [14745#true, 14746#false, 14747#(<= main_x 0), 14748#(<= main_x 1), 14749#(<= main_x 2), 14750#(<= main_x 3), 14751#(<= main_x 4), 14752#(<= main_x 5), 14753#(<= main_x 6), 14754#(<= main_x 7), 14755#(<= main_x 8), 14756#(<= main_x 9), 14757#(<= main_x 10), 14758#(<= main_x 11), 14759#(<= main_x 12), 14760#(<= main_x 13), 14761#(<= main_x 14), 14762#(<= main_x 15), 14763#(<= main_x 16), 14764#(<= main_x 17), 14765#(<= main_x 18), 14766#(<= main_x 19), 14767#(<= main_x 20), 14768#(<= main_x 21), 14769#(<= main_x 22), 14770#(<= main_x 23), 14771#(<= main_x 24), 14772#(<= main_x 25), 14773#(<= main_x 26), 14774#(<= main_x 27), 14775#(<= main_x 28), 14776#(<= main_x 29), 14777#(<= main_x 30), 14778#(<= main_x 31), 14779#(<= main_x 32), 14780#(<= main_x 33), 14781#(<= main_x 34), 14782#(<= main_x 35), 14783#(<= main_x 36), 14784#(<= main_x 37), 14785#(<= main_x 38), 14786#(<= main_x 39), 14787#(<= main_x 40), 14788#(<= main_x 41), 14789#(<= main_x 42), 14790#(<= main_x 43), 14791#(<= main_x 44), 14792#(<= main_x 45), 14793#(<= main_x 46), 14794#(<= main_x 47), 14795#(<= main_x 48), 14796#(<= main_x 49), 14797#(<= main_x 50), 14798#(<= main_x 51), 14799#(<= main_x 52), 14800#(<= main_x 53), 14801#(<= main_x 54), 14802#(<= main_x 55), 14803#(<= main_x 56), 14804#(<= main_x 57), 14805#(<= main_x 58), 14806#(<= main_x 59), 14807#(<= main_x 60), 14808#(<= main_x 61), 14809#(<= main_x 62), 14810#(<= main_x 63), 14811#(<= main_x 64), 14812#(<= main_x 65), 14813#(<= main_x 66), 14814#(<= main_x 67), 14815#(<= main_x 68), 14816#(<= main_x 69), 14817#(<= main_x 70), 14818#(<= main_x 71), 14819#(<= main_x 72)] [2018-07-23 13:55:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,342 INFO L450 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-07-23 13:55:00,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-07-23 13:55:00,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:55:00,343 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 75 states. [2018-07-23 13:55:00,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:00,397 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-07-23 13:55:00,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-07-23 13:55:00,397 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 75 [2018-07-23 13:55:00,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:00,398 INFO L225 Difference]: With dead ends: 79 [2018-07-23 13:55:00,398 INFO L226 Difference]: Without dead ends: 77 [2018-07-23 13:55:00,399 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:55:00,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-07-23 13:55:00,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-07-23 13:55:00,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-07-23 13:55:00,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-07-23 13:55:00,402 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 75 [2018-07-23 13:55:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:00,402 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-07-23 13:55:00,402 INFO L472 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-07-23 13:55:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-07-23 13:55:00,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-07-23 13:55:00,403 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:00,403 INFO L357 BasicCegarLoop]: trace histogram [73, 1, 1, 1] [2018-07-23 13:55:00,403 INFO L414 AbstractCegarLoop]: === Iteration 74 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:00,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1556611962, now seen corresponding path program 73 times [2018-07-23 13:55:00,404 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,649 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:00,649 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:55:00,650 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,650 INFO L185 omatonBuilderFactory]: Interpolants [15132#true, 15133#false, 15134#(<= main_x 0), 15135#(<= main_x 1), 15136#(<= main_x 2), 15137#(<= main_x 3), 15138#(<= main_x 4), 15139#(<= main_x 5), 15140#(<= main_x 6), 15141#(<= main_x 7), 15142#(<= main_x 8), 15143#(<= main_x 9), 15144#(<= main_x 10), 15145#(<= main_x 11), 15146#(<= main_x 12), 15147#(<= main_x 13), 15148#(<= main_x 14), 15149#(<= main_x 15), 15150#(<= main_x 16), 15151#(<= main_x 17), 15152#(<= main_x 18), 15153#(<= main_x 19), 15154#(<= main_x 20), 15155#(<= main_x 21), 15156#(<= main_x 22), 15157#(<= main_x 23), 15158#(<= main_x 24), 15159#(<= main_x 25), 15160#(<= main_x 26), 15161#(<= main_x 27), 15162#(<= main_x 28), 15163#(<= main_x 29), 15164#(<= main_x 30), 15165#(<= main_x 31), 15166#(<= main_x 32), 15167#(<= main_x 33), 15168#(<= main_x 34), 15169#(<= main_x 35), 15170#(<= main_x 36), 15171#(<= main_x 37), 15172#(<= main_x 38), 15173#(<= main_x 39), 15174#(<= main_x 40), 15175#(<= main_x 41), 15176#(<= main_x 42), 15177#(<= main_x 43), 15178#(<= main_x 44), 15179#(<= main_x 45), 15180#(<= main_x 46), 15181#(<= main_x 47), 15182#(<= main_x 48), 15183#(<= main_x 49), 15184#(<= main_x 50), 15185#(<= main_x 51), 15186#(<= main_x 52), 15187#(<= main_x 53), 15188#(<= main_x 54), 15189#(<= main_x 55), 15190#(<= main_x 56), 15191#(<= main_x 57), 15192#(<= main_x 58), 15193#(<= main_x 59), 15194#(<= main_x 60), 15195#(<= main_x 61), 15196#(<= main_x 62), 15197#(<= main_x 63), 15198#(<= main_x 64), 15199#(<= main_x 65), 15200#(<= main_x 66), 15201#(<= main_x 67), 15202#(<= main_x 68), 15203#(<= main_x 69), 15204#(<= main_x 70), 15205#(<= main_x 71), 15206#(<= main_x 72), 15207#(<= main_x 73)] [2018-07-23 13:55:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,651 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:55:00,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:55:00,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:55:00,653 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 76 states. [2018-07-23 13:55:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:00,707 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-07-23 13:55:00,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:55:00,707 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 76 [2018-07-23 13:55:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:00,708 INFO L225 Difference]: With dead ends: 80 [2018-07-23 13:55:00,708 INFO L226 Difference]: Without dead ends: 78 [2018-07-23 13:55:00,709 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:55:00,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-23 13:55:00,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-07-23 13:55:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 13:55:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-07-23 13:55:00,712 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 76 [2018-07-23 13:55:00,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:00,712 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-07-23 13:55:00,712 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:55:00,712 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-07-23 13:55:00,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-23 13:55:00,713 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:00,713 INFO L357 BasicCegarLoop]: trace histogram [74, 1, 1, 1] [2018-07-23 13:55:00,713 INFO L414 AbstractCegarLoop]: === Iteration 75 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:00,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1010334432, now seen corresponding path program 74 times [2018-07-23 13:55:00,714 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:00,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,921 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:00,921 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-07-23 13:55:00,921 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:00,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,922 INFO L185 omatonBuilderFactory]: Interpolants [15524#true, 15525#false, 15526#(<= main_x 0), 15527#(<= main_x 1), 15528#(<= main_x 2), 15529#(<= main_x 3), 15530#(<= main_x 4), 15531#(<= main_x 5), 15532#(<= main_x 6), 15533#(<= main_x 7), 15534#(<= main_x 8), 15535#(<= main_x 9), 15536#(<= main_x 10), 15537#(<= main_x 11), 15538#(<= main_x 12), 15539#(<= main_x 13), 15540#(<= main_x 14), 15541#(<= main_x 15), 15542#(<= main_x 16), 15543#(<= main_x 17), 15544#(<= main_x 18), 15545#(<= main_x 19), 15546#(<= main_x 20), 15547#(<= main_x 21), 15548#(<= main_x 22), 15549#(<= main_x 23), 15550#(<= main_x 24), 15551#(<= main_x 25), 15552#(<= main_x 26), 15553#(<= main_x 27), 15554#(<= main_x 28), 15555#(<= main_x 29), 15556#(<= main_x 30), 15557#(<= main_x 31), 15558#(<= main_x 32), 15559#(<= main_x 33), 15560#(<= main_x 34), 15561#(<= main_x 35), 15562#(<= main_x 36), 15563#(<= main_x 37), 15564#(<= main_x 38), 15565#(<= main_x 39), 15566#(<= main_x 40), 15567#(<= main_x 41), 15568#(<= main_x 42), 15569#(<= main_x 43), 15570#(<= main_x 44), 15571#(<= main_x 45), 15572#(<= main_x 46), 15573#(<= main_x 47), 15574#(<= main_x 48), 15575#(<= main_x 49), 15576#(<= main_x 50), 15577#(<= main_x 51), 15578#(<= main_x 52), 15579#(<= main_x 53), 15580#(<= main_x 54), 15581#(<= main_x 55), 15582#(<= main_x 56), 15583#(<= main_x 57), 15584#(<= main_x 58), 15585#(<= main_x 59), 15586#(<= main_x 60), 15587#(<= main_x 61), 15588#(<= main_x 62), 15589#(<= main_x 63), 15590#(<= main_x 64), 15591#(<= main_x 65), 15592#(<= main_x 66), 15593#(<= main_x 67), 15594#(<= main_x 68), 15595#(<= main_x 69), 15596#(<= main_x 70), 15597#(<= main_x 71), 15598#(<= main_x 72), 15599#(<= main_x 73), 15600#(<= main_x 74)] [2018-07-23 13:55:00,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:00,923 INFO L450 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-07-23 13:55:00,923 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-07-23 13:55:00,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:55:00,924 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 77 states. [2018-07-23 13:55:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:00,979 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-07-23 13:55:00,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-07-23 13:55:00,980 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 77 [2018-07-23 13:55:00,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:00,980 INFO L225 Difference]: With dead ends: 81 [2018-07-23 13:55:00,980 INFO L226 Difference]: Without dead ends: 79 [2018-07-23 13:55:00,982 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:55:00,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-23 13:55:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-07-23 13:55:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-07-23 13:55:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-07-23 13:55:00,985 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 77 [2018-07-23 13:55:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:00,985 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-07-23 13:55:00,985 INFO L472 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-07-23 13:55:00,986 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-07-23 13:55:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-23 13:55:00,986 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:00,987 INFO L357 BasicCegarLoop]: trace histogram [75, 1, 1, 1] [2018-07-23 13:55:00,987 INFO L414 AbstractCegarLoop]: === Iteration 76 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:00,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1255600186, now seen corresponding path program 75 times [2018-07-23 13:55:00,987 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,220 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:01,220 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:55:01,220 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,221 INFO L185 omatonBuilderFactory]: Interpolants [15921#true, 15922#false, 15923#(<= main_x 0), 15924#(<= main_x 1), 15925#(<= main_x 2), 15926#(<= main_x 3), 15927#(<= main_x 4), 15928#(<= main_x 5), 15929#(<= main_x 6), 15930#(<= main_x 7), 15931#(<= main_x 8), 15932#(<= main_x 9), 15933#(<= main_x 10), 15934#(<= main_x 11), 15935#(<= main_x 12), 15936#(<= main_x 13), 15937#(<= main_x 14), 15938#(<= main_x 15), 15939#(<= main_x 16), 15940#(<= main_x 17), 15941#(<= main_x 18), 15942#(<= main_x 19), 15943#(<= main_x 20), 15944#(<= main_x 21), 15945#(<= main_x 22), 15946#(<= main_x 23), 15947#(<= main_x 24), 15948#(<= main_x 25), 15949#(<= main_x 26), 15950#(<= main_x 27), 15951#(<= main_x 28), 15952#(<= main_x 29), 15953#(<= main_x 30), 15954#(<= main_x 31), 15955#(<= main_x 32), 15956#(<= main_x 33), 15957#(<= main_x 34), 15958#(<= main_x 35), 15959#(<= main_x 36), 15960#(<= main_x 37), 15961#(<= main_x 38), 15962#(<= main_x 39), 15963#(<= main_x 40), 15964#(<= main_x 41), 15965#(<= main_x 42), 15966#(<= main_x 43), 15967#(<= main_x 44), 15968#(<= main_x 45), 15969#(<= main_x 46), 15970#(<= main_x 47), 15971#(<= main_x 48), 15972#(<= main_x 49), 15973#(<= main_x 50), 15974#(<= main_x 51), 15975#(<= main_x 52), 15976#(<= main_x 53), 15977#(<= main_x 54), 15978#(<= main_x 55), 15979#(<= main_x 56), 15980#(<= main_x 57), 15981#(<= main_x 58), 15982#(<= main_x 59), 15983#(<= main_x 60), 15984#(<= main_x 61), 15985#(<= main_x 62), 15986#(<= main_x 63), 15987#(<= main_x 64), 15988#(<= main_x 65), 15989#(<= main_x 66), 15990#(<= main_x 67), 15991#(<= main_x 68), 15992#(<= main_x 69), 15993#(<= main_x 70), 15994#(<= main_x 71), 15995#(<= main_x 72), 15996#(<= main_x 73), 15997#(<= main_x 74), 15998#(<= main_x 75)] [2018-07-23 13:55:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,221 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:55:01,222 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:55:01,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:55:01,223 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 78 states. [2018-07-23 13:55:01,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:01,282 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-07-23 13:55:01,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:55:01,282 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 78 [2018-07-23 13:55:01,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:01,283 INFO L225 Difference]: With dead ends: 82 [2018-07-23 13:55:01,283 INFO L226 Difference]: Without dead ends: 80 [2018-07-23 13:55:01,284 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:55:01,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-07-23 13:55:01,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-07-23 13:55:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-07-23 13:55:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-07-23 13:55:01,288 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 78 [2018-07-23 13:55:01,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:01,288 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-07-23 13:55:01,288 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:55:01,288 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-07-23 13:55:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-07-23 13:55:01,289 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:01,289 INFO L357 BasicCegarLoop]: trace histogram [76, 1, 1, 1] [2018-07-23 13:55:01,289 INFO L414 AbstractCegarLoop]: === Iteration 77 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:01,289 INFO L82 PathProgramCache]: Analyzing trace with hash -268903968, now seen corresponding path program 76 times [2018-07-23 13:55:01,289 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:01,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,548 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:01,549 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-07-23 13:55:01,549 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,549 INFO L185 omatonBuilderFactory]: Interpolants [16384#(<= main_x 59), 16385#(<= main_x 60), 16386#(<= main_x 61), 16387#(<= main_x 62), 16388#(<= main_x 63), 16389#(<= main_x 64), 16390#(<= main_x 65), 16391#(<= main_x 66), 16392#(<= main_x 67), 16393#(<= main_x 68), 16394#(<= main_x 69), 16395#(<= main_x 70), 16396#(<= main_x 71), 16397#(<= main_x 72), 16398#(<= main_x 73), 16399#(<= main_x 74), 16400#(<= main_x 75), 16401#(<= main_x 76), 16323#true, 16324#false, 16325#(<= main_x 0), 16326#(<= main_x 1), 16327#(<= main_x 2), 16328#(<= main_x 3), 16329#(<= main_x 4), 16330#(<= main_x 5), 16331#(<= main_x 6), 16332#(<= main_x 7), 16333#(<= main_x 8), 16334#(<= main_x 9), 16335#(<= main_x 10), 16336#(<= main_x 11), 16337#(<= main_x 12), 16338#(<= main_x 13), 16339#(<= main_x 14), 16340#(<= main_x 15), 16341#(<= main_x 16), 16342#(<= main_x 17), 16343#(<= main_x 18), 16344#(<= main_x 19), 16345#(<= main_x 20), 16346#(<= main_x 21), 16347#(<= main_x 22), 16348#(<= main_x 23), 16349#(<= main_x 24), 16350#(<= main_x 25), 16351#(<= main_x 26), 16352#(<= main_x 27), 16353#(<= main_x 28), 16354#(<= main_x 29), 16355#(<= main_x 30), 16356#(<= main_x 31), 16357#(<= main_x 32), 16358#(<= main_x 33), 16359#(<= main_x 34), 16360#(<= main_x 35), 16361#(<= main_x 36), 16362#(<= main_x 37), 16363#(<= main_x 38), 16364#(<= main_x 39), 16365#(<= main_x 40), 16366#(<= main_x 41), 16367#(<= main_x 42), 16368#(<= main_x 43), 16369#(<= main_x 44), 16370#(<= main_x 45), 16371#(<= main_x 46), 16372#(<= main_x 47), 16373#(<= main_x 48), 16374#(<= main_x 49), 16375#(<= main_x 50), 16376#(<= main_x 51), 16377#(<= main_x 52), 16378#(<= main_x 53), 16379#(<= main_x 54), 16380#(<= main_x 55), 16381#(<= main_x 56), 16382#(<= main_x 57), 16383#(<= main_x 58)] [2018-07-23 13:55:01,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,550 INFO L450 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-07-23 13:55:01,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-07-23 13:55:01,551 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:55:01,552 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 79 states. [2018-07-23 13:55:01,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:01,592 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-07-23 13:55:01,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-07-23 13:55:01,592 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 79 [2018-07-23 13:55:01,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:01,593 INFO L225 Difference]: With dead ends: 83 [2018-07-23 13:55:01,593 INFO L226 Difference]: Without dead ends: 81 [2018-07-23 13:55:01,594 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:55:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-07-23 13:55:01,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-07-23 13:55:01,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-23 13:55:01,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-07-23 13:55:01,597 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 79 [2018-07-23 13:55:01,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:01,598 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-07-23 13:55:01,598 INFO L472 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-07-23 13:55:01,598 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-07-23 13:55:01,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-07-23 13:55:01,599 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:01,599 INFO L357 BasicCegarLoop]: trace histogram [77, 1, 1, 1] [2018-07-23 13:55:01,599 INFO L414 AbstractCegarLoop]: === Iteration 78 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:01,600 INFO L82 PathProgramCache]: Analyzing trace with hash 253907718, now seen corresponding path program 77 times [2018-07-23 13:55:01,600 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,835 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:01,835 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:55:01,835 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,836 INFO L185 omatonBuilderFactory]: Interpolants [16768#(<= main_x 36), 16769#(<= main_x 37), 16770#(<= main_x 38), 16771#(<= main_x 39), 16772#(<= main_x 40), 16773#(<= main_x 41), 16774#(<= main_x 42), 16775#(<= main_x 43), 16776#(<= main_x 44), 16777#(<= main_x 45), 16778#(<= main_x 46), 16779#(<= main_x 47), 16780#(<= main_x 48), 16781#(<= main_x 49), 16782#(<= main_x 50), 16783#(<= main_x 51), 16784#(<= main_x 52), 16785#(<= main_x 53), 16786#(<= main_x 54), 16787#(<= main_x 55), 16788#(<= main_x 56), 16789#(<= main_x 57), 16790#(<= main_x 58), 16791#(<= main_x 59), 16792#(<= main_x 60), 16793#(<= main_x 61), 16794#(<= main_x 62), 16795#(<= main_x 63), 16796#(<= main_x 64), 16797#(<= main_x 65), 16798#(<= main_x 66), 16799#(<= main_x 67), 16800#(<= main_x 68), 16801#(<= main_x 69), 16802#(<= main_x 70), 16803#(<= main_x 71), 16804#(<= main_x 72), 16805#(<= main_x 73), 16806#(<= main_x 74), 16807#(<= main_x 75), 16808#(<= main_x 76), 16809#(<= main_x 77), 16730#true, 16731#false, 16732#(<= main_x 0), 16733#(<= main_x 1), 16734#(<= main_x 2), 16735#(<= main_x 3), 16736#(<= main_x 4), 16737#(<= main_x 5), 16738#(<= main_x 6), 16739#(<= main_x 7), 16740#(<= main_x 8), 16741#(<= main_x 9), 16742#(<= main_x 10), 16743#(<= main_x 11), 16744#(<= main_x 12), 16745#(<= main_x 13), 16746#(<= main_x 14), 16747#(<= main_x 15), 16748#(<= main_x 16), 16749#(<= main_x 17), 16750#(<= main_x 18), 16751#(<= main_x 19), 16752#(<= main_x 20), 16753#(<= main_x 21), 16754#(<= main_x 22), 16755#(<= main_x 23), 16756#(<= main_x 24), 16757#(<= main_x 25), 16758#(<= main_x 26), 16759#(<= main_x 27), 16760#(<= main_x 28), 16761#(<= main_x 29), 16762#(<= main_x 30), 16763#(<= main_x 31), 16764#(<= main_x 32), 16765#(<= main_x 33), 16766#(<= main_x 34), 16767#(<= main_x 35)] [2018-07-23 13:55:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:01,837 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:55:01,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:55:01,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:55:01,838 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 80 states. [2018-07-23 13:55:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:01,874 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-07-23 13:55:01,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:55:01,874 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 80 [2018-07-23 13:55:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:01,875 INFO L225 Difference]: With dead ends: 84 [2018-07-23 13:55:01,875 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:55:01,876 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:55:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:55:01,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-07-23 13:55:01,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-07-23 13:55:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-07-23 13:55:01,878 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 80 [2018-07-23 13:55:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:01,879 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-07-23 13:55:01,879 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:55:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-07-23 13:55:01,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-07-23 13:55:01,880 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:01,880 INFO L357 BasicCegarLoop]: trace histogram [78, 1, 1, 1] [2018-07-23 13:55:01,880 INFO L414 AbstractCegarLoop]: === Iteration 79 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:01,880 INFO L82 PathProgramCache]: Analyzing trace with hash -718799200, now seen corresponding path program 78 times [2018-07-23 13:55:01,880 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,108 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:02,108 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-07-23 13:55:02,108 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,109 INFO L185 omatonBuilderFactory]: Interpolants [17152#(<= main_x 8), 17153#(<= main_x 9), 17154#(<= main_x 10), 17155#(<= main_x 11), 17156#(<= main_x 12), 17157#(<= main_x 13), 17158#(<= main_x 14), 17159#(<= main_x 15), 17160#(<= main_x 16), 17161#(<= main_x 17), 17162#(<= main_x 18), 17163#(<= main_x 19), 17164#(<= main_x 20), 17165#(<= main_x 21), 17166#(<= main_x 22), 17167#(<= main_x 23), 17168#(<= main_x 24), 17169#(<= main_x 25), 17170#(<= main_x 26), 17171#(<= main_x 27), 17172#(<= main_x 28), 17173#(<= main_x 29), 17174#(<= main_x 30), 17175#(<= main_x 31), 17176#(<= main_x 32), 17177#(<= main_x 33), 17178#(<= main_x 34), 17179#(<= main_x 35), 17180#(<= main_x 36), 17181#(<= main_x 37), 17182#(<= main_x 38), 17183#(<= main_x 39), 17184#(<= main_x 40), 17185#(<= main_x 41), 17186#(<= main_x 42), 17187#(<= main_x 43), 17188#(<= main_x 44), 17189#(<= main_x 45), 17190#(<= main_x 46), 17191#(<= main_x 47), 17192#(<= main_x 48), 17193#(<= main_x 49), 17194#(<= main_x 50), 17195#(<= main_x 51), 17196#(<= main_x 52), 17197#(<= main_x 53), 17198#(<= main_x 54), 17199#(<= main_x 55), 17200#(<= main_x 56), 17201#(<= main_x 57), 17202#(<= main_x 58), 17203#(<= main_x 59), 17204#(<= main_x 60), 17205#(<= main_x 61), 17206#(<= main_x 62), 17207#(<= main_x 63), 17208#(<= main_x 64), 17209#(<= main_x 65), 17210#(<= main_x 66), 17211#(<= main_x 67), 17212#(<= main_x 68), 17213#(<= main_x 69), 17214#(<= main_x 70), 17215#(<= main_x 71), 17216#(<= main_x 72), 17217#(<= main_x 73), 17218#(<= main_x 74), 17219#(<= main_x 75), 17220#(<= main_x 76), 17221#(<= main_x 77), 17222#(<= main_x 78), 17142#true, 17143#false, 17144#(<= main_x 0), 17145#(<= main_x 1), 17146#(<= main_x 2), 17147#(<= main_x 3), 17148#(<= main_x 4), 17149#(<= main_x 5), 17150#(<= main_x 6), 17151#(<= main_x 7)] [2018-07-23 13:55:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,109 INFO L450 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-07-23 13:55:02,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-07-23 13:55:02,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:55:02,111 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 81 states. [2018-07-23 13:55:02,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:02,173 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-07-23 13:55:02,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-07-23 13:55:02,173 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 81 [2018-07-23 13:55:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:02,174 INFO L225 Difference]: With dead ends: 85 [2018-07-23 13:55:02,174 INFO L226 Difference]: Without dead ends: 83 [2018-07-23 13:55:02,175 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:55:02,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-07-23 13:55:02,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-07-23 13:55:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-07-23 13:55:02,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2018-07-23 13:55:02,177 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 81 [2018-07-23 13:55:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:02,178 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2018-07-23 13:55:02,178 INFO L472 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-07-23 13:55:02,178 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-07-23 13:55:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-07-23 13:55:02,178 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:02,179 INFO L357 BasicCegarLoop]: trace histogram [79, 1, 1, 1] [2018-07-23 13:55:02,179 INFO L414 AbstractCegarLoop]: === Iteration 80 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:02,179 INFO L82 PathProgramCache]: Analyzing trace with hash -807942586, now seen corresponding path program 79 times [2018-07-23 13:55:02,179 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,462 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:02,462 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:55:02,462 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,463 INFO L185 omatonBuilderFactory]: Interpolants [17559#true, 17560#false, 17561#(<= main_x 0), 17562#(<= main_x 1), 17563#(<= main_x 2), 17564#(<= main_x 3), 17565#(<= main_x 4), 17566#(<= main_x 5), 17567#(<= main_x 6), 17568#(<= main_x 7), 17569#(<= main_x 8), 17570#(<= main_x 9), 17571#(<= main_x 10), 17572#(<= main_x 11), 17573#(<= main_x 12), 17574#(<= main_x 13), 17575#(<= main_x 14), 17576#(<= main_x 15), 17577#(<= main_x 16), 17578#(<= main_x 17), 17579#(<= main_x 18), 17580#(<= main_x 19), 17581#(<= main_x 20), 17582#(<= main_x 21), 17583#(<= main_x 22), 17584#(<= main_x 23), 17585#(<= main_x 24), 17586#(<= main_x 25), 17587#(<= main_x 26), 17588#(<= main_x 27), 17589#(<= main_x 28), 17590#(<= main_x 29), 17591#(<= main_x 30), 17592#(<= main_x 31), 17593#(<= main_x 32), 17594#(<= main_x 33), 17595#(<= main_x 34), 17596#(<= main_x 35), 17597#(<= main_x 36), 17598#(<= main_x 37), 17599#(<= main_x 38), 17600#(<= main_x 39), 17601#(<= main_x 40), 17602#(<= main_x 41), 17603#(<= main_x 42), 17604#(<= main_x 43), 17605#(<= main_x 44), 17606#(<= main_x 45), 17607#(<= main_x 46), 17608#(<= main_x 47), 17609#(<= main_x 48), 17610#(<= main_x 49), 17611#(<= main_x 50), 17612#(<= main_x 51), 17613#(<= main_x 52), 17614#(<= main_x 53), 17615#(<= main_x 54), 17616#(<= main_x 55), 17617#(<= main_x 56), 17618#(<= main_x 57), 17619#(<= main_x 58), 17620#(<= main_x 59), 17621#(<= main_x 60), 17622#(<= main_x 61), 17623#(<= main_x 62), 17624#(<= main_x 63), 17625#(<= main_x 64), 17626#(<= main_x 65), 17627#(<= main_x 66), 17628#(<= main_x 67), 17629#(<= main_x 68), 17630#(<= main_x 69), 17631#(<= main_x 70), 17632#(<= main_x 71), 17633#(<= main_x 72), 17634#(<= main_x 73), 17635#(<= main_x 74), 17636#(<= main_x 75), 17637#(<= main_x 76), 17638#(<= main_x 77), 17639#(<= main_x 78), 17640#(<= main_x 79)] [2018-07-23 13:55:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,464 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:55:02,464 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:55:02,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:55:02,465 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 82 states. [2018-07-23 13:55:02,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:02,539 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-07-23 13:55:02,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:55:02,540 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 82 [2018-07-23 13:55:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:02,541 INFO L225 Difference]: With dead ends: 86 [2018-07-23 13:55:02,541 INFO L226 Difference]: Without dead ends: 84 [2018-07-23 13:55:02,542 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:55:02,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-07-23 13:55:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-07-23 13:55:02,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-07-23 13:55:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-07-23 13:55:02,545 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 82 [2018-07-23 13:55:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:02,546 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-07-23 13:55:02,546 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:55:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-07-23 13:55:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-23 13:55:02,547 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:02,547 INFO L357 BasicCegarLoop]: trace histogram [80, 1, 1, 1] [2018-07-23 13:55:02,547 INFO L414 AbstractCegarLoop]: === Iteration 81 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:02,547 INFO L82 PathProgramCache]: Analyzing trace with hash 723579744, now seen corresponding path program 80 times [2018-07-23 13:55:02,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,815 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:02,815 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-07-23 13:55:02,815 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,816 INFO L185 omatonBuilderFactory]: Interpolants [18048#(<= main_x 65), 18049#(<= main_x 66), 18050#(<= main_x 67), 18051#(<= main_x 68), 18052#(<= main_x 69), 18053#(<= main_x 70), 18054#(<= main_x 71), 18055#(<= main_x 72), 18056#(<= main_x 73), 18057#(<= main_x 74), 18058#(<= main_x 75), 18059#(<= main_x 76), 18060#(<= main_x 77), 18061#(<= main_x 78), 18062#(<= main_x 79), 18063#(<= main_x 80), 17981#true, 17982#false, 17983#(<= main_x 0), 17984#(<= main_x 1), 17985#(<= main_x 2), 17986#(<= main_x 3), 17987#(<= main_x 4), 17988#(<= main_x 5), 17989#(<= main_x 6), 17990#(<= main_x 7), 17991#(<= main_x 8), 17992#(<= main_x 9), 17993#(<= main_x 10), 17994#(<= main_x 11), 17995#(<= main_x 12), 17996#(<= main_x 13), 17997#(<= main_x 14), 17998#(<= main_x 15), 17999#(<= main_x 16), 18000#(<= main_x 17), 18001#(<= main_x 18), 18002#(<= main_x 19), 18003#(<= main_x 20), 18004#(<= main_x 21), 18005#(<= main_x 22), 18006#(<= main_x 23), 18007#(<= main_x 24), 18008#(<= main_x 25), 18009#(<= main_x 26), 18010#(<= main_x 27), 18011#(<= main_x 28), 18012#(<= main_x 29), 18013#(<= main_x 30), 18014#(<= main_x 31), 18015#(<= main_x 32), 18016#(<= main_x 33), 18017#(<= main_x 34), 18018#(<= main_x 35), 18019#(<= main_x 36), 18020#(<= main_x 37), 18021#(<= main_x 38), 18022#(<= main_x 39), 18023#(<= main_x 40), 18024#(<= main_x 41), 18025#(<= main_x 42), 18026#(<= main_x 43), 18027#(<= main_x 44), 18028#(<= main_x 45), 18029#(<= main_x 46), 18030#(<= main_x 47), 18031#(<= main_x 48), 18032#(<= main_x 49), 18033#(<= main_x 50), 18034#(<= main_x 51), 18035#(<= main_x 52), 18036#(<= main_x 53), 18037#(<= main_x 54), 18038#(<= main_x 55), 18039#(<= main_x 56), 18040#(<= main_x 57), 18041#(<= main_x 58), 18042#(<= main_x 59), 18043#(<= main_x 60), 18044#(<= main_x 61), 18045#(<= main_x 62), 18046#(<= main_x 63), 18047#(<= main_x 64)] [2018-07-23 13:55:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:02,816 INFO L450 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-07-23 13:55:02,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-07-23 13:55:02,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:55:02,817 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 83 states. [2018-07-23 13:55:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:02,861 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-07-23 13:55:02,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-07-23 13:55:02,861 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 83 [2018-07-23 13:55:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:02,862 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:55:02,862 INFO L226 Difference]: Without dead ends: 85 [2018-07-23 13:55:02,862 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:55:02,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-23 13:55:02,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-07-23 13:55:02,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-07-23 13:55:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2018-07-23 13:55:02,865 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 83 [2018-07-23 13:55:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:02,865 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2018-07-23 13:55:02,865 INFO L472 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-07-23 13:55:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-07-23 13:55:02,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-07-23 13:55:02,866 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:02,866 INFO L357 BasicCegarLoop]: trace histogram [81, 1, 1, 1] [2018-07-23 13:55:02,866 INFO L414 AbstractCegarLoop]: === Iteration 82 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:02,867 INFO L82 PathProgramCache]: Analyzing trace with hash 956131718, now seen corresponding path program 81 times [2018-07-23 13:55:02,867 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,115 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:03,115 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:55:03,115 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:03,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,116 INFO L185 omatonBuilderFactory]: Interpolants [18432#(<= main_x 22), 18433#(<= main_x 23), 18434#(<= main_x 24), 18435#(<= main_x 25), 18436#(<= main_x 26), 18437#(<= main_x 27), 18438#(<= main_x 28), 18439#(<= main_x 29), 18440#(<= main_x 30), 18441#(<= main_x 31), 18442#(<= main_x 32), 18443#(<= main_x 33), 18444#(<= main_x 34), 18445#(<= main_x 35), 18446#(<= main_x 36), 18447#(<= main_x 37), 18448#(<= main_x 38), 18449#(<= main_x 39), 18450#(<= main_x 40), 18451#(<= main_x 41), 18452#(<= main_x 42), 18453#(<= main_x 43), 18454#(<= main_x 44), 18455#(<= main_x 45), 18456#(<= main_x 46), 18457#(<= main_x 47), 18458#(<= main_x 48), 18459#(<= main_x 49), 18460#(<= main_x 50), 18461#(<= main_x 51), 18462#(<= main_x 52), 18463#(<= main_x 53), 18464#(<= main_x 54), 18465#(<= main_x 55), 18466#(<= main_x 56), 18467#(<= main_x 57), 18468#(<= main_x 58), 18469#(<= main_x 59), 18470#(<= main_x 60), 18471#(<= main_x 61), 18472#(<= main_x 62), 18473#(<= main_x 63), 18474#(<= main_x 64), 18475#(<= main_x 65), 18476#(<= main_x 66), 18477#(<= main_x 67), 18478#(<= main_x 68), 18479#(<= main_x 69), 18480#(<= main_x 70), 18481#(<= main_x 71), 18482#(<= main_x 72), 18483#(<= main_x 73), 18484#(<= main_x 74), 18485#(<= main_x 75), 18486#(<= main_x 76), 18487#(<= main_x 77), 18488#(<= main_x 78), 18489#(<= main_x 79), 18490#(<= main_x 80), 18491#(<= main_x 81), 18408#true, 18409#false, 18410#(<= main_x 0), 18411#(<= main_x 1), 18412#(<= main_x 2), 18413#(<= main_x 3), 18414#(<= main_x 4), 18415#(<= main_x 5), 18416#(<= main_x 6), 18417#(<= main_x 7), 18418#(<= main_x 8), 18419#(<= main_x 9), 18420#(<= main_x 10), 18421#(<= main_x 11), 18422#(<= main_x 12), 18423#(<= main_x 13), 18424#(<= main_x 14), 18425#(<= main_x 15), 18426#(<= main_x 16), 18427#(<= main_x 17), 18428#(<= main_x 18), 18429#(<= main_x 19), 18430#(<= main_x 20), 18431#(<= main_x 21)] [2018-07-23 13:55:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:55:03,118 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:55:03,118 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:55:03,119 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 84 states. [2018-07-23 13:55:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:03,173 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-07-23 13:55:03,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:55:03,173 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 84 [2018-07-23 13:55:03,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:03,174 INFO L225 Difference]: With dead ends: 88 [2018-07-23 13:55:03,174 INFO L226 Difference]: Without dead ends: 86 [2018-07-23 13:55:03,174 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:55:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-23 13:55:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-07-23 13:55:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-23 13:55:03,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-07-23 13:55:03,177 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 84 [2018-07-23 13:55:03,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:03,177 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-07-23 13:55:03,178 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:55:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-07-23 13:55:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 13:55:03,178 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:03,178 INFO L357 BasicCegarLoop]: trace histogram [82, 1, 1, 1] [2018-07-23 13:55:03,179 INFO L414 AbstractCegarLoop]: === Iteration 83 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:03,179 INFO L82 PathProgramCache]: Analyzing trace with hash -424691680, now seen corresponding path program 82 times [2018-07-23 13:55:03,179 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,436 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:03,436 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-07-23 13:55:03,436 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,437 INFO L185 omatonBuilderFactory]: Interpolants [18840#true, 18841#false, 18842#(<= main_x 0), 18843#(<= main_x 1), 18844#(<= main_x 2), 18845#(<= main_x 3), 18846#(<= main_x 4), 18847#(<= main_x 5), 18848#(<= main_x 6), 18849#(<= main_x 7), 18850#(<= main_x 8), 18851#(<= main_x 9), 18852#(<= main_x 10), 18853#(<= main_x 11), 18854#(<= main_x 12), 18855#(<= main_x 13), 18856#(<= main_x 14), 18857#(<= main_x 15), 18858#(<= main_x 16), 18859#(<= main_x 17), 18860#(<= main_x 18), 18861#(<= main_x 19), 18862#(<= main_x 20), 18863#(<= main_x 21), 18864#(<= main_x 22), 18865#(<= main_x 23), 18866#(<= main_x 24), 18867#(<= main_x 25), 18868#(<= main_x 26), 18869#(<= main_x 27), 18870#(<= main_x 28), 18871#(<= main_x 29), 18872#(<= main_x 30), 18873#(<= main_x 31), 18874#(<= main_x 32), 18875#(<= main_x 33), 18876#(<= main_x 34), 18877#(<= main_x 35), 18878#(<= main_x 36), 18879#(<= main_x 37), 18880#(<= main_x 38), 18881#(<= main_x 39), 18882#(<= main_x 40), 18883#(<= main_x 41), 18884#(<= main_x 42), 18885#(<= main_x 43), 18886#(<= main_x 44), 18887#(<= main_x 45), 18888#(<= main_x 46), 18889#(<= main_x 47), 18890#(<= main_x 48), 18891#(<= main_x 49), 18892#(<= main_x 50), 18893#(<= main_x 51), 18894#(<= main_x 52), 18895#(<= main_x 53), 18896#(<= main_x 54), 18897#(<= main_x 55), 18898#(<= main_x 56), 18899#(<= main_x 57), 18900#(<= main_x 58), 18901#(<= main_x 59), 18902#(<= main_x 60), 18903#(<= main_x 61), 18904#(<= main_x 62), 18905#(<= main_x 63), 18906#(<= main_x 64), 18907#(<= main_x 65), 18908#(<= main_x 66), 18909#(<= main_x 67), 18910#(<= main_x 68), 18911#(<= main_x 69), 18912#(<= main_x 70), 18913#(<= main_x 71), 18914#(<= main_x 72), 18915#(<= main_x 73), 18916#(<= main_x 74), 18917#(<= main_x 75), 18918#(<= main_x 76), 18919#(<= main_x 77), 18920#(<= main_x 78), 18921#(<= main_x 79), 18922#(<= main_x 80), 18923#(<= main_x 81), 18924#(<= main_x 82)] [2018-07-23 13:55:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,437 INFO L450 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-07-23 13:55:03,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-07-23 13:55:03,439 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:55:03,439 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 85 states. [2018-07-23 13:55:03,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:03,508 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-07-23 13:55:03,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-07-23 13:55:03,508 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 85 [2018-07-23 13:55:03,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:03,509 INFO L225 Difference]: With dead ends: 89 [2018-07-23 13:55:03,509 INFO L226 Difference]: Without dead ends: 87 [2018-07-23 13:55:03,509 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:55:03,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-07-23 13:55:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-07-23 13:55:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-07-23 13:55:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-07-23 13:55:03,512 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 85 [2018-07-23 13:55:03,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:03,512 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-07-23 13:55:03,513 INFO L472 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-07-23 13:55:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-07-23 13:55:03,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-23 13:55:03,513 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:03,514 INFO L357 BasicCegarLoop]: trace histogram [83, 1, 1, 1] [2018-07-23 13:55:03,514 INFO L414 AbstractCegarLoop]: === Iteration 84 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:03,514 INFO L82 PathProgramCache]: Analyzing trace with hash -280544058, now seen corresponding path program 83 times [2018-07-23 13:55:03,514 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:03,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,798 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:03,799 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:55:03,799 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,800 INFO L185 omatonBuilderFactory]: Interpolants [19328#(<= main_x 49), 19329#(<= main_x 50), 19330#(<= main_x 51), 19331#(<= main_x 52), 19332#(<= main_x 53), 19333#(<= main_x 54), 19334#(<= main_x 55), 19335#(<= main_x 56), 19336#(<= main_x 57), 19337#(<= main_x 58), 19338#(<= main_x 59), 19339#(<= main_x 60), 19340#(<= main_x 61), 19341#(<= main_x 62), 19342#(<= main_x 63), 19343#(<= main_x 64), 19344#(<= main_x 65), 19345#(<= main_x 66), 19346#(<= main_x 67), 19347#(<= main_x 68), 19348#(<= main_x 69), 19349#(<= main_x 70), 19350#(<= main_x 71), 19351#(<= main_x 72), 19352#(<= main_x 73), 19353#(<= main_x 74), 19354#(<= main_x 75), 19355#(<= main_x 76), 19356#(<= main_x 77), 19357#(<= main_x 78), 19358#(<= main_x 79), 19359#(<= main_x 80), 19360#(<= main_x 81), 19361#(<= main_x 82), 19362#(<= main_x 83), 19277#true, 19278#false, 19279#(<= main_x 0), 19280#(<= main_x 1), 19281#(<= main_x 2), 19282#(<= main_x 3), 19283#(<= main_x 4), 19284#(<= main_x 5), 19285#(<= main_x 6), 19286#(<= main_x 7), 19287#(<= main_x 8), 19288#(<= main_x 9), 19289#(<= main_x 10), 19290#(<= main_x 11), 19291#(<= main_x 12), 19292#(<= main_x 13), 19293#(<= main_x 14), 19294#(<= main_x 15), 19295#(<= main_x 16), 19296#(<= main_x 17), 19297#(<= main_x 18), 19298#(<= main_x 19), 19299#(<= main_x 20), 19300#(<= main_x 21), 19301#(<= main_x 22), 19302#(<= main_x 23), 19303#(<= main_x 24), 19304#(<= main_x 25), 19305#(<= main_x 26), 19306#(<= main_x 27), 19307#(<= main_x 28), 19308#(<= main_x 29), 19309#(<= main_x 30), 19310#(<= main_x 31), 19311#(<= main_x 32), 19312#(<= main_x 33), 19313#(<= main_x 34), 19314#(<= main_x 35), 19315#(<= main_x 36), 19316#(<= main_x 37), 19317#(<= main_x 38), 19318#(<= main_x 39), 19319#(<= main_x 40), 19320#(<= main_x 41), 19321#(<= main_x 42), 19322#(<= main_x 43), 19323#(<= main_x 44), 19324#(<= main_x 45), 19325#(<= main_x 46), 19326#(<= main_x 47), 19327#(<= main_x 48)] [2018-07-23 13:55:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,800 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:55:03,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:55:03,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:55:03,802 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 86 states. [2018-07-23 13:55:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:03,844 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2018-07-23 13:55:03,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:55:03,845 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 86 [2018-07-23 13:55:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:03,849 INFO L225 Difference]: With dead ends: 90 [2018-07-23 13:55:03,850 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:55:03,850 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:55:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:55:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-07-23 13:55:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 13:55:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-07-23 13:55:03,853 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 86 [2018-07-23 13:55:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:03,854 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-07-23 13:55:03,854 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:55:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-07-23 13:55:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 13:55:03,854 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:03,854 INFO L357 BasicCegarLoop]: trace histogram [84, 1, 1, 1] [2018-07-23 13:55:03,855 INFO L414 AbstractCegarLoop]: === Iteration 85 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:03,855 INFO L82 PathProgramCache]: Analyzing trace with hash -106935072, now seen corresponding path program 84 times [2018-07-23 13:55:03,855 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,178 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:04,178 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-07-23 13:55:04,178 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,179 INFO L185 omatonBuilderFactory]: Interpolants [19719#true, 19720#false, 19721#(<= main_x 0), 19722#(<= main_x 1), 19723#(<= main_x 2), 19724#(<= main_x 3), 19725#(<= main_x 4), 19726#(<= main_x 5), 19727#(<= main_x 6), 19728#(<= main_x 7), 19729#(<= main_x 8), 19730#(<= main_x 9), 19731#(<= main_x 10), 19732#(<= main_x 11), 19733#(<= main_x 12), 19734#(<= main_x 13), 19735#(<= main_x 14), 19736#(<= main_x 15), 19737#(<= main_x 16), 19738#(<= main_x 17), 19739#(<= main_x 18), 19740#(<= main_x 19), 19741#(<= main_x 20), 19742#(<= main_x 21), 19743#(<= main_x 22), 19744#(<= main_x 23), 19745#(<= main_x 24), 19746#(<= main_x 25), 19747#(<= main_x 26), 19748#(<= main_x 27), 19749#(<= main_x 28), 19750#(<= main_x 29), 19751#(<= main_x 30), 19752#(<= main_x 31), 19753#(<= main_x 32), 19754#(<= main_x 33), 19755#(<= main_x 34), 19756#(<= main_x 35), 19757#(<= main_x 36), 19758#(<= main_x 37), 19759#(<= main_x 38), 19760#(<= main_x 39), 19761#(<= main_x 40), 19762#(<= main_x 41), 19763#(<= main_x 42), 19764#(<= main_x 43), 19765#(<= main_x 44), 19766#(<= main_x 45), 19767#(<= main_x 46), 19768#(<= main_x 47), 19769#(<= main_x 48), 19770#(<= main_x 49), 19771#(<= main_x 50), 19772#(<= main_x 51), 19773#(<= main_x 52), 19774#(<= main_x 53), 19775#(<= main_x 54), 19776#(<= main_x 55), 19777#(<= main_x 56), 19778#(<= main_x 57), 19779#(<= main_x 58), 19780#(<= main_x 59), 19781#(<= main_x 60), 19782#(<= main_x 61), 19783#(<= main_x 62), 19784#(<= main_x 63), 19785#(<= main_x 64), 19786#(<= main_x 65), 19787#(<= main_x 66), 19788#(<= main_x 67), 19789#(<= main_x 68), 19790#(<= main_x 69), 19791#(<= main_x 70), 19792#(<= main_x 71), 19793#(<= main_x 72), 19794#(<= main_x 73), 19795#(<= main_x 74), 19796#(<= main_x 75), 19797#(<= main_x 76), 19798#(<= main_x 77), 19799#(<= main_x 78), 19800#(<= main_x 79), 19801#(<= main_x 80), 19802#(<= main_x 81), 19803#(<= main_x 82), 19804#(<= main_x 83), 19805#(<= main_x 84)] [2018-07-23 13:55:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,180 INFO L450 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-07-23 13:55:04,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-07-23 13:55:04,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:55:04,181 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 87 states. [2018-07-23 13:55:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:04,282 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-07-23 13:55:04,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-07-23 13:55:04,282 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 87 [2018-07-23 13:55:04,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:04,283 INFO L225 Difference]: With dead ends: 91 [2018-07-23 13:55:04,283 INFO L226 Difference]: Without dead ends: 89 [2018-07-23 13:55:04,284 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:55:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-07-23 13:55:04,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-07-23 13:55:04,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-23 13:55:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-07-23 13:55:04,286 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 87 [2018-07-23 13:55:04,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:04,287 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-07-23 13:55:04,287 INFO L472 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-07-23 13:55:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-07-23 13:55:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 13:55:04,289 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:04,289 INFO L357 BasicCegarLoop]: trace histogram [85, 1, 1, 1] [2018-07-23 13:55:04,289 INFO L414 AbstractCegarLoop]: === Iteration 86 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:04,289 INFO L82 PathProgramCache]: Analyzing trace with hash 979976198, now seen corresponding path program 85 times [2018-07-23 13:55:04,289 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:04,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,580 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:04,580 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:55:04,580 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,580 INFO L185 omatonBuilderFactory]: Interpolants [20224#(<= main_x 56), 20225#(<= main_x 57), 20226#(<= main_x 58), 20227#(<= main_x 59), 20228#(<= main_x 60), 20229#(<= main_x 61), 20230#(<= main_x 62), 20231#(<= main_x 63), 20232#(<= main_x 64), 20233#(<= main_x 65), 20234#(<= main_x 66), 20235#(<= main_x 67), 20236#(<= main_x 68), 20237#(<= main_x 69), 20238#(<= main_x 70), 20239#(<= main_x 71), 20240#(<= main_x 72), 20241#(<= main_x 73), 20242#(<= main_x 74), 20243#(<= main_x 75), 20244#(<= main_x 76), 20245#(<= main_x 77), 20246#(<= main_x 78), 20247#(<= main_x 79), 20248#(<= main_x 80), 20249#(<= main_x 81), 20250#(<= main_x 82), 20251#(<= main_x 83), 20252#(<= main_x 84), 20253#(<= main_x 85), 20166#true, 20167#false, 20168#(<= main_x 0), 20169#(<= main_x 1), 20170#(<= main_x 2), 20171#(<= main_x 3), 20172#(<= main_x 4), 20173#(<= main_x 5), 20174#(<= main_x 6), 20175#(<= main_x 7), 20176#(<= main_x 8), 20177#(<= main_x 9), 20178#(<= main_x 10), 20179#(<= main_x 11), 20180#(<= main_x 12), 20181#(<= main_x 13), 20182#(<= main_x 14), 20183#(<= main_x 15), 20184#(<= main_x 16), 20185#(<= main_x 17), 20186#(<= main_x 18), 20187#(<= main_x 19), 20188#(<= main_x 20), 20189#(<= main_x 21), 20190#(<= main_x 22), 20191#(<= main_x 23), 20192#(<= main_x 24), 20193#(<= main_x 25), 20194#(<= main_x 26), 20195#(<= main_x 27), 20196#(<= main_x 28), 20197#(<= main_x 29), 20198#(<= main_x 30), 20199#(<= main_x 31), 20200#(<= main_x 32), 20201#(<= main_x 33), 20202#(<= main_x 34), 20203#(<= main_x 35), 20204#(<= main_x 36), 20205#(<= main_x 37), 20206#(<= main_x 38), 20207#(<= main_x 39), 20208#(<= main_x 40), 20209#(<= main_x 41), 20210#(<= main_x 42), 20211#(<= main_x 43), 20212#(<= main_x 44), 20213#(<= main_x 45), 20214#(<= main_x 46), 20215#(<= main_x 47), 20216#(<= main_x 48), 20217#(<= main_x 49), 20218#(<= main_x 50), 20219#(<= main_x 51), 20220#(<= main_x 52), 20221#(<= main_x 53), 20222#(<= main_x 54), 20223#(<= main_x 55)] [2018-07-23 13:55:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,581 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:55:04,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:55:04,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:55:04,582 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 88 states. [2018-07-23 13:55:04,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:04,617 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-07-23 13:55:04,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:55:04,617 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 88 [2018-07-23 13:55:04,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:04,618 INFO L225 Difference]: With dead ends: 92 [2018-07-23 13:55:04,618 INFO L226 Difference]: Without dead ends: 90 [2018-07-23 13:55:04,619 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:55:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-07-23 13:55:04,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-07-23 13:55:04,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 13:55:04,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-07-23 13:55:04,622 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 88 [2018-07-23 13:55:04,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:04,622 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-07-23 13:55:04,622 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:55:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-07-23 13:55:04,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-23 13:55:04,623 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:04,623 INFO L357 BasicCegarLoop]: trace histogram [86, 1, 1, 1] [2018-07-23 13:55:04,623 INFO L414 AbstractCegarLoop]: === Iteration 87 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:04,623 INFO L82 PathProgramCache]: Analyzing trace with hash 314487200, now seen corresponding path program 86 times [2018-07-23 13:55:04,624 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,966 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:04,967 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-07-23 13:55:04,967 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,967 INFO L185 omatonBuilderFactory]: Interpolants [20618#true, 20619#false, 20620#(<= main_x 0), 20621#(<= main_x 1), 20622#(<= main_x 2), 20623#(<= main_x 3), 20624#(<= main_x 4), 20625#(<= main_x 5), 20626#(<= main_x 6), 20627#(<= main_x 7), 20628#(<= main_x 8), 20629#(<= main_x 9), 20630#(<= main_x 10), 20631#(<= main_x 11), 20632#(<= main_x 12), 20633#(<= main_x 13), 20634#(<= main_x 14), 20635#(<= main_x 15), 20636#(<= main_x 16), 20637#(<= main_x 17), 20638#(<= main_x 18), 20639#(<= main_x 19), 20640#(<= main_x 20), 20641#(<= main_x 21), 20642#(<= main_x 22), 20643#(<= main_x 23), 20644#(<= main_x 24), 20645#(<= main_x 25), 20646#(<= main_x 26), 20647#(<= main_x 27), 20648#(<= main_x 28), 20649#(<= main_x 29), 20650#(<= main_x 30), 20651#(<= main_x 31), 20652#(<= main_x 32), 20653#(<= main_x 33), 20654#(<= main_x 34), 20655#(<= main_x 35), 20656#(<= main_x 36), 20657#(<= main_x 37), 20658#(<= main_x 38), 20659#(<= main_x 39), 20660#(<= main_x 40), 20661#(<= main_x 41), 20662#(<= main_x 42), 20663#(<= main_x 43), 20664#(<= main_x 44), 20665#(<= main_x 45), 20666#(<= main_x 46), 20667#(<= main_x 47), 20668#(<= main_x 48), 20669#(<= main_x 49), 20670#(<= main_x 50), 20671#(<= main_x 51), 20672#(<= main_x 52), 20673#(<= main_x 53), 20674#(<= main_x 54), 20675#(<= main_x 55), 20676#(<= main_x 56), 20677#(<= main_x 57), 20678#(<= main_x 58), 20679#(<= main_x 59), 20680#(<= main_x 60), 20681#(<= main_x 61), 20682#(<= main_x 62), 20683#(<= main_x 63), 20684#(<= main_x 64), 20685#(<= main_x 65), 20686#(<= main_x 66), 20687#(<= main_x 67), 20688#(<= main_x 68), 20689#(<= main_x 69), 20690#(<= main_x 70), 20691#(<= main_x 71), 20692#(<= main_x 72), 20693#(<= main_x 73), 20694#(<= main_x 74), 20695#(<= main_x 75), 20696#(<= main_x 76), 20697#(<= main_x 77), 20698#(<= main_x 78), 20699#(<= main_x 79), 20700#(<= main_x 80), 20701#(<= main_x 81), 20702#(<= main_x 82), 20703#(<= main_x 83), 20704#(<= main_x 84), 20705#(<= main_x 85), 20706#(<= main_x 86)] [2018-07-23 13:55:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:04,968 INFO L450 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-07-23 13:55:04,969 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-07-23 13:55:04,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:55:04,970 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 89 states. [2018-07-23 13:55:05,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:05,048 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-07-23 13:55:05,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-07-23 13:55:05,048 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 89 [2018-07-23 13:55:05,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:05,049 INFO L225 Difference]: With dead ends: 93 [2018-07-23 13:55:05,049 INFO L226 Difference]: Without dead ends: 91 [2018-07-23 13:55:05,050 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:55:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-07-23 13:55:05,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-07-23 13:55:05,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-07-23 13:55:05,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2018-07-23 13:55:05,058 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 89 [2018-07-23 13:55:05,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:05,058 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2018-07-23 13:55:05,060 INFO L472 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-07-23 13:55:05,060 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-07-23 13:55:05,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 13:55:05,061 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:05,061 INFO L357 BasicCegarLoop]: trace histogram [87, 1, 1, 1] [2018-07-23 13:55:05,061 INFO L414 AbstractCegarLoop]: === Iteration 88 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:05,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1159164742, now seen corresponding path program 87 times [2018-07-23 13:55:05,062 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,323 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:05,323 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:55:05,323 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:05,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,323 INFO L185 omatonBuilderFactory]: Interpolants [21120#(<= main_x 43), 21121#(<= main_x 44), 21122#(<= main_x 45), 21123#(<= main_x 46), 21124#(<= main_x 47), 21125#(<= main_x 48), 21126#(<= main_x 49), 21127#(<= main_x 50), 21128#(<= main_x 51), 21129#(<= main_x 52), 21130#(<= main_x 53), 21131#(<= main_x 54), 21132#(<= main_x 55), 21133#(<= main_x 56), 21134#(<= main_x 57), 21135#(<= main_x 58), 21136#(<= main_x 59), 21137#(<= main_x 60), 21138#(<= main_x 61), 21139#(<= main_x 62), 21140#(<= main_x 63), 21141#(<= main_x 64), 21142#(<= main_x 65), 21143#(<= main_x 66), 21144#(<= main_x 67), 21145#(<= main_x 68), 21146#(<= main_x 69), 21147#(<= main_x 70), 21148#(<= main_x 71), 21149#(<= main_x 72), 21150#(<= main_x 73), 21151#(<= main_x 74), 21152#(<= main_x 75), 21153#(<= main_x 76), 21154#(<= main_x 77), 21155#(<= main_x 78), 21156#(<= main_x 79), 21157#(<= main_x 80), 21158#(<= main_x 81), 21159#(<= main_x 82), 21160#(<= main_x 83), 21161#(<= main_x 84), 21162#(<= main_x 85), 21163#(<= main_x 86), 21164#(<= main_x 87), 21075#true, 21076#false, 21077#(<= main_x 0), 21078#(<= main_x 1), 21079#(<= main_x 2), 21080#(<= main_x 3), 21081#(<= main_x 4), 21082#(<= main_x 5), 21083#(<= main_x 6), 21084#(<= main_x 7), 21085#(<= main_x 8), 21086#(<= main_x 9), 21087#(<= main_x 10), 21088#(<= main_x 11), 21089#(<= main_x 12), 21090#(<= main_x 13), 21091#(<= main_x 14), 21092#(<= main_x 15), 21093#(<= main_x 16), 21094#(<= main_x 17), 21095#(<= main_x 18), 21096#(<= main_x 19), 21097#(<= main_x 20), 21098#(<= main_x 21), 21099#(<= main_x 22), 21100#(<= main_x 23), 21101#(<= main_x 24), 21102#(<= main_x 25), 21103#(<= main_x 26), 21104#(<= main_x 27), 21105#(<= main_x 28), 21106#(<= main_x 29), 21107#(<= main_x 30), 21108#(<= main_x 31), 21109#(<= main_x 32), 21110#(<= main_x 33), 21111#(<= main_x 34), 21112#(<= main_x 35), 21113#(<= main_x 36), 21114#(<= main_x 37), 21115#(<= main_x 38), 21116#(<= main_x 39), 21117#(<= main_x 40), 21118#(<= main_x 41), 21119#(<= main_x 42)] [2018-07-23 13:55:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,324 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:55:05,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:55:05,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:55:05,325 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand 90 states. [2018-07-23 13:55:05,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:05,360 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-07-23 13:55:05,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:55:05,361 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 90 [2018-07-23 13:55:05,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:05,362 INFO L225 Difference]: With dead ends: 94 [2018-07-23 13:55:05,362 INFO L226 Difference]: Without dead ends: 92 [2018-07-23 13:55:05,362 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:55:05,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-07-23 13:55:05,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-07-23 13:55:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-07-23 13:55:05,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-07-23 13:55:05,366 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 90 [2018-07-23 13:55:05,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:05,367 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-07-23 13:55:05,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:55:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-07-23 13:55:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 13:55:05,367 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:05,368 INFO L357 BasicCegarLoop]: trace histogram [88, 1, 1, 1] [2018-07-23 13:55:05,368 INFO L414 AbstractCegarLoop]: === Iteration 89 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:05,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1574364768, now seen corresponding path program 88 times [2018-07-23 13:55:05,368 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,622 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:05,622 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-07-23 13:55:05,622 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,623 INFO L185 omatonBuilderFactory]: Interpolants [21537#true, 21538#false, 21539#(<= main_x 0), 21540#(<= main_x 1), 21541#(<= main_x 2), 21542#(<= main_x 3), 21543#(<= main_x 4), 21544#(<= main_x 5), 21545#(<= main_x 6), 21546#(<= main_x 7), 21547#(<= main_x 8), 21548#(<= main_x 9), 21549#(<= main_x 10), 21550#(<= main_x 11), 21551#(<= main_x 12), 21552#(<= main_x 13), 21553#(<= main_x 14), 21554#(<= main_x 15), 21555#(<= main_x 16), 21556#(<= main_x 17), 21557#(<= main_x 18), 21558#(<= main_x 19), 21559#(<= main_x 20), 21560#(<= main_x 21), 21561#(<= main_x 22), 21562#(<= main_x 23), 21563#(<= main_x 24), 21564#(<= main_x 25), 21565#(<= main_x 26), 21566#(<= main_x 27), 21567#(<= main_x 28), 21568#(<= main_x 29), 21569#(<= main_x 30), 21570#(<= main_x 31), 21571#(<= main_x 32), 21572#(<= main_x 33), 21573#(<= main_x 34), 21574#(<= main_x 35), 21575#(<= main_x 36), 21576#(<= main_x 37), 21577#(<= main_x 38), 21578#(<= main_x 39), 21579#(<= main_x 40), 21580#(<= main_x 41), 21581#(<= main_x 42), 21582#(<= main_x 43), 21583#(<= main_x 44), 21584#(<= main_x 45), 21585#(<= main_x 46), 21586#(<= main_x 47), 21587#(<= main_x 48), 21588#(<= main_x 49), 21589#(<= main_x 50), 21590#(<= main_x 51), 21591#(<= main_x 52), 21592#(<= main_x 53), 21593#(<= main_x 54), 21594#(<= main_x 55), 21595#(<= main_x 56), 21596#(<= main_x 57), 21597#(<= main_x 58), 21598#(<= main_x 59), 21599#(<= main_x 60), 21600#(<= main_x 61), 21601#(<= main_x 62), 21602#(<= main_x 63), 21603#(<= main_x 64), 21604#(<= main_x 65), 21605#(<= main_x 66), 21606#(<= main_x 67), 21607#(<= main_x 68), 21608#(<= main_x 69), 21609#(<= main_x 70), 21610#(<= main_x 71), 21611#(<= main_x 72), 21612#(<= main_x 73), 21613#(<= main_x 74), 21614#(<= main_x 75), 21615#(<= main_x 76), 21616#(<= main_x 77), 21617#(<= main_x 78), 21618#(<= main_x 79), 21619#(<= main_x 80), 21620#(<= main_x 81), 21621#(<= main_x 82), 21622#(<= main_x 83), 21623#(<= main_x 84), 21624#(<= main_x 85), 21625#(<= main_x 86), 21626#(<= main_x 87), 21627#(<= main_x 88)] [2018-07-23 13:55:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,623 INFO L450 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-07-23 13:55:05,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-07-23 13:55:05,625 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:55:05,625 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 91 states. [2018-07-23 13:55:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:05,695 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-07-23 13:55:05,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-07-23 13:55:05,695 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 91 [2018-07-23 13:55:05,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:05,696 INFO L225 Difference]: With dead ends: 95 [2018-07-23 13:55:05,696 INFO L226 Difference]: Without dead ends: 93 [2018-07-23 13:55:05,697 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:55:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-07-23 13:55:05,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-07-23 13:55:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-07-23 13:55:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-07-23 13:55:05,701 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 91 [2018-07-23 13:55:05,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:05,701 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-07-23 13:55:05,701 INFO L472 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-07-23 13:55:05,701 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-07-23 13:55:05,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-23 13:55:05,702 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:05,702 INFO L357 BasicCegarLoop]: trace histogram [89, 1, 1, 1] [2018-07-23 13:55:05,702 INFO L414 AbstractCegarLoop]: === Iteration 90 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:05,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1560663686, now seen corresponding path program 89 times [2018-07-23 13:55:05,703 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,934 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:05,934 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:55:05,934 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,935 INFO L185 omatonBuilderFactory]: Interpolants [22016#(<= main_x 10), 22017#(<= main_x 11), 22018#(<= main_x 12), 22019#(<= main_x 13), 22020#(<= main_x 14), 22021#(<= main_x 15), 22022#(<= main_x 16), 22023#(<= main_x 17), 22024#(<= main_x 18), 22025#(<= main_x 19), 22026#(<= main_x 20), 22027#(<= main_x 21), 22028#(<= main_x 22), 22029#(<= main_x 23), 22030#(<= main_x 24), 22031#(<= main_x 25), 22032#(<= main_x 26), 22033#(<= main_x 27), 22034#(<= main_x 28), 22035#(<= main_x 29), 22036#(<= main_x 30), 22037#(<= main_x 31), 22038#(<= main_x 32), 22039#(<= main_x 33), 22040#(<= main_x 34), 22041#(<= main_x 35), 22042#(<= main_x 36), 22043#(<= main_x 37), 22044#(<= main_x 38), 22045#(<= main_x 39), 22046#(<= main_x 40), 22047#(<= main_x 41), 22048#(<= main_x 42), 22049#(<= main_x 43), 22050#(<= main_x 44), 22051#(<= main_x 45), 22052#(<= main_x 46), 22053#(<= main_x 47), 22054#(<= main_x 48), 22055#(<= main_x 49), 22056#(<= main_x 50), 22057#(<= main_x 51), 22058#(<= main_x 52), 22059#(<= main_x 53), 22060#(<= main_x 54), 22061#(<= main_x 55), 22062#(<= main_x 56), 22063#(<= main_x 57), 22064#(<= main_x 58), 22065#(<= main_x 59), 22066#(<= main_x 60), 22067#(<= main_x 61), 22068#(<= main_x 62), 22069#(<= main_x 63), 22070#(<= main_x 64), 22071#(<= main_x 65), 22072#(<= main_x 66), 22073#(<= main_x 67), 22074#(<= main_x 68), 22075#(<= main_x 69), 22076#(<= main_x 70), 22077#(<= main_x 71), 22078#(<= main_x 72), 22079#(<= main_x 73), 22080#(<= main_x 74), 22081#(<= main_x 75), 22082#(<= main_x 76), 22083#(<= main_x 77), 22084#(<= main_x 78), 22085#(<= main_x 79), 22086#(<= main_x 80), 22087#(<= main_x 81), 22088#(<= main_x 82), 22089#(<= main_x 83), 22090#(<= main_x 84), 22091#(<= main_x 85), 22092#(<= main_x 86), 22093#(<= main_x 87), 22094#(<= main_x 88), 22095#(<= main_x 89), 22004#true, 22005#false, 22006#(<= main_x 0), 22007#(<= main_x 1), 22008#(<= main_x 2), 22009#(<= main_x 3), 22010#(<= main_x 4), 22011#(<= main_x 5), 22012#(<= main_x 6), 22013#(<= main_x 7), 22014#(<= main_x 8), 22015#(<= main_x 9)] [2018-07-23 13:55:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:05,935 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:55:05,936 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:55:05,936 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:55:05,936 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 92 states. [2018-07-23 13:55:06,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:06,005 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-07-23 13:55:06,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:55:06,005 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 92 [2018-07-23 13:55:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:06,006 INFO L225 Difference]: With dead ends: 96 [2018-07-23 13:55:06,006 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:55:06,007 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:55:06,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:55:06,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-07-23 13:55:06,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-07-23 13:55:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-07-23 13:55:06,010 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 92 [2018-07-23 13:55:06,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:06,010 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-07-23 13:55:06,010 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:55:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-07-23 13:55:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 13:55:06,011 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:06,011 INFO L357 BasicCegarLoop]: trace histogram [90, 1, 1, 1] [2018-07-23 13:55:06,011 INFO L414 AbstractCegarLoop]: === Iteration 91 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:06,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1135930144, now seen corresponding path program 90 times [2018-07-23 13:55:06,012 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,304 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:06,304 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-07-23 13:55:06,305 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,305 INFO L185 omatonBuilderFactory]: Interpolants [22528#(<= main_x 50), 22529#(<= main_x 51), 22530#(<= main_x 52), 22531#(<= main_x 53), 22532#(<= main_x 54), 22533#(<= main_x 55), 22534#(<= main_x 56), 22535#(<= main_x 57), 22536#(<= main_x 58), 22537#(<= main_x 59), 22538#(<= main_x 60), 22539#(<= main_x 61), 22540#(<= main_x 62), 22541#(<= main_x 63), 22542#(<= main_x 64), 22543#(<= main_x 65), 22544#(<= main_x 66), 22545#(<= main_x 67), 22546#(<= main_x 68), 22547#(<= main_x 69), 22548#(<= main_x 70), 22549#(<= main_x 71), 22550#(<= main_x 72), 22551#(<= main_x 73), 22552#(<= main_x 74), 22553#(<= main_x 75), 22554#(<= main_x 76), 22555#(<= main_x 77), 22556#(<= main_x 78), 22557#(<= main_x 79), 22558#(<= main_x 80), 22559#(<= main_x 81), 22560#(<= main_x 82), 22561#(<= main_x 83), 22562#(<= main_x 84), 22563#(<= main_x 85), 22564#(<= main_x 86), 22565#(<= main_x 87), 22566#(<= main_x 88), 22567#(<= main_x 89), 22568#(<= main_x 90), 22476#true, 22477#false, 22478#(<= main_x 0), 22479#(<= main_x 1), 22480#(<= main_x 2), 22481#(<= main_x 3), 22482#(<= main_x 4), 22483#(<= main_x 5), 22484#(<= main_x 6), 22485#(<= main_x 7), 22486#(<= main_x 8), 22487#(<= main_x 9), 22488#(<= main_x 10), 22489#(<= main_x 11), 22490#(<= main_x 12), 22491#(<= main_x 13), 22492#(<= main_x 14), 22493#(<= main_x 15), 22494#(<= main_x 16), 22495#(<= main_x 17), 22496#(<= main_x 18), 22497#(<= main_x 19), 22498#(<= main_x 20), 22499#(<= main_x 21), 22500#(<= main_x 22), 22501#(<= main_x 23), 22502#(<= main_x 24), 22503#(<= main_x 25), 22504#(<= main_x 26), 22505#(<= main_x 27), 22506#(<= main_x 28), 22507#(<= main_x 29), 22508#(<= main_x 30), 22509#(<= main_x 31), 22510#(<= main_x 32), 22511#(<= main_x 33), 22512#(<= main_x 34), 22513#(<= main_x 35), 22514#(<= main_x 36), 22515#(<= main_x 37), 22516#(<= main_x 38), 22517#(<= main_x 39), 22518#(<= main_x 40), 22519#(<= main_x 41), 22520#(<= main_x 42), 22521#(<= main_x 43), 22522#(<= main_x 44), 22523#(<= main_x 45), 22524#(<= main_x 46), 22525#(<= main_x 47), 22526#(<= main_x 48), 22527#(<= main_x 49)] [2018-07-23 13:55:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,306 INFO L450 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-07-23 13:55:06,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-07-23 13:55:06,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:55:06,307 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 93 states. [2018-07-23 13:55:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:06,342 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-07-23 13:55:06,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-07-23 13:55:06,342 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 93 [2018-07-23 13:55:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:06,343 INFO L225 Difference]: With dead ends: 97 [2018-07-23 13:55:06,343 INFO L226 Difference]: Without dead ends: 95 [2018-07-23 13:55:06,343 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:55:06,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-07-23 13:55:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-07-23 13:55:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-07-23 13:55:06,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-07-23 13:55:06,350 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 93 [2018-07-23 13:55:06,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:06,350 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-07-23 13:55:06,350 INFO L472 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-07-23 13:55:06,350 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-07-23 13:55:06,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-23 13:55:06,351 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:06,351 INFO L357 BasicCegarLoop]: trace histogram [91, 1, 1, 1] [2018-07-23 13:55:06,351 INFO L414 AbstractCegarLoop]: === Iteration 92 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:06,352 INFO L82 PathProgramCache]: Analyzing trace with hash 854092230, now seen corresponding path program 91 times [2018-07-23 13:55:06,352 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,577 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:06,577 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:55:06,577 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,578 INFO L185 omatonBuilderFactory]: Interpolants [23040#(<= main_x 85), 23041#(<= main_x 86), 23042#(<= main_x 87), 23043#(<= main_x 88), 23044#(<= main_x 89), 23045#(<= main_x 90), 23046#(<= main_x 91), 22953#true, 22954#false, 22955#(<= main_x 0), 22956#(<= main_x 1), 22957#(<= main_x 2), 22958#(<= main_x 3), 22959#(<= main_x 4), 22960#(<= main_x 5), 22961#(<= main_x 6), 22962#(<= main_x 7), 22963#(<= main_x 8), 22964#(<= main_x 9), 22965#(<= main_x 10), 22966#(<= main_x 11), 22967#(<= main_x 12), 22968#(<= main_x 13), 22969#(<= main_x 14), 22970#(<= main_x 15), 22971#(<= main_x 16), 22972#(<= main_x 17), 22973#(<= main_x 18), 22974#(<= main_x 19), 22975#(<= main_x 20), 22976#(<= main_x 21), 22977#(<= main_x 22), 22978#(<= main_x 23), 22979#(<= main_x 24), 22980#(<= main_x 25), 22981#(<= main_x 26), 22982#(<= main_x 27), 22983#(<= main_x 28), 22984#(<= main_x 29), 22985#(<= main_x 30), 22986#(<= main_x 31), 22987#(<= main_x 32), 22988#(<= main_x 33), 22989#(<= main_x 34), 22990#(<= main_x 35), 22991#(<= main_x 36), 22992#(<= main_x 37), 22993#(<= main_x 38), 22994#(<= main_x 39), 22995#(<= main_x 40), 22996#(<= main_x 41), 22997#(<= main_x 42), 22998#(<= main_x 43), 22999#(<= main_x 44), 23000#(<= main_x 45), 23001#(<= main_x 46), 23002#(<= main_x 47), 23003#(<= main_x 48), 23004#(<= main_x 49), 23005#(<= main_x 50), 23006#(<= main_x 51), 23007#(<= main_x 52), 23008#(<= main_x 53), 23009#(<= main_x 54), 23010#(<= main_x 55), 23011#(<= main_x 56), 23012#(<= main_x 57), 23013#(<= main_x 58), 23014#(<= main_x 59), 23015#(<= main_x 60), 23016#(<= main_x 61), 23017#(<= main_x 62), 23018#(<= main_x 63), 23019#(<= main_x 64), 23020#(<= main_x 65), 23021#(<= main_x 66), 23022#(<= main_x 67), 23023#(<= main_x 68), 23024#(<= main_x 69), 23025#(<= main_x 70), 23026#(<= main_x 71), 23027#(<= main_x 72), 23028#(<= main_x 73), 23029#(<= main_x 74), 23030#(<= main_x 75), 23031#(<= main_x 76), 23032#(<= main_x 77), 23033#(<= main_x 78), 23034#(<= main_x 79), 23035#(<= main_x 80), 23036#(<= main_x 81), 23037#(<= main_x 82), 23038#(<= main_x 83), 23039#(<= main_x 84)] [2018-07-23 13:55:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,578 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:55:06,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:55:06,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:55:06,580 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 94 states. [2018-07-23 13:55:06,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:06,635 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2018-07-23 13:55:06,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:55:06,635 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 94 [2018-07-23 13:55:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:06,635 INFO L225 Difference]: With dead ends: 98 [2018-07-23 13:55:06,636 INFO L226 Difference]: Without dead ends: 96 [2018-07-23 13:55:06,636 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:55:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-23 13:55:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-07-23 13:55:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-07-23 13:55:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-07-23 13:55:06,640 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 94 [2018-07-23 13:55:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:06,640 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-07-23 13:55:06,640 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:55:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-07-23 13:55:06,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 13:55:06,641 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:06,641 INFO L357 BasicCegarLoop]: trace histogram [92, 1, 1, 1] [2018-07-23 13:55:06,641 INFO L414 AbstractCegarLoop]: === Iteration 93 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:06,641 INFO L82 PathProgramCache]: Analyzing trace with hash 707051488, now seen corresponding path program 92 times [2018-07-23 13:55:06,642 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,961 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:06,962 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-07-23 13:55:06,962 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,962 INFO L185 omatonBuilderFactory]: Interpolants [23435#true, 23436#false, 23437#(<= main_x 0), 23438#(<= main_x 1), 23439#(<= main_x 2), 23440#(<= main_x 3), 23441#(<= main_x 4), 23442#(<= main_x 5), 23443#(<= main_x 6), 23444#(<= main_x 7), 23445#(<= main_x 8), 23446#(<= main_x 9), 23447#(<= main_x 10), 23448#(<= main_x 11), 23449#(<= main_x 12), 23450#(<= main_x 13), 23451#(<= main_x 14), 23452#(<= main_x 15), 23453#(<= main_x 16), 23454#(<= main_x 17), 23455#(<= main_x 18), 23456#(<= main_x 19), 23457#(<= main_x 20), 23458#(<= main_x 21), 23459#(<= main_x 22), 23460#(<= main_x 23), 23461#(<= main_x 24), 23462#(<= main_x 25), 23463#(<= main_x 26), 23464#(<= main_x 27), 23465#(<= main_x 28), 23466#(<= main_x 29), 23467#(<= main_x 30), 23468#(<= main_x 31), 23469#(<= main_x 32), 23470#(<= main_x 33), 23471#(<= main_x 34), 23472#(<= main_x 35), 23473#(<= main_x 36), 23474#(<= main_x 37), 23475#(<= main_x 38), 23476#(<= main_x 39), 23477#(<= main_x 40), 23478#(<= main_x 41), 23479#(<= main_x 42), 23480#(<= main_x 43), 23481#(<= main_x 44), 23482#(<= main_x 45), 23483#(<= main_x 46), 23484#(<= main_x 47), 23485#(<= main_x 48), 23486#(<= main_x 49), 23487#(<= main_x 50), 23488#(<= main_x 51), 23489#(<= main_x 52), 23490#(<= main_x 53), 23491#(<= main_x 54), 23492#(<= main_x 55), 23493#(<= main_x 56), 23494#(<= main_x 57), 23495#(<= main_x 58), 23496#(<= main_x 59), 23497#(<= main_x 60), 23498#(<= main_x 61), 23499#(<= main_x 62), 23500#(<= main_x 63), 23501#(<= main_x 64), 23502#(<= main_x 65), 23503#(<= main_x 66), 23504#(<= main_x 67), 23505#(<= main_x 68), 23506#(<= main_x 69), 23507#(<= main_x 70), 23508#(<= main_x 71), 23509#(<= main_x 72), 23510#(<= main_x 73), 23511#(<= main_x 74), 23512#(<= main_x 75), 23513#(<= main_x 76), 23514#(<= main_x 77), 23515#(<= main_x 78), 23516#(<= main_x 79), 23517#(<= main_x 80), 23518#(<= main_x 81), 23519#(<= main_x 82), 23520#(<= main_x 83), 23521#(<= main_x 84), 23522#(<= main_x 85), 23523#(<= main_x 86), 23524#(<= main_x 87), 23525#(<= main_x 88), 23526#(<= main_x 89), 23527#(<= main_x 90), 23528#(<= main_x 91), 23529#(<= main_x 92)] [2018-07-23 13:55:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:06,963 INFO L450 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-07-23 13:55:06,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-07-23 13:55:06,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:55:06,965 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 95 states. [2018-07-23 13:55:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:07,054 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-07-23 13:55:07,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-07-23 13:55:07,055 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 95 [2018-07-23 13:55:07,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:07,056 INFO L225 Difference]: With dead ends: 99 [2018-07-23 13:55:07,056 INFO L226 Difference]: Without dead ends: 97 [2018-07-23 13:55:07,056 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:55:07,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-07-23 13:55:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-07-23 13:55:07,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-07-23 13:55:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-07-23 13:55:07,060 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 95 [2018-07-23 13:55:07,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:07,060 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-07-23 13:55:07,060 INFO L472 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-07-23 13:55:07,060 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-07-23 13:55:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-23 13:55:07,061 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:07,061 INFO L357 BasicCegarLoop]: trace histogram [93, 1, 1, 1] [2018-07-23 13:55:07,061 INFO L414 AbstractCegarLoop]: === Iteration 94 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:07,061 INFO L82 PathProgramCache]: Analyzing trace with hash 443755782, now seen corresponding path program 93 times [2018-07-23 13:55:07,061 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,340 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:07,340 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:55:07,340 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,341 INFO L185 omatonBuilderFactory]: Interpolants [23936#(<= main_x 12), 23937#(<= main_x 13), 23938#(<= main_x 14), 23939#(<= main_x 15), 23940#(<= main_x 16), 23941#(<= main_x 17), 23942#(<= main_x 18), 23943#(<= main_x 19), 23944#(<= main_x 20), 23945#(<= main_x 21), 23946#(<= main_x 22), 23947#(<= main_x 23), 23948#(<= main_x 24), 23949#(<= main_x 25), 23950#(<= main_x 26), 23951#(<= main_x 27), 23952#(<= main_x 28), 23953#(<= main_x 29), 23954#(<= main_x 30), 23955#(<= main_x 31), 23956#(<= main_x 32), 23957#(<= main_x 33), 23958#(<= main_x 34), 23959#(<= main_x 35), 23960#(<= main_x 36), 23961#(<= main_x 37), 23962#(<= main_x 38), 23963#(<= main_x 39), 23964#(<= main_x 40), 23965#(<= main_x 41), 23966#(<= main_x 42), 23967#(<= main_x 43), 23968#(<= main_x 44), 23969#(<= main_x 45), 23970#(<= main_x 46), 23971#(<= main_x 47), 23972#(<= main_x 48), 23973#(<= main_x 49), 23974#(<= main_x 50), 23975#(<= main_x 51), 23976#(<= main_x 52), 23977#(<= main_x 53), 23978#(<= main_x 54), 23979#(<= main_x 55), 23980#(<= main_x 56), 23981#(<= main_x 57), 23982#(<= main_x 58), 23983#(<= main_x 59), 23984#(<= main_x 60), 23985#(<= main_x 61), 23986#(<= main_x 62), 23987#(<= main_x 63), 23988#(<= main_x 64), 23989#(<= main_x 65), 23990#(<= main_x 66), 23991#(<= main_x 67), 23992#(<= main_x 68), 23993#(<= main_x 69), 23994#(<= main_x 70), 23995#(<= main_x 71), 23996#(<= main_x 72), 23997#(<= main_x 73), 23998#(<= main_x 74), 23999#(<= main_x 75), 24000#(<= main_x 76), 24001#(<= main_x 77), 24002#(<= main_x 78), 24003#(<= main_x 79), 24004#(<= main_x 80), 24005#(<= main_x 81), 24006#(<= main_x 82), 24007#(<= main_x 83), 24008#(<= main_x 84), 24009#(<= main_x 85), 24010#(<= main_x 86), 24011#(<= main_x 87), 24012#(<= main_x 88), 24013#(<= main_x 89), 24014#(<= main_x 90), 24015#(<= main_x 91), 24016#(<= main_x 92), 24017#(<= main_x 93), 23922#true, 23923#false, 23924#(<= main_x 0), 23925#(<= main_x 1), 23926#(<= main_x 2), 23927#(<= main_x 3), 23928#(<= main_x 4), 23929#(<= main_x 5), 23930#(<= main_x 6), 23931#(<= main_x 7), 23932#(<= main_x 8), 23933#(<= main_x 9), 23934#(<= main_x 10), 23935#(<= main_x 11)] [2018-07-23 13:55:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,341 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:55:07,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:55:07,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:55:07,343 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 96 states. [2018-07-23 13:55:07,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:07,407 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-07-23 13:55:07,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:55:07,407 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 96 [2018-07-23 13:55:07,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:07,407 INFO L225 Difference]: With dead ends: 100 [2018-07-23 13:55:07,407 INFO L226 Difference]: Without dead ends: 98 [2018-07-23 13:55:07,408 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:55:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-07-23 13:55:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-07-23 13:55:07,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-07-23 13:55:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-07-23 13:55:07,411 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 96 [2018-07-23 13:55:07,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:07,411 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-07-23 13:55:07,411 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:55:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-07-23 13:55:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 13:55:07,412 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:07,412 INFO L357 BasicCegarLoop]: trace histogram [94, 1, 1, 1] [2018-07-23 13:55:07,412 INFO L414 AbstractCegarLoop]: === Iteration 95 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:07,412 INFO L82 PathProgramCache]: Analyzing trace with hash 871523488, now seen corresponding path program 94 times [2018-07-23 13:55:07,412 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:07,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,670 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:07,670 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-07-23 13:55:07,670 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,670 INFO L185 omatonBuilderFactory]: Interpolants [24414#true, 24415#false, 24416#(<= main_x 0), 24417#(<= main_x 1), 24418#(<= main_x 2), 24419#(<= main_x 3), 24420#(<= main_x 4), 24421#(<= main_x 5), 24422#(<= main_x 6), 24423#(<= main_x 7), 24424#(<= main_x 8), 24425#(<= main_x 9), 24426#(<= main_x 10), 24427#(<= main_x 11), 24428#(<= main_x 12), 24429#(<= main_x 13), 24430#(<= main_x 14), 24431#(<= main_x 15), 24432#(<= main_x 16), 24433#(<= main_x 17), 24434#(<= main_x 18), 24435#(<= main_x 19), 24436#(<= main_x 20), 24437#(<= main_x 21), 24438#(<= main_x 22), 24439#(<= main_x 23), 24440#(<= main_x 24), 24441#(<= main_x 25), 24442#(<= main_x 26), 24443#(<= main_x 27), 24444#(<= main_x 28), 24445#(<= main_x 29), 24446#(<= main_x 30), 24447#(<= main_x 31), 24448#(<= main_x 32), 24449#(<= main_x 33), 24450#(<= main_x 34), 24451#(<= main_x 35), 24452#(<= main_x 36), 24453#(<= main_x 37), 24454#(<= main_x 38), 24455#(<= main_x 39), 24456#(<= main_x 40), 24457#(<= main_x 41), 24458#(<= main_x 42), 24459#(<= main_x 43), 24460#(<= main_x 44), 24461#(<= main_x 45), 24462#(<= main_x 46), 24463#(<= main_x 47), 24464#(<= main_x 48), 24465#(<= main_x 49), 24466#(<= main_x 50), 24467#(<= main_x 51), 24468#(<= main_x 52), 24469#(<= main_x 53), 24470#(<= main_x 54), 24471#(<= main_x 55), 24472#(<= main_x 56), 24473#(<= main_x 57), 24474#(<= main_x 58), 24475#(<= main_x 59), 24476#(<= main_x 60), 24477#(<= main_x 61), 24478#(<= main_x 62), 24479#(<= main_x 63), 24480#(<= main_x 64), 24481#(<= main_x 65), 24482#(<= main_x 66), 24483#(<= main_x 67), 24484#(<= main_x 68), 24485#(<= main_x 69), 24486#(<= main_x 70), 24487#(<= main_x 71), 24488#(<= main_x 72), 24489#(<= main_x 73), 24490#(<= main_x 74), 24491#(<= main_x 75), 24492#(<= main_x 76), 24493#(<= main_x 77), 24494#(<= main_x 78), 24495#(<= main_x 79), 24496#(<= main_x 80), 24497#(<= main_x 81), 24498#(<= main_x 82), 24499#(<= main_x 83), 24500#(<= main_x 84), 24501#(<= main_x 85), 24502#(<= main_x 86), 24503#(<= main_x 87), 24504#(<= main_x 88), 24505#(<= main_x 89), 24506#(<= main_x 90), 24507#(<= main_x 91), 24508#(<= main_x 92), 24509#(<= main_x 93), 24510#(<= main_x 94)] [2018-07-23 13:55:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,671 INFO L450 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-07-23 13:55:07,672 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-07-23 13:55:07,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:55:07,672 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 97 states. [2018-07-23 13:55:07,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:07,718 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-07-23 13:55:07,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-07-23 13:55:07,718 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 97 [2018-07-23 13:55:07,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:07,718 INFO L225 Difference]: With dead ends: 101 [2018-07-23 13:55:07,718 INFO L226 Difference]: Without dead ends: 99 [2018-07-23 13:55:07,719 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:55:07,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-07-23 13:55:07,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-07-23 13:55:07,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-07-23 13:55:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2018-07-23 13:55:07,721 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 97 [2018-07-23 13:55:07,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:07,722 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2018-07-23 13:55:07,722 INFO L472 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-07-23 13:55:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2018-07-23 13:55:07,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-23 13:55:07,722 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:07,722 INFO L357 BasicCegarLoop]: trace histogram [95, 1, 1, 1] [2018-07-23 13:55:07,722 INFO L414 AbstractCegarLoop]: === Iteration 96 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:07,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1247420486, now seen corresponding path program 95 times [2018-07-23 13:55:07,723 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,941 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:07,941 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:55:07,942 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,942 INFO L185 omatonBuilderFactory]: Interpolants [24911#true, 24912#false, 24913#(<= main_x 0), 24914#(<= main_x 1), 24915#(<= main_x 2), 24916#(<= main_x 3), 24917#(<= main_x 4), 24918#(<= main_x 5), 24919#(<= main_x 6), 24920#(<= main_x 7), 24921#(<= main_x 8), 24922#(<= main_x 9), 24923#(<= main_x 10), 24924#(<= main_x 11), 24925#(<= main_x 12), 24926#(<= main_x 13), 24927#(<= main_x 14), 24928#(<= main_x 15), 24929#(<= main_x 16), 24930#(<= main_x 17), 24931#(<= main_x 18), 24932#(<= main_x 19), 24933#(<= main_x 20), 24934#(<= main_x 21), 24935#(<= main_x 22), 24936#(<= main_x 23), 24937#(<= main_x 24), 24938#(<= main_x 25), 24939#(<= main_x 26), 24940#(<= main_x 27), 24941#(<= main_x 28), 24942#(<= main_x 29), 24943#(<= main_x 30), 24944#(<= main_x 31), 24945#(<= main_x 32), 24946#(<= main_x 33), 24947#(<= main_x 34), 24948#(<= main_x 35), 24949#(<= main_x 36), 24950#(<= main_x 37), 24951#(<= main_x 38), 24952#(<= main_x 39), 24953#(<= main_x 40), 24954#(<= main_x 41), 24955#(<= main_x 42), 24956#(<= main_x 43), 24957#(<= main_x 44), 24958#(<= main_x 45), 24959#(<= main_x 46), 24960#(<= main_x 47), 24961#(<= main_x 48), 24962#(<= main_x 49), 24963#(<= main_x 50), 24964#(<= main_x 51), 24965#(<= main_x 52), 24966#(<= main_x 53), 24967#(<= main_x 54), 24968#(<= main_x 55), 24969#(<= main_x 56), 24970#(<= main_x 57), 24971#(<= main_x 58), 24972#(<= main_x 59), 24973#(<= main_x 60), 24974#(<= main_x 61), 24975#(<= main_x 62), 24976#(<= main_x 63), 24977#(<= main_x 64), 24978#(<= main_x 65), 24979#(<= main_x 66), 24980#(<= main_x 67), 24981#(<= main_x 68), 24982#(<= main_x 69), 24983#(<= main_x 70), 24984#(<= main_x 71), 24985#(<= main_x 72), 24986#(<= main_x 73), 24987#(<= main_x 74), 24988#(<= main_x 75), 24989#(<= main_x 76), 24990#(<= main_x 77), 24991#(<= main_x 78), 24992#(<= main_x 79), 24993#(<= main_x 80), 24994#(<= main_x 81), 24995#(<= main_x 82), 24996#(<= main_x 83), 24997#(<= main_x 84), 24998#(<= main_x 85), 24999#(<= main_x 86), 25000#(<= main_x 87), 25001#(<= main_x 88), 25002#(<= main_x 89), 25003#(<= main_x 90), 25004#(<= main_x 91), 25005#(<= main_x 92), 25006#(<= main_x 93), 25007#(<= main_x 94), 25008#(<= main_x 95)] [2018-07-23 13:55:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,942 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:55:07,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:55:07,944 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:55:07,944 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand 98 states. [2018-07-23 13:55:07,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:07,986 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2018-07-23 13:55:07,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:55:07,986 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 98 [2018-07-23 13:55:07,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:07,987 INFO L225 Difference]: With dead ends: 102 [2018-07-23 13:55:07,987 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:55:07,988 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:55:07,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:55:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-07-23 13:55:07,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-07-23 13:55:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-07-23 13:55:07,991 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 98 [2018-07-23 13:55:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:07,992 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-07-23 13:55:07,992 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:55:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-07-23 13:55:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-23 13:55:07,992 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:07,993 INFO L357 BasicCegarLoop]: trace histogram [96, 1, 1, 1] [2018-07-23 13:55:07,993 INFO L414 AbstractCegarLoop]: === Iteration 97 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:07,993 INFO L82 PathProgramCache]: Analyzing trace with hash 15325536, now seen corresponding path program 96 times [2018-07-23 13:55:07,993 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,218 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:08,218 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-07-23 13:55:08,218 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,219 INFO L185 omatonBuilderFactory]: Interpolants [25413#true, 25414#false, 25415#(<= main_x 0), 25416#(<= main_x 1), 25417#(<= main_x 2), 25418#(<= main_x 3), 25419#(<= main_x 4), 25420#(<= main_x 5), 25421#(<= main_x 6), 25422#(<= main_x 7), 25423#(<= main_x 8), 25424#(<= main_x 9), 25425#(<= main_x 10), 25426#(<= main_x 11), 25427#(<= main_x 12), 25428#(<= main_x 13), 25429#(<= main_x 14), 25430#(<= main_x 15), 25431#(<= main_x 16), 25432#(<= main_x 17), 25433#(<= main_x 18), 25434#(<= main_x 19), 25435#(<= main_x 20), 25436#(<= main_x 21), 25437#(<= main_x 22), 25438#(<= main_x 23), 25439#(<= main_x 24), 25440#(<= main_x 25), 25441#(<= main_x 26), 25442#(<= main_x 27), 25443#(<= main_x 28), 25444#(<= main_x 29), 25445#(<= main_x 30), 25446#(<= main_x 31), 25447#(<= main_x 32), 25448#(<= main_x 33), 25449#(<= main_x 34), 25450#(<= main_x 35), 25451#(<= main_x 36), 25452#(<= main_x 37), 25453#(<= main_x 38), 25454#(<= main_x 39), 25455#(<= main_x 40), 25456#(<= main_x 41), 25457#(<= main_x 42), 25458#(<= main_x 43), 25459#(<= main_x 44), 25460#(<= main_x 45), 25461#(<= main_x 46), 25462#(<= main_x 47), 25463#(<= main_x 48), 25464#(<= main_x 49), 25465#(<= main_x 50), 25466#(<= main_x 51), 25467#(<= main_x 52), 25468#(<= main_x 53), 25469#(<= main_x 54), 25470#(<= main_x 55), 25471#(<= main_x 56), 25472#(<= main_x 57), 25473#(<= main_x 58), 25474#(<= main_x 59), 25475#(<= main_x 60), 25476#(<= main_x 61), 25477#(<= main_x 62), 25478#(<= main_x 63), 25479#(<= main_x 64), 25480#(<= main_x 65), 25481#(<= main_x 66), 25482#(<= main_x 67), 25483#(<= main_x 68), 25484#(<= main_x 69), 25485#(<= main_x 70), 25486#(<= main_x 71), 25487#(<= main_x 72), 25488#(<= main_x 73), 25489#(<= main_x 74), 25490#(<= main_x 75), 25491#(<= main_x 76), 25492#(<= main_x 77), 25493#(<= main_x 78), 25494#(<= main_x 79), 25495#(<= main_x 80), 25496#(<= main_x 81), 25497#(<= main_x 82), 25498#(<= main_x 83), 25499#(<= main_x 84), 25500#(<= main_x 85), 25501#(<= main_x 86), 25502#(<= main_x 87), 25503#(<= main_x 88), 25504#(<= main_x 89), 25505#(<= main_x 90), 25506#(<= main_x 91), 25507#(<= main_x 92), 25508#(<= main_x 93), 25509#(<= main_x 94), 25510#(<= main_x 95), 25511#(<= main_x 96)] [2018-07-23 13:55:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,219 INFO L450 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-07-23 13:55:08,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-07-23 13:55:08,220 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:55:08,220 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 99 states. [2018-07-23 13:55:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:08,259 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-07-23 13:55:08,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-07-23 13:55:08,259 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 99 [2018-07-23 13:55:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:08,259 INFO L225 Difference]: With dead ends: 103 [2018-07-23 13:55:08,260 INFO L226 Difference]: Without dead ends: 101 [2018-07-23 13:55:08,260 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:55:08,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-07-23 13:55:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2018-07-23 13:55:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-07-23 13:55:08,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-07-23 13:55:08,262 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 99 [2018-07-23 13:55:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:08,263 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-07-23 13:55:08,263 INFO L472 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-07-23 13:55:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-07-23 13:55:08,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-23 13:55:08,263 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:08,263 INFO L357 BasicCegarLoop]: trace histogram [97, 1, 1, 1] [2018-07-23 13:55:08,263 INFO L414 AbstractCegarLoop]: === Iteration 98 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:08,264 INFO L82 PathProgramCache]: Analyzing trace with hash 475087750, now seen corresponding path program 97 times [2018-07-23 13:55:08,264 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,496 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:08,496 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:55:08,496 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:08,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,496 INFO L185 omatonBuilderFactory]: Interpolants [25920#true, 25921#false, 25922#(<= main_x 0), 25923#(<= main_x 1), 25924#(<= main_x 2), 25925#(<= main_x 3), 25926#(<= main_x 4), 25927#(<= main_x 5), 25928#(<= main_x 6), 25929#(<= main_x 7), 25930#(<= main_x 8), 25931#(<= main_x 9), 25932#(<= main_x 10), 25933#(<= main_x 11), 25934#(<= main_x 12), 25935#(<= main_x 13), 25936#(<= main_x 14), 25937#(<= main_x 15), 25938#(<= main_x 16), 25939#(<= main_x 17), 25940#(<= main_x 18), 25941#(<= main_x 19), 25942#(<= main_x 20), 25943#(<= main_x 21), 25944#(<= main_x 22), 25945#(<= main_x 23), 25946#(<= main_x 24), 25947#(<= main_x 25), 25948#(<= main_x 26), 25949#(<= main_x 27), 25950#(<= main_x 28), 25951#(<= main_x 29), 25952#(<= main_x 30), 25953#(<= main_x 31), 25954#(<= main_x 32), 25955#(<= main_x 33), 25956#(<= main_x 34), 25957#(<= main_x 35), 25958#(<= main_x 36), 25959#(<= main_x 37), 25960#(<= main_x 38), 25961#(<= main_x 39), 25962#(<= main_x 40), 25963#(<= main_x 41), 25964#(<= main_x 42), 25965#(<= main_x 43), 25966#(<= main_x 44), 25967#(<= main_x 45), 25968#(<= main_x 46), 25969#(<= main_x 47), 25970#(<= main_x 48), 25971#(<= main_x 49), 25972#(<= main_x 50), 25973#(<= main_x 51), 25974#(<= main_x 52), 25975#(<= main_x 53), 25976#(<= main_x 54), 25977#(<= main_x 55), 25978#(<= main_x 56), 25979#(<= main_x 57), 25980#(<= main_x 58), 25981#(<= main_x 59), 25982#(<= main_x 60), 25983#(<= main_x 61), 25984#(<= main_x 62), 25985#(<= main_x 63), 25986#(<= main_x 64), 25987#(<= main_x 65), 25988#(<= main_x 66), 25989#(<= main_x 67), 25990#(<= main_x 68), 25991#(<= main_x 69), 25992#(<= main_x 70), 25993#(<= main_x 71), 25994#(<= main_x 72), 25995#(<= main_x 73), 25996#(<= main_x 74), 25997#(<= main_x 75), 25998#(<= main_x 76), 25999#(<= main_x 77), 26000#(<= main_x 78), 26001#(<= main_x 79), 26002#(<= main_x 80), 26003#(<= main_x 81), 26004#(<= main_x 82), 26005#(<= main_x 83), 26006#(<= main_x 84), 26007#(<= main_x 85), 26008#(<= main_x 86), 26009#(<= main_x 87), 26010#(<= main_x 88), 26011#(<= main_x 89), 26012#(<= main_x 90), 26013#(<= main_x 91), 26014#(<= main_x 92), 26015#(<= main_x 93), 26016#(<= main_x 94), 26017#(<= main_x 95), 26018#(<= main_x 96), 26019#(<= main_x 97)] [2018-07-23 13:55:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,497 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:55:08,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:55:08,498 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:55:08,498 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 100 states. [2018-07-23 13:55:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:08,540 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-07-23 13:55:08,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:55:08,540 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 100 [2018-07-23 13:55:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:08,541 INFO L225 Difference]: With dead ends: 104 [2018-07-23 13:55:08,541 INFO L226 Difference]: Without dead ends: 102 [2018-07-23 13:55:08,542 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:55:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-07-23 13:55:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-07-23 13:55:08,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-07-23 13:55:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-07-23 13:55:08,545 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 100 [2018-07-23 13:55:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:08,545 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-07-23 13:55:08,546 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:55:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-07-23 13:55:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 13:55:08,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:08,546 INFO L357 BasicCegarLoop]: trace histogram [98, 1, 1, 1] [2018-07-23 13:55:08,546 INFO L414 AbstractCegarLoop]: === Iteration 99 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:08,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1842814496, now seen corresponding path program 98 times [2018-07-23 13:55:08,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,793 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:08,793 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-07-23 13:55:08,793 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,793 INFO L185 omatonBuilderFactory]: Interpolants [26432#true, 26433#false, 26434#(<= main_x 0), 26435#(<= main_x 1), 26436#(<= main_x 2), 26437#(<= main_x 3), 26438#(<= main_x 4), 26439#(<= main_x 5), 26440#(<= main_x 6), 26441#(<= main_x 7), 26442#(<= main_x 8), 26443#(<= main_x 9), 26444#(<= main_x 10), 26445#(<= main_x 11), 26446#(<= main_x 12), 26447#(<= main_x 13), 26448#(<= main_x 14), 26449#(<= main_x 15), 26450#(<= main_x 16), 26451#(<= main_x 17), 26452#(<= main_x 18), 26453#(<= main_x 19), 26454#(<= main_x 20), 26455#(<= main_x 21), 26456#(<= main_x 22), 26457#(<= main_x 23), 26458#(<= main_x 24), 26459#(<= main_x 25), 26460#(<= main_x 26), 26461#(<= main_x 27), 26462#(<= main_x 28), 26463#(<= main_x 29), 26464#(<= main_x 30), 26465#(<= main_x 31), 26466#(<= main_x 32), 26467#(<= main_x 33), 26468#(<= main_x 34), 26469#(<= main_x 35), 26470#(<= main_x 36), 26471#(<= main_x 37), 26472#(<= main_x 38), 26473#(<= main_x 39), 26474#(<= main_x 40), 26475#(<= main_x 41), 26476#(<= main_x 42), 26477#(<= main_x 43), 26478#(<= main_x 44), 26479#(<= main_x 45), 26480#(<= main_x 46), 26481#(<= main_x 47), 26482#(<= main_x 48), 26483#(<= main_x 49), 26484#(<= main_x 50), 26485#(<= main_x 51), 26486#(<= main_x 52), 26487#(<= main_x 53), 26488#(<= main_x 54), 26489#(<= main_x 55), 26490#(<= main_x 56), 26491#(<= main_x 57), 26492#(<= main_x 58), 26493#(<= main_x 59), 26494#(<= main_x 60), 26495#(<= main_x 61), 26496#(<= main_x 62), 26497#(<= main_x 63), 26498#(<= main_x 64), 26499#(<= main_x 65), 26500#(<= main_x 66), 26501#(<= main_x 67), 26502#(<= main_x 68), 26503#(<= main_x 69), 26504#(<= main_x 70), 26505#(<= main_x 71), 26506#(<= main_x 72), 26507#(<= main_x 73), 26508#(<= main_x 74), 26509#(<= main_x 75), 26510#(<= main_x 76), 26511#(<= main_x 77), 26512#(<= main_x 78), 26513#(<= main_x 79), 26514#(<= main_x 80), 26515#(<= main_x 81), 26516#(<= main_x 82), 26517#(<= main_x 83), 26518#(<= main_x 84), 26519#(<= main_x 85), 26520#(<= main_x 86), 26521#(<= main_x 87), 26522#(<= main_x 88), 26523#(<= main_x 89), 26524#(<= main_x 90), 26525#(<= main_x 91), 26526#(<= main_x 92), 26527#(<= main_x 93), 26528#(<= main_x 94), 26529#(<= main_x 95), 26530#(<= main_x 96), 26531#(<= main_x 97), 26532#(<= main_x 98)] [2018-07-23 13:55:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:08,794 INFO L450 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-07-23 13:55:08,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-07-23 13:55:08,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:55:08,795 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 101 states. [2018-07-23 13:55:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:08,840 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-07-23 13:55:08,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-07-23 13:55:08,840 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 101 [2018-07-23 13:55:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:08,840 INFO L225 Difference]: With dead ends: 105 [2018-07-23 13:55:08,840 INFO L226 Difference]: Without dead ends: 103 [2018-07-23 13:55:08,841 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:55:08,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-07-23 13:55:08,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-07-23 13:55:08,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-07-23 13:55:08,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2018-07-23 13:55:08,843 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 101 [2018-07-23 13:55:08,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:08,844 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2018-07-23 13:55:08,844 INFO L472 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-07-23 13:55:08,844 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-07-23 13:55:08,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 13:55:08,844 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:08,844 INFO L357 BasicCegarLoop]: trace histogram [99, 1, 1, 1] [2018-07-23 13:55:08,844 INFO L414 AbstractCegarLoop]: === Iteration 100 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:08,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1292670662, now seen corresponding path program 99 times [2018-07-23 13:55:08,845 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,129 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:09,129 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:55:09,130 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,130 INFO L185 omatonBuilderFactory]: Interpolants [26949#true, 26950#false, 26951#(<= main_x 0), 26952#(<= main_x 1), 26953#(<= main_x 2), 26954#(<= main_x 3), 26955#(<= main_x 4), 26956#(<= main_x 5), 26957#(<= main_x 6), 26958#(<= main_x 7), 26959#(<= main_x 8), 26960#(<= main_x 9), 26961#(<= main_x 10), 26962#(<= main_x 11), 26963#(<= main_x 12), 26964#(<= main_x 13), 26965#(<= main_x 14), 26966#(<= main_x 15), 26967#(<= main_x 16), 26968#(<= main_x 17), 26969#(<= main_x 18), 26970#(<= main_x 19), 26971#(<= main_x 20), 26972#(<= main_x 21), 26973#(<= main_x 22), 26974#(<= main_x 23), 26975#(<= main_x 24), 26976#(<= main_x 25), 26977#(<= main_x 26), 26978#(<= main_x 27), 26979#(<= main_x 28), 26980#(<= main_x 29), 26981#(<= main_x 30), 26982#(<= main_x 31), 26983#(<= main_x 32), 26984#(<= main_x 33), 26985#(<= main_x 34), 26986#(<= main_x 35), 26987#(<= main_x 36), 26988#(<= main_x 37), 26989#(<= main_x 38), 26990#(<= main_x 39), 26991#(<= main_x 40), 26992#(<= main_x 41), 26993#(<= main_x 42), 26994#(<= main_x 43), 26995#(<= main_x 44), 26996#(<= main_x 45), 26997#(<= main_x 46), 26998#(<= main_x 47), 26999#(<= main_x 48), 27000#(<= main_x 49), 27001#(<= main_x 50), 27002#(<= main_x 51), 27003#(<= main_x 52), 27004#(<= main_x 53), 27005#(<= main_x 54), 27006#(<= main_x 55), 27007#(<= main_x 56), 27008#(<= main_x 57), 27009#(<= main_x 58), 27010#(<= main_x 59), 27011#(<= main_x 60), 27012#(<= main_x 61), 27013#(<= main_x 62), 27014#(<= main_x 63), 27015#(<= main_x 64), 27016#(<= main_x 65), 27017#(<= main_x 66), 27018#(<= main_x 67), 27019#(<= main_x 68), 27020#(<= main_x 69), 27021#(<= main_x 70), 27022#(<= main_x 71), 27023#(<= main_x 72), 27024#(<= main_x 73), 27025#(<= main_x 74), 27026#(<= main_x 75), 27027#(<= main_x 76), 27028#(<= main_x 77), 27029#(<= main_x 78), 27030#(<= main_x 79), 27031#(<= main_x 80), 27032#(<= main_x 81), 27033#(<= main_x 82), 27034#(<= main_x 83), 27035#(<= main_x 84), 27036#(<= main_x 85), 27037#(<= main_x 86), 27038#(<= main_x 87), 27039#(<= main_x 88), 27040#(<= main_x 89), 27041#(<= main_x 90), 27042#(<= main_x 91), 27043#(<= main_x 92), 27044#(<= main_x 93), 27045#(<= main_x 94), 27046#(<= main_x 95), 27047#(<= main_x 96), 27048#(<= main_x 97), 27049#(<= main_x 98), 27050#(<= main_x 99)] [2018-07-23 13:55:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,131 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:55:09,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:55:09,132 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:55:09,133 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 102 states. [2018-07-23 13:55:09,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:09,192 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2018-07-23 13:55:09,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:55:09,192 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 102 [2018-07-23 13:55:09,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:09,193 INFO L225 Difference]: With dead ends: 106 [2018-07-23 13:55:09,193 INFO L226 Difference]: Without dead ends: 104 [2018-07-23 13:55:09,193 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:55:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-07-23 13:55:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-07-23 13:55:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-07-23 13:55:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-07-23 13:55:09,197 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 102 [2018-07-23 13:55:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:09,197 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-07-23 13:55:09,197 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:55:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-07-23 13:55:09,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-23 13:55:09,198 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:09,198 INFO L357 BasicCegarLoop]: trace histogram [100, 1, 1, 1] [2018-07-23 13:55:09,198 INFO L414 AbstractCegarLoop]: === Iteration 101 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:09,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1418080992, now seen corresponding path program 100 times [2018-07-23 13:55:09,198 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,469 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:09,470 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-07-23 13:55:09,470 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:09,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,470 INFO L185 omatonBuilderFactory]: Interpolants [27471#true, 27472#false, 27473#(<= main_x 0), 27474#(<= main_x 1), 27475#(<= main_x 2), 27476#(<= main_x 3), 27477#(<= main_x 4), 27478#(<= main_x 5), 27479#(<= main_x 6), 27480#(<= main_x 7), 27481#(<= main_x 8), 27482#(<= main_x 9), 27483#(<= main_x 10), 27484#(<= main_x 11), 27485#(<= main_x 12), 27486#(<= main_x 13), 27487#(<= main_x 14), 27488#(<= main_x 15), 27489#(<= main_x 16), 27490#(<= main_x 17), 27491#(<= main_x 18), 27492#(<= main_x 19), 27493#(<= main_x 20), 27494#(<= main_x 21), 27495#(<= main_x 22), 27496#(<= main_x 23), 27497#(<= main_x 24), 27498#(<= main_x 25), 27499#(<= main_x 26), 27500#(<= main_x 27), 27501#(<= main_x 28), 27502#(<= main_x 29), 27503#(<= main_x 30), 27504#(<= main_x 31), 27505#(<= main_x 32), 27506#(<= main_x 33), 27507#(<= main_x 34), 27508#(<= main_x 35), 27509#(<= main_x 36), 27510#(<= main_x 37), 27511#(<= main_x 38), 27512#(<= main_x 39), 27513#(<= main_x 40), 27514#(<= main_x 41), 27515#(<= main_x 42), 27516#(<= main_x 43), 27517#(<= main_x 44), 27518#(<= main_x 45), 27519#(<= main_x 46), 27520#(<= main_x 47), 27521#(<= main_x 48), 27522#(<= main_x 49), 27523#(<= main_x 50), 27524#(<= main_x 51), 27525#(<= main_x 52), 27526#(<= main_x 53), 27527#(<= main_x 54), 27528#(<= main_x 55), 27529#(<= main_x 56), 27530#(<= main_x 57), 27531#(<= main_x 58), 27532#(<= main_x 59), 27533#(<= main_x 60), 27534#(<= main_x 61), 27535#(<= main_x 62), 27536#(<= main_x 63), 27537#(<= main_x 64), 27538#(<= main_x 65), 27539#(<= main_x 66), 27540#(<= main_x 67), 27541#(<= main_x 68), 27542#(<= main_x 69), 27543#(<= main_x 70), 27544#(<= main_x 71), 27545#(<= main_x 72), 27546#(<= main_x 73), 27547#(<= main_x 74), 27548#(<= main_x 75), 27549#(<= main_x 76), 27550#(<= main_x 77), 27551#(<= main_x 78), 27552#(<= main_x 79), 27553#(<= main_x 80), 27554#(<= main_x 81), 27555#(<= main_x 82), 27556#(<= main_x 83), 27557#(<= main_x 84), 27558#(<= main_x 85), 27559#(<= main_x 86), 27560#(<= main_x 87), 27561#(<= main_x 88), 27562#(<= main_x 89), 27563#(<= main_x 90), 27564#(<= main_x 91), 27565#(<= main_x 92), 27566#(<= main_x 93), 27567#(<= main_x 94), 27568#(<= main_x 95), 27569#(<= main_x 96), 27570#(<= main_x 97), 27571#(<= main_x 98), 27572#(<= main_x 99), 27573#(<= main_x 100)] [2018-07-23 13:55:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,471 INFO L450 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-07-23 13:55:09,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-07-23 13:55:09,472 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:55:09,472 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 103 states. [2018-07-23 13:55:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:09,536 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-07-23 13:55:09,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-07-23 13:55:09,536 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 103 [2018-07-23 13:55:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:09,537 INFO L225 Difference]: With dead ends: 107 [2018-07-23 13:55:09,537 INFO L226 Difference]: Without dead ends: 105 [2018-07-23 13:55:09,538 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:55:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-07-23 13:55:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-07-23 13:55:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-07-23 13:55:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2018-07-23 13:55:09,541 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 103 [2018-07-23 13:55:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:09,542 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2018-07-23 13:55:09,542 INFO L472 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-07-23 13:55:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-07-23 13:55:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 13:55:09,543 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:09,543 INFO L357 BasicCegarLoop]: trace histogram [101, 1, 1, 1] [2018-07-23 13:55:09,543 INFO L414 AbstractCegarLoop]: === Iteration 102 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1010833926, now seen corresponding path program 101 times [2018-07-23 13:55:09,543 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,867 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:09,868 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:55:09,868 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,868 INFO L185 omatonBuilderFactory]: Interpolants [27998#true, 27999#false, 28000#(<= main_x 0), 28001#(<= main_x 1), 28002#(<= main_x 2), 28003#(<= main_x 3), 28004#(<= main_x 4), 28005#(<= main_x 5), 28006#(<= main_x 6), 28007#(<= main_x 7), 28008#(<= main_x 8), 28009#(<= main_x 9), 28010#(<= main_x 10), 28011#(<= main_x 11), 28012#(<= main_x 12), 28013#(<= main_x 13), 28014#(<= main_x 14), 28015#(<= main_x 15), 28016#(<= main_x 16), 28017#(<= main_x 17), 28018#(<= main_x 18), 28019#(<= main_x 19), 28020#(<= main_x 20), 28021#(<= main_x 21), 28022#(<= main_x 22), 28023#(<= main_x 23), 28024#(<= main_x 24), 28025#(<= main_x 25), 28026#(<= main_x 26), 28027#(<= main_x 27), 28028#(<= main_x 28), 28029#(<= main_x 29), 28030#(<= main_x 30), 28031#(<= main_x 31), 28032#(<= main_x 32), 28033#(<= main_x 33), 28034#(<= main_x 34), 28035#(<= main_x 35), 28036#(<= main_x 36), 28037#(<= main_x 37), 28038#(<= main_x 38), 28039#(<= main_x 39), 28040#(<= main_x 40), 28041#(<= main_x 41), 28042#(<= main_x 42), 28043#(<= main_x 43), 28044#(<= main_x 44), 28045#(<= main_x 45), 28046#(<= main_x 46), 28047#(<= main_x 47), 28048#(<= main_x 48), 28049#(<= main_x 49), 28050#(<= main_x 50), 28051#(<= main_x 51), 28052#(<= main_x 52), 28053#(<= main_x 53), 28054#(<= main_x 54), 28055#(<= main_x 55), 28056#(<= main_x 56), 28057#(<= main_x 57), 28058#(<= main_x 58), 28059#(<= main_x 59), 28060#(<= main_x 60), 28061#(<= main_x 61), 28062#(<= main_x 62), 28063#(<= main_x 63), 28064#(<= main_x 64), 28065#(<= main_x 65), 28066#(<= main_x 66), 28067#(<= main_x 67), 28068#(<= main_x 68), 28069#(<= main_x 69), 28070#(<= main_x 70), 28071#(<= main_x 71), 28072#(<= main_x 72), 28073#(<= main_x 73), 28074#(<= main_x 74), 28075#(<= main_x 75), 28076#(<= main_x 76), 28077#(<= main_x 77), 28078#(<= main_x 78), 28079#(<= main_x 79), 28080#(<= main_x 80), 28081#(<= main_x 81), 28082#(<= main_x 82), 28083#(<= main_x 83), 28084#(<= main_x 84), 28085#(<= main_x 85), 28086#(<= main_x 86), 28087#(<= main_x 87), 28088#(<= main_x 88), 28089#(<= main_x 89), 28090#(<= main_x 90), 28091#(<= main_x 91), 28092#(<= main_x 92), 28093#(<= main_x 93), 28094#(<= main_x 94), 28095#(<= main_x 95), 28096#(<= main_x 96), 28097#(<= main_x 97), 28098#(<= main_x 98), 28099#(<= main_x 99), 28100#(<= main_x 100), 28101#(<= main_x 101)] [2018-07-23 13:55:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:09,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:55:09,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:55:09,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:55:09,870 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 104 states. [2018-07-23 13:55:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:09,948 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-07-23 13:55:09,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:55:09,948 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 104 [2018-07-23 13:55:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:09,949 INFO L225 Difference]: With dead ends: 108 [2018-07-23 13:55:09,949 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:55:09,950 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:55:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:55:09,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-07-23 13:55:09,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-07-23 13:55:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-07-23 13:55:09,953 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 104 [2018-07-23 13:55:09,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:09,953 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-07-23 13:55:09,954 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:55:09,954 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-07-23 13:55:09,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 13:55:09,954 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:09,954 INFO L357 BasicCegarLoop]: trace histogram [102, 1, 1, 1] [2018-07-23 13:55:09,955 INFO L414 AbstractCegarLoop]: === Iteration 103 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:09,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1271076768, now seen corresponding path program 102 times [2018-07-23 13:55:09,955 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,219 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:10,220 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-07-23 13:55:10,220 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,220 INFO L185 omatonBuilderFactory]: Interpolants [28530#true, 28531#false, 28532#(<= main_x 0), 28533#(<= main_x 1), 28534#(<= main_x 2), 28535#(<= main_x 3), 28536#(<= main_x 4), 28537#(<= main_x 5), 28538#(<= main_x 6), 28539#(<= main_x 7), 28540#(<= main_x 8), 28541#(<= main_x 9), 28542#(<= main_x 10), 28543#(<= main_x 11), 28544#(<= main_x 12), 28545#(<= main_x 13), 28546#(<= main_x 14), 28547#(<= main_x 15), 28548#(<= main_x 16), 28549#(<= main_x 17), 28550#(<= main_x 18), 28551#(<= main_x 19), 28552#(<= main_x 20), 28553#(<= main_x 21), 28554#(<= main_x 22), 28555#(<= main_x 23), 28556#(<= main_x 24), 28557#(<= main_x 25), 28558#(<= main_x 26), 28559#(<= main_x 27), 28560#(<= main_x 28), 28561#(<= main_x 29), 28562#(<= main_x 30), 28563#(<= main_x 31), 28564#(<= main_x 32), 28565#(<= main_x 33), 28566#(<= main_x 34), 28567#(<= main_x 35), 28568#(<= main_x 36), 28569#(<= main_x 37), 28570#(<= main_x 38), 28571#(<= main_x 39), 28572#(<= main_x 40), 28573#(<= main_x 41), 28574#(<= main_x 42), 28575#(<= main_x 43), 28576#(<= main_x 44), 28577#(<= main_x 45), 28578#(<= main_x 46), 28579#(<= main_x 47), 28580#(<= main_x 48), 28581#(<= main_x 49), 28582#(<= main_x 50), 28583#(<= main_x 51), 28584#(<= main_x 52), 28585#(<= main_x 53), 28586#(<= main_x 54), 28587#(<= main_x 55), 28588#(<= main_x 56), 28589#(<= main_x 57), 28590#(<= main_x 58), 28591#(<= main_x 59), 28592#(<= main_x 60), 28593#(<= main_x 61), 28594#(<= main_x 62), 28595#(<= main_x 63), 28596#(<= main_x 64), 28597#(<= main_x 65), 28598#(<= main_x 66), 28599#(<= main_x 67), 28600#(<= main_x 68), 28601#(<= main_x 69), 28602#(<= main_x 70), 28603#(<= main_x 71), 28604#(<= main_x 72), 28605#(<= main_x 73), 28606#(<= main_x 74), 28607#(<= main_x 75), 28608#(<= main_x 76), 28609#(<= main_x 77), 28610#(<= main_x 78), 28611#(<= main_x 79), 28612#(<= main_x 80), 28613#(<= main_x 81), 28614#(<= main_x 82), 28615#(<= main_x 83), 28616#(<= main_x 84), 28617#(<= main_x 85), 28618#(<= main_x 86), 28619#(<= main_x 87), 28620#(<= main_x 88), 28621#(<= main_x 89), 28622#(<= main_x 90), 28623#(<= main_x 91), 28624#(<= main_x 92), 28625#(<= main_x 93), 28626#(<= main_x 94), 28627#(<= main_x 95), 28628#(<= main_x 96), 28629#(<= main_x 97), 28630#(<= main_x 98), 28631#(<= main_x 99), 28632#(<= main_x 100), 28633#(<= main_x 101), 28634#(<= main_x 102)] [2018-07-23 13:55:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,221 INFO L450 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-07-23 13:55:10,221 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-07-23 13:55:10,222 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:55:10,222 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 105 states. [2018-07-23 13:55:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:10,304 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-07-23 13:55:10,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-07-23 13:55:10,304 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 105 [2018-07-23 13:55:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:10,305 INFO L225 Difference]: With dead ends: 109 [2018-07-23 13:55:10,305 INFO L226 Difference]: Without dead ends: 107 [2018-07-23 13:55:10,306 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:55:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-07-23 13:55:10,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-07-23 13:55:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-07-23 13:55:10,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-07-23 13:55:10,309 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 105 [2018-07-23 13:55:10,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:10,309 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-07-23 13:55:10,309 INFO L472 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-07-23 13:55:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-07-23 13:55:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-23 13:55:10,310 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:10,310 INFO L357 BasicCegarLoop]: trace histogram [103, 1, 1, 1] [2018-07-23 13:55:10,310 INFO L414 AbstractCegarLoop]: === Iteration 104 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:10,310 INFO L82 PathProgramCache]: Analyzing trace with hash 748670278, now seen corresponding path program 103 times [2018-07-23 13:55:10,310 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,605 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:10,605 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:55:10,605 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,606 INFO L185 omatonBuilderFactory]: Interpolants [29067#true, 29068#false, 29069#(<= main_x 0), 29070#(<= main_x 1), 29071#(<= main_x 2), 29072#(<= main_x 3), 29073#(<= main_x 4), 29074#(<= main_x 5), 29075#(<= main_x 6), 29076#(<= main_x 7), 29077#(<= main_x 8), 29078#(<= main_x 9), 29079#(<= main_x 10), 29080#(<= main_x 11), 29081#(<= main_x 12), 29082#(<= main_x 13), 29083#(<= main_x 14), 29084#(<= main_x 15), 29085#(<= main_x 16), 29086#(<= main_x 17), 29087#(<= main_x 18), 29088#(<= main_x 19), 29089#(<= main_x 20), 29090#(<= main_x 21), 29091#(<= main_x 22), 29092#(<= main_x 23), 29093#(<= main_x 24), 29094#(<= main_x 25), 29095#(<= main_x 26), 29096#(<= main_x 27), 29097#(<= main_x 28), 29098#(<= main_x 29), 29099#(<= main_x 30), 29100#(<= main_x 31), 29101#(<= main_x 32), 29102#(<= main_x 33), 29103#(<= main_x 34), 29104#(<= main_x 35), 29105#(<= main_x 36), 29106#(<= main_x 37), 29107#(<= main_x 38), 29108#(<= main_x 39), 29109#(<= main_x 40), 29110#(<= main_x 41), 29111#(<= main_x 42), 29112#(<= main_x 43), 29113#(<= main_x 44), 29114#(<= main_x 45), 29115#(<= main_x 46), 29116#(<= main_x 47), 29117#(<= main_x 48), 29118#(<= main_x 49), 29119#(<= main_x 50), 29120#(<= main_x 51), 29121#(<= main_x 52), 29122#(<= main_x 53), 29123#(<= main_x 54), 29124#(<= main_x 55), 29125#(<= main_x 56), 29126#(<= main_x 57), 29127#(<= main_x 58), 29128#(<= main_x 59), 29129#(<= main_x 60), 29130#(<= main_x 61), 29131#(<= main_x 62), 29132#(<= main_x 63), 29133#(<= main_x 64), 29134#(<= main_x 65), 29135#(<= main_x 66), 29136#(<= main_x 67), 29137#(<= main_x 68), 29138#(<= main_x 69), 29139#(<= main_x 70), 29140#(<= main_x 71), 29141#(<= main_x 72), 29142#(<= main_x 73), 29143#(<= main_x 74), 29144#(<= main_x 75), 29145#(<= main_x 76), 29146#(<= main_x 77), 29147#(<= main_x 78), 29148#(<= main_x 79), 29149#(<= main_x 80), 29150#(<= main_x 81), 29151#(<= main_x 82), 29152#(<= main_x 83), 29153#(<= main_x 84), 29154#(<= main_x 85), 29155#(<= main_x 86), 29156#(<= main_x 87), 29157#(<= main_x 88), 29158#(<= main_x 89), 29159#(<= main_x 90), 29160#(<= main_x 91), 29161#(<= main_x 92), 29162#(<= main_x 93), 29163#(<= main_x 94), 29164#(<= main_x 95), 29165#(<= main_x 96), 29166#(<= main_x 97), 29167#(<= main_x 98), 29168#(<= main_x 99), 29169#(<= main_x 100), 29170#(<= main_x 101), 29171#(<= main_x 102), 29172#(<= main_x 103)] [2018-07-23 13:55:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,606 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:55:10,607 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:55:10,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:55:10,608 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 106 states. [2018-07-23 13:55:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:10,703 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-07-23 13:55:10,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:55:10,704 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 106 [2018-07-23 13:55:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:10,704 INFO L225 Difference]: With dead ends: 110 [2018-07-23 13:55:10,704 INFO L226 Difference]: Without dead ends: 108 [2018-07-23 13:55:10,705 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:55:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-07-23 13:55:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-07-23 13:55:10,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-07-23 13:55:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-07-23 13:55:10,708 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 106 [2018-07-23 13:55:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:10,708 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-07-23 13:55:10,709 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:55:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-07-23 13:55:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 13:55:10,709 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:10,709 INFO L357 BasicCegarLoop]: trace histogram [104, 1, 1, 1] [2018-07-23 13:55:10,710 INFO L414 AbstractCegarLoop]: === Iteration 105 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:10,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1733938272, now seen corresponding path program 104 times [2018-07-23 13:55:10,710 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:11,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,078 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:11,078 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-07-23 13:55:11,078 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,079 INFO L185 omatonBuilderFactory]: Interpolants [29696#(<= main_x 85), 29697#(<= main_x 86), 29698#(<= main_x 87), 29699#(<= main_x 88), 29700#(<= main_x 89), 29701#(<= main_x 90), 29702#(<= main_x 91), 29703#(<= main_x 92), 29704#(<= main_x 93), 29705#(<= main_x 94), 29706#(<= main_x 95), 29707#(<= main_x 96), 29708#(<= main_x 97), 29709#(<= main_x 98), 29710#(<= main_x 99), 29711#(<= main_x 100), 29712#(<= main_x 101), 29713#(<= main_x 102), 29714#(<= main_x 103), 29715#(<= main_x 104), 29609#true, 29610#false, 29611#(<= main_x 0), 29612#(<= main_x 1), 29613#(<= main_x 2), 29614#(<= main_x 3), 29615#(<= main_x 4), 29616#(<= main_x 5), 29617#(<= main_x 6), 29618#(<= main_x 7), 29619#(<= main_x 8), 29620#(<= main_x 9), 29621#(<= main_x 10), 29622#(<= main_x 11), 29623#(<= main_x 12), 29624#(<= main_x 13), 29625#(<= main_x 14), 29626#(<= main_x 15), 29627#(<= main_x 16), 29628#(<= main_x 17), 29629#(<= main_x 18), 29630#(<= main_x 19), 29631#(<= main_x 20), 29632#(<= main_x 21), 29633#(<= main_x 22), 29634#(<= main_x 23), 29635#(<= main_x 24), 29636#(<= main_x 25), 29637#(<= main_x 26), 29638#(<= main_x 27), 29639#(<= main_x 28), 29640#(<= main_x 29), 29641#(<= main_x 30), 29642#(<= main_x 31), 29643#(<= main_x 32), 29644#(<= main_x 33), 29645#(<= main_x 34), 29646#(<= main_x 35), 29647#(<= main_x 36), 29648#(<= main_x 37), 29649#(<= main_x 38), 29650#(<= main_x 39), 29651#(<= main_x 40), 29652#(<= main_x 41), 29653#(<= main_x 42), 29654#(<= main_x 43), 29655#(<= main_x 44), 29656#(<= main_x 45), 29657#(<= main_x 46), 29658#(<= main_x 47), 29659#(<= main_x 48), 29660#(<= main_x 49), 29661#(<= main_x 50), 29662#(<= main_x 51), 29663#(<= main_x 52), 29664#(<= main_x 53), 29665#(<= main_x 54), 29666#(<= main_x 55), 29667#(<= main_x 56), 29668#(<= main_x 57), 29669#(<= main_x 58), 29670#(<= main_x 59), 29671#(<= main_x 60), 29672#(<= main_x 61), 29673#(<= main_x 62), 29674#(<= main_x 63), 29675#(<= main_x 64), 29676#(<= main_x 65), 29677#(<= main_x 66), 29678#(<= main_x 67), 29679#(<= main_x 68), 29680#(<= main_x 69), 29681#(<= main_x 70), 29682#(<= main_x 71), 29683#(<= main_x 72), 29684#(<= main_x 73), 29685#(<= main_x 74), 29686#(<= main_x 75), 29687#(<= main_x 76), 29688#(<= main_x 77), 29689#(<= main_x 78), 29690#(<= main_x 79), 29691#(<= main_x 80), 29692#(<= main_x 81), 29693#(<= main_x 82), 29694#(<= main_x 83), 29695#(<= main_x 84)] [2018-07-23 13:55:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,079 INFO L450 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-07-23 13:55:11,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-07-23 13:55:11,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:55:11,102 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 107 states. [2018-07-23 13:55:11,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:11,162 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-07-23 13:55:11,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-07-23 13:55:11,163 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 107 [2018-07-23 13:55:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:11,163 INFO L225 Difference]: With dead ends: 111 [2018-07-23 13:55:11,164 INFO L226 Difference]: Without dead ends: 109 [2018-07-23 13:55:11,164 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:55:11,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-07-23 13:55:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-07-23 13:55:11,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-07-23 13:55:11,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2018-07-23 13:55:11,167 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 107 [2018-07-23 13:55:11,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:11,168 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2018-07-23 13:55:11,168 INFO L472 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-07-23 13:55:11,168 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-07-23 13:55:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 13:55:11,169 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:11,169 INFO L357 BasicCegarLoop]: trace histogram [105, 1, 1, 1] [2018-07-23 13:55:11,169 INFO L414 AbstractCegarLoop]: === Iteration 106 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:11,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2082492282, now seen corresponding path program 105 times [2018-07-23 13:55:11,169 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,440 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:11,440 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:55:11,441 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,441 INFO L185 omatonBuilderFactory]: Interpolants [30208#(<= main_x 50), 30209#(<= main_x 51), 30210#(<= main_x 52), 30211#(<= main_x 53), 30212#(<= main_x 54), 30213#(<= main_x 55), 30214#(<= main_x 56), 30215#(<= main_x 57), 30216#(<= main_x 58), 30217#(<= main_x 59), 30218#(<= main_x 60), 30219#(<= main_x 61), 30220#(<= main_x 62), 30221#(<= main_x 63), 30222#(<= main_x 64), 30223#(<= main_x 65), 30224#(<= main_x 66), 30225#(<= main_x 67), 30226#(<= main_x 68), 30227#(<= main_x 69), 30228#(<= main_x 70), 30229#(<= main_x 71), 30230#(<= main_x 72), 30231#(<= main_x 73), 30232#(<= main_x 74), 30233#(<= main_x 75), 30234#(<= main_x 76), 30235#(<= main_x 77), 30236#(<= main_x 78), 30237#(<= main_x 79), 30238#(<= main_x 80), 30239#(<= main_x 81), 30240#(<= main_x 82), 30241#(<= main_x 83), 30242#(<= main_x 84), 30243#(<= main_x 85), 30244#(<= main_x 86), 30245#(<= main_x 87), 30246#(<= main_x 88), 30247#(<= main_x 89), 30248#(<= main_x 90), 30249#(<= main_x 91), 30250#(<= main_x 92), 30251#(<= main_x 93), 30252#(<= main_x 94), 30253#(<= main_x 95), 30254#(<= main_x 96), 30255#(<= main_x 97), 30256#(<= main_x 98), 30257#(<= main_x 99), 30258#(<= main_x 100), 30259#(<= main_x 101), 30260#(<= main_x 102), 30261#(<= main_x 103), 30262#(<= main_x 104), 30263#(<= main_x 105), 30156#true, 30157#false, 30158#(<= main_x 0), 30159#(<= main_x 1), 30160#(<= main_x 2), 30161#(<= main_x 3), 30162#(<= main_x 4), 30163#(<= main_x 5), 30164#(<= main_x 6), 30165#(<= main_x 7), 30166#(<= main_x 8), 30167#(<= main_x 9), 30168#(<= main_x 10), 30169#(<= main_x 11), 30170#(<= main_x 12), 30171#(<= main_x 13), 30172#(<= main_x 14), 30173#(<= main_x 15), 30174#(<= main_x 16), 30175#(<= main_x 17), 30176#(<= main_x 18), 30177#(<= main_x 19), 30178#(<= main_x 20), 30179#(<= main_x 21), 30180#(<= main_x 22), 30181#(<= main_x 23), 30182#(<= main_x 24), 30183#(<= main_x 25), 30184#(<= main_x 26), 30185#(<= main_x 27), 30186#(<= main_x 28), 30187#(<= main_x 29), 30188#(<= main_x 30), 30189#(<= main_x 31), 30190#(<= main_x 32), 30191#(<= main_x 33), 30192#(<= main_x 34), 30193#(<= main_x 35), 30194#(<= main_x 36), 30195#(<= main_x 37), 30196#(<= main_x 38), 30197#(<= main_x 39), 30198#(<= main_x 40), 30199#(<= main_x 41), 30200#(<= main_x 42), 30201#(<= main_x 43), 30202#(<= main_x 44), 30203#(<= main_x 45), 30204#(<= main_x 46), 30205#(<= main_x 47), 30206#(<= main_x 48), 30207#(<= main_x 49)] [2018-07-23 13:55:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,441 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:55:11,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:55:11,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:55:11,443 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand 108 states. [2018-07-23 13:55:11,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:11,509 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-07-23 13:55:11,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:55:11,509 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 108 [2018-07-23 13:55:11,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:11,509 INFO L225 Difference]: With dead ends: 112 [2018-07-23 13:55:11,510 INFO L226 Difference]: Without dead ends: 110 [2018-07-23 13:55:11,510 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:55:11,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-07-23 13:55:11,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-07-23 13:55:11,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-23 13:55:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-07-23 13:55:11,514 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 108 [2018-07-23 13:55:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:11,514 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-07-23 13:55:11,514 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:55:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-07-23 13:55:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 13:55:11,515 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:11,515 INFO L357 BasicCegarLoop]: trace histogram [106, 1, 1, 1] [2018-07-23 13:55:11,515 INFO L414 AbstractCegarLoop]: === Iteration 107 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:11,516 INFO L82 PathProgramCache]: Analyzing trace with hash -132755168, now seen corresponding path program 106 times [2018-07-23 13:55:11,516 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,825 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:11,825 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-07-23 13:55:11,825 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,826 INFO L185 omatonBuilderFactory]: Interpolants [30720#(<= main_x 10), 30721#(<= main_x 11), 30722#(<= main_x 12), 30723#(<= main_x 13), 30724#(<= main_x 14), 30725#(<= main_x 15), 30726#(<= main_x 16), 30727#(<= main_x 17), 30728#(<= main_x 18), 30729#(<= main_x 19), 30730#(<= main_x 20), 30731#(<= main_x 21), 30732#(<= main_x 22), 30733#(<= main_x 23), 30734#(<= main_x 24), 30735#(<= main_x 25), 30736#(<= main_x 26), 30737#(<= main_x 27), 30738#(<= main_x 28), 30739#(<= main_x 29), 30740#(<= main_x 30), 30741#(<= main_x 31), 30742#(<= main_x 32), 30743#(<= main_x 33), 30744#(<= main_x 34), 30745#(<= main_x 35), 30746#(<= main_x 36), 30747#(<= main_x 37), 30748#(<= main_x 38), 30749#(<= main_x 39), 30750#(<= main_x 40), 30751#(<= main_x 41), 30752#(<= main_x 42), 30753#(<= main_x 43), 30754#(<= main_x 44), 30755#(<= main_x 45), 30756#(<= main_x 46), 30757#(<= main_x 47), 30758#(<= main_x 48), 30759#(<= main_x 49), 30760#(<= main_x 50), 30761#(<= main_x 51), 30762#(<= main_x 52), 30763#(<= main_x 53), 30764#(<= main_x 54), 30765#(<= main_x 55), 30766#(<= main_x 56), 30767#(<= main_x 57), 30768#(<= main_x 58), 30769#(<= main_x 59), 30770#(<= main_x 60), 30771#(<= main_x 61), 30772#(<= main_x 62), 30773#(<= main_x 63), 30774#(<= main_x 64), 30775#(<= main_x 65), 30776#(<= main_x 66), 30777#(<= main_x 67), 30778#(<= main_x 68), 30779#(<= main_x 69), 30780#(<= main_x 70), 30781#(<= main_x 71), 30782#(<= main_x 72), 30783#(<= main_x 73), 30784#(<= main_x 74), 30785#(<= main_x 75), 30786#(<= main_x 76), 30787#(<= main_x 77), 30788#(<= main_x 78), 30789#(<= main_x 79), 30790#(<= main_x 80), 30791#(<= main_x 81), 30792#(<= main_x 82), 30793#(<= main_x 83), 30794#(<= main_x 84), 30795#(<= main_x 85), 30796#(<= main_x 86), 30797#(<= main_x 87), 30798#(<= main_x 88), 30799#(<= main_x 89), 30800#(<= main_x 90), 30801#(<= main_x 91), 30802#(<= main_x 92), 30803#(<= main_x 93), 30804#(<= main_x 94), 30805#(<= main_x 95), 30806#(<= main_x 96), 30807#(<= main_x 97), 30808#(<= main_x 98), 30809#(<= main_x 99), 30810#(<= main_x 100), 30811#(<= main_x 101), 30812#(<= main_x 102), 30813#(<= main_x 103), 30814#(<= main_x 104), 30815#(<= main_x 105), 30816#(<= main_x 106), 30708#true, 30709#false, 30710#(<= main_x 0), 30711#(<= main_x 1), 30712#(<= main_x 2), 30713#(<= main_x 3), 30714#(<= main_x 4), 30715#(<= main_x 5), 30716#(<= main_x 6), 30717#(<= main_x 7), 30718#(<= main_x 8), 30719#(<= main_x 9)] [2018-07-23 13:55:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-07-23 13:55:11,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-07-23 13:55:11,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:55:11,828 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 109 states. [2018-07-23 13:55:11,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:11,942 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-07-23 13:55:11,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-07-23 13:55:11,942 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 109 [2018-07-23 13:55:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:11,943 INFO L225 Difference]: With dead ends: 113 [2018-07-23 13:55:11,943 INFO L226 Difference]: Without dead ends: 111 [2018-07-23 13:55:11,944 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:55:11,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-07-23 13:55:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-07-23 13:55:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-07-23 13:55:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2018-07-23 13:55:11,947 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 109 [2018-07-23 13:55:11,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:11,947 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2018-07-23 13:55:11,947 INFO L472 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-07-23 13:55:11,947 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-07-23 13:55:11,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 13:55:11,948 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:11,948 INFO L357 BasicCegarLoop]: trace histogram [107, 1, 1, 1] [2018-07-23 13:55:11,948 INFO L414 AbstractCegarLoop]: === Iteration 108 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:11,949 INFO L82 PathProgramCache]: Analyzing trace with hash 179553222, now seen corresponding path program 107 times [2018-07-23 13:55:11,949 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,270 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:12,270 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:55:12,270 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,270 INFO L185 omatonBuilderFactory]: Interpolants [31265#true, 31266#false, 31267#(<= main_x 0), 31268#(<= main_x 1), 31269#(<= main_x 2), 31270#(<= main_x 3), 31271#(<= main_x 4), 31272#(<= main_x 5), 31273#(<= main_x 6), 31274#(<= main_x 7), 31275#(<= main_x 8), 31276#(<= main_x 9), 31277#(<= main_x 10), 31278#(<= main_x 11), 31279#(<= main_x 12), 31280#(<= main_x 13), 31281#(<= main_x 14), 31282#(<= main_x 15), 31283#(<= main_x 16), 31284#(<= main_x 17), 31285#(<= main_x 18), 31286#(<= main_x 19), 31287#(<= main_x 20), 31288#(<= main_x 21), 31289#(<= main_x 22), 31290#(<= main_x 23), 31291#(<= main_x 24), 31292#(<= main_x 25), 31293#(<= main_x 26), 31294#(<= main_x 27), 31295#(<= main_x 28), 31296#(<= main_x 29), 31297#(<= main_x 30), 31298#(<= main_x 31), 31299#(<= main_x 32), 31300#(<= main_x 33), 31301#(<= main_x 34), 31302#(<= main_x 35), 31303#(<= main_x 36), 31304#(<= main_x 37), 31305#(<= main_x 38), 31306#(<= main_x 39), 31307#(<= main_x 40), 31308#(<= main_x 41), 31309#(<= main_x 42), 31310#(<= main_x 43), 31311#(<= main_x 44), 31312#(<= main_x 45), 31313#(<= main_x 46), 31314#(<= main_x 47), 31315#(<= main_x 48), 31316#(<= main_x 49), 31317#(<= main_x 50), 31318#(<= main_x 51), 31319#(<= main_x 52), 31320#(<= main_x 53), 31321#(<= main_x 54), 31322#(<= main_x 55), 31323#(<= main_x 56), 31324#(<= main_x 57), 31325#(<= main_x 58), 31326#(<= main_x 59), 31327#(<= main_x 60), 31328#(<= main_x 61), 31329#(<= main_x 62), 31330#(<= main_x 63), 31331#(<= main_x 64), 31332#(<= main_x 65), 31333#(<= main_x 66), 31334#(<= main_x 67), 31335#(<= main_x 68), 31336#(<= main_x 69), 31337#(<= main_x 70), 31338#(<= main_x 71), 31339#(<= main_x 72), 31340#(<= main_x 73), 31341#(<= main_x 74), 31342#(<= main_x 75), 31343#(<= main_x 76), 31344#(<= main_x 77), 31345#(<= main_x 78), 31346#(<= main_x 79), 31347#(<= main_x 80), 31348#(<= main_x 81), 31349#(<= main_x 82), 31350#(<= main_x 83), 31351#(<= main_x 84), 31352#(<= main_x 85), 31353#(<= main_x 86), 31354#(<= main_x 87), 31355#(<= main_x 88), 31356#(<= main_x 89), 31357#(<= main_x 90), 31358#(<= main_x 91), 31359#(<= main_x 92), 31360#(<= main_x 93), 31361#(<= main_x 94), 31362#(<= main_x 95), 31363#(<= main_x 96), 31364#(<= main_x 97), 31365#(<= main_x 98), 31366#(<= main_x 99), 31367#(<= main_x 100), 31368#(<= main_x 101), 31369#(<= main_x 102), 31370#(<= main_x 103), 31371#(<= main_x 104), 31372#(<= main_x 105), 31373#(<= main_x 106), 31374#(<= main_x 107)] [2018-07-23 13:55:12,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,271 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:55:12,272 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:55:12,272 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:55:12,272 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 110 states. [2018-07-23 13:55:12,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:12,397 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-07-23 13:55:12,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:55:12,397 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 110 [2018-07-23 13:55:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:12,398 INFO L225 Difference]: With dead ends: 114 [2018-07-23 13:55:12,398 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:55:12,399 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:55:12,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:55:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-07-23 13:55:12,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-07-23 13:55:12,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-07-23 13:55:12,403 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 110 [2018-07-23 13:55:12,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:12,403 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-07-23 13:55:12,403 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:55:12,403 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-07-23 13:55:12,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 13:55:12,404 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:12,404 INFO L357 BasicCegarLoop]: trace histogram [108, 1, 1, 1] [2018-07-23 13:55:12,404 INFO L414 AbstractCegarLoop]: === Iteration 109 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:12,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1271178720, now seen corresponding path program 108 times [2018-07-23 13:55:12,404 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,796 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:12,796 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-07-23 13:55:12,796 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,797 INFO L185 omatonBuilderFactory]: Interpolants [31827#true, 31828#false, 31829#(<= main_x 0), 31830#(<= main_x 1), 31831#(<= main_x 2), 31832#(<= main_x 3), 31833#(<= main_x 4), 31834#(<= main_x 5), 31835#(<= main_x 6), 31836#(<= main_x 7), 31837#(<= main_x 8), 31838#(<= main_x 9), 31839#(<= main_x 10), 31840#(<= main_x 11), 31841#(<= main_x 12), 31842#(<= main_x 13), 31843#(<= main_x 14), 31844#(<= main_x 15), 31845#(<= main_x 16), 31846#(<= main_x 17), 31847#(<= main_x 18), 31848#(<= main_x 19), 31849#(<= main_x 20), 31850#(<= main_x 21), 31851#(<= main_x 22), 31852#(<= main_x 23), 31853#(<= main_x 24), 31854#(<= main_x 25), 31855#(<= main_x 26), 31856#(<= main_x 27), 31857#(<= main_x 28), 31858#(<= main_x 29), 31859#(<= main_x 30), 31860#(<= main_x 31), 31861#(<= main_x 32), 31862#(<= main_x 33), 31863#(<= main_x 34), 31864#(<= main_x 35), 31865#(<= main_x 36), 31866#(<= main_x 37), 31867#(<= main_x 38), 31868#(<= main_x 39), 31869#(<= main_x 40), 31870#(<= main_x 41), 31871#(<= main_x 42), 31872#(<= main_x 43), 31873#(<= main_x 44), 31874#(<= main_x 45), 31875#(<= main_x 46), 31876#(<= main_x 47), 31877#(<= main_x 48), 31878#(<= main_x 49), 31879#(<= main_x 50), 31880#(<= main_x 51), 31881#(<= main_x 52), 31882#(<= main_x 53), 31883#(<= main_x 54), 31884#(<= main_x 55), 31885#(<= main_x 56), 31886#(<= main_x 57), 31887#(<= main_x 58), 31888#(<= main_x 59), 31889#(<= main_x 60), 31890#(<= main_x 61), 31891#(<= main_x 62), 31892#(<= main_x 63), 31893#(<= main_x 64), 31894#(<= main_x 65), 31895#(<= main_x 66), 31896#(<= main_x 67), 31897#(<= main_x 68), 31898#(<= main_x 69), 31899#(<= main_x 70), 31900#(<= main_x 71), 31901#(<= main_x 72), 31902#(<= main_x 73), 31903#(<= main_x 74), 31904#(<= main_x 75), 31905#(<= main_x 76), 31906#(<= main_x 77), 31907#(<= main_x 78), 31908#(<= main_x 79), 31909#(<= main_x 80), 31910#(<= main_x 81), 31911#(<= main_x 82), 31912#(<= main_x 83), 31913#(<= main_x 84), 31914#(<= main_x 85), 31915#(<= main_x 86), 31916#(<= main_x 87), 31917#(<= main_x 88), 31918#(<= main_x 89), 31919#(<= main_x 90), 31920#(<= main_x 91), 31921#(<= main_x 92), 31922#(<= main_x 93), 31923#(<= main_x 94), 31924#(<= main_x 95), 31925#(<= main_x 96), 31926#(<= main_x 97), 31927#(<= main_x 98), 31928#(<= main_x 99), 31929#(<= main_x 100), 31930#(<= main_x 101), 31931#(<= main_x 102), 31932#(<= main_x 103), 31933#(<= main_x 104), 31934#(<= main_x 105), 31935#(<= main_x 106), 31936#(<= main_x 107), 31937#(<= main_x 108)] [2018-07-23 13:55:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:12,798 INFO L450 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-07-23 13:55:12,799 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-07-23 13:55:12,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:55:12,800 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 111 states. [2018-07-23 13:55:12,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:12,891 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-07-23 13:55:12,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-07-23 13:55:12,891 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 111 [2018-07-23 13:55:12,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:12,892 INFO L225 Difference]: With dead ends: 115 [2018-07-23 13:55:12,892 INFO L226 Difference]: Without dead ends: 113 [2018-07-23 13:55:12,892 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:55:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-07-23 13:55:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-07-23 13:55:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-07-23 13:55:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-07-23 13:55:12,896 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 111 [2018-07-23 13:55:12,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:12,896 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-07-23 13:55:12,896 INFO L472 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-07-23 13:55:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-07-23 13:55:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-23 13:55:12,897 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:12,897 INFO L357 BasicCegarLoop]: trace histogram [109, 1, 1, 1] [2018-07-23 13:55:12,897 INFO L414 AbstractCegarLoop]: === Iteration 110 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:12,897 INFO L82 PathProgramCache]: Analyzing trace with hash 751830790, now seen corresponding path program 109 times [2018-07-23 13:55:12,897 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 0 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:13,239 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:13,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:55:13,239 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:13,240 INFO L185 omatonBuilderFactory]: Interpolants [32394#true, 32395#false, 32396#(<= main_x 0), 32397#(<= main_x 1), 32398#(<= main_x 2), 32399#(<= main_x 3), 32400#(<= main_x 4), 32401#(<= main_x 5), 32402#(<= main_x 6), 32403#(<= main_x 7), 32404#(<= main_x 8), 32405#(<= main_x 9), 32406#(<= main_x 10), 32407#(<= main_x 11), 32408#(<= main_x 12), 32409#(<= main_x 13), 32410#(<= main_x 14), 32411#(<= main_x 15), 32412#(<= main_x 16), 32413#(<= main_x 17), 32414#(<= main_x 18), 32415#(<= main_x 19), 32416#(<= main_x 20), 32417#(<= main_x 21), 32418#(<= main_x 22), 32419#(<= main_x 23), 32420#(<= main_x 24), 32421#(<= main_x 25), 32422#(<= main_x 26), 32423#(<= main_x 27), 32424#(<= main_x 28), 32425#(<= main_x 29), 32426#(<= main_x 30), 32427#(<= main_x 31), 32428#(<= main_x 32), 32429#(<= main_x 33), 32430#(<= main_x 34), 32431#(<= main_x 35), 32432#(<= main_x 36), 32433#(<= main_x 37), 32434#(<= main_x 38), 32435#(<= main_x 39), 32436#(<= main_x 40), 32437#(<= main_x 41), 32438#(<= main_x 42), 32439#(<= main_x 43), 32440#(<= main_x 44), 32441#(<= main_x 45), 32442#(<= main_x 46), 32443#(<= main_x 47), 32444#(<= main_x 48), 32445#(<= main_x 49), 32446#(<= main_x 50), 32447#(<= main_x 51), 32448#(<= main_x 52), 32449#(<= main_x 53), 32450#(<= main_x 54), 32451#(<= main_x 55), 32452#(<= main_x 56), 32453#(<= main_x 57), 32454#(<= main_x 58), 32455#(<= main_x 59), 32456#(<= main_x 60), 32457#(<= main_x 61), 32458#(<= main_x 62), 32459#(<= main_x 63), 32460#(<= main_x 64), 32461#(<= main_x 65), 32462#(<= main_x 66), 32463#(<= main_x 67), 32464#(<= main_x 68), 32465#(<= main_x 69), 32466#(<= main_x 70), 32467#(<= main_x 71), 32468#(<= main_x 72), 32469#(<= main_x 73), 32470#(<= main_x 74), 32471#(<= main_x 75), 32472#(<= main_x 76), 32473#(<= main_x 77), 32474#(<= main_x 78), 32475#(<= main_x 79), 32476#(<= main_x 80), 32477#(<= main_x 81), 32478#(<= main_x 82), 32479#(<= main_x 83), 32480#(<= main_x 84), 32481#(<= main_x 85), 32482#(<= main_x 86), 32483#(<= main_x 87), 32484#(<= main_x 88), 32485#(<= main_x 89), 32486#(<= main_x 90), 32487#(<= main_x 91), 32488#(<= main_x 92), 32489#(<= main_x 93), 32490#(<= main_x 94), 32491#(<= main_x 95), 32492#(<= main_x 96), 32493#(<= main_x 97), 32494#(<= main_x 98), 32495#(<= main_x 99), 32496#(<= main_x 100), 32497#(<= main_x 101), 32498#(<= main_x 102), 32499#(<= main_x 103), 32500#(<= main_x 104), 32501#(<= main_x 105), 32502#(<= main_x 106), 32503#(<= main_x 107), 32504#(<= main_x 108), 32505#(<= main_x 109)] [2018-07-23 13:55:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 0 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:13,240 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:55:13,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:55:13,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:55:13,242 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 112 states. [2018-07-23 13:55:13,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:13,437 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-07-23 13:55:13,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:55:13,437 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 112 [2018-07-23 13:55:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:13,438 INFO L225 Difference]: With dead ends: 116 [2018-07-23 13:55:13,438 INFO L226 Difference]: Without dead ends: 114 [2018-07-23 13:55:13,439 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:55:13,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-07-23 13:55:13,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-07-23 13:55:13,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-07-23 13:55:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2018-07-23 13:55:13,442 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 112 [2018-07-23 13:55:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:13,443 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2018-07-23 13:55:13,443 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:55:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2018-07-23 13:55:13,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 13:55:13,444 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:13,444 INFO L357 BasicCegarLoop]: trace histogram [110, 1, 1, 1] [2018-07-23 13:55:13,444 INFO L414 AbstractCegarLoop]: === Iteration 111 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:13,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1831914144, now seen corresponding path program 110 times [2018-07-23 13:55:13,444 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:13,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:13,846 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:13,846 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-07-23 13:55:13,847 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:13,847 INFO L185 omatonBuilderFactory]: Interpolants [33024#(<= main_x 56), 33025#(<= main_x 57), 33026#(<= main_x 58), 33027#(<= main_x 59), 33028#(<= main_x 60), 33029#(<= main_x 61), 33030#(<= main_x 62), 33031#(<= main_x 63), 33032#(<= main_x 64), 33033#(<= main_x 65), 33034#(<= main_x 66), 33035#(<= main_x 67), 33036#(<= main_x 68), 33037#(<= main_x 69), 33038#(<= main_x 70), 33039#(<= main_x 71), 33040#(<= main_x 72), 33041#(<= main_x 73), 33042#(<= main_x 74), 33043#(<= main_x 75), 33044#(<= main_x 76), 33045#(<= main_x 77), 33046#(<= main_x 78), 33047#(<= main_x 79), 33048#(<= main_x 80), 33049#(<= main_x 81), 33050#(<= main_x 82), 33051#(<= main_x 83), 33052#(<= main_x 84), 33053#(<= main_x 85), 33054#(<= main_x 86), 33055#(<= main_x 87), 33056#(<= main_x 88), 33057#(<= main_x 89), 33058#(<= main_x 90), 33059#(<= main_x 91), 33060#(<= main_x 92), 33061#(<= main_x 93), 33062#(<= main_x 94), 33063#(<= main_x 95), 33064#(<= main_x 96), 33065#(<= main_x 97), 33066#(<= main_x 98), 33067#(<= main_x 99), 33068#(<= main_x 100), 33069#(<= main_x 101), 33070#(<= main_x 102), 33071#(<= main_x 103), 33072#(<= main_x 104), 33073#(<= main_x 105), 33074#(<= main_x 106), 33075#(<= main_x 107), 33076#(<= main_x 108), 33077#(<= main_x 109), 33078#(<= main_x 110), 32966#true, 32967#false, 32968#(<= main_x 0), 32969#(<= main_x 1), 32970#(<= main_x 2), 32971#(<= main_x 3), 32972#(<= main_x 4), 32973#(<= main_x 5), 32974#(<= main_x 6), 32975#(<= main_x 7), 32976#(<= main_x 8), 32977#(<= main_x 9), 32978#(<= main_x 10), 32979#(<= main_x 11), 32980#(<= main_x 12), 32981#(<= main_x 13), 32982#(<= main_x 14), 32983#(<= main_x 15), 32984#(<= main_x 16), 32985#(<= main_x 17), 32986#(<= main_x 18), 32987#(<= main_x 19), 32988#(<= main_x 20), 32989#(<= main_x 21), 32990#(<= main_x 22), 32991#(<= main_x 23), 32992#(<= main_x 24), 32993#(<= main_x 25), 32994#(<= main_x 26), 32995#(<= main_x 27), 32996#(<= main_x 28), 32997#(<= main_x 29), 32998#(<= main_x 30), 32999#(<= main_x 31), 33000#(<= main_x 32), 33001#(<= main_x 33), 33002#(<= main_x 34), 33003#(<= main_x 35), 33004#(<= main_x 36), 33005#(<= main_x 37), 33006#(<= main_x 38), 33007#(<= main_x 39), 33008#(<= main_x 40), 33009#(<= main_x 41), 33010#(<= main_x 42), 33011#(<= main_x 43), 33012#(<= main_x 44), 33013#(<= main_x 45), 33014#(<= main_x 46), 33015#(<= main_x 47), 33016#(<= main_x 48), 33017#(<= main_x 49), 33018#(<= main_x 50), 33019#(<= main_x 51), 33020#(<= main_x 52), 33021#(<= main_x 53), 33022#(<= main_x 54), 33023#(<= main_x 55)] [2018-07-23 13:55:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:13,848 INFO L450 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-07-23 13:55:13,849 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-07-23 13:55:13,849 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:55:13,849 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand 113 states. [2018-07-23 13:55:13,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:13,930 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-07-23 13:55:13,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-07-23 13:55:13,930 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 113 [2018-07-23 13:55:13,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:13,931 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:55:13,931 INFO L226 Difference]: Without dead ends: 115 [2018-07-23 13:55:13,932 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:55:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-07-23 13:55:13,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-07-23 13:55:13,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-07-23 13:55:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2018-07-23 13:55:13,935 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 113 [2018-07-23 13:55:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:13,936 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2018-07-23 13:55:13,936 INFO L472 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-07-23 13:55:13,936 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2018-07-23 13:55:13,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-23 13:55:13,936 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:13,936 INFO L357 BasicCegarLoop]: trace histogram [111, 1, 1, 1] [2018-07-23 13:55:13,937 INFO L414 AbstractCegarLoop]: === Iteration 112 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:13,937 INFO L82 PathProgramCache]: Analyzing trace with hash 954759750, now seen corresponding path program 111 times [2018-07-23 13:55:13,937 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 0 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,287 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:14,287 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:55:14,287 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,287 INFO L185 omatonBuilderFactory]: Interpolants [33543#true, 33544#false, 33545#(<= main_x 0), 33546#(<= main_x 1), 33547#(<= main_x 2), 33548#(<= main_x 3), 33549#(<= main_x 4), 33550#(<= main_x 5), 33551#(<= main_x 6), 33552#(<= main_x 7), 33553#(<= main_x 8), 33554#(<= main_x 9), 33555#(<= main_x 10), 33556#(<= main_x 11), 33557#(<= main_x 12), 33558#(<= main_x 13), 33559#(<= main_x 14), 33560#(<= main_x 15), 33561#(<= main_x 16), 33562#(<= main_x 17), 33563#(<= main_x 18), 33564#(<= main_x 19), 33565#(<= main_x 20), 33566#(<= main_x 21), 33567#(<= main_x 22), 33568#(<= main_x 23), 33569#(<= main_x 24), 33570#(<= main_x 25), 33571#(<= main_x 26), 33572#(<= main_x 27), 33573#(<= main_x 28), 33574#(<= main_x 29), 33575#(<= main_x 30), 33576#(<= main_x 31), 33577#(<= main_x 32), 33578#(<= main_x 33), 33579#(<= main_x 34), 33580#(<= main_x 35), 33581#(<= main_x 36), 33582#(<= main_x 37), 33583#(<= main_x 38), 33584#(<= main_x 39), 33585#(<= main_x 40), 33586#(<= main_x 41), 33587#(<= main_x 42), 33588#(<= main_x 43), 33589#(<= main_x 44), 33590#(<= main_x 45), 33591#(<= main_x 46), 33592#(<= main_x 47), 33593#(<= main_x 48), 33594#(<= main_x 49), 33595#(<= main_x 50), 33596#(<= main_x 51), 33597#(<= main_x 52), 33598#(<= main_x 53), 33599#(<= main_x 54), 33600#(<= main_x 55), 33601#(<= main_x 56), 33602#(<= main_x 57), 33603#(<= main_x 58), 33604#(<= main_x 59), 33605#(<= main_x 60), 33606#(<= main_x 61), 33607#(<= main_x 62), 33608#(<= main_x 63), 33609#(<= main_x 64), 33610#(<= main_x 65), 33611#(<= main_x 66), 33612#(<= main_x 67), 33613#(<= main_x 68), 33614#(<= main_x 69), 33615#(<= main_x 70), 33616#(<= main_x 71), 33617#(<= main_x 72), 33618#(<= main_x 73), 33619#(<= main_x 74), 33620#(<= main_x 75), 33621#(<= main_x 76), 33622#(<= main_x 77), 33623#(<= main_x 78), 33624#(<= main_x 79), 33625#(<= main_x 80), 33626#(<= main_x 81), 33627#(<= main_x 82), 33628#(<= main_x 83), 33629#(<= main_x 84), 33630#(<= main_x 85), 33631#(<= main_x 86), 33632#(<= main_x 87), 33633#(<= main_x 88), 33634#(<= main_x 89), 33635#(<= main_x 90), 33636#(<= main_x 91), 33637#(<= main_x 92), 33638#(<= main_x 93), 33639#(<= main_x 94), 33640#(<= main_x 95), 33641#(<= main_x 96), 33642#(<= main_x 97), 33643#(<= main_x 98), 33644#(<= main_x 99), 33645#(<= main_x 100), 33646#(<= main_x 101), 33647#(<= main_x 102), 33648#(<= main_x 103), 33649#(<= main_x 104), 33650#(<= main_x 105), 33651#(<= main_x 106), 33652#(<= main_x 107), 33653#(<= main_x 108), 33654#(<= main_x 109), 33655#(<= main_x 110), 33656#(<= main_x 111)] [2018-07-23 13:55:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 0 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,288 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:55:14,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:55:14,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:55:14,289 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand 114 states. [2018-07-23 13:55:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:14,460 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-07-23 13:55:14,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:55:14,460 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 114 [2018-07-23 13:55:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:14,461 INFO L225 Difference]: With dead ends: 118 [2018-07-23 13:55:14,461 INFO L226 Difference]: Without dead ends: 116 [2018-07-23 13:55:14,462 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:55:14,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-07-23 13:55:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-07-23 13:55:14,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-07-23 13:55:14,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-07-23 13:55:14,465 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 114 [2018-07-23 13:55:14,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:14,465 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-07-23 13:55:14,466 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:55:14,466 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-07-23 13:55:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 13:55:14,466 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:14,466 INFO L357 BasicCegarLoop]: trace histogram [112, 1, 1, 1] [2018-07-23 13:55:14,467 INFO L414 AbstractCegarLoop]: === Iteration 113 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:14,467 INFO L82 PathProgramCache]: Analyzing trace with hash -467222688, now seen corresponding path program 112 times [2018-07-23 13:55:14,467 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,815 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:14,815 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-07-23 13:55:14,815 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,816 INFO L185 omatonBuilderFactory]: Interpolants [34125#true, 34126#false, 34127#(<= main_x 0), 34128#(<= main_x 1), 34129#(<= main_x 2), 34130#(<= main_x 3), 34131#(<= main_x 4), 34132#(<= main_x 5), 34133#(<= main_x 6), 34134#(<= main_x 7), 34135#(<= main_x 8), 34136#(<= main_x 9), 34137#(<= main_x 10), 34138#(<= main_x 11), 34139#(<= main_x 12), 34140#(<= main_x 13), 34141#(<= main_x 14), 34142#(<= main_x 15), 34143#(<= main_x 16), 34144#(<= main_x 17), 34145#(<= main_x 18), 34146#(<= main_x 19), 34147#(<= main_x 20), 34148#(<= main_x 21), 34149#(<= main_x 22), 34150#(<= main_x 23), 34151#(<= main_x 24), 34152#(<= main_x 25), 34153#(<= main_x 26), 34154#(<= main_x 27), 34155#(<= main_x 28), 34156#(<= main_x 29), 34157#(<= main_x 30), 34158#(<= main_x 31), 34159#(<= main_x 32), 34160#(<= main_x 33), 34161#(<= main_x 34), 34162#(<= main_x 35), 34163#(<= main_x 36), 34164#(<= main_x 37), 34165#(<= main_x 38), 34166#(<= main_x 39), 34167#(<= main_x 40), 34168#(<= main_x 41), 34169#(<= main_x 42), 34170#(<= main_x 43), 34171#(<= main_x 44), 34172#(<= main_x 45), 34173#(<= main_x 46), 34174#(<= main_x 47), 34175#(<= main_x 48), 34176#(<= main_x 49), 34177#(<= main_x 50), 34178#(<= main_x 51), 34179#(<= main_x 52), 34180#(<= main_x 53), 34181#(<= main_x 54), 34182#(<= main_x 55), 34183#(<= main_x 56), 34184#(<= main_x 57), 34185#(<= main_x 58), 34186#(<= main_x 59), 34187#(<= main_x 60), 34188#(<= main_x 61), 34189#(<= main_x 62), 34190#(<= main_x 63), 34191#(<= main_x 64), 34192#(<= main_x 65), 34193#(<= main_x 66), 34194#(<= main_x 67), 34195#(<= main_x 68), 34196#(<= main_x 69), 34197#(<= main_x 70), 34198#(<= main_x 71), 34199#(<= main_x 72), 34200#(<= main_x 73), 34201#(<= main_x 74), 34202#(<= main_x 75), 34203#(<= main_x 76), 34204#(<= main_x 77), 34205#(<= main_x 78), 34206#(<= main_x 79), 34207#(<= main_x 80), 34208#(<= main_x 81), 34209#(<= main_x 82), 34210#(<= main_x 83), 34211#(<= main_x 84), 34212#(<= main_x 85), 34213#(<= main_x 86), 34214#(<= main_x 87), 34215#(<= main_x 88), 34216#(<= main_x 89), 34217#(<= main_x 90), 34218#(<= main_x 91), 34219#(<= main_x 92), 34220#(<= main_x 93), 34221#(<= main_x 94), 34222#(<= main_x 95), 34223#(<= main_x 96), 34224#(<= main_x 97), 34225#(<= main_x 98), 34226#(<= main_x 99), 34227#(<= main_x 100), 34228#(<= main_x 101), 34229#(<= main_x 102), 34230#(<= main_x 103), 34231#(<= main_x 104), 34232#(<= main_x 105), 34233#(<= main_x 106), 34234#(<= main_x 107), 34235#(<= main_x 108), 34236#(<= main_x 109), 34237#(<= main_x 110), 34238#(<= main_x 111), 34239#(<= main_x 112)] [2018-07-23 13:55:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,816 INFO L450 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-07-23 13:55:14,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-07-23 13:55:14,818 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:55:14,818 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 115 states. [2018-07-23 13:55:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:14,912 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2018-07-23 13:55:14,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-07-23 13:55:14,912 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 115 [2018-07-23 13:55:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:14,912 INFO L225 Difference]: With dead ends: 119 [2018-07-23 13:55:14,912 INFO L226 Difference]: Without dead ends: 117 [2018-07-23 13:55:14,913 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:55:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-07-23 13:55:14,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-07-23 13:55:14,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-07-23 13:55:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2018-07-23 13:55:14,915 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 115 [2018-07-23 13:55:14,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:14,915 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2018-07-23 13:55:14,915 INFO L472 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-07-23 13:55:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2018-07-23 13:55:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-23 13:55:14,916 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:14,916 INFO L357 BasicCegarLoop]: trace histogram [113, 1, 1, 1] [2018-07-23 13:55:14,916 INFO L414 AbstractCegarLoop]: === Iteration 114 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:14,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1599005306, now seen corresponding path program 113 times [2018-07-23 13:55:14,916 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,288 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:15,288 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:55:15,288 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,288 INFO L185 omatonBuilderFactory]: Interpolants [34816#(<= main_x 102), 34817#(<= main_x 103), 34818#(<= main_x 104), 34819#(<= main_x 105), 34820#(<= main_x 106), 34821#(<= main_x 107), 34822#(<= main_x 108), 34823#(<= main_x 109), 34824#(<= main_x 110), 34825#(<= main_x 111), 34826#(<= main_x 112), 34827#(<= main_x 113), 34712#true, 34713#false, 34714#(<= main_x 0), 34715#(<= main_x 1), 34716#(<= main_x 2), 34717#(<= main_x 3), 34718#(<= main_x 4), 34719#(<= main_x 5), 34720#(<= main_x 6), 34721#(<= main_x 7), 34722#(<= main_x 8), 34723#(<= main_x 9), 34724#(<= main_x 10), 34725#(<= main_x 11), 34726#(<= main_x 12), 34727#(<= main_x 13), 34728#(<= main_x 14), 34729#(<= main_x 15), 34730#(<= main_x 16), 34731#(<= main_x 17), 34732#(<= main_x 18), 34733#(<= main_x 19), 34734#(<= main_x 20), 34735#(<= main_x 21), 34736#(<= main_x 22), 34737#(<= main_x 23), 34738#(<= main_x 24), 34739#(<= main_x 25), 34740#(<= main_x 26), 34741#(<= main_x 27), 34742#(<= main_x 28), 34743#(<= main_x 29), 34744#(<= main_x 30), 34745#(<= main_x 31), 34746#(<= main_x 32), 34747#(<= main_x 33), 34748#(<= main_x 34), 34749#(<= main_x 35), 34750#(<= main_x 36), 34751#(<= main_x 37), 34752#(<= main_x 38), 34753#(<= main_x 39), 34754#(<= main_x 40), 34755#(<= main_x 41), 34756#(<= main_x 42), 34757#(<= main_x 43), 34758#(<= main_x 44), 34759#(<= main_x 45), 34760#(<= main_x 46), 34761#(<= main_x 47), 34762#(<= main_x 48), 34763#(<= main_x 49), 34764#(<= main_x 50), 34765#(<= main_x 51), 34766#(<= main_x 52), 34767#(<= main_x 53), 34768#(<= main_x 54), 34769#(<= main_x 55), 34770#(<= main_x 56), 34771#(<= main_x 57), 34772#(<= main_x 58), 34773#(<= main_x 59), 34774#(<= main_x 60), 34775#(<= main_x 61), 34776#(<= main_x 62), 34777#(<= main_x 63), 34778#(<= main_x 64), 34779#(<= main_x 65), 34780#(<= main_x 66), 34781#(<= main_x 67), 34782#(<= main_x 68), 34783#(<= main_x 69), 34784#(<= main_x 70), 34785#(<= main_x 71), 34786#(<= main_x 72), 34787#(<= main_x 73), 34788#(<= main_x 74), 34789#(<= main_x 75), 34790#(<= main_x 76), 34791#(<= main_x 77), 34792#(<= main_x 78), 34793#(<= main_x 79), 34794#(<= main_x 80), 34795#(<= main_x 81), 34796#(<= main_x 82), 34797#(<= main_x 83), 34798#(<= main_x 84), 34799#(<= main_x 85), 34800#(<= main_x 86), 34801#(<= main_x 87), 34802#(<= main_x 88), 34803#(<= main_x 89), 34804#(<= main_x 90), 34805#(<= main_x 91), 34806#(<= main_x 92), 34807#(<= main_x 93), 34808#(<= main_x 94), 34809#(<= main_x 95), 34810#(<= main_x 96), 34811#(<= main_x 97), 34812#(<= main_x 98), 34813#(<= main_x 99), 34814#(<= main_x 100), 34815#(<= main_x 101)] [2018-07-23 13:55:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,289 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:55:15,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:55:15,290 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:55:15,291 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand 116 states. [2018-07-23 13:55:15,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:15,399 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-07-23 13:55:15,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:55:15,399 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 116 [2018-07-23 13:55:15,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:15,400 INFO L225 Difference]: With dead ends: 120 [2018-07-23 13:55:15,400 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:55:15,401 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:55:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:55:15,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-07-23 13:55:15,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 13:55:15,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2018-07-23 13:55:15,404 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 116 [2018-07-23 13:55:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:15,404 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2018-07-23 13:55:15,404 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:55:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2018-07-23 13:55:15,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 13:55:15,405 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:15,405 INFO L357 BasicCegarLoop]: trace histogram [114, 1, 1, 1] [2018-07-23 13:55:15,405 INFO L414 AbstractCegarLoop]: === Iteration 115 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:15,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1970439200, now seen corresponding path program 114 times [2018-07-23 13:55:15,406 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,796 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:15,796 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2018-07-23 13:55:15,796 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,797 INFO L185 omatonBuilderFactory]: Interpolants [35328#(<= main_x 22), 35329#(<= main_x 23), 35330#(<= main_x 24), 35331#(<= main_x 25), 35332#(<= main_x 26), 35333#(<= main_x 27), 35334#(<= main_x 28), 35335#(<= main_x 29), 35336#(<= main_x 30), 35337#(<= main_x 31), 35338#(<= main_x 32), 35339#(<= main_x 33), 35340#(<= main_x 34), 35341#(<= main_x 35), 35342#(<= main_x 36), 35343#(<= main_x 37), 35344#(<= main_x 38), 35345#(<= main_x 39), 35346#(<= main_x 40), 35347#(<= main_x 41), 35348#(<= main_x 42), 35349#(<= main_x 43), 35350#(<= main_x 44), 35351#(<= main_x 45), 35352#(<= main_x 46), 35353#(<= main_x 47), 35354#(<= main_x 48), 35355#(<= main_x 49), 35356#(<= main_x 50), 35357#(<= main_x 51), 35358#(<= main_x 52), 35359#(<= main_x 53), 35360#(<= main_x 54), 35361#(<= main_x 55), 35362#(<= main_x 56), 35363#(<= main_x 57), 35364#(<= main_x 58), 35365#(<= main_x 59), 35366#(<= main_x 60), 35367#(<= main_x 61), 35368#(<= main_x 62), 35369#(<= main_x 63), 35370#(<= main_x 64), 35371#(<= main_x 65), 35372#(<= main_x 66), 35373#(<= main_x 67), 35374#(<= main_x 68), 35375#(<= main_x 69), 35376#(<= main_x 70), 35377#(<= main_x 71), 35378#(<= main_x 72), 35379#(<= main_x 73), 35380#(<= main_x 74), 35381#(<= main_x 75), 35382#(<= main_x 76), 35383#(<= main_x 77), 35384#(<= main_x 78), 35385#(<= main_x 79), 35386#(<= main_x 80), 35387#(<= main_x 81), 35388#(<= main_x 82), 35389#(<= main_x 83), 35390#(<= main_x 84), 35391#(<= main_x 85), 35392#(<= main_x 86), 35393#(<= main_x 87), 35394#(<= main_x 88), 35395#(<= main_x 89), 35396#(<= main_x 90), 35397#(<= main_x 91), 35398#(<= main_x 92), 35399#(<= main_x 93), 35400#(<= main_x 94), 35401#(<= main_x 95), 35402#(<= main_x 96), 35403#(<= main_x 97), 35404#(<= main_x 98), 35405#(<= main_x 99), 35406#(<= main_x 100), 35407#(<= main_x 101), 35408#(<= main_x 102), 35409#(<= main_x 103), 35410#(<= main_x 104), 35411#(<= main_x 105), 35412#(<= main_x 106), 35413#(<= main_x 107), 35414#(<= main_x 108), 35415#(<= main_x 109), 35416#(<= main_x 110), 35417#(<= main_x 111), 35418#(<= main_x 112), 35419#(<= main_x 113), 35420#(<= main_x 114), 35304#true, 35305#false, 35306#(<= main_x 0), 35307#(<= main_x 1), 35308#(<= main_x 2), 35309#(<= main_x 3), 35310#(<= main_x 4), 35311#(<= main_x 5), 35312#(<= main_x 6), 35313#(<= main_x 7), 35314#(<= main_x 8), 35315#(<= main_x 9), 35316#(<= main_x 10), 35317#(<= main_x 11), 35318#(<= main_x 12), 35319#(<= main_x 13), 35320#(<= main_x 14), 35321#(<= main_x 15), 35322#(<= main_x 16), 35323#(<= main_x 17), 35324#(<= main_x 18), 35325#(<= main_x 19), 35326#(<= main_x 20), 35327#(<= main_x 21)] [2018-07-23 13:55:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,798 INFO L450 AbstractCegarLoop]: Interpolant automaton has 117 states [2018-07-23 13:55:15,799 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2018-07-23 13:55:15,799 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:55:15,800 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 117 states. [2018-07-23 13:55:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:15,926 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2018-07-23 13:55:15,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-07-23 13:55:15,926 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 117 [2018-07-23 13:55:15,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:15,927 INFO L225 Difference]: With dead ends: 121 [2018-07-23 13:55:15,927 INFO L226 Difference]: Without dead ends: 119 [2018-07-23 13:55:15,928 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:55:15,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-07-23 13:55:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-07-23 13:55:15,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-07-23 13:55:15,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2018-07-23 13:55:15,932 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 117 [2018-07-23 13:55:15,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:15,932 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2018-07-23 13:55:15,933 INFO L472 AbstractCegarLoop]: Interpolant automaton has 117 states. [2018-07-23 13:55:15,933 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2018-07-23 13:55:15,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-23 13:55:15,933 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:15,934 INFO L357 BasicCegarLoop]: trace histogram [115, 1, 1, 1] [2018-07-23 13:55:15,934 INFO L414 AbstractCegarLoop]: === Iteration 116 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:15,934 INFO L82 PathProgramCache]: Analyzing trace with hash 954069190, now seen corresponding path program 115 times [2018-07-23 13:55:15,934 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 6670 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:16,419 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:16,419 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:55:16,419 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:16,420 INFO L185 omatonBuilderFactory]: Interpolants [35901#true, 35902#false, 35903#(<= main_x 0), 35904#(<= main_x 1), 35905#(<= main_x 2), 35906#(<= main_x 3), 35907#(<= main_x 4), 35908#(<= main_x 5), 35909#(<= main_x 6), 35910#(<= main_x 7), 35911#(<= main_x 8), 35912#(<= main_x 9), 35913#(<= main_x 10), 35914#(<= main_x 11), 35915#(<= main_x 12), 35916#(<= main_x 13), 35917#(<= main_x 14), 35918#(<= main_x 15), 35919#(<= main_x 16), 35920#(<= main_x 17), 35921#(<= main_x 18), 35922#(<= main_x 19), 35923#(<= main_x 20), 35924#(<= main_x 21), 35925#(<= main_x 22), 35926#(<= main_x 23), 35927#(<= main_x 24), 35928#(<= main_x 25), 35929#(<= main_x 26), 35930#(<= main_x 27), 35931#(<= main_x 28), 35932#(<= main_x 29), 35933#(<= main_x 30), 35934#(<= main_x 31), 35935#(<= main_x 32), 35936#(<= main_x 33), 35937#(<= main_x 34), 35938#(<= main_x 35), 35939#(<= main_x 36), 35940#(<= main_x 37), 35941#(<= main_x 38), 35942#(<= main_x 39), 35943#(<= main_x 40), 35944#(<= main_x 41), 35945#(<= main_x 42), 35946#(<= main_x 43), 35947#(<= main_x 44), 35948#(<= main_x 45), 35949#(<= main_x 46), 35950#(<= main_x 47), 35951#(<= main_x 48), 35952#(<= main_x 49), 35953#(<= main_x 50), 35954#(<= main_x 51), 35955#(<= main_x 52), 35956#(<= main_x 53), 35957#(<= main_x 54), 35958#(<= main_x 55), 35959#(<= main_x 56), 35960#(<= main_x 57), 35961#(<= main_x 58), 35962#(<= main_x 59), 35963#(<= main_x 60), 35964#(<= main_x 61), 35965#(<= main_x 62), 35966#(<= main_x 63), 35967#(<= main_x 64), 35968#(<= main_x 65), 35969#(<= main_x 66), 35970#(<= main_x 67), 35971#(<= main_x 68), 35972#(<= main_x 69), 35973#(<= main_x 70), 35974#(<= main_x 71), 35975#(<= main_x 72), 35976#(<= main_x 73), 35977#(<= main_x 74), 35978#(<= main_x 75), 35979#(<= main_x 76), 35980#(<= main_x 77), 35981#(<= main_x 78), 35982#(<= main_x 79), 35983#(<= main_x 80), 35984#(<= main_x 81), 35985#(<= main_x 82), 35986#(<= main_x 83), 35987#(<= main_x 84), 35988#(<= main_x 85), 35989#(<= main_x 86), 35990#(<= main_x 87), 35991#(<= main_x 88), 35992#(<= main_x 89), 35993#(<= main_x 90), 35994#(<= main_x 91), 35995#(<= main_x 92), 35996#(<= main_x 93), 35997#(<= main_x 94), 35998#(<= main_x 95), 35999#(<= main_x 96), 36000#(<= main_x 97), 36001#(<= main_x 98), 36002#(<= main_x 99), 36003#(<= main_x 100), 36004#(<= main_x 101), 36005#(<= main_x 102), 36006#(<= main_x 103), 36007#(<= main_x 104), 36008#(<= main_x 105), 36009#(<= main_x 106), 36010#(<= main_x 107), 36011#(<= main_x 108), 36012#(<= main_x 109), 36013#(<= main_x 110), 36014#(<= main_x 111), 36015#(<= main_x 112), 36016#(<= main_x 113), 36017#(<= main_x 114), 36018#(<= main_x 115)] [2018-07-23 13:55:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6670 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:16,420 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:55:16,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:55:16,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:55:16,421 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand 118 states. [2018-07-23 13:55:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:16,560 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2018-07-23 13:55:16,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:55:16,560 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 118 [2018-07-23 13:55:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:16,561 INFO L225 Difference]: With dead ends: 122 [2018-07-23 13:55:16,561 INFO L226 Difference]: Without dead ends: 120 [2018-07-23 13:55:16,562 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:55:16,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-07-23 13:55:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-07-23 13:55:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-07-23 13:55:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2018-07-23 13:55:16,565 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 118 [2018-07-23 13:55:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:16,565 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2018-07-23 13:55:16,565 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:55:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2018-07-23 13:55:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 13:55:16,566 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:16,566 INFO L357 BasicCegarLoop]: trace histogram [116, 1, 1, 1] [2018-07-23 13:55:16,566 INFO L414 AbstractCegarLoop]: === Iteration 117 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:16,566 INFO L82 PathProgramCache]: Analyzing trace with hash -488630048, now seen corresponding path program 116 times [2018-07-23 13:55:16,567 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,132 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:17,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-07-23 13:55:17,133 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,133 INFO L185 omatonBuilderFactory]: Interpolants [36608#(<= main_x 103), 36609#(<= main_x 104), 36610#(<= main_x 105), 36611#(<= main_x 106), 36612#(<= main_x 107), 36613#(<= main_x 108), 36614#(<= main_x 109), 36615#(<= main_x 110), 36616#(<= main_x 111), 36617#(<= main_x 112), 36618#(<= main_x 113), 36619#(<= main_x 114), 36620#(<= main_x 115), 36621#(<= main_x 116), 36503#true, 36504#false, 36505#(<= main_x 0), 36506#(<= main_x 1), 36507#(<= main_x 2), 36508#(<= main_x 3), 36509#(<= main_x 4), 36510#(<= main_x 5), 36511#(<= main_x 6), 36512#(<= main_x 7), 36513#(<= main_x 8), 36514#(<= main_x 9), 36515#(<= main_x 10), 36516#(<= main_x 11), 36517#(<= main_x 12), 36518#(<= main_x 13), 36519#(<= main_x 14), 36520#(<= main_x 15), 36521#(<= main_x 16), 36522#(<= main_x 17), 36523#(<= main_x 18), 36524#(<= main_x 19), 36525#(<= main_x 20), 36526#(<= main_x 21), 36527#(<= main_x 22), 36528#(<= main_x 23), 36529#(<= main_x 24), 36530#(<= main_x 25), 36531#(<= main_x 26), 36532#(<= main_x 27), 36533#(<= main_x 28), 36534#(<= main_x 29), 36535#(<= main_x 30), 36536#(<= main_x 31), 36537#(<= main_x 32), 36538#(<= main_x 33), 36539#(<= main_x 34), 36540#(<= main_x 35), 36541#(<= main_x 36), 36542#(<= main_x 37), 36543#(<= main_x 38), 36544#(<= main_x 39), 36545#(<= main_x 40), 36546#(<= main_x 41), 36547#(<= main_x 42), 36548#(<= main_x 43), 36549#(<= main_x 44), 36550#(<= main_x 45), 36551#(<= main_x 46), 36552#(<= main_x 47), 36553#(<= main_x 48), 36554#(<= main_x 49), 36555#(<= main_x 50), 36556#(<= main_x 51), 36557#(<= main_x 52), 36558#(<= main_x 53), 36559#(<= main_x 54), 36560#(<= main_x 55), 36561#(<= main_x 56), 36562#(<= main_x 57), 36563#(<= main_x 58), 36564#(<= main_x 59), 36565#(<= main_x 60), 36566#(<= main_x 61), 36567#(<= main_x 62), 36568#(<= main_x 63), 36569#(<= main_x 64), 36570#(<= main_x 65), 36571#(<= main_x 66), 36572#(<= main_x 67), 36573#(<= main_x 68), 36574#(<= main_x 69), 36575#(<= main_x 70), 36576#(<= main_x 71), 36577#(<= main_x 72), 36578#(<= main_x 73), 36579#(<= main_x 74), 36580#(<= main_x 75), 36581#(<= main_x 76), 36582#(<= main_x 77), 36583#(<= main_x 78), 36584#(<= main_x 79), 36585#(<= main_x 80), 36586#(<= main_x 81), 36587#(<= main_x 82), 36588#(<= main_x 83), 36589#(<= main_x 84), 36590#(<= main_x 85), 36591#(<= main_x 86), 36592#(<= main_x 87), 36593#(<= main_x 88), 36594#(<= main_x 89), 36595#(<= main_x 90), 36596#(<= main_x 91), 36597#(<= main_x 92), 36598#(<= main_x 93), 36599#(<= main_x 94), 36600#(<= main_x 95), 36601#(<= main_x 96), 36602#(<= main_x 97), 36603#(<= main_x 98), 36604#(<= main_x 99), 36605#(<= main_x 100), 36606#(<= main_x 101), 36607#(<= main_x 102)] [2018-07-23 13:55:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-07-23 13:55:17,135 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-07-23 13:55:17,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:55:17,136 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand 119 states. [2018-07-23 13:55:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:17,251 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-07-23 13:55:17,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-07-23 13:55:17,251 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 119 [2018-07-23 13:55:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:17,252 INFO L225 Difference]: With dead ends: 123 [2018-07-23 13:55:17,252 INFO L226 Difference]: Without dead ends: 121 [2018-07-23 13:55:17,253 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:55:17,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-07-23 13:55:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-07-23 13:55:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-07-23 13:55:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2018-07-23 13:55:17,256 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 119 [2018-07-23 13:55:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:17,256 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2018-07-23 13:55:17,256 INFO L472 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-07-23 13:55:17,256 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2018-07-23 13:55:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-23 13:55:17,257 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:17,257 INFO L357 BasicCegarLoop]: trace histogram [117, 1, 1, 1] [2018-07-23 13:55:17,257 INFO L414 AbstractCegarLoop]: === Iteration 118 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:17,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2032333830, now seen corresponding path program 117 times [2018-07-23 13:55:17,258 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 6903 backedges. 0 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,617 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:17,617 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:55:17,617 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,618 INFO L185 omatonBuilderFactory]: Interpolants [37120#(<= main_x 8), 37121#(<= main_x 9), 37122#(<= main_x 10), 37123#(<= main_x 11), 37124#(<= main_x 12), 37125#(<= main_x 13), 37126#(<= main_x 14), 37127#(<= main_x 15), 37128#(<= main_x 16), 37129#(<= main_x 17), 37130#(<= main_x 18), 37131#(<= main_x 19), 37132#(<= main_x 20), 37133#(<= main_x 21), 37134#(<= main_x 22), 37135#(<= main_x 23), 37136#(<= main_x 24), 37137#(<= main_x 25), 37138#(<= main_x 26), 37139#(<= main_x 27), 37140#(<= main_x 28), 37141#(<= main_x 29), 37142#(<= main_x 30), 37143#(<= main_x 31), 37144#(<= main_x 32), 37145#(<= main_x 33), 37146#(<= main_x 34), 37147#(<= main_x 35), 37148#(<= main_x 36), 37149#(<= main_x 37), 37150#(<= main_x 38), 37151#(<= main_x 39), 37152#(<= main_x 40), 37153#(<= main_x 41), 37154#(<= main_x 42), 37155#(<= main_x 43), 37156#(<= main_x 44), 37157#(<= main_x 45), 37158#(<= main_x 46), 37159#(<= main_x 47), 37160#(<= main_x 48), 37161#(<= main_x 49), 37162#(<= main_x 50), 37163#(<= main_x 51), 37164#(<= main_x 52), 37165#(<= main_x 53), 37166#(<= main_x 54), 37167#(<= main_x 55), 37168#(<= main_x 56), 37169#(<= main_x 57), 37170#(<= main_x 58), 37171#(<= main_x 59), 37172#(<= main_x 60), 37173#(<= main_x 61), 37174#(<= main_x 62), 37175#(<= main_x 63), 37176#(<= main_x 64), 37177#(<= main_x 65), 37178#(<= main_x 66), 37179#(<= main_x 67), 37180#(<= main_x 68), 37181#(<= main_x 69), 37182#(<= main_x 70), 37183#(<= main_x 71), 37184#(<= main_x 72), 37185#(<= main_x 73), 37186#(<= main_x 74), 37187#(<= main_x 75), 37188#(<= main_x 76), 37189#(<= main_x 77), 37190#(<= main_x 78), 37191#(<= main_x 79), 37192#(<= main_x 80), 37193#(<= main_x 81), 37194#(<= main_x 82), 37195#(<= main_x 83), 37196#(<= main_x 84), 37197#(<= main_x 85), 37198#(<= main_x 86), 37199#(<= main_x 87), 37200#(<= main_x 88), 37201#(<= main_x 89), 37202#(<= main_x 90), 37203#(<= main_x 91), 37204#(<= main_x 92), 37205#(<= main_x 93), 37206#(<= main_x 94), 37207#(<= main_x 95), 37208#(<= main_x 96), 37209#(<= main_x 97), 37210#(<= main_x 98), 37211#(<= main_x 99), 37212#(<= main_x 100), 37213#(<= main_x 101), 37214#(<= main_x 102), 37215#(<= main_x 103), 37216#(<= main_x 104), 37217#(<= main_x 105), 37218#(<= main_x 106), 37219#(<= main_x 107), 37220#(<= main_x 108), 37221#(<= main_x 109), 37222#(<= main_x 110), 37223#(<= main_x 111), 37224#(<= main_x 112), 37225#(<= main_x 113), 37226#(<= main_x 114), 37227#(<= main_x 115), 37228#(<= main_x 116), 37229#(<= main_x 117), 37110#true, 37111#false, 37112#(<= main_x 0), 37113#(<= main_x 1), 37114#(<= main_x 2), 37115#(<= main_x 3), 37116#(<= main_x 4), 37117#(<= main_x 5), 37118#(<= main_x 6), 37119#(<= main_x 7)] [2018-07-23 13:55:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 6903 backedges. 0 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,619 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:55:17,620 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:55:17,621 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:55:17,621 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand 120 states. [2018-07-23 13:55:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:17,813 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2018-07-23 13:55:17,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:55:17,813 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 120 [2018-07-23 13:55:17,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:17,813 INFO L225 Difference]: With dead ends: 124 [2018-07-23 13:55:17,814 INFO L226 Difference]: Without dead ends: 122 [2018-07-23 13:55:17,815 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:55:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-07-23 13:55:17,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-07-23 13:55:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-07-23 13:55:17,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-07-23 13:55:17,818 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 120 [2018-07-23 13:55:17,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:17,818 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-07-23 13:55:17,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:55:17,818 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-07-23 13:55:17,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-23 13:55:17,819 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:17,819 INFO L357 BasicCegarLoop]: trace histogram [118, 1, 1, 1] [2018-07-23 13:55:17,819 INFO L414 AbstractCegarLoop]: === Iteration 119 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:17,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1422164576, now seen corresponding path program 118 times [2018-07-23 13:55:17,819 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:18,213 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:18,213 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:18,213 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2018-07-23 13:55:18,213 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:18,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:18,214 INFO L185 omatonBuilderFactory]: Interpolants [37722#true, 37723#false, 37724#(<= main_x 0), 37725#(<= main_x 1), 37726#(<= main_x 2), 37727#(<= main_x 3), 37728#(<= main_x 4), 37729#(<= main_x 5), 37730#(<= main_x 6), 37731#(<= main_x 7), 37732#(<= main_x 8), 37733#(<= main_x 9), 37734#(<= main_x 10), 37735#(<= main_x 11), 37736#(<= main_x 12), 37737#(<= main_x 13), 37738#(<= main_x 14), 37739#(<= main_x 15), 37740#(<= main_x 16), 37741#(<= main_x 17), 37742#(<= main_x 18), 37743#(<= main_x 19), 37744#(<= main_x 20), 37745#(<= main_x 21), 37746#(<= main_x 22), 37747#(<= main_x 23), 37748#(<= main_x 24), 37749#(<= main_x 25), 37750#(<= main_x 26), 37751#(<= main_x 27), 37752#(<= main_x 28), 37753#(<= main_x 29), 37754#(<= main_x 30), 37755#(<= main_x 31), 37756#(<= main_x 32), 37757#(<= main_x 33), 37758#(<= main_x 34), 37759#(<= main_x 35), 37760#(<= main_x 36), 37761#(<= main_x 37), 37762#(<= main_x 38), 37763#(<= main_x 39), 37764#(<= main_x 40), 37765#(<= main_x 41), 37766#(<= main_x 42), 37767#(<= main_x 43), 37768#(<= main_x 44), 37769#(<= main_x 45), 37770#(<= main_x 46), 37771#(<= main_x 47), 37772#(<= main_x 48), 37773#(<= main_x 49), 37774#(<= main_x 50), 37775#(<= main_x 51), 37776#(<= main_x 52), 37777#(<= main_x 53), 37778#(<= main_x 54), 37779#(<= main_x 55), 37780#(<= main_x 56), 37781#(<= main_x 57), 37782#(<= main_x 58), 37783#(<= main_x 59), 37784#(<= main_x 60), 37785#(<= main_x 61), 37786#(<= main_x 62), 37787#(<= main_x 63), 37788#(<= main_x 64), 37789#(<= main_x 65), 37790#(<= main_x 66), 37791#(<= main_x 67), 37792#(<= main_x 68), 37793#(<= main_x 69), 37794#(<= main_x 70), 37795#(<= main_x 71), 37796#(<= main_x 72), 37797#(<= main_x 73), 37798#(<= main_x 74), 37799#(<= main_x 75), 37800#(<= main_x 76), 37801#(<= main_x 77), 37802#(<= main_x 78), 37803#(<= main_x 79), 37804#(<= main_x 80), 37805#(<= main_x 81), 37806#(<= main_x 82), 37807#(<= main_x 83), 37808#(<= main_x 84), 37809#(<= main_x 85), 37810#(<= main_x 86), 37811#(<= main_x 87), 37812#(<= main_x 88), 37813#(<= main_x 89), 37814#(<= main_x 90), 37815#(<= main_x 91), 37816#(<= main_x 92), 37817#(<= main_x 93), 37818#(<= main_x 94), 37819#(<= main_x 95), 37820#(<= main_x 96), 37821#(<= main_x 97), 37822#(<= main_x 98), 37823#(<= main_x 99), 37824#(<= main_x 100), 37825#(<= main_x 101), 37826#(<= main_x 102), 37827#(<= main_x 103), 37828#(<= main_x 104), 37829#(<= main_x 105), 37830#(<= main_x 106), 37831#(<= main_x 107), 37832#(<= main_x 108), 37833#(<= main_x 109), 37834#(<= main_x 110), 37835#(<= main_x 111), 37836#(<= main_x 112), 37837#(<= main_x 113), 37838#(<= main_x 114), 37839#(<= main_x 115), 37840#(<= main_x 116), 37841#(<= main_x 117), 37842#(<= main_x 118)] [2018-07-23 13:55:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:18,215 INFO L450 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-07-23 13:55:18,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-07-23 13:55:18,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:55:18,216 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 121 states. [2018-07-23 13:55:18,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:18,350 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-07-23 13:55:18,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-07-23 13:55:18,350 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 121 [2018-07-23 13:55:18,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:18,350 INFO L225 Difference]: With dead ends: 125 [2018-07-23 13:55:18,351 INFO L226 Difference]: Without dead ends: 123 [2018-07-23 13:55:18,351 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:55:18,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-07-23 13:55:18,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-07-23 13:55:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-07-23 13:55:18,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 123 transitions. [2018-07-23 13:55:18,354 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 123 transitions. Word has length 121 [2018-07-23 13:55:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:18,355 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 123 transitions. [2018-07-23 13:55:18,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-07-23 13:55:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 123 transitions. [2018-07-23 13:55:18,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 13:55:18,356 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:18,356 INFO L357 BasicCegarLoop]: trace histogram [119, 1, 1, 1] [2018-07-23 13:55:18,356 INFO L414 AbstractCegarLoop]: === Iteration 120 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:18,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1137432762, now seen corresponding path program 119 times [2018-07-23 13:55:18,356 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:18,785 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:18,785 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:55:18,785 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:18,785 INFO L185 omatonBuilderFactory]: Interpolants [38400#(<= main_x 59), 38401#(<= main_x 60), 38402#(<= main_x 61), 38403#(<= main_x 62), 38404#(<= main_x 63), 38405#(<= main_x 64), 38406#(<= main_x 65), 38407#(<= main_x 66), 38408#(<= main_x 67), 38409#(<= main_x 68), 38410#(<= main_x 69), 38411#(<= main_x 70), 38412#(<= main_x 71), 38413#(<= main_x 72), 38414#(<= main_x 73), 38415#(<= main_x 74), 38416#(<= main_x 75), 38417#(<= main_x 76), 38418#(<= main_x 77), 38419#(<= main_x 78), 38420#(<= main_x 79), 38421#(<= main_x 80), 38422#(<= main_x 81), 38423#(<= main_x 82), 38424#(<= main_x 83), 38425#(<= main_x 84), 38426#(<= main_x 85), 38427#(<= main_x 86), 38428#(<= main_x 87), 38429#(<= main_x 88), 38430#(<= main_x 89), 38431#(<= main_x 90), 38432#(<= main_x 91), 38433#(<= main_x 92), 38434#(<= main_x 93), 38435#(<= main_x 94), 38436#(<= main_x 95), 38437#(<= main_x 96), 38438#(<= main_x 97), 38439#(<= main_x 98), 38440#(<= main_x 99), 38441#(<= main_x 100), 38442#(<= main_x 101), 38443#(<= main_x 102), 38444#(<= main_x 103), 38445#(<= main_x 104), 38446#(<= main_x 105), 38447#(<= main_x 106), 38448#(<= main_x 107), 38449#(<= main_x 108), 38450#(<= main_x 109), 38451#(<= main_x 110), 38452#(<= main_x 111), 38453#(<= main_x 112), 38454#(<= main_x 113), 38455#(<= main_x 114), 38456#(<= main_x 115), 38457#(<= main_x 116), 38458#(<= main_x 117), 38459#(<= main_x 118), 38460#(<= main_x 119), 38339#true, 38340#false, 38341#(<= main_x 0), 38342#(<= main_x 1), 38343#(<= main_x 2), 38344#(<= main_x 3), 38345#(<= main_x 4), 38346#(<= main_x 5), 38347#(<= main_x 6), 38348#(<= main_x 7), 38349#(<= main_x 8), 38350#(<= main_x 9), 38351#(<= main_x 10), 38352#(<= main_x 11), 38353#(<= main_x 12), 38354#(<= main_x 13), 38355#(<= main_x 14), 38356#(<= main_x 15), 38357#(<= main_x 16), 38358#(<= main_x 17), 38359#(<= main_x 18), 38360#(<= main_x 19), 38361#(<= main_x 20), 38362#(<= main_x 21), 38363#(<= main_x 22), 38364#(<= main_x 23), 38365#(<= main_x 24), 38366#(<= main_x 25), 38367#(<= main_x 26), 38368#(<= main_x 27), 38369#(<= main_x 28), 38370#(<= main_x 29), 38371#(<= main_x 30), 38372#(<= main_x 31), 38373#(<= main_x 32), 38374#(<= main_x 33), 38375#(<= main_x 34), 38376#(<= main_x 35), 38377#(<= main_x 36), 38378#(<= main_x 37), 38379#(<= main_x 38), 38380#(<= main_x 39), 38381#(<= main_x 40), 38382#(<= main_x 41), 38383#(<= main_x 42), 38384#(<= main_x 43), 38385#(<= main_x 44), 38386#(<= main_x 45), 38387#(<= main_x 46), 38388#(<= main_x 47), 38389#(<= main_x 48), 38390#(<= main_x 49), 38391#(<= main_x 50), 38392#(<= main_x 51), 38393#(<= main_x 52), 38394#(<= main_x 53), 38395#(<= main_x 54), 38396#(<= main_x 55), 38397#(<= main_x 56), 38398#(<= main_x 57), 38399#(<= main_x 58)] [2018-07-23 13:55:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:18,786 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:55:18,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:55:18,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:55:18,788 INFO L87 Difference]: Start difference. First operand 123 states and 123 transitions. Second operand 122 states. [2018-07-23 13:55:18,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:18,847 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2018-07-23 13:55:18,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:55:18,847 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 122 [2018-07-23 13:55:18,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:18,848 INFO L225 Difference]: With dead ends: 126 [2018-07-23 13:55:18,848 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:55:18,849 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:55:18,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:55:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-07-23 13:55:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-07-23 13:55:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-07-23 13:55:18,852 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 122 [2018-07-23 13:55:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:18,852 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-07-23 13:55:18,852 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:55:18,852 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-07-23 13:55:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-23 13:55:18,853 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:18,853 INFO L357 BasicCegarLoop]: trace histogram [120, 1, 1, 1] [2018-07-23 13:55:18,853 INFO L414 AbstractCegarLoop]: === Iteration 121 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:18,853 INFO L82 PathProgramCache]: Analyzing trace with hash -900681120, now seen corresponding path program 120 times [2018-07-23 13:55:18,853 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,254 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:19,255 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2018-07-23 13:55:19,255 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:19,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,255 INFO L185 omatonBuilderFactory]: Interpolants [38961#true, 38962#false, 38963#(<= main_x 0), 38964#(<= main_x 1), 38965#(<= main_x 2), 38966#(<= main_x 3), 38967#(<= main_x 4), 38968#(<= main_x 5), 38969#(<= main_x 6), 38970#(<= main_x 7), 38971#(<= main_x 8), 38972#(<= main_x 9), 38973#(<= main_x 10), 38974#(<= main_x 11), 38975#(<= main_x 12), 38976#(<= main_x 13), 38977#(<= main_x 14), 38978#(<= main_x 15), 38979#(<= main_x 16), 38980#(<= main_x 17), 38981#(<= main_x 18), 38982#(<= main_x 19), 38983#(<= main_x 20), 38984#(<= main_x 21), 38985#(<= main_x 22), 38986#(<= main_x 23), 38987#(<= main_x 24), 38988#(<= main_x 25), 38989#(<= main_x 26), 38990#(<= main_x 27), 38991#(<= main_x 28), 38992#(<= main_x 29), 38993#(<= main_x 30), 38994#(<= main_x 31), 38995#(<= main_x 32), 38996#(<= main_x 33), 38997#(<= main_x 34), 38998#(<= main_x 35), 38999#(<= main_x 36), 39000#(<= main_x 37), 39001#(<= main_x 38), 39002#(<= main_x 39), 39003#(<= main_x 40), 39004#(<= main_x 41), 39005#(<= main_x 42), 39006#(<= main_x 43), 39007#(<= main_x 44), 39008#(<= main_x 45), 39009#(<= main_x 46), 39010#(<= main_x 47), 39011#(<= main_x 48), 39012#(<= main_x 49), 39013#(<= main_x 50), 39014#(<= main_x 51), 39015#(<= main_x 52), 39016#(<= main_x 53), 39017#(<= main_x 54), 39018#(<= main_x 55), 39019#(<= main_x 56), 39020#(<= main_x 57), 39021#(<= main_x 58), 39022#(<= main_x 59), 39023#(<= main_x 60), 39024#(<= main_x 61), 39025#(<= main_x 62), 39026#(<= main_x 63), 39027#(<= main_x 64), 39028#(<= main_x 65), 39029#(<= main_x 66), 39030#(<= main_x 67), 39031#(<= main_x 68), 39032#(<= main_x 69), 39033#(<= main_x 70), 39034#(<= main_x 71), 39035#(<= main_x 72), 39036#(<= main_x 73), 39037#(<= main_x 74), 39038#(<= main_x 75), 39039#(<= main_x 76), 39040#(<= main_x 77), 39041#(<= main_x 78), 39042#(<= main_x 79), 39043#(<= main_x 80), 39044#(<= main_x 81), 39045#(<= main_x 82), 39046#(<= main_x 83), 39047#(<= main_x 84), 39048#(<= main_x 85), 39049#(<= main_x 86), 39050#(<= main_x 87), 39051#(<= main_x 88), 39052#(<= main_x 89), 39053#(<= main_x 90), 39054#(<= main_x 91), 39055#(<= main_x 92), 39056#(<= main_x 93), 39057#(<= main_x 94), 39058#(<= main_x 95), 39059#(<= main_x 96), 39060#(<= main_x 97), 39061#(<= main_x 98), 39062#(<= main_x 99), 39063#(<= main_x 100), 39064#(<= main_x 101), 39065#(<= main_x 102), 39066#(<= main_x 103), 39067#(<= main_x 104), 39068#(<= main_x 105), 39069#(<= main_x 106), 39070#(<= main_x 107), 39071#(<= main_x 108), 39072#(<= main_x 109), 39073#(<= main_x 110), 39074#(<= main_x 111), 39075#(<= main_x 112), 39076#(<= main_x 113), 39077#(<= main_x 114), 39078#(<= main_x 115), 39079#(<= main_x 116), 39080#(<= main_x 117), 39081#(<= main_x 118), 39082#(<= main_x 119), 39083#(<= main_x 120)] [2018-07-23 13:55:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,256 INFO L450 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-07-23 13:55:19,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-07-23 13:55:19,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:55:19,257 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 123 states. [2018-07-23 13:55:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:19,394 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2018-07-23 13:55:19,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-07-23 13:55:19,394 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 123 [2018-07-23 13:55:19,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:19,394 INFO L225 Difference]: With dead ends: 127 [2018-07-23 13:55:19,395 INFO L226 Difference]: Without dead ends: 125 [2018-07-23 13:55:19,395 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:55:19,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-07-23 13:55:19,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-07-23 13:55:19,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-07-23 13:55:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-07-23 13:55:19,399 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 123 [2018-07-23 13:55:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:19,399 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-07-23 13:55:19,399 INFO L472 AbstractCegarLoop]: Interpolant automaton has 123 states. [2018-07-23 13:55:19,399 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-07-23 13:55:19,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-23 13:55:19,400 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:19,400 INFO L357 BasicCegarLoop]: trace histogram [121, 1, 1, 1] [2018-07-23 13:55:19,400 INFO L414 AbstractCegarLoop]: === Iteration 122 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:19,400 INFO L82 PathProgramCache]: Analyzing trace with hash 2143652486, now seen corresponding path program 121 times [2018-07-23 13:55:19,400 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 7381 backedges. 0 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,780 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:19,780 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:55:19,780 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,780 INFO L185 omatonBuilderFactory]: Interpolants [39680#(<= main_x 90), 39681#(<= main_x 91), 39682#(<= main_x 92), 39683#(<= main_x 93), 39684#(<= main_x 94), 39685#(<= main_x 95), 39686#(<= main_x 96), 39687#(<= main_x 97), 39688#(<= main_x 98), 39689#(<= main_x 99), 39690#(<= main_x 100), 39691#(<= main_x 101), 39692#(<= main_x 102), 39693#(<= main_x 103), 39694#(<= main_x 104), 39695#(<= main_x 105), 39696#(<= main_x 106), 39697#(<= main_x 107), 39698#(<= main_x 108), 39699#(<= main_x 109), 39700#(<= main_x 110), 39701#(<= main_x 111), 39702#(<= main_x 112), 39703#(<= main_x 113), 39704#(<= main_x 114), 39705#(<= main_x 115), 39706#(<= main_x 116), 39707#(<= main_x 117), 39708#(<= main_x 118), 39709#(<= main_x 119), 39710#(<= main_x 120), 39711#(<= main_x 121), 39588#true, 39589#false, 39590#(<= main_x 0), 39591#(<= main_x 1), 39592#(<= main_x 2), 39593#(<= main_x 3), 39594#(<= main_x 4), 39595#(<= main_x 5), 39596#(<= main_x 6), 39597#(<= main_x 7), 39598#(<= main_x 8), 39599#(<= main_x 9), 39600#(<= main_x 10), 39601#(<= main_x 11), 39602#(<= main_x 12), 39603#(<= main_x 13), 39604#(<= main_x 14), 39605#(<= main_x 15), 39606#(<= main_x 16), 39607#(<= main_x 17), 39608#(<= main_x 18), 39609#(<= main_x 19), 39610#(<= main_x 20), 39611#(<= main_x 21), 39612#(<= main_x 22), 39613#(<= main_x 23), 39614#(<= main_x 24), 39615#(<= main_x 25), 39616#(<= main_x 26), 39617#(<= main_x 27), 39618#(<= main_x 28), 39619#(<= main_x 29), 39620#(<= main_x 30), 39621#(<= main_x 31), 39622#(<= main_x 32), 39623#(<= main_x 33), 39624#(<= main_x 34), 39625#(<= main_x 35), 39626#(<= main_x 36), 39627#(<= main_x 37), 39628#(<= main_x 38), 39629#(<= main_x 39), 39630#(<= main_x 40), 39631#(<= main_x 41), 39632#(<= main_x 42), 39633#(<= main_x 43), 39634#(<= main_x 44), 39635#(<= main_x 45), 39636#(<= main_x 46), 39637#(<= main_x 47), 39638#(<= main_x 48), 39639#(<= main_x 49), 39640#(<= main_x 50), 39641#(<= main_x 51), 39642#(<= main_x 52), 39643#(<= main_x 53), 39644#(<= main_x 54), 39645#(<= main_x 55), 39646#(<= main_x 56), 39647#(<= main_x 57), 39648#(<= main_x 58), 39649#(<= main_x 59), 39650#(<= main_x 60), 39651#(<= main_x 61), 39652#(<= main_x 62), 39653#(<= main_x 63), 39654#(<= main_x 64), 39655#(<= main_x 65), 39656#(<= main_x 66), 39657#(<= main_x 67), 39658#(<= main_x 68), 39659#(<= main_x 69), 39660#(<= main_x 70), 39661#(<= main_x 71), 39662#(<= main_x 72), 39663#(<= main_x 73), 39664#(<= main_x 74), 39665#(<= main_x 75), 39666#(<= main_x 76), 39667#(<= main_x 77), 39668#(<= main_x 78), 39669#(<= main_x 79), 39670#(<= main_x 80), 39671#(<= main_x 81), 39672#(<= main_x 82), 39673#(<= main_x 83), 39674#(<= main_x 84), 39675#(<= main_x 85), 39676#(<= main_x 86), 39677#(<= main_x 87), 39678#(<= main_x 88), 39679#(<= main_x 89)] [2018-07-23 13:55:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7381 backedges. 0 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,781 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:55:19,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:55:19,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:55:19,782 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 124 states. [2018-07-23 13:55:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:19,903 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-07-23 13:55:19,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:55:19,903 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 124 [2018-07-23 13:55:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:19,904 INFO L225 Difference]: With dead ends: 128 [2018-07-23 13:55:19,904 INFO L226 Difference]: Without dead ends: 126 [2018-07-23 13:55:19,905 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:55:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-07-23 13:55:19,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-07-23 13:55:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 13:55:19,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-07-23 13:55:19,912 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 124 [2018-07-23 13:55:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:19,912 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-07-23 13:55:19,912 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:55:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-07-23 13:55:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 13:55:19,916 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:19,916 INFO L357 BasicCegarLoop]: trace histogram [122, 1, 1, 1] [2018-07-23 13:55:19,916 INFO L414 AbstractCegarLoop]: === Iteration 123 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:19,917 INFO L82 PathProgramCache]: Analyzing trace with hash 2028713760, now seen corresponding path program 122 times [2018-07-23 13:55:19,917 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:20,477 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:20,477 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2018-07-23 13:55:20,477 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:20,477 INFO L185 omatonBuilderFactory]: Interpolants [40220#true, 40221#false, 40222#(<= main_x 0), 40223#(<= main_x 1), 40224#(<= main_x 2), 40225#(<= main_x 3), 40226#(<= main_x 4), 40227#(<= main_x 5), 40228#(<= main_x 6), 40229#(<= main_x 7), 40230#(<= main_x 8), 40231#(<= main_x 9), 40232#(<= main_x 10), 40233#(<= main_x 11), 40234#(<= main_x 12), 40235#(<= main_x 13), 40236#(<= main_x 14), 40237#(<= main_x 15), 40238#(<= main_x 16), 40239#(<= main_x 17), 40240#(<= main_x 18), 40241#(<= main_x 19), 40242#(<= main_x 20), 40243#(<= main_x 21), 40244#(<= main_x 22), 40245#(<= main_x 23), 40246#(<= main_x 24), 40247#(<= main_x 25), 40248#(<= main_x 26), 40249#(<= main_x 27), 40250#(<= main_x 28), 40251#(<= main_x 29), 40252#(<= main_x 30), 40253#(<= main_x 31), 40254#(<= main_x 32), 40255#(<= main_x 33), 40256#(<= main_x 34), 40257#(<= main_x 35), 40258#(<= main_x 36), 40259#(<= main_x 37), 40260#(<= main_x 38), 40261#(<= main_x 39), 40262#(<= main_x 40), 40263#(<= main_x 41), 40264#(<= main_x 42), 40265#(<= main_x 43), 40266#(<= main_x 44), 40267#(<= main_x 45), 40268#(<= main_x 46), 40269#(<= main_x 47), 40270#(<= main_x 48), 40271#(<= main_x 49), 40272#(<= main_x 50), 40273#(<= main_x 51), 40274#(<= main_x 52), 40275#(<= main_x 53), 40276#(<= main_x 54), 40277#(<= main_x 55), 40278#(<= main_x 56), 40279#(<= main_x 57), 40280#(<= main_x 58), 40281#(<= main_x 59), 40282#(<= main_x 60), 40283#(<= main_x 61), 40284#(<= main_x 62), 40285#(<= main_x 63), 40286#(<= main_x 64), 40287#(<= main_x 65), 40288#(<= main_x 66), 40289#(<= main_x 67), 40290#(<= main_x 68), 40291#(<= main_x 69), 40292#(<= main_x 70), 40293#(<= main_x 71), 40294#(<= main_x 72), 40295#(<= main_x 73), 40296#(<= main_x 74), 40297#(<= main_x 75), 40298#(<= main_x 76), 40299#(<= main_x 77), 40300#(<= main_x 78), 40301#(<= main_x 79), 40302#(<= main_x 80), 40303#(<= main_x 81), 40304#(<= main_x 82), 40305#(<= main_x 83), 40306#(<= main_x 84), 40307#(<= main_x 85), 40308#(<= main_x 86), 40309#(<= main_x 87), 40310#(<= main_x 88), 40311#(<= main_x 89), 40312#(<= main_x 90), 40313#(<= main_x 91), 40314#(<= main_x 92), 40315#(<= main_x 93), 40316#(<= main_x 94), 40317#(<= main_x 95), 40318#(<= main_x 96), 40319#(<= main_x 97), 40320#(<= main_x 98), 40321#(<= main_x 99), 40322#(<= main_x 100), 40323#(<= main_x 101), 40324#(<= main_x 102), 40325#(<= main_x 103), 40326#(<= main_x 104), 40327#(<= main_x 105), 40328#(<= main_x 106), 40329#(<= main_x 107), 40330#(<= main_x 108), 40331#(<= main_x 109), 40332#(<= main_x 110), 40333#(<= main_x 111), 40334#(<= main_x 112), 40335#(<= main_x 113), 40336#(<= main_x 114), 40337#(<= main_x 115), 40338#(<= main_x 116), 40339#(<= main_x 117), 40340#(<= main_x 118), 40341#(<= main_x 119), 40342#(<= main_x 120), 40343#(<= main_x 121), 40344#(<= main_x 122)] [2018-07-23 13:55:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:20,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-07-23 13:55:20,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-07-23 13:55:20,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:55:20,480 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 125 states. [2018-07-23 13:55:20,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:20,634 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-07-23 13:55:20,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-07-23 13:55:20,634 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 125 [2018-07-23 13:55:20,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:20,634 INFO L225 Difference]: With dead ends: 129 [2018-07-23 13:55:20,635 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 13:55:20,635 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:55:20,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 13:55:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-07-23 13:55:20,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-07-23 13:55:20,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-07-23 13:55:20,638 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 125 [2018-07-23 13:55:20,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:20,638 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-07-23 13:55:20,638 INFO L472 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-07-23 13:55:20,638 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-07-23 13:55:20,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-23 13:55:20,639 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:20,639 INFO L357 BasicCegarLoop]: trace histogram [123, 1, 1, 1] [2018-07-23 13:55:20,639 INFO L414 AbstractCegarLoop]: === Iteration 124 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:20,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1534386746, now seen corresponding path program 123 times [2018-07-23 13:55:20,639 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:21,044 INFO L134 CoverageAnalysis]: Checked inductivity of 7626 backedges. 0 proven. 7626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,045 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:21,045 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:55:21,045 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,045 INFO L185 omatonBuilderFactory]: Interpolants [40960#(<= main_x 101), 40961#(<= main_x 102), 40962#(<= main_x 103), 40963#(<= main_x 104), 40964#(<= main_x 105), 40965#(<= main_x 106), 40966#(<= main_x 107), 40967#(<= main_x 108), 40968#(<= main_x 109), 40969#(<= main_x 110), 40970#(<= main_x 111), 40971#(<= main_x 112), 40972#(<= main_x 113), 40973#(<= main_x 114), 40974#(<= main_x 115), 40975#(<= main_x 116), 40976#(<= main_x 117), 40977#(<= main_x 118), 40978#(<= main_x 119), 40979#(<= main_x 120), 40980#(<= main_x 121), 40981#(<= main_x 122), 40982#(<= main_x 123), 40857#true, 40858#false, 40859#(<= main_x 0), 40860#(<= main_x 1), 40861#(<= main_x 2), 40862#(<= main_x 3), 40863#(<= main_x 4), 40864#(<= main_x 5), 40865#(<= main_x 6), 40866#(<= main_x 7), 40867#(<= main_x 8), 40868#(<= main_x 9), 40869#(<= main_x 10), 40870#(<= main_x 11), 40871#(<= main_x 12), 40872#(<= main_x 13), 40873#(<= main_x 14), 40874#(<= main_x 15), 40875#(<= main_x 16), 40876#(<= main_x 17), 40877#(<= main_x 18), 40878#(<= main_x 19), 40879#(<= main_x 20), 40880#(<= main_x 21), 40881#(<= main_x 22), 40882#(<= main_x 23), 40883#(<= main_x 24), 40884#(<= main_x 25), 40885#(<= main_x 26), 40886#(<= main_x 27), 40887#(<= main_x 28), 40888#(<= main_x 29), 40889#(<= main_x 30), 40890#(<= main_x 31), 40891#(<= main_x 32), 40892#(<= main_x 33), 40893#(<= main_x 34), 40894#(<= main_x 35), 40895#(<= main_x 36), 40896#(<= main_x 37), 40897#(<= main_x 38), 40898#(<= main_x 39), 40899#(<= main_x 40), 40900#(<= main_x 41), 40901#(<= main_x 42), 40902#(<= main_x 43), 40903#(<= main_x 44), 40904#(<= main_x 45), 40905#(<= main_x 46), 40906#(<= main_x 47), 40907#(<= main_x 48), 40908#(<= main_x 49), 40909#(<= main_x 50), 40910#(<= main_x 51), 40911#(<= main_x 52), 40912#(<= main_x 53), 40913#(<= main_x 54), 40914#(<= main_x 55), 40915#(<= main_x 56), 40916#(<= main_x 57), 40917#(<= main_x 58), 40918#(<= main_x 59), 40919#(<= main_x 60), 40920#(<= main_x 61), 40921#(<= main_x 62), 40922#(<= main_x 63), 40923#(<= main_x 64), 40924#(<= main_x 65), 40925#(<= main_x 66), 40926#(<= main_x 67), 40927#(<= main_x 68), 40928#(<= main_x 69), 40929#(<= main_x 70), 40930#(<= main_x 71), 40931#(<= main_x 72), 40932#(<= main_x 73), 40933#(<= main_x 74), 40934#(<= main_x 75), 40935#(<= main_x 76), 40936#(<= main_x 77), 40937#(<= main_x 78), 40938#(<= main_x 79), 40939#(<= main_x 80), 40940#(<= main_x 81), 40941#(<= main_x 82), 40942#(<= main_x 83), 40943#(<= main_x 84), 40944#(<= main_x 85), 40945#(<= main_x 86), 40946#(<= main_x 87), 40947#(<= main_x 88), 40948#(<= main_x 89), 40949#(<= main_x 90), 40950#(<= main_x 91), 40951#(<= main_x 92), 40952#(<= main_x 93), 40953#(<= main_x 94), 40954#(<= main_x 95), 40955#(<= main_x 96), 40956#(<= main_x 97), 40957#(<= main_x 98), 40958#(<= main_x 99), 40959#(<= main_x 100)] [2018-07-23 13:55:21,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7626 backedges. 0 proven. 7626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,046 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:55:21,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:55:21,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:55:21,048 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 126 states. [2018-07-23 13:55:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:21,141 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-07-23 13:55:21,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:55:21,141 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 126 [2018-07-23 13:55:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:21,141 INFO L225 Difference]: With dead ends: 130 [2018-07-23 13:55:21,141 INFO L226 Difference]: Without dead ends: 128 [2018-07-23 13:55:21,142 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:55:21,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-07-23 13:55:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-07-23 13:55:21,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-23 13:55:21,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2018-07-23 13:55:21,144 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 126 [2018-07-23 13:55:21,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:21,145 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2018-07-23 13:55:21,145 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:55:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2018-07-23 13:55:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-23 13:55:21,145 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:21,146 INFO L357 BasicCegarLoop]: trace histogram [124, 1, 1, 1] [2018-07-23 13:55:21,146 INFO L414 AbstractCegarLoop]: === Iteration 125 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:21,146 INFO L82 PathProgramCache]: Analyzing trace with hash -321352736, now seen corresponding path program 124 times [2018-07-23 13:55:21,146 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,515 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:21,515 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2018-07-23 13:55:21,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,516 INFO L185 omatonBuilderFactory]: Interpolants [41499#true, 41500#false, 41501#(<= main_x 0), 41502#(<= main_x 1), 41503#(<= main_x 2), 41504#(<= main_x 3), 41505#(<= main_x 4), 41506#(<= main_x 5), 41507#(<= main_x 6), 41508#(<= main_x 7), 41509#(<= main_x 8), 41510#(<= main_x 9), 41511#(<= main_x 10), 41512#(<= main_x 11), 41513#(<= main_x 12), 41514#(<= main_x 13), 41515#(<= main_x 14), 41516#(<= main_x 15), 41517#(<= main_x 16), 41518#(<= main_x 17), 41519#(<= main_x 18), 41520#(<= main_x 19), 41521#(<= main_x 20), 41522#(<= main_x 21), 41523#(<= main_x 22), 41524#(<= main_x 23), 41525#(<= main_x 24), 41526#(<= main_x 25), 41527#(<= main_x 26), 41528#(<= main_x 27), 41529#(<= main_x 28), 41530#(<= main_x 29), 41531#(<= main_x 30), 41532#(<= main_x 31), 41533#(<= main_x 32), 41534#(<= main_x 33), 41535#(<= main_x 34), 41536#(<= main_x 35), 41537#(<= main_x 36), 41538#(<= main_x 37), 41539#(<= main_x 38), 41540#(<= main_x 39), 41541#(<= main_x 40), 41542#(<= main_x 41), 41543#(<= main_x 42), 41544#(<= main_x 43), 41545#(<= main_x 44), 41546#(<= main_x 45), 41547#(<= main_x 46), 41548#(<= main_x 47), 41549#(<= main_x 48), 41550#(<= main_x 49), 41551#(<= main_x 50), 41552#(<= main_x 51), 41553#(<= main_x 52), 41554#(<= main_x 53), 41555#(<= main_x 54), 41556#(<= main_x 55), 41557#(<= main_x 56), 41558#(<= main_x 57), 41559#(<= main_x 58), 41560#(<= main_x 59), 41561#(<= main_x 60), 41562#(<= main_x 61), 41563#(<= main_x 62), 41564#(<= main_x 63), 41565#(<= main_x 64), 41566#(<= main_x 65), 41567#(<= main_x 66), 41568#(<= main_x 67), 41569#(<= main_x 68), 41570#(<= main_x 69), 41571#(<= main_x 70), 41572#(<= main_x 71), 41573#(<= main_x 72), 41574#(<= main_x 73), 41575#(<= main_x 74), 41576#(<= main_x 75), 41577#(<= main_x 76), 41578#(<= main_x 77), 41579#(<= main_x 78), 41580#(<= main_x 79), 41581#(<= main_x 80), 41582#(<= main_x 81), 41583#(<= main_x 82), 41584#(<= main_x 83), 41585#(<= main_x 84), 41586#(<= main_x 85), 41587#(<= main_x 86), 41588#(<= main_x 87), 41589#(<= main_x 88), 41590#(<= main_x 89), 41591#(<= main_x 90), 41592#(<= main_x 91), 41593#(<= main_x 92), 41594#(<= main_x 93), 41595#(<= main_x 94), 41596#(<= main_x 95), 41597#(<= main_x 96), 41598#(<= main_x 97), 41599#(<= main_x 98), 41600#(<= main_x 99), 41601#(<= main_x 100), 41602#(<= main_x 101), 41603#(<= main_x 102), 41604#(<= main_x 103), 41605#(<= main_x 104), 41606#(<= main_x 105), 41607#(<= main_x 106), 41608#(<= main_x 107), 41609#(<= main_x 108), 41610#(<= main_x 109), 41611#(<= main_x 110), 41612#(<= main_x 111), 41613#(<= main_x 112), 41614#(<= main_x 113), 41615#(<= main_x 114), 41616#(<= main_x 115), 41617#(<= main_x 116), 41618#(<= main_x 117), 41619#(<= main_x 118), 41620#(<= main_x 119), 41621#(<= main_x 120), 41622#(<= main_x 121), 41623#(<= main_x 122), 41624#(<= main_x 123), 41625#(<= main_x 124)] [2018-07-23 13:55:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 127 states [2018-07-23 13:55:21,518 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2018-07-23 13:55:21,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:55:21,519 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand 127 states. [2018-07-23 13:55:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:21,685 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-07-23 13:55:21,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2018-07-23 13:55:21,685 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 127 [2018-07-23 13:55:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:21,686 INFO L225 Difference]: With dead ends: 131 [2018-07-23 13:55:21,686 INFO L226 Difference]: Without dead ends: 129 [2018-07-23 13:55:21,687 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:55:21,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-07-23 13:55:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-07-23 13:55:21,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-07-23 13:55:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2018-07-23 13:55:21,690 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 127 [2018-07-23 13:55:21,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:21,690 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2018-07-23 13:55:21,690 INFO L472 AbstractCegarLoop]: Interpolant automaton has 127 states. [2018-07-23 13:55:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2018-07-23 13:55:21,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-23 13:55:21,691 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:21,691 INFO L357 BasicCegarLoop]: trace histogram [125, 1, 1, 1] [2018-07-23 13:55:21,691 INFO L414 AbstractCegarLoop]: === Iteration 126 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:21,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1372004090, now seen corresponding path program 125 times [2018-07-23 13:55:21,691 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:22,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:22,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2018-07-23 13:55:22,284 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:22,284 INFO L185 omatonBuilderFactory]: Interpolants [42240#(<= main_x 92), 42241#(<= main_x 93), 42242#(<= main_x 94), 42243#(<= main_x 95), 42244#(<= main_x 96), 42245#(<= main_x 97), 42246#(<= main_x 98), 42247#(<= main_x 99), 42248#(<= main_x 100), 42249#(<= main_x 101), 42250#(<= main_x 102), 42251#(<= main_x 103), 42252#(<= main_x 104), 42253#(<= main_x 105), 42254#(<= main_x 106), 42255#(<= main_x 107), 42256#(<= main_x 108), 42257#(<= main_x 109), 42258#(<= main_x 110), 42259#(<= main_x 111), 42260#(<= main_x 112), 42261#(<= main_x 113), 42262#(<= main_x 114), 42263#(<= main_x 115), 42264#(<= main_x 116), 42265#(<= main_x 117), 42266#(<= main_x 118), 42267#(<= main_x 119), 42268#(<= main_x 120), 42269#(<= main_x 121), 42270#(<= main_x 122), 42271#(<= main_x 123), 42272#(<= main_x 124), 42273#(<= main_x 125), 42146#true, 42147#false, 42148#(<= main_x 0), 42149#(<= main_x 1), 42150#(<= main_x 2), 42151#(<= main_x 3), 42152#(<= main_x 4), 42153#(<= main_x 5), 42154#(<= main_x 6), 42155#(<= main_x 7), 42156#(<= main_x 8), 42157#(<= main_x 9), 42158#(<= main_x 10), 42159#(<= main_x 11), 42160#(<= main_x 12), 42161#(<= main_x 13), 42162#(<= main_x 14), 42163#(<= main_x 15), 42164#(<= main_x 16), 42165#(<= main_x 17), 42166#(<= main_x 18), 42167#(<= main_x 19), 42168#(<= main_x 20), 42169#(<= main_x 21), 42170#(<= main_x 22), 42171#(<= main_x 23), 42172#(<= main_x 24), 42173#(<= main_x 25), 42174#(<= main_x 26), 42175#(<= main_x 27), 42176#(<= main_x 28), 42177#(<= main_x 29), 42178#(<= main_x 30), 42179#(<= main_x 31), 42180#(<= main_x 32), 42181#(<= main_x 33), 42182#(<= main_x 34), 42183#(<= main_x 35), 42184#(<= main_x 36), 42185#(<= main_x 37), 42186#(<= main_x 38), 42187#(<= main_x 39), 42188#(<= main_x 40), 42189#(<= main_x 41), 42190#(<= main_x 42), 42191#(<= main_x 43), 42192#(<= main_x 44), 42193#(<= main_x 45), 42194#(<= main_x 46), 42195#(<= main_x 47), 42196#(<= main_x 48), 42197#(<= main_x 49), 42198#(<= main_x 50), 42199#(<= main_x 51), 42200#(<= main_x 52), 42201#(<= main_x 53), 42202#(<= main_x 54), 42203#(<= main_x 55), 42204#(<= main_x 56), 42205#(<= main_x 57), 42206#(<= main_x 58), 42207#(<= main_x 59), 42208#(<= main_x 60), 42209#(<= main_x 61), 42210#(<= main_x 62), 42211#(<= main_x 63), 42212#(<= main_x 64), 42213#(<= main_x 65), 42214#(<= main_x 66), 42215#(<= main_x 67), 42216#(<= main_x 68), 42217#(<= main_x 69), 42218#(<= main_x 70), 42219#(<= main_x 71), 42220#(<= main_x 72), 42221#(<= main_x 73), 42222#(<= main_x 74), 42223#(<= main_x 75), 42224#(<= main_x 76), 42225#(<= main_x 77), 42226#(<= main_x 78), 42227#(<= main_x 79), 42228#(<= main_x 80), 42229#(<= main_x 81), 42230#(<= main_x 82), 42231#(<= main_x 83), 42232#(<= main_x 84), 42233#(<= main_x 85), 42234#(<= main_x 86), 42235#(<= main_x 87), 42236#(<= main_x 88), 42237#(<= main_x 89), 42238#(<= main_x 90), 42239#(<= main_x 91)] [2018-07-23 13:55:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:22,285 INFO L450 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-07-23 13:55:22,286 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-07-23 13:55:22,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:55:22,286 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand 128 states. [2018-07-23 13:55:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:22,379 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-07-23 13:55:22,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:55:22,379 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 128 [2018-07-23 13:55:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:22,379 INFO L225 Difference]: With dead ends: 132 [2018-07-23 13:55:22,380 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:55:22,381 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:55:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:55:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-07-23 13:55:22,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-07-23 13:55:22,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2018-07-23 13:55:22,383 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 128 [2018-07-23 13:55:22,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:22,383 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2018-07-23 13:55:22,384 INFO L472 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-07-23 13:55:22,384 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2018-07-23 13:55:22,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 13:55:22,384 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:22,384 INFO L357 BasicCegarLoop]: trace histogram [126, 1, 1, 1] [2018-07-23 13:55:22,384 INFO L414 AbstractCegarLoop]: === Iteration 127 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:22,385 INFO L82 PathProgramCache]: Analyzing trace with hash 417542304, now seen corresponding path program 126 times [2018-07-23 13:55:22,385 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:22,825 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:22,825 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [128] total 128 [2018-07-23 13:55:22,825 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:22,826 INFO L185 omatonBuilderFactory]: Interpolants [42798#true, 42799#false, 42800#(<= main_x 0), 42801#(<= main_x 1), 42802#(<= main_x 2), 42803#(<= main_x 3), 42804#(<= main_x 4), 42805#(<= main_x 5), 42806#(<= main_x 6), 42807#(<= main_x 7), 42808#(<= main_x 8), 42809#(<= main_x 9), 42810#(<= main_x 10), 42811#(<= main_x 11), 42812#(<= main_x 12), 42813#(<= main_x 13), 42814#(<= main_x 14), 42815#(<= main_x 15), 42816#(<= main_x 16), 42817#(<= main_x 17), 42818#(<= main_x 18), 42819#(<= main_x 19), 42820#(<= main_x 20), 42821#(<= main_x 21), 42822#(<= main_x 22), 42823#(<= main_x 23), 42824#(<= main_x 24), 42825#(<= main_x 25), 42826#(<= main_x 26), 42827#(<= main_x 27), 42828#(<= main_x 28), 42829#(<= main_x 29), 42830#(<= main_x 30), 42831#(<= main_x 31), 42832#(<= main_x 32), 42833#(<= main_x 33), 42834#(<= main_x 34), 42835#(<= main_x 35), 42836#(<= main_x 36), 42837#(<= main_x 37), 42838#(<= main_x 38), 42839#(<= main_x 39), 42840#(<= main_x 40), 42841#(<= main_x 41), 42842#(<= main_x 42), 42843#(<= main_x 43), 42844#(<= main_x 44), 42845#(<= main_x 45), 42846#(<= main_x 46), 42847#(<= main_x 47), 42848#(<= main_x 48), 42849#(<= main_x 49), 42850#(<= main_x 50), 42851#(<= main_x 51), 42852#(<= main_x 52), 42853#(<= main_x 53), 42854#(<= main_x 54), 42855#(<= main_x 55), 42856#(<= main_x 56), 42857#(<= main_x 57), 42858#(<= main_x 58), 42859#(<= main_x 59), 42860#(<= main_x 60), 42861#(<= main_x 61), 42862#(<= main_x 62), 42863#(<= main_x 63), 42864#(<= main_x 64), 42865#(<= main_x 65), 42866#(<= main_x 66), 42867#(<= main_x 67), 42868#(<= main_x 68), 42869#(<= main_x 69), 42870#(<= main_x 70), 42871#(<= main_x 71), 42872#(<= main_x 72), 42873#(<= main_x 73), 42874#(<= main_x 74), 42875#(<= main_x 75), 42876#(<= main_x 76), 42877#(<= main_x 77), 42878#(<= main_x 78), 42879#(<= main_x 79), 42880#(<= main_x 80), 42881#(<= main_x 81), 42882#(<= main_x 82), 42883#(<= main_x 83), 42884#(<= main_x 84), 42885#(<= main_x 85), 42886#(<= main_x 86), 42887#(<= main_x 87), 42888#(<= main_x 88), 42889#(<= main_x 89), 42890#(<= main_x 90), 42891#(<= main_x 91), 42892#(<= main_x 92), 42893#(<= main_x 93), 42894#(<= main_x 94), 42895#(<= main_x 95), 42896#(<= main_x 96), 42897#(<= main_x 97), 42898#(<= main_x 98), 42899#(<= main_x 99), 42900#(<= main_x 100), 42901#(<= main_x 101), 42902#(<= main_x 102), 42903#(<= main_x 103), 42904#(<= main_x 104), 42905#(<= main_x 105), 42906#(<= main_x 106), 42907#(<= main_x 107), 42908#(<= main_x 108), 42909#(<= main_x 109), 42910#(<= main_x 110), 42911#(<= main_x 111), 42912#(<= main_x 112), 42913#(<= main_x 113), 42914#(<= main_x 114), 42915#(<= main_x 115), 42916#(<= main_x 116), 42917#(<= main_x 117), 42918#(<= main_x 118), 42919#(<= main_x 119), 42920#(<= main_x 120), 42921#(<= main_x 121), 42922#(<= main_x 122), 42923#(<= main_x 123), 42924#(<= main_x 124), 42925#(<= main_x 125), 42926#(<= main_x 126)] [2018-07-23 13:55:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:22,827 INFO L450 AbstractCegarLoop]: Interpolant automaton has 129 states [2018-07-23 13:55:22,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2018-07-23 13:55:22,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:55:22,829 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand 129 states. [2018-07-23 13:55:23,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:23,007 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-07-23 13:55:23,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2018-07-23 13:55:23,007 INFO L78 Accepts]: Start accepts. Automaton has 129 states. Word has length 129 [2018-07-23 13:55:23,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:23,007 INFO L225 Difference]: With dead ends: 133 [2018-07-23 13:55:23,007 INFO L226 Difference]: Without dead ends: 131 [2018-07-23 13:55:23,008 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:55:23,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-07-23 13:55:23,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-07-23 13:55:23,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-07-23 13:55:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-07-23 13:55:23,010 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 129 [2018-07-23 13:55:23,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:23,010 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-07-23 13:55:23,010 INFO L472 AbstractCegarLoop]: Interpolant automaton has 129 states. [2018-07-23 13:55:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-07-23 13:55:23,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 13:55:23,011 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:23,011 INFO L357 BasicCegarLoop]: trace histogram [127, 1, 1, 1] [2018-07-23 13:55:23,011 INFO L414 AbstractCegarLoop]: === Iteration 128 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:23,011 INFO L82 PathProgramCache]: Analyzing trace with hash 58905670, now seen corresponding path program 127 times [2018-07-23 13:55:23,012 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 8128 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:23,600 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:23,600 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-07-23 13:55:23,600 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:23,606 INFO L185 omatonBuilderFactory]: Interpolants [43520#(<= main_x 63), 43521#(<= main_x 64), 43522#(<= main_x 65), 43523#(<= main_x 66), 43524#(<= main_x 67), 43525#(<= main_x 68), 43526#(<= main_x 69), 43527#(<= main_x 70), 43528#(<= main_x 71), 43529#(<= main_x 72), 43530#(<= main_x 73), 43531#(<= main_x 74), 43532#(<= main_x 75), 43533#(<= main_x 76), 43534#(<= main_x 77), 43535#(<= main_x 78), 43536#(<= main_x 79), 43537#(<= main_x 80), 43538#(<= main_x 81), 43539#(<= main_x 82), 43540#(<= main_x 83), 43541#(<= main_x 84), 43542#(<= main_x 85), 43543#(<= main_x 86), 43544#(<= main_x 87), 43545#(<= main_x 88), 43546#(<= main_x 89), 43547#(<= main_x 90), 43548#(<= main_x 91), 43549#(<= main_x 92), 43550#(<= main_x 93), 43551#(<= main_x 94), 43552#(<= main_x 95), 43553#(<= main_x 96), 43554#(<= main_x 97), 43555#(<= main_x 98), 43556#(<= main_x 99), 43557#(<= main_x 100), 43558#(<= main_x 101), 43559#(<= main_x 102), 43560#(<= main_x 103), 43561#(<= main_x 104), 43562#(<= main_x 105), 43563#(<= main_x 106), 43564#(<= main_x 107), 43565#(<= main_x 108), 43566#(<= main_x 109), 43567#(<= main_x 110), 43568#(<= main_x 111), 43569#(<= main_x 112), 43570#(<= main_x 113), 43571#(<= main_x 114), 43572#(<= main_x 115), 43573#(<= main_x 116), 43574#(<= main_x 117), 43575#(<= main_x 118), 43576#(<= main_x 119), 43577#(<= main_x 120), 43578#(<= main_x 121), 43579#(<= main_x 122), 43580#(<= main_x 123), 43581#(<= main_x 124), 43582#(<= main_x 125), 43583#(<= main_x 126), 43584#(<= main_x 127), 43455#true, 43456#false, 43457#(<= main_x 0), 43458#(<= main_x 1), 43459#(<= main_x 2), 43460#(<= main_x 3), 43461#(<= main_x 4), 43462#(<= main_x 5), 43463#(<= main_x 6), 43464#(<= main_x 7), 43465#(<= main_x 8), 43466#(<= main_x 9), 43467#(<= main_x 10), 43468#(<= main_x 11), 43469#(<= main_x 12), 43470#(<= main_x 13), 43471#(<= main_x 14), 43472#(<= main_x 15), 43473#(<= main_x 16), 43474#(<= main_x 17), 43475#(<= main_x 18), 43476#(<= main_x 19), 43477#(<= main_x 20), 43478#(<= main_x 21), 43479#(<= main_x 22), 43480#(<= main_x 23), 43481#(<= main_x 24), 43482#(<= main_x 25), 43483#(<= main_x 26), 43484#(<= main_x 27), 43485#(<= main_x 28), 43486#(<= main_x 29), 43487#(<= main_x 30), 43488#(<= main_x 31), 43489#(<= main_x 32), 43490#(<= main_x 33), 43491#(<= main_x 34), 43492#(<= main_x 35), 43493#(<= main_x 36), 43494#(<= main_x 37), 43495#(<= main_x 38), 43496#(<= main_x 39), 43497#(<= main_x 40), 43498#(<= main_x 41), 43499#(<= main_x 42), 43500#(<= main_x 43), 43501#(<= main_x 44), 43502#(<= main_x 45), 43503#(<= main_x 46), 43504#(<= main_x 47), 43505#(<= main_x 48), 43506#(<= main_x 49), 43507#(<= main_x 50), 43508#(<= main_x 51), 43509#(<= main_x 52), 43510#(<= main_x 53), 43511#(<= main_x 54), 43512#(<= main_x 55), 43513#(<= main_x 56), 43514#(<= main_x 57), 43515#(<= main_x 58), 43516#(<= main_x 59), 43517#(<= main_x 60), 43518#(<= main_x 61), 43519#(<= main_x 62)] [2018-07-23 13:55:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8128 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:23,608 INFO L450 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-07-23 13:55:23,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-07-23 13:55:23,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:55:23,612 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 130 states. [2018-07-23 13:55:23,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:23,745 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-07-23 13:55:23,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:55:23,745 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 130 [2018-07-23 13:55:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:23,746 INFO L225 Difference]: With dead ends: 134 [2018-07-23 13:55:23,746 INFO L226 Difference]: Without dead ends: 132 [2018-07-23 13:55:23,747 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:55:23,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-23 13:55:23,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-07-23 13:55:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 13:55:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-07-23 13:55:23,752 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 130 [2018-07-23 13:55:23,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:23,752 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-07-23 13:55:23,752 INFO L472 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-07-23 13:55:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-07-23 13:55:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 13:55:23,755 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:23,755 INFO L357 BasicCegarLoop]: trace histogram [128, 1, 1, 1] [2018-07-23 13:55:23,755 INFO L414 AbstractCegarLoop]: === Iteration 129 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:23,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1826071904, now seen corresponding path program 128 times [2018-07-23 13:55:23,755 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:24,171 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,171 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:24,171 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [130] total 130 [2018-07-23 13:55:24,171 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,172 INFO L185 omatonBuilderFactory]: Interpolants [44117#true, 44118#false, 44119#(<= main_x 0), 44120#(<= main_x 1), 44121#(<= main_x 2), 44122#(<= main_x 3), 44123#(<= main_x 4), 44124#(<= main_x 5), 44125#(<= main_x 6), 44126#(<= main_x 7), 44127#(<= main_x 8), 44128#(<= main_x 9), 44129#(<= main_x 10), 44130#(<= main_x 11), 44131#(<= main_x 12), 44132#(<= main_x 13), 44133#(<= main_x 14), 44134#(<= main_x 15), 44135#(<= main_x 16), 44136#(<= main_x 17), 44137#(<= main_x 18), 44138#(<= main_x 19), 44139#(<= main_x 20), 44140#(<= main_x 21), 44141#(<= main_x 22), 44142#(<= main_x 23), 44143#(<= main_x 24), 44144#(<= main_x 25), 44145#(<= main_x 26), 44146#(<= main_x 27), 44147#(<= main_x 28), 44148#(<= main_x 29), 44149#(<= main_x 30), 44150#(<= main_x 31), 44151#(<= main_x 32), 44152#(<= main_x 33), 44153#(<= main_x 34), 44154#(<= main_x 35), 44155#(<= main_x 36), 44156#(<= main_x 37), 44157#(<= main_x 38), 44158#(<= main_x 39), 44159#(<= main_x 40), 44160#(<= main_x 41), 44161#(<= main_x 42), 44162#(<= main_x 43), 44163#(<= main_x 44), 44164#(<= main_x 45), 44165#(<= main_x 46), 44166#(<= main_x 47), 44167#(<= main_x 48), 44168#(<= main_x 49), 44169#(<= main_x 50), 44170#(<= main_x 51), 44171#(<= main_x 52), 44172#(<= main_x 53), 44173#(<= main_x 54), 44174#(<= main_x 55), 44175#(<= main_x 56), 44176#(<= main_x 57), 44177#(<= main_x 58), 44178#(<= main_x 59), 44179#(<= main_x 60), 44180#(<= main_x 61), 44181#(<= main_x 62), 44182#(<= main_x 63), 44183#(<= main_x 64), 44184#(<= main_x 65), 44185#(<= main_x 66), 44186#(<= main_x 67), 44187#(<= main_x 68), 44188#(<= main_x 69), 44189#(<= main_x 70), 44190#(<= main_x 71), 44191#(<= main_x 72), 44192#(<= main_x 73), 44193#(<= main_x 74), 44194#(<= main_x 75), 44195#(<= main_x 76), 44196#(<= main_x 77), 44197#(<= main_x 78), 44198#(<= main_x 79), 44199#(<= main_x 80), 44200#(<= main_x 81), 44201#(<= main_x 82), 44202#(<= main_x 83), 44203#(<= main_x 84), 44204#(<= main_x 85), 44205#(<= main_x 86), 44206#(<= main_x 87), 44207#(<= main_x 88), 44208#(<= main_x 89), 44209#(<= main_x 90), 44210#(<= main_x 91), 44211#(<= main_x 92), 44212#(<= main_x 93), 44213#(<= main_x 94), 44214#(<= main_x 95), 44215#(<= main_x 96), 44216#(<= main_x 97), 44217#(<= main_x 98), 44218#(<= main_x 99), 44219#(<= main_x 100), 44220#(<= main_x 101), 44221#(<= main_x 102), 44222#(<= main_x 103), 44223#(<= main_x 104), 44224#(<= main_x 105), 44225#(<= main_x 106), 44226#(<= main_x 107), 44227#(<= main_x 108), 44228#(<= main_x 109), 44229#(<= main_x 110), 44230#(<= main_x 111), 44231#(<= main_x 112), 44232#(<= main_x 113), 44233#(<= main_x 114), 44234#(<= main_x 115), 44235#(<= main_x 116), 44236#(<= main_x 117), 44237#(<= main_x 118), 44238#(<= main_x 119), 44239#(<= main_x 120), 44240#(<= main_x 121), 44241#(<= main_x 122), 44242#(<= main_x 123), 44243#(<= main_x 124), 44244#(<= main_x 125), 44245#(<= main_x 126), 44246#(<= main_x 127), 44247#(<= main_x 128)] [2018-07-23 13:55:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-07-23 13:55:24,174 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-07-23 13:55:24,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:55:24,174 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 131 states. [2018-07-23 13:55:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:24,325 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2018-07-23 13:55:24,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2018-07-23 13:55:24,326 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 131 [2018-07-23 13:55:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:24,326 INFO L225 Difference]: With dead ends: 135 [2018-07-23 13:55:24,326 INFO L226 Difference]: Without dead ends: 133 [2018-07-23 13:55:24,327 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:55:24,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-07-23 13:55:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-07-23 13:55:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-07-23 13:55:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 133 transitions. [2018-07-23 13:55:24,330 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 133 transitions. Word has length 131 [2018-07-23 13:55:24,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:24,330 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 133 transitions. [2018-07-23 13:55:24,331 INFO L472 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-07-23 13:55:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 133 transitions. [2018-07-23 13:55:24,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 13:55:24,331 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:24,331 INFO L357 BasicCegarLoop]: trace histogram [129, 1, 1, 1] [2018-07-23 13:55:24,331 INFO L414 AbstractCegarLoop]: === Iteration 130 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:24,332 INFO L82 PathProgramCache]: Analyzing trace with hash 773650310, now seen corresponding path program 129 times [2018-07-23 13:55:24,332 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 0 proven. 8385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,738 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:24,738 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-07-23 13:55:24,739 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,739 INFO L185 omatonBuilderFactory]: Interpolants [44800#(<= main_x 14), 44801#(<= main_x 15), 44802#(<= main_x 16), 44803#(<= main_x 17), 44804#(<= main_x 18), 44805#(<= main_x 19), 44806#(<= main_x 20), 44807#(<= main_x 21), 44808#(<= main_x 22), 44809#(<= main_x 23), 44810#(<= main_x 24), 44811#(<= main_x 25), 44812#(<= main_x 26), 44813#(<= main_x 27), 44814#(<= main_x 28), 44815#(<= main_x 29), 44816#(<= main_x 30), 44817#(<= main_x 31), 44818#(<= main_x 32), 44819#(<= main_x 33), 44820#(<= main_x 34), 44821#(<= main_x 35), 44822#(<= main_x 36), 44823#(<= main_x 37), 44824#(<= main_x 38), 44825#(<= main_x 39), 44826#(<= main_x 40), 44827#(<= main_x 41), 44828#(<= main_x 42), 44829#(<= main_x 43), 44830#(<= main_x 44), 44831#(<= main_x 45), 44832#(<= main_x 46), 44833#(<= main_x 47), 44834#(<= main_x 48), 44835#(<= main_x 49), 44836#(<= main_x 50), 44837#(<= main_x 51), 44838#(<= main_x 52), 44839#(<= main_x 53), 44840#(<= main_x 54), 44841#(<= main_x 55), 44842#(<= main_x 56), 44843#(<= main_x 57), 44844#(<= main_x 58), 44845#(<= main_x 59), 44846#(<= main_x 60), 44847#(<= main_x 61), 44848#(<= main_x 62), 44849#(<= main_x 63), 44850#(<= main_x 64), 44851#(<= main_x 65), 44852#(<= main_x 66), 44853#(<= main_x 67), 44854#(<= main_x 68), 44855#(<= main_x 69), 44856#(<= main_x 70), 44857#(<= main_x 71), 44858#(<= main_x 72), 44859#(<= main_x 73), 44860#(<= main_x 74), 44861#(<= main_x 75), 44862#(<= main_x 76), 44863#(<= main_x 77), 44864#(<= main_x 78), 44865#(<= main_x 79), 44866#(<= main_x 80), 44867#(<= main_x 81), 44868#(<= main_x 82), 44869#(<= main_x 83), 44870#(<= main_x 84), 44871#(<= main_x 85), 44872#(<= main_x 86), 44873#(<= main_x 87), 44874#(<= main_x 88), 44875#(<= main_x 89), 44876#(<= main_x 90), 44877#(<= main_x 91), 44878#(<= main_x 92), 44879#(<= main_x 93), 44880#(<= main_x 94), 44881#(<= main_x 95), 44882#(<= main_x 96), 44883#(<= main_x 97), 44884#(<= main_x 98), 44885#(<= main_x 99), 44886#(<= main_x 100), 44887#(<= main_x 101), 44888#(<= main_x 102), 44889#(<= main_x 103), 44890#(<= main_x 104), 44891#(<= main_x 105), 44892#(<= main_x 106), 44893#(<= main_x 107), 44894#(<= main_x 108), 44895#(<= main_x 109), 44896#(<= main_x 110), 44897#(<= main_x 111), 44898#(<= main_x 112), 44899#(<= main_x 113), 44900#(<= main_x 114), 44901#(<= main_x 115), 44902#(<= main_x 116), 44903#(<= main_x 117), 44904#(<= main_x 118), 44905#(<= main_x 119), 44906#(<= main_x 120), 44907#(<= main_x 121), 44908#(<= main_x 122), 44909#(<= main_x 123), 44910#(<= main_x 124), 44911#(<= main_x 125), 44912#(<= main_x 126), 44913#(<= main_x 127), 44914#(<= main_x 128), 44915#(<= main_x 129), 44784#true, 44785#false, 44786#(<= main_x 0), 44787#(<= main_x 1), 44788#(<= main_x 2), 44789#(<= main_x 3), 44790#(<= main_x 4), 44791#(<= main_x 5), 44792#(<= main_x 6), 44793#(<= main_x 7), 44794#(<= main_x 8), 44795#(<= main_x 9), 44796#(<= main_x 10), 44797#(<= main_x 11), 44798#(<= main_x 12), 44799#(<= main_x 13)] [2018-07-23 13:55:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 0 proven. 8385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,740 INFO L450 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-07-23 13:55:24,741 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-07-23 13:55:24,741 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:55:24,741 INFO L87 Difference]: Start difference. First operand 133 states and 133 transitions. Second operand 132 states. [2018-07-23 13:55:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:25,075 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2018-07-23 13:55:25,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:55:25,075 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 132 [2018-07-23 13:55:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:25,076 INFO L225 Difference]: With dead ends: 136 [2018-07-23 13:55:25,076 INFO L226 Difference]: Without dead ends: 134 [2018-07-23 13:55:25,077 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:55:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-07-23 13:55:25,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-07-23 13:55:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-07-23 13:55:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-07-23 13:55:25,080 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 132 [2018-07-23 13:55:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:25,081 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-07-23 13:55:25,081 INFO L472 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-07-23 13:55:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-07-23 13:55:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 13:55:25,081 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:25,081 INFO L357 BasicCegarLoop]: trace histogram [130, 1, 1, 1] [2018-07-23 13:55:25,082 INFO L414 AbstractCegarLoop]: === Iteration 131 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:25,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1786648032, now seen corresponding path program 130 times [2018-07-23 13:55:25,082 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:25,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:25,530 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:25,530 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [132] total 132 [2018-07-23 13:55:25,530 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:25,530 INFO L185 omatonBuilderFactory]: Interpolants [45568#(<= main_x 110), 45569#(<= main_x 111), 45570#(<= main_x 112), 45571#(<= main_x 113), 45572#(<= main_x 114), 45573#(<= main_x 115), 45574#(<= main_x 116), 45575#(<= main_x 117), 45576#(<= main_x 118), 45577#(<= main_x 119), 45578#(<= main_x 120), 45579#(<= main_x 121), 45580#(<= main_x 122), 45581#(<= main_x 123), 45582#(<= main_x 124), 45583#(<= main_x 125), 45584#(<= main_x 126), 45585#(<= main_x 127), 45586#(<= main_x 128), 45587#(<= main_x 129), 45588#(<= main_x 130), 45456#true, 45457#false, 45458#(<= main_x 0), 45459#(<= main_x 1), 45460#(<= main_x 2), 45461#(<= main_x 3), 45462#(<= main_x 4), 45463#(<= main_x 5), 45464#(<= main_x 6), 45465#(<= main_x 7), 45466#(<= main_x 8), 45467#(<= main_x 9), 45468#(<= main_x 10), 45469#(<= main_x 11), 45470#(<= main_x 12), 45471#(<= main_x 13), 45472#(<= main_x 14), 45473#(<= main_x 15), 45474#(<= main_x 16), 45475#(<= main_x 17), 45476#(<= main_x 18), 45477#(<= main_x 19), 45478#(<= main_x 20), 45479#(<= main_x 21), 45480#(<= main_x 22), 45481#(<= main_x 23), 45482#(<= main_x 24), 45483#(<= main_x 25), 45484#(<= main_x 26), 45485#(<= main_x 27), 45486#(<= main_x 28), 45487#(<= main_x 29), 45488#(<= main_x 30), 45489#(<= main_x 31), 45490#(<= main_x 32), 45491#(<= main_x 33), 45492#(<= main_x 34), 45493#(<= main_x 35), 45494#(<= main_x 36), 45495#(<= main_x 37), 45496#(<= main_x 38), 45497#(<= main_x 39), 45498#(<= main_x 40), 45499#(<= main_x 41), 45500#(<= main_x 42), 45501#(<= main_x 43), 45502#(<= main_x 44), 45503#(<= main_x 45), 45504#(<= main_x 46), 45505#(<= main_x 47), 45506#(<= main_x 48), 45507#(<= main_x 49), 45508#(<= main_x 50), 45509#(<= main_x 51), 45510#(<= main_x 52), 45511#(<= main_x 53), 45512#(<= main_x 54), 45513#(<= main_x 55), 45514#(<= main_x 56), 45515#(<= main_x 57), 45516#(<= main_x 58), 45517#(<= main_x 59), 45518#(<= main_x 60), 45519#(<= main_x 61), 45520#(<= main_x 62), 45521#(<= main_x 63), 45522#(<= main_x 64), 45523#(<= main_x 65), 45524#(<= main_x 66), 45525#(<= main_x 67), 45526#(<= main_x 68), 45527#(<= main_x 69), 45528#(<= main_x 70), 45529#(<= main_x 71), 45530#(<= main_x 72), 45531#(<= main_x 73), 45532#(<= main_x 74), 45533#(<= main_x 75), 45534#(<= main_x 76), 45535#(<= main_x 77), 45536#(<= main_x 78), 45537#(<= main_x 79), 45538#(<= main_x 80), 45539#(<= main_x 81), 45540#(<= main_x 82), 45541#(<= main_x 83), 45542#(<= main_x 84), 45543#(<= main_x 85), 45544#(<= main_x 86), 45545#(<= main_x 87), 45546#(<= main_x 88), 45547#(<= main_x 89), 45548#(<= main_x 90), 45549#(<= main_x 91), 45550#(<= main_x 92), 45551#(<= main_x 93), 45552#(<= main_x 94), 45553#(<= main_x 95), 45554#(<= main_x 96), 45555#(<= main_x 97), 45556#(<= main_x 98), 45557#(<= main_x 99), 45558#(<= main_x 100), 45559#(<= main_x 101), 45560#(<= main_x 102), 45561#(<= main_x 103), 45562#(<= main_x 104), 45563#(<= main_x 105), 45564#(<= main_x 106), 45565#(<= main_x 107), 45566#(<= main_x 108), 45567#(<= main_x 109)] [2018-07-23 13:55:25,531 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:25,531 INFO L450 AbstractCegarLoop]: Interpolant automaton has 133 states [2018-07-23 13:55:25,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2018-07-23 13:55:25,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:55:25,532 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 133 states. [2018-07-23 13:55:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:25,658 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-07-23 13:55:25,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2018-07-23 13:55:25,658 INFO L78 Accepts]: Start accepts. Automaton has 133 states. Word has length 133 [2018-07-23 13:55:25,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:25,659 INFO L225 Difference]: With dead ends: 137 [2018-07-23 13:55:25,659 INFO L226 Difference]: Without dead ends: 135 [2018-07-23 13:55:25,659 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:55:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-07-23 13:55:25,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-07-23 13:55:25,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-07-23 13:55:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2018-07-23 13:55:25,662 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 133 [2018-07-23 13:55:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:25,663 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2018-07-23 13:55:25,663 INFO L472 AbstractCegarLoop]: Interpolant automaton has 133 states. [2018-07-23 13:55:25,663 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2018-07-23 13:55:25,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 13:55:25,663 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:25,663 INFO L357 BasicCegarLoop]: trace histogram [131, 1, 1, 1] [2018-07-23 13:55:25,664 INFO L414 AbstractCegarLoop]: === Iteration 132 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:25,664 INFO L82 PathProgramCache]: Analyzing trace with hash 448481990, now seen corresponding path program 131 times [2018-07-23 13:55:25,664 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 8646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:26,071 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:26,072 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2018-07-23 13:55:26,072 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:26,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:26,072 INFO L185 omatonBuilderFactory]: Interpolants [46133#true, 46134#false, 46135#(<= main_x 0), 46136#(<= main_x 1), 46137#(<= main_x 2), 46138#(<= main_x 3), 46139#(<= main_x 4), 46140#(<= main_x 5), 46141#(<= main_x 6), 46142#(<= main_x 7), 46143#(<= main_x 8), 46144#(<= main_x 9), 46145#(<= main_x 10), 46146#(<= main_x 11), 46147#(<= main_x 12), 46148#(<= main_x 13), 46149#(<= main_x 14), 46150#(<= main_x 15), 46151#(<= main_x 16), 46152#(<= main_x 17), 46153#(<= main_x 18), 46154#(<= main_x 19), 46155#(<= main_x 20), 46156#(<= main_x 21), 46157#(<= main_x 22), 46158#(<= main_x 23), 46159#(<= main_x 24), 46160#(<= main_x 25), 46161#(<= main_x 26), 46162#(<= main_x 27), 46163#(<= main_x 28), 46164#(<= main_x 29), 46165#(<= main_x 30), 46166#(<= main_x 31), 46167#(<= main_x 32), 46168#(<= main_x 33), 46169#(<= main_x 34), 46170#(<= main_x 35), 46171#(<= main_x 36), 46172#(<= main_x 37), 46173#(<= main_x 38), 46174#(<= main_x 39), 46175#(<= main_x 40), 46176#(<= main_x 41), 46177#(<= main_x 42), 46178#(<= main_x 43), 46179#(<= main_x 44), 46180#(<= main_x 45), 46181#(<= main_x 46), 46182#(<= main_x 47), 46183#(<= main_x 48), 46184#(<= main_x 49), 46185#(<= main_x 50), 46186#(<= main_x 51), 46187#(<= main_x 52), 46188#(<= main_x 53), 46189#(<= main_x 54), 46190#(<= main_x 55), 46191#(<= main_x 56), 46192#(<= main_x 57), 46193#(<= main_x 58), 46194#(<= main_x 59), 46195#(<= main_x 60), 46196#(<= main_x 61), 46197#(<= main_x 62), 46198#(<= main_x 63), 46199#(<= main_x 64), 46200#(<= main_x 65), 46201#(<= main_x 66), 46202#(<= main_x 67), 46203#(<= main_x 68), 46204#(<= main_x 69), 46205#(<= main_x 70), 46206#(<= main_x 71), 46207#(<= main_x 72), 46208#(<= main_x 73), 46209#(<= main_x 74), 46210#(<= main_x 75), 46211#(<= main_x 76), 46212#(<= main_x 77), 46213#(<= main_x 78), 46214#(<= main_x 79), 46215#(<= main_x 80), 46216#(<= main_x 81), 46217#(<= main_x 82), 46218#(<= main_x 83), 46219#(<= main_x 84), 46220#(<= main_x 85), 46221#(<= main_x 86), 46222#(<= main_x 87), 46223#(<= main_x 88), 46224#(<= main_x 89), 46225#(<= main_x 90), 46226#(<= main_x 91), 46227#(<= main_x 92), 46228#(<= main_x 93), 46229#(<= main_x 94), 46230#(<= main_x 95), 46231#(<= main_x 96), 46232#(<= main_x 97), 46233#(<= main_x 98), 46234#(<= main_x 99), 46235#(<= main_x 100), 46236#(<= main_x 101), 46237#(<= main_x 102), 46238#(<= main_x 103), 46239#(<= main_x 104), 46240#(<= main_x 105), 46241#(<= main_x 106), 46242#(<= main_x 107), 46243#(<= main_x 108), 46244#(<= main_x 109), 46245#(<= main_x 110), 46246#(<= main_x 111), 46247#(<= main_x 112), 46248#(<= main_x 113), 46249#(<= main_x 114), 46250#(<= main_x 115), 46251#(<= main_x 116), 46252#(<= main_x 117), 46253#(<= main_x 118), 46254#(<= main_x 119), 46255#(<= main_x 120), 46256#(<= main_x 121), 46257#(<= main_x 122), 46258#(<= main_x 123), 46259#(<= main_x 124), 46260#(<= main_x 125), 46261#(<= main_x 126), 46262#(<= main_x 127), 46263#(<= main_x 128), 46264#(<= main_x 129), 46265#(<= main_x 130), 46266#(<= main_x 131)] [2018-07-23 13:55:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 8646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:26,073 INFO L450 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-07-23 13:55:26,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-07-23 13:55:26,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:55:26,075 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand 134 states. [2018-07-23 13:55:26,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:26,243 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-07-23 13:55:26,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:55:26,243 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 134 [2018-07-23 13:55:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:26,244 INFO L225 Difference]: With dead ends: 138 [2018-07-23 13:55:26,244 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:55:26,245 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:55:26,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:55:26,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-07-23 13:55:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-07-23 13:55:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2018-07-23 13:55:26,248 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 134 [2018-07-23 13:55:26,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:26,248 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2018-07-23 13:55:26,248 INFO L472 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-07-23 13:55:26,248 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2018-07-23 13:55:26,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-23 13:55:26,249 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:26,249 INFO L357 BasicCegarLoop]: trace histogram [132, 1, 1, 1] [2018-07-23 13:55:26,249 INFO L414 AbstractCegarLoop]: === Iteration 133 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:26,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1018035936, now seen corresponding path program 132 times [2018-07-23 13:55:26,250 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:26,697 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:26,697 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [134] total 134 [2018-07-23 13:55:26,698 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:26,698 INFO L185 omatonBuilderFactory]: Interpolants [46848#(<= main_x 31), 46849#(<= main_x 32), 46850#(<= main_x 33), 46851#(<= main_x 34), 46852#(<= main_x 35), 46853#(<= main_x 36), 46854#(<= main_x 37), 46855#(<= main_x 38), 46856#(<= main_x 39), 46857#(<= main_x 40), 46858#(<= main_x 41), 46859#(<= main_x 42), 46860#(<= main_x 43), 46861#(<= main_x 44), 46862#(<= main_x 45), 46863#(<= main_x 46), 46864#(<= main_x 47), 46865#(<= main_x 48), 46866#(<= main_x 49), 46867#(<= main_x 50), 46868#(<= main_x 51), 46869#(<= main_x 52), 46870#(<= main_x 53), 46871#(<= main_x 54), 46872#(<= main_x 55), 46873#(<= main_x 56), 46874#(<= main_x 57), 46875#(<= main_x 58), 46876#(<= main_x 59), 46877#(<= main_x 60), 46878#(<= main_x 61), 46879#(<= main_x 62), 46880#(<= main_x 63), 46881#(<= main_x 64), 46882#(<= main_x 65), 46883#(<= main_x 66), 46884#(<= main_x 67), 46885#(<= main_x 68), 46886#(<= main_x 69), 46887#(<= main_x 70), 46888#(<= main_x 71), 46889#(<= main_x 72), 46890#(<= main_x 73), 46891#(<= main_x 74), 46892#(<= main_x 75), 46893#(<= main_x 76), 46894#(<= main_x 77), 46895#(<= main_x 78), 46896#(<= main_x 79), 46897#(<= main_x 80), 46898#(<= main_x 81), 46899#(<= main_x 82), 46900#(<= main_x 83), 46901#(<= main_x 84), 46902#(<= main_x 85), 46903#(<= main_x 86), 46904#(<= main_x 87), 46905#(<= main_x 88), 46906#(<= main_x 89), 46907#(<= main_x 90), 46908#(<= main_x 91), 46909#(<= main_x 92), 46910#(<= main_x 93), 46911#(<= main_x 94), 46912#(<= main_x 95), 46913#(<= main_x 96), 46914#(<= main_x 97), 46915#(<= main_x 98), 46916#(<= main_x 99), 46917#(<= main_x 100), 46918#(<= main_x 101), 46919#(<= main_x 102), 46920#(<= main_x 103), 46921#(<= main_x 104), 46922#(<= main_x 105), 46923#(<= main_x 106), 46924#(<= main_x 107), 46925#(<= main_x 108), 46926#(<= main_x 109), 46927#(<= main_x 110), 46928#(<= main_x 111), 46929#(<= main_x 112), 46930#(<= main_x 113), 46931#(<= main_x 114), 46932#(<= main_x 115), 46933#(<= main_x 116), 46934#(<= main_x 117), 46935#(<= main_x 118), 46936#(<= main_x 119), 46937#(<= main_x 120), 46938#(<= main_x 121), 46939#(<= main_x 122), 46940#(<= main_x 123), 46941#(<= main_x 124), 46942#(<= main_x 125), 46943#(<= main_x 126), 46944#(<= main_x 127), 46945#(<= main_x 128), 46946#(<= main_x 129), 46947#(<= main_x 130), 46948#(<= main_x 131), 46949#(<= main_x 132), 46815#true, 46816#false, 46817#(<= main_x 0), 46818#(<= main_x 1), 46819#(<= main_x 2), 46820#(<= main_x 3), 46821#(<= main_x 4), 46822#(<= main_x 5), 46823#(<= main_x 6), 46824#(<= main_x 7), 46825#(<= main_x 8), 46826#(<= main_x 9), 46827#(<= main_x 10), 46828#(<= main_x 11), 46829#(<= main_x 12), 46830#(<= main_x 13), 46831#(<= main_x 14), 46832#(<= main_x 15), 46833#(<= main_x 16), 46834#(<= main_x 17), 46835#(<= main_x 18), 46836#(<= main_x 19), 46837#(<= main_x 20), 46838#(<= main_x 21), 46839#(<= main_x 22), 46840#(<= main_x 23), 46841#(<= main_x 24), 46842#(<= main_x 25), 46843#(<= main_x 26), 46844#(<= main_x 27), 46845#(<= main_x 28), 46846#(<= main_x 29), 46847#(<= main_x 30)] [2018-07-23 13:55:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:26,699 INFO L450 AbstractCegarLoop]: Interpolant automaton has 135 states [2018-07-23 13:55:26,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2018-07-23 13:55:26,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:55:26,700 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand 135 states. [2018-07-23 13:55:26,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:26,851 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-07-23 13:55:26,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-07-23 13:55:26,852 INFO L78 Accepts]: Start accepts. Automaton has 135 states. Word has length 135 [2018-07-23 13:55:26,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:26,852 INFO L225 Difference]: With dead ends: 139 [2018-07-23 13:55:26,852 INFO L226 Difference]: Without dead ends: 137 [2018-07-23 13:55:26,853 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:55:26,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-07-23 13:55:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-07-23 13:55:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-07-23 13:55:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2018-07-23 13:55:26,856 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 135 [2018-07-23 13:55:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:26,857 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2018-07-23 13:55:26,857 INFO L472 AbstractCegarLoop]: Interpolant automaton has 135 states. [2018-07-23 13:55:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2018-07-23 13:55:26,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-23 13:55:26,857 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:26,858 INFO L357 BasicCegarLoop]: trace histogram [133, 1, 1, 1] [2018-07-23 13:55:26,858 INFO L414 AbstractCegarLoop]: === Iteration 134 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:26,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1494339078, now seen corresponding path program 133 times [2018-07-23 13:55:26,858 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:27,321 INFO L134 CoverageAnalysis]: Checked inductivity of 8911 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:27,321 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:27,321 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2018-07-23 13:55:27,321 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:27,322 INFO L185 omatonBuilderFactory]: Interpolants [47616#(<= main_x 112), 47617#(<= main_x 113), 47618#(<= main_x 114), 47619#(<= main_x 115), 47620#(<= main_x 116), 47621#(<= main_x 117), 47622#(<= main_x 118), 47623#(<= main_x 119), 47624#(<= main_x 120), 47625#(<= main_x 121), 47626#(<= main_x 122), 47627#(<= main_x 123), 47628#(<= main_x 124), 47629#(<= main_x 125), 47630#(<= main_x 126), 47631#(<= main_x 127), 47632#(<= main_x 128), 47633#(<= main_x 129), 47634#(<= main_x 130), 47635#(<= main_x 131), 47636#(<= main_x 132), 47637#(<= main_x 133), 47502#true, 47503#false, 47504#(<= main_x 0), 47505#(<= main_x 1), 47506#(<= main_x 2), 47507#(<= main_x 3), 47508#(<= main_x 4), 47509#(<= main_x 5), 47510#(<= main_x 6), 47511#(<= main_x 7), 47512#(<= main_x 8), 47513#(<= main_x 9), 47514#(<= main_x 10), 47515#(<= main_x 11), 47516#(<= main_x 12), 47517#(<= main_x 13), 47518#(<= main_x 14), 47519#(<= main_x 15), 47520#(<= main_x 16), 47521#(<= main_x 17), 47522#(<= main_x 18), 47523#(<= main_x 19), 47524#(<= main_x 20), 47525#(<= main_x 21), 47526#(<= main_x 22), 47527#(<= main_x 23), 47528#(<= main_x 24), 47529#(<= main_x 25), 47530#(<= main_x 26), 47531#(<= main_x 27), 47532#(<= main_x 28), 47533#(<= main_x 29), 47534#(<= main_x 30), 47535#(<= main_x 31), 47536#(<= main_x 32), 47537#(<= main_x 33), 47538#(<= main_x 34), 47539#(<= main_x 35), 47540#(<= main_x 36), 47541#(<= main_x 37), 47542#(<= main_x 38), 47543#(<= main_x 39), 47544#(<= main_x 40), 47545#(<= main_x 41), 47546#(<= main_x 42), 47547#(<= main_x 43), 47548#(<= main_x 44), 47549#(<= main_x 45), 47550#(<= main_x 46), 47551#(<= main_x 47), 47552#(<= main_x 48), 47553#(<= main_x 49), 47554#(<= main_x 50), 47555#(<= main_x 51), 47556#(<= main_x 52), 47557#(<= main_x 53), 47558#(<= main_x 54), 47559#(<= main_x 55), 47560#(<= main_x 56), 47561#(<= main_x 57), 47562#(<= main_x 58), 47563#(<= main_x 59), 47564#(<= main_x 60), 47565#(<= main_x 61), 47566#(<= main_x 62), 47567#(<= main_x 63), 47568#(<= main_x 64), 47569#(<= main_x 65), 47570#(<= main_x 66), 47571#(<= main_x 67), 47572#(<= main_x 68), 47573#(<= main_x 69), 47574#(<= main_x 70), 47575#(<= main_x 71), 47576#(<= main_x 72), 47577#(<= main_x 73), 47578#(<= main_x 74), 47579#(<= main_x 75), 47580#(<= main_x 76), 47581#(<= main_x 77), 47582#(<= main_x 78), 47583#(<= main_x 79), 47584#(<= main_x 80), 47585#(<= main_x 81), 47586#(<= main_x 82), 47587#(<= main_x 83), 47588#(<= main_x 84), 47589#(<= main_x 85), 47590#(<= main_x 86), 47591#(<= main_x 87), 47592#(<= main_x 88), 47593#(<= main_x 89), 47594#(<= main_x 90), 47595#(<= main_x 91), 47596#(<= main_x 92), 47597#(<= main_x 93), 47598#(<= main_x 94), 47599#(<= main_x 95), 47600#(<= main_x 96), 47601#(<= main_x 97), 47602#(<= main_x 98), 47603#(<= main_x 99), 47604#(<= main_x 100), 47605#(<= main_x 101), 47606#(<= main_x 102), 47607#(<= main_x 103), 47608#(<= main_x 104), 47609#(<= main_x 105), 47610#(<= main_x 106), 47611#(<= main_x 107), 47612#(<= main_x 108), 47613#(<= main_x 109), 47614#(<= main_x 110), 47615#(<= main_x 111)] [2018-07-23 13:55:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8911 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:27,323 INFO L450 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-07-23 13:55:27,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-07-23 13:55:27,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:55:27,326 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand 136 states. [2018-07-23 13:55:27,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:27,493 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-07-23 13:55:27,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:55:27,493 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 136 [2018-07-23 13:55:27,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:27,494 INFO L225 Difference]: With dead ends: 140 [2018-07-23 13:55:27,494 INFO L226 Difference]: Without dead ends: 138 [2018-07-23 13:55:27,495 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:55:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-07-23 13:55:27,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-07-23 13:55:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 13:55:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2018-07-23 13:55:27,498 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 136 [2018-07-23 13:55:27,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:27,499 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2018-07-23 13:55:27,499 INFO L472 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-07-23 13:55:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2018-07-23 13:55:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 13:55:27,499 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:27,500 INFO L357 BasicCegarLoop]: trace histogram [134, 1, 1, 1] [2018-07-23 13:55:27,500 INFO L414 AbstractCegarLoop]: === Iteration 135 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:27,500 INFO L82 PathProgramCache]: Analyzing trace with hash -920132704, now seen corresponding path program 134 times [2018-07-23 13:55:27,500 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,037 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:28,037 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [136] total 136 [2018-07-23 13:55:28,037 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:28,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,038 INFO L185 omatonBuilderFactory]: Interpolants [48194#true, 48195#false, 48196#(<= main_x 0), 48197#(<= main_x 1), 48198#(<= main_x 2), 48199#(<= main_x 3), 48200#(<= main_x 4), 48201#(<= main_x 5), 48202#(<= main_x 6), 48203#(<= main_x 7), 48204#(<= main_x 8), 48205#(<= main_x 9), 48206#(<= main_x 10), 48207#(<= main_x 11), 48208#(<= main_x 12), 48209#(<= main_x 13), 48210#(<= main_x 14), 48211#(<= main_x 15), 48212#(<= main_x 16), 48213#(<= main_x 17), 48214#(<= main_x 18), 48215#(<= main_x 19), 48216#(<= main_x 20), 48217#(<= main_x 21), 48218#(<= main_x 22), 48219#(<= main_x 23), 48220#(<= main_x 24), 48221#(<= main_x 25), 48222#(<= main_x 26), 48223#(<= main_x 27), 48224#(<= main_x 28), 48225#(<= main_x 29), 48226#(<= main_x 30), 48227#(<= main_x 31), 48228#(<= main_x 32), 48229#(<= main_x 33), 48230#(<= main_x 34), 48231#(<= main_x 35), 48232#(<= main_x 36), 48233#(<= main_x 37), 48234#(<= main_x 38), 48235#(<= main_x 39), 48236#(<= main_x 40), 48237#(<= main_x 41), 48238#(<= main_x 42), 48239#(<= main_x 43), 48240#(<= main_x 44), 48241#(<= main_x 45), 48242#(<= main_x 46), 48243#(<= main_x 47), 48244#(<= main_x 48), 48245#(<= main_x 49), 48246#(<= main_x 50), 48247#(<= main_x 51), 48248#(<= main_x 52), 48249#(<= main_x 53), 48250#(<= main_x 54), 48251#(<= main_x 55), 48252#(<= main_x 56), 48253#(<= main_x 57), 48254#(<= main_x 58), 48255#(<= main_x 59), 48256#(<= main_x 60), 48257#(<= main_x 61), 48258#(<= main_x 62), 48259#(<= main_x 63), 48260#(<= main_x 64), 48261#(<= main_x 65), 48262#(<= main_x 66), 48263#(<= main_x 67), 48264#(<= main_x 68), 48265#(<= main_x 69), 48266#(<= main_x 70), 48267#(<= main_x 71), 48268#(<= main_x 72), 48269#(<= main_x 73), 48270#(<= main_x 74), 48271#(<= main_x 75), 48272#(<= main_x 76), 48273#(<= main_x 77), 48274#(<= main_x 78), 48275#(<= main_x 79), 48276#(<= main_x 80), 48277#(<= main_x 81), 48278#(<= main_x 82), 48279#(<= main_x 83), 48280#(<= main_x 84), 48281#(<= main_x 85), 48282#(<= main_x 86), 48283#(<= main_x 87), 48284#(<= main_x 88), 48285#(<= main_x 89), 48286#(<= main_x 90), 48287#(<= main_x 91), 48288#(<= main_x 92), 48289#(<= main_x 93), 48290#(<= main_x 94), 48291#(<= main_x 95), 48292#(<= main_x 96), 48293#(<= main_x 97), 48294#(<= main_x 98), 48295#(<= main_x 99), 48296#(<= main_x 100), 48297#(<= main_x 101), 48298#(<= main_x 102), 48299#(<= main_x 103), 48300#(<= main_x 104), 48301#(<= main_x 105), 48302#(<= main_x 106), 48303#(<= main_x 107), 48304#(<= main_x 108), 48305#(<= main_x 109), 48306#(<= main_x 110), 48307#(<= main_x 111), 48308#(<= main_x 112), 48309#(<= main_x 113), 48310#(<= main_x 114), 48311#(<= main_x 115), 48312#(<= main_x 116), 48313#(<= main_x 117), 48314#(<= main_x 118), 48315#(<= main_x 119), 48316#(<= main_x 120), 48317#(<= main_x 121), 48318#(<= main_x 122), 48319#(<= main_x 123), 48320#(<= main_x 124), 48321#(<= main_x 125), 48322#(<= main_x 126), 48323#(<= main_x 127), 48324#(<= main_x 128), 48325#(<= main_x 129), 48326#(<= main_x 130), 48327#(<= main_x 131), 48328#(<= main_x 132), 48329#(<= main_x 133), 48330#(<= main_x 134)] [2018-07-23 13:55:28,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,038 INFO L450 AbstractCegarLoop]: Interpolant automaton has 137 states [2018-07-23 13:55:28,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2018-07-23 13:55:28,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:55:28,040 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand 137 states. [2018-07-23 13:55:28,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:28,227 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2018-07-23 13:55:28,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2018-07-23 13:55:28,227 INFO L78 Accepts]: Start accepts. Automaton has 137 states. Word has length 137 [2018-07-23 13:55:28,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:28,227 INFO L225 Difference]: With dead ends: 141 [2018-07-23 13:55:28,228 INFO L226 Difference]: Without dead ends: 139 [2018-07-23 13:55:28,228 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:55:28,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-07-23 13:55:28,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-07-23 13:55:28,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-07-23 13:55:28,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2018-07-23 13:55:28,231 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 137 [2018-07-23 13:55:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:28,231 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2018-07-23 13:55:28,231 INFO L472 AbstractCegarLoop]: Interpolant automaton has 137 states. [2018-07-23 13:55:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2018-07-23 13:55:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 13:55:28,232 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:28,232 INFO L357 BasicCegarLoop]: trace histogram [135, 1, 1, 1] [2018-07-23 13:55:28,232 INFO L414 AbstractCegarLoop]: === Iteration 136 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1540653382, now seen corresponding path program 135 times [2018-07-23 13:55:28,232 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,884 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:28,884 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2018-07-23 13:55:28,884 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,885 INFO L185 omatonBuilderFactory]: Interpolants [48896#(<= main_x 3), 48897#(<= main_x 4), 48898#(<= main_x 5), 48899#(<= main_x 6), 48900#(<= main_x 7), 48901#(<= main_x 8), 48902#(<= main_x 9), 48903#(<= main_x 10), 48904#(<= main_x 11), 48905#(<= main_x 12), 48906#(<= main_x 13), 48907#(<= main_x 14), 48908#(<= main_x 15), 48909#(<= main_x 16), 48910#(<= main_x 17), 48911#(<= main_x 18), 48912#(<= main_x 19), 48913#(<= main_x 20), 48914#(<= main_x 21), 48915#(<= main_x 22), 48916#(<= main_x 23), 48917#(<= main_x 24), 48918#(<= main_x 25), 48919#(<= main_x 26), 48920#(<= main_x 27), 48921#(<= main_x 28), 48922#(<= main_x 29), 48923#(<= main_x 30), 48924#(<= main_x 31), 48925#(<= main_x 32), 48926#(<= main_x 33), 48927#(<= main_x 34), 48928#(<= main_x 35), 48929#(<= main_x 36), 48930#(<= main_x 37), 48931#(<= main_x 38), 48932#(<= main_x 39), 48933#(<= main_x 40), 48934#(<= main_x 41), 48935#(<= main_x 42), 48936#(<= main_x 43), 48937#(<= main_x 44), 48938#(<= main_x 45), 48939#(<= main_x 46), 48940#(<= main_x 47), 48941#(<= main_x 48), 48942#(<= main_x 49), 48943#(<= main_x 50), 48944#(<= main_x 51), 48945#(<= main_x 52), 48946#(<= main_x 53), 48947#(<= main_x 54), 48948#(<= main_x 55), 48949#(<= main_x 56), 48950#(<= main_x 57), 48951#(<= main_x 58), 48952#(<= main_x 59), 48953#(<= main_x 60), 48954#(<= main_x 61), 48955#(<= main_x 62), 48956#(<= main_x 63), 48957#(<= main_x 64), 48958#(<= main_x 65), 48959#(<= main_x 66), 48960#(<= main_x 67), 48961#(<= main_x 68), 48962#(<= main_x 69), 48963#(<= main_x 70), 48964#(<= main_x 71), 48965#(<= main_x 72), 48966#(<= main_x 73), 48967#(<= main_x 74), 48968#(<= main_x 75), 48969#(<= main_x 76), 48970#(<= main_x 77), 48971#(<= main_x 78), 48972#(<= main_x 79), 48973#(<= main_x 80), 48974#(<= main_x 81), 48975#(<= main_x 82), 48976#(<= main_x 83), 48977#(<= main_x 84), 48978#(<= main_x 85), 48979#(<= main_x 86), 48980#(<= main_x 87), 48981#(<= main_x 88), 48982#(<= main_x 89), 48983#(<= main_x 90), 48984#(<= main_x 91), 48985#(<= main_x 92), 48986#(<= main_x 93), 48987#(<= main_x 94), 48988#(<= main_x 95), 48989#(<= main_x 96), 48990#(<= main_x 97), 48991#(<= main_x 98), 48992#(<= main_x 99), 48993#(<= main_x 100), 48994#(<= main_x 101), 48995#(<= main_x 102), 48996#(<= main_x 103), 48997#(<= main_x 104), 48998#(<= main_x 105), 48999#(<= main_x 106), 49000#(<= main_x 107), 49001#(<= main_x 108), 49002#(<= main_x 109), 49003#(<= main_x 110), 49004#(<= main_x 111), 49005#(<= main_x 112), 49006#(<= main_x 113), 49007#(<= main_x 114), 49008#(<= main_x 115), 49009#(<= main_x 116), 49010#(<= main_x 117), 49011#(<= main_x 118), 49012#(<= main_x 119), 49013#(<= main_x 120), 49014#(<= main_x 121), 49015#(<= main_x 122), 49016#(<= main_x 123), 49017#(<= main_x 124), 49018#(<= main_x 125), 49019#(<= main_x 126), 49020#(<= main_x 127), 49021#(<= main_x 128), 49022#(<= main_x 129), 49023#(<= main_x 130), 49024#(<= main_x 131), 49025#(<= main_x 132), 49026#(<= main_x 133), 49027#(<= main_x 134), 49028#(<= main_x 135), 48891#true, 48892#false, 48893#(<= main_x 0), 48894#(<= main_x 1), 48895#(<= main_x 2)] [2018-07-23 13:55:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,886 INFO L450 AbstractCegarLoop]: Interpolant automaton has 138 states [2018-07-23 13:55:28,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2018-07-23 13:55:28,888 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:55:28,888 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 138 states. [2018-07-23 13:55:29,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:29,184 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2018-07-23 13:55:29,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:55:29,185 INFO L78 Accepts]: Start accepts. Automaton has 138 states. Word has length 138 [2018-07-23 13:55:29,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:29,185 INFO L225 Difference]: With dead ends: 142 [2018-07-23 13:55:29,185 INFO L226 Difference]: Without dead ends: 140 [2018-07-23 13:55:29,186 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:55:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-07-23 13:55:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-07-23 13:55:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-23 13:55:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2018-07-23 13:55:29,188 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 138 [2018-07-23 13:55:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:29,188 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2018-07-23 13:55:29,188 INFO L472 AbstractCegarLoop]: Interpolant automaton has 138 states. [2018-07-23 13:55:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2018-07-23 13:55:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-23 13:55:29,189 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:29,189 INFO L357 BasicCegarLoop]: trace histogram [136, 1, 1, 1] [2018-07-23 13:55:29,189 INFO L414 AbstractCegarLoop]: === Iteration 137 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:29,189 INFO L82 PathProgramCache]: Analyzing trace with hash 515610720, now seen corresponding path program 136 times [2018-07-23 13:55:29,189 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:29,662 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:29,662 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [138] total 138 [2018-07-23 13:55:29,662 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:29,662 INFO L185 omatonBuilderFactory]: Interpolants [49664#(<= main_x 69), 49665#(<= main_x 70), 49666#(<= main_x 71), 49667#(<= main_x 72), 49668#(<= main_x 73), 49669#(<= main_x 74), 49670#(<= main_x 75), 49671#(<= main_x 76), 49672#(<= main_x 77), 49673#(<= main_x 78), 49674#(<= main_x 79), 49675#(<= main_x 80), 49676#(<= main_x 81), 49677#(<= main_x 82), 49678#(<= main_x 83), 49679#(<= main_x 84), 49680#(<= main_x 85), 49681#(<= main_x 86), 49682#(<= main_x 87), 49683#(<= main_x 88), 49684#(<= main_x 89), 49685#(<= main_x 90), 49686#(<= main_x 91), 49687#(<= main_x 92), 49688#(<= main_x 93), 49689#(<= main_x 94), 49690#(<= main_x 95), 49691#(<= main_x 96), 49692#(<= main_x 97), 49693#(<= main_x 98), 49694#(<= main_x 99), 49695#(<= main_x 100), 49696#(<= main_x 101), 49697#(<= main_x 102), 49698#(<= main_x 103), 49699#(<= main_x 104), 49700#(<= main_x 105), 49701#(<= main_x 106), 49702#(<= main_x 107), 49703#(<= main_x 108), 49704#(<= main_x 109), 49705#(<= main_x 110), 49706#(<= main_x 111), 49707#(<= main_x 112), 49708#(<= main_x 113), 49709#(<= main_x 114), 49710#(<= main_x 115), 49711#(<= main_x 116), 49712#(<= main_x 117), 49713#(<= main_x 118), 49714#(<= main_x 119), 49715#(<= main_x 120), 49716#(<= main_x 121), 49717#(<= main_x 122), 49718#(<= main_x 123), 49719#(<= main_x 124), 49720#(<= main_x 125), 49721#(<= main_x 126), 49722#(<= main_x 127), 49723#(<= main_x 128), 49724#(<= main_x 129), 49725#(<= main_x 130), 49726#(<= main_x 131), 49727#(<= main_x 132), 49728#(<= main_x 133), 49729#(<= main_x 134), 49730#(<= main_x 135), 49731#(<= main_x 136), 49593#true, 49594#false, 49595#(<= main_x 0), 49596#(<= main_x 1), 49597#(<= main_x 2), 49598#(<= main_x 3), 49599#(<= main_x 4), 49600#(<= main_x 5), 49601#(<= main_x 6), 49602#(<= main_x 7), 49603#(<= main_x 8), 49604#(<= main_x 9), 49605#(<= main_x 10), 49606#(<= main_x 11), 49607#(<= main_x 12), 49608#(<= main_x 13), 49609#(<= main_x 14), 49610#(<= main_x 15), 49611#(<= main_x 16), 49612#(<= main_x 17), 49613#(<= main_x 18), 49614#(<= main_x 19), 49615#(<= main_x 20), 49616#(<= main_x 21), 49617#(<= main_x 22), 49618#(<= main_x 23), 49619#(<= main_x 24), 49620#(<= main_x 25), 49621#(<= main_x 26), 49622#(<= main_x 27), 49623#(<= main_x 28), 49624#(<= main_x 29), 49625#(<= main_x 30), 49626#(<= main_x 31), 49627#(<= main_x 32), 49628#(<= main_x 33), 49629#(<= main_x 34), 49630#(<= main_x 35), 49631#(<= main_x 36), 49632#(<= main_x 37), 49633#(<= main_x 38), 49634#(<= main_x 39), 49635#(<= main_x 40), 49636#(<= main_x 41), 49637#(<= main_x 42), 49638#(<= main_x 43), 49639#(<= main_x 44), 49640#(<= main_x 45), 49641#(<= main_x 46), 49642#(<= main_x 47), 49643#(<= main_x 48), 49644#(<= main_x 49), 49645#(<= main_x 50), 49646#(<= main_x 51), 49647#(<= main_x 52), 49648#(<= main_x 53), 49649#(<= main_x 54), 49650#(<= main_x 55), 49651#(<= main_x 56), 49652#(<= main_x 57), 49653#(<= main_x 58), 49654#(<= main_x 59), 49655#(<= main_x 60), 49656#(<= main_x 61), 49657#(<= main_x 62), 49658#(<= main_x 63), 49659#(<= main_x 64), 49660#(<= main_x 65), 49661#(<= main_x 66), 49662#(<= main_x 67), 49663#(<= main_x 68)] [2018-07-23 13:55:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:29,663 INFO L450 AbstractCegarLoop]: Interpolant automaton has 139 states [2018-07-23 13:55:29,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2018-07-23 13:55:29,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:55:29,666 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand 139 states. [2018-07-23 13:55:29,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:29,781 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2018-07-23 13:55:29,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2018-07-23 13:55:29,781 INFO L78 Accepts]: Start accepts. Automaton has 139 states. Word has length 139 [2018-07-23 13:55:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:29,782 INFO L225 Difference]: With dead ends: 143 [2018-07-23 13:55:29,782 INFO L226 Difference]: Without dead ends: 141 [2018-07-23 13:55:29,783 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:55:29,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-07-23 13:55:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-07-23 13:55:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-07-23 13:55:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-07-23 13:55:29,785 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 139 [2018-07-23 13:55:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:29,785 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-07-23 13:55:29,785 INFO L472 AbstractCegarLoop]: Interpolant automaton has 139 states. [2018-07-23 13:55:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-07-23 13:55:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 13:55:29,786 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:29,786 INFO L357 BasicCegarLoop]: trace histogram [137, 1, 1, 1] [2018-07-23 13:55:29,786 INFO L414 AbstractCegarLoop]: === Iteration 138 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:29,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1195940730, now seen corresponding path program 137 times [2018-07-23 13:55:29,786 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:30,299 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:30,299 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2018-07-23 13:55:30,299 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:30,300 INFO L185 omatonBuilderFactory]: Interpolants [50432#(<= main_x 130), 50433#(<= main_x 131), 50434#(<= main_x 132), 50435#(<= main_x 133), 50436#(<= main_x 134), 50437#(<= main_x 135), 50438#(<= main_x 136), 50439#(<= main_x 137), 50300#true, 50301#false, 50302#(<= main_x 0), 50303#(<= main_x 1), 50304#(<= main_x 2), 50305#(<= main_x 3), 50306#(<= main_x 4), 50307#(<= main_x 5), 50308#(<= main_x 6), 50309#(<= main_x 7), 50310#(<= main_x 8), 50311#(<= main_x 9), 50312#(<= main_x 10), 50313#(<= main_x 11), 50314#(<= main_x 12), 50315#(<= main_x 13), 50316#(<= main_x 14), 50317#(<= main_x 15), 50318#(<= main_x 16), 50319#(<= main_x 17), 50320#(<= main_x 18), 50321#(<= main_x 19), 50322#(<= main_x 20), 50323#(<= main_x 21), 50324#(<= main_x 22), 50325#(<= main_x 23), 50326#(<= main_x 24), 50327#(<= main_x 25), 50328#(<= main_x 26), 50329#(<= main_x 27), 50330#(<= main_x 28), 50331#(<= main_x 29), 50332#(<= main_x 30), 50333#(<= main_x 31), 50334#(<= main_x 32), 50335#(<= main_x 33), 50336#(<= main_x 34), 50337#(<= main_x 35), 50338#(<= main_x 36), 50339#(<= main_x 37), 50340#(<= main_x 38), 50341#(<= main_x 39), 50342#(<= main_x 40), 50343#(<= main_x 41), 50344#(<= main_x 42), 50345#(<= main_x 43), 50346#(<= main_x 44), 50347#(<= main_x 45), 50348#(<= main_x 46), 50349#(<= main_x 47), 50350#(<= main_x 48), 50351#(<= main_x 49), 50352#(<= main_x 50), 50353#(<= main_x 51), 50354#(<= main_x 52), 50355#(<= main_x 53), 50356#(<= main_x 54), 50357#(<= main_x 55), 50358#(<= main_x 56), 50359#(<= main_x 57), 50360#(<= main_x 58), 50361#(<= main_x 59), 50362#(<= main_x 60), 50363#(<= main_x 61), 50364#(<= main_x 62), 50365#(<= main_x 63), 50366#(<= main_x 64), 50367#(<= main_x 65), 50368#(<= main_x 66), 50369#(<= main_x 67), 50370#(<= main_x 68), 50371#(<= main_x 69), 50372#(<= main_x 70), 50373#(<= main_x 71), 50374#(<= main_x 72), 50375#(<= main_x 73), 50376#(<= main_x 74), 50377#(<= main_x 75), 50378#(<= main_x 76), 50379#(<= main_x 77), 50380#(<= main_x 78), 50381#(<= main_x 79), 50382#(<= main_x 80), 50383#(<= main_x 81), 50384#(<= main_x 82), 50385#(<= main_x 83), 50386#(<= main_x 84), 50387#(<= main_x 85), 50388#(<= main_x 86), 50389#(<= main_x 87), 50390#(<= main_x 88), 50391#(<= main_x 89), 50392#(<= main_x 90), 50393#(<= main_x 91), 50394#(<= main_x 92), 50395#(<= main_x 93), 50396#(<= main_x 94), 50397#(<= main_x 95), 50398#(<= main_x 96), 50399#(<= main_x 97), 50400#(<= main_x 98), 50401#(<= main_x 99), 50402#(<= main_x 100), 50403#(<= main_x 101), 50404#(<= main_x 102), 50405#(<= main_x 103), 50406#(<= main_x 104), 50407#(<= main_x 105), 50408#(<= main_x 106), 50409#(<= main_x 107), 50410#(<= main_x 108), 50411#(<= main_x 109), 50412#(<= main_x 110), 50413#(<= main_x 111), 50414#(<= main_x 112), 50415#(<= main_x 113), 50416#(<= main_x 114), 50417#(<= main_x 115), 50418#(<= main_x 116), 50419#(<= main_x 117), 50420#(<= main_x 118), 50421#(<= main_x 119), 50422#(<= main_x 120), 50423#(<= main_x 121), 50424#(<= main_x 122), 50425#(<= main_x 123), 50426#(<= main_x 124), 50427#(<= main_x 125), 50428#(<= main_x 126), 50429#(<= main_x 127), 50430#(<= main_x 128), 50431#(<= main_x 129)] [2018-07-23 13:55:30,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:30,300 INFO L450 AbstractCegarLoop]: Interpolant automaton has 140 states [2018-07-23 13:55:30,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2018-07-23 13:55:30,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:55:30,303 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 140 states. [2018-07-23 13:55:30,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:30,559 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-07-23 13:55:30,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:55:30,559 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 140 [2018-07-23 13:55:30,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:30,559 INFO L225 Difference]: With dead ends: 144 [2018-07-23 13:55:30,559 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:55:30,561 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:55:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:55:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-07-23 13:55:30,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-07-23 13:55:30,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2018-07-23 13:55:30,563 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 140 [2018-07-23 13:55:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:30,563 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2018-07-23 13:55:30,563 INFO L472 AbstractCegarLoop]: Interpolant automaton has 140 states. [2018-07-23 13:55:30,563 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2018-07-23 13:55:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 13:55:30,564 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:30,564 INFO L357 BasicCegarLoop]: trace histogram [138, 1, 1, 1] [2018-07-23 13:55:30,564 INFO L414 AbstractCegarLoop]: === Iteration 139 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:30,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1580539168, now seen corresponding path program 138 times [2018-07-23 13:55:30,564 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,103 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:31,104 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [140] total 140 [2018-07-23 13:55:31,104 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,104 INFO L185 omatonBuilderFactory]: Interpolants [51012#true, 51013#false, 51014#(<= main_x 0), 51015#(<= main_x 1), 51016#(<= main_x 2), 51017#(<= main_x 3), 51018#(<= main_x 4), 51019#(<= main_x 5), 51020#(<= main_x 6), 51021#(<= main_x 7), 51022#(<= main_x 8), 51023#(<= main_x 9), 51024#(<= main_x 10), 51025#(<= main_x 11), 51026#(<= main_x 12), 51027#(<= main_x 13), 51028#(<= main_x 14), 51029#(<= main_x 15), 51030#(<= main_x 16), 51031#(<= main_x 17), 51032#(<= main_x 18), 51033#(<= main_x 19), 51034#(<= main_x 20), 51035#(<= main_x 21), 51036#(<= main_x 22), 51037#(<= main_x 23), 51038#(<= main_x 24), 51039#(<= main_x 25), 51040#(<= main_x 26), 51041#(<= main_x 27), 51042#(<= main_x 28), 51043#(<= main_x 29), 51044#(<= main_x 30), 51045#(<= main_x 31), 51046#(<= main_x 32), 51047#(<= main_x 33), 51048#(<= main_x 34), 51049#(<= main_x 35), 51050#(<= main_x 36), 51051#(<= main_x 37), 51052#(<= main_x 38), 51053#(<= main_x 39), 51054#(<= main_x 40), 51055#(<= main_x 41), 51056#(<= main_x 42), 51057#(<= main_x 43), 51058#(<= main_x 44), 51059#(<= main_x 45), 51060#(<= main_x 46), 51061#(<= main_x 47), 51062#(<= main_x 48), 51063#(<= main_x 49), 51064#(<= main_x 50), 51065#(<= main_x 51), 51066#(<= main_x 52), 51067#(<= main_x 53), 51068#(<= main_x 54), 51069#(<= main_x 55), 51070#(<= main_x 56), 51071#(<= main_x 57), 51072#(<= main_x 58), 51073#(<= main_x 59), 51074#(<= main_x 60), 51075#(<= main_x 61), 51076#(<= main_x 62), 51077#(<= main_x 63), 51078#(<= main_x 64), 51079#(<= main_x 65), 51080#(<= main_x 66), 51081#(<= main_x 67), 51082#(<= main_x 68), 51083#(<= main_x 69), 51084#(<= main_x 70), 51085#(<= main_x 71), 51086#(<= main_x 72), 51087#(<= main_x 73), 51088#(<= main_x 74), 51089#(<= main_x 75), 51090#(<= main_x 76), 51091#(<= main_x 77), 51092#(<= main_x 78), 51093#(<= main_x 79), 51094#(<= main_x 80), 51095#(<= main_x 81), 51096#(<= main_x 82), 51097#(<= main_x 83), 51098#(<= main_x 84), 51099#(<= main_x 85), 51100#(<= main_x 86), 51101#(<= main_x 87), 51102#(<= main_x 88), 51103#(<= main_x 89), 51104#(<= main_x 90), 51105#(<= main_x 91), 51106#(<= main_x 92), 51107#(<= main_x 93), 51108#(<= main_x 94), 51109#(<= main_x 95), 51110#(<= main_x 96), 51111#(<= main_x 97), 51112#(<= main_x 98), 51113#(<= main_x 99), 51114#(<= main_x 100), 51115#(<= main_x 101), 51116#(<= main_x 102), 51117#(<= main_x 103), 51118#(<= main_x 104), 51119#(<= main_x 105), 51120#(<= main_x 106), 51121#(<= main_x 107), 51122#(<= main_x 108), 51123#(<= main_x 109), 51124#(<= main_x 110), 51125#(<= main_x 111), 51126#(<= main_x 112), 51127#(<= main_x 113), 51128#(<= main_x 114), 51129#(<= main_x 115), 51130#(<= main_x 116), 51131#(<= main_x 117), 51132#(<= main_x 118), 51133#(<= main_x 119), 51134#(<= main_x 120), 51135#(<= main_x 121), 51136#(<= main_x 122), 51137#(<= main_x 123), 51138#(<= main_x 124), 51139#(<= main_x 125), 51140#(<= main_x 126), 51141#(<= main_x 127), 51142#(<= main_x 128), 51143#(<= main_x 129), 51144#(<= main_x 130), 51145#(<= main_x 131), 51146#(<= main_x 132), 51147#(<= main_x 133), 51148#(<= main_x 134), 51149#(<= main_x 135), 51150#(<= main_x 136), 51151#(<= main_x 137), 51152#(<= main_x 138)] [2018-07-23 13:55:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,105 INFO L450 AbstractCegarLoop]: Interpolant automaton has 141 states [2018-07-23 13:55:31,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2018-07-23 13:55:31,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:55:31,107 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand 141 states. [2018-07-23 13:55:31,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:31,379 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2018-07-23 13:55:31,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2018-07-23 13:55:31,379 INFO L78 Accepts]: Start accepts. Automaton has 141 states. Word has length 141 [2018-07-23 13:55:31,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:31,380 INFO L225 Difference]: With dead ends: 145 [2018-07-23 13:55:31,380 INFO L226 Difference]: Without dead ends: 143 [2018-07-23 13:55:31,381 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:55:31,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-07-23 13:55:31,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-07-23 13:55:31,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-07-23 13:55:31,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2018-07-23 13:55:31,383 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 141 [2018-07-23 13:55:31,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:31,383 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2018-07-23 13:55:31,384 INFO L472 AbstractCegarLoop]: Interpolant automaton has 141 states. [2018-07-23 13:55:31,384 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2018-07-23 13:55:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-23 13:55:31,384 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:31,384 INFO L357 BasicCegarLoop]: trace histogram [139, 1, 1, 1] [2018-07-23 13:55:31,385 INFO L414 AbstractCegarLoop]: === Iteration 140 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:31,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1752070086, now seen corresponding path program 139 times [2018-07-23 13:55:31,385 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 9730 backedges. 0 proven. 9730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,960 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:31,961 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2018-07-23 13:55:31,961 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,961 INFO L185 omatonBuilderFactory]: Interpolants [51729#true, 51730#false, 51731#(<= main_x 0), 51732#(<= main_x 1), 51733#(<= main_x 2), 51734#(<= main_x 3), 51735#(<= main_x 4), 51736#(<= main_x 5), 51737#(<= main_x 6), 51738#(<= main_x 7), 51739#(<= main_x 8), 51740#(<= main_x 9), 51741#(<= main_x 10), 51742#(<= main_x 11), 51743#(<= main_x 12), 51744#(<= main_x 13), 51745#(<= main_x 14), 51746#(<= main_x 15), 51747#(<= main_x 16), 51748#(<= main_x 17), 51749#(<= main_x 18), 51750#(<= main_x 19), 51751#(<= main_x 20), 51752#(<= main_x 21), 51753#(<= main_x 22), 51754#(<= main_x 23), 51755#(<= main_x 24), 51756#(<= main_x 25), 51757#(<= main_x 26), 51758#(<= main_x 27), 51759#(<= main_x 28), 51760#(<= main_x 29), 51761#(<= main_x 30), 51762#(<= main_x 31), 51763#(<= main_x 32), 51764#(<= main_x 33), 51765#(<= main_x 34), 51766#(<= main_x 35), 51767#(<= main_x 36), 51768#(<= main_x 37), 51769#(<= main_x 38), 51770#(<= main_x 39), 51771#(<= main_x 40), 51772#(<= main_x 41), 51773#(<= main_x 42), 51774#(<= main_x 43), 51775#(<= main_x 44), 51776#(<= main_x 45), 51777#(<= main_x 46), 51778#(<= main_x 47), 51779#(<= main_x 48), 51780#(<= main_x 49), 51781#(<= main_x 50), 51782#(<= main_x 51), 51783#(<= main_x 52), 51784#(<= main_x 53), 51785#(<= main_x 54), 51786#(<= main_x 55), 51787#(<= main_x 56), 51788#(<= main_x 57), 51789#(<= main_x 58), 51790#(<= main_x 59), 51791#(<= main_x 60), 51792#(<= main_x 61), 51793#(<= main_x 62), 51794#(<= main_x 63), 51795#(<= main_x 64), 51796#(<= main_x 65), 51797#(<= main_x 66), 51798#(<= main_x 67), 51799#(<= main_x 68), 51800#(<= main_x 69), 51801#(<= main_x 70), 51802#(<= main_x 71), 51803#(<= main_x 72), 51804#(<= main_x 73), 51805#(<= main_x 74), 51806#(<= main_x 75), 51807#(<= main_x 76), 51808#(<= main_x 77), 51809#(<= main_x 78), 51810#(<= main_x 79), 51811#(<= main_x 80), 51812#(<= main_x 81), 51813#(<= main_x 82), 51814#(<= main_x 83), 51815#(<= main_x 84), 51816#(<= main_x 85), 51817#(<= main_x 86), 51818#(<= main_x 87), 51819#(<= main_x 88), 51820#(<= main_x 89), 51821#(<= main_x 90), 51822#(<= main_x 91), 51823#(<= main_x 92), 51824#(<= main_x 93), 51825#(<= main_x 94), 51826#(<= main_x 95), 51827#(<= main_x 96), 51828#(<= main_x 97), 51829#(<= main_x 98), 51830#(<= main_x 99), 51831#(<= main_x 100), 51832#(<= main_x 101), 51833#(<= main_x 102), 51834#(<= main_x 103), 51835#(<= main_x 104), 51836#(<= main_x 105), 51837#(<= main_x 106), 51838#(<= main_x 107), 51839#(<= main_x 108), 51840#(<= main_x 109), 51841#(<= main_x 110), 51842#(<= main_x 111), 51843#(<= main_x 112), 51844#(<= main_x 113), 51845#(<= main_x 114), 51846#(<= main_x 115), 51847#(<= main_x 116), 51848#(<= main_x 117), 51849#(<= main_x 118), 51850#(<= main_x 119), 51851#(<= main_x 120), 51852#(<= main_x 121), 51853#(<= main_x 122), 51854#(<= main_x 123), 51855#(<= main_x 124), 51856#(<= main_x 125), 51857#(<= main_x 126), 51858#(<= main_x 127), 51859#(<= main_x 128), 51860#(<= main_x 129), 51861#(<= main_x 130), 51862#(<= main_x 131), 51863#(<= main_x 132), 51864#(<= main_x 133), 51865#(<= main_x 134), 51866#(<= main_x 135), 51867#(<= main_x 136), 51868#(<= main_x 137), 51869#(<= main_x 138), 51870#(<= main_x 139)] [2018-07-23 13:55:31,962 INFO L134 CoverageAnalysis]: Checked inductivity of 9730 backedges. 0 proven. 9730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,962 INFO L450 AbstractCegarLoop]: Interpolant automaton has 142 states [2018-07-23 13:55:31,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2018-07-23 13:55:31,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:55:31,964 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand 142 states. [2018-07-23 13:55:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:32,291 INFO L93 Difference]: Finished difference Result 146 states and 146 transitions. [2018-07-23 13:55:32,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:55:32,291 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 142 [2018-07-23 13:55:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:32,291 INFO L225 Difference]: With dead ends: 146 [2018-07-23 13:55:32,291 INFO L226 Difference]: Without dead ends: 144 [2018-07-23 13:55:32,292 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:55:32,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-07-23 13:55:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-07-23 13:55:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-07-23 13:55:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2018-07-23 13:55:32,295 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 142 [2018-07-23 13:55:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:32,296 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2018-07-23 13:55:32,296 INFO L472 AbstractCegarLoop]: Interpolant automaton has 142 states. [2018-07-23 13:55:32,296 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2018-07-23 13:55:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 13:55:32,296 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:32,297 INFO L357 BasicCegarLoop]: trace histogram [140, 1, 1, 1] [2018-07-23 13:55:32,297 INFO L414 AbstractCegarLoop]: === Iteration 141 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:32,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1520406048, now seen corresponding path program 140 times [2018-07-23 13:55:32,297 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:32,868 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:32,868 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [142] total 142 [2018-07-23 13:55:32,868 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:32,868 INFO L185 omatonBuilderFactory]: Interpolants [52480#(<= main_x 27), 52481#(<= main_x 28), 52482#(<= main_x 29), 52483#(<= main_x 30), 52484#(<= main_x 31), 52485#(<= main_x 32), 52486#(<= main_x 33), 52487#(<= main_x 34), 52488#(<= main_x 35), 52489#(<= main_x 36), 52490#(<= main_x 37), 52491#(<= main_x 38), 52492#(<= main_x 39), 52493#(<= main_x 40), 52494#(<= main_x 41), 52495#(<= main_x 42), 52496#(<= main_x 43), 52497#(<= main_x 44), 52498#(<= main_x 45), 52499#(<= main_x 46), 52500#(<= main_x 47), 52501#(<= main_x 48), 52502#(<= main_x 49), 52503#(<= main_x 50), 52504#(<= main_x 51), 52505#(<= main_x 52), 52506#(<= main_x 53), 52507#(<= main_x 54), 52508#(<= main_x 55), 52509#(<= main_x 56), 52510#(<= main_x 57), 52511#(<= main_x 58), 52512#(<= main_x 59), 52513#(<= main_x 60), 52514#(<= main_x 61), 52515#(<= main_x 62), 52516#(<= main_x 63), 52517#(<= main_x 64), 52518#(<= main_x 65), 52519#(<= main_x 66), 52520#(<= main_x 67), 52521#(<= main_x 68), 52522#(<= main_x 69), 52523#(<= main_x 70), 52524#(<= main_x 71), 52525#(<= main_x 72), 52526#(<= main_x 73), 52527#(<= main_x 74), 52528#(<= main_x 75), 52529#(<= main_x 76), 52530#(<= main_x 77), 52531#(<= main_x 78), 52532#(<= main_x 79), 52533#(<= main_x 80), 52534#(<= main_x 81), 52535#(<= main_x 82), 52536#(<= main_x 83), 52537#(<= main_x 84), 52538#(<= main_x 85), 52539#(<= main_x 86), 52540#(<= main_x 87), 52541#(<= main_x 88), 52542#(<= main_x 89), 52543#(<= main_x 90), 52544#(<= main_x 91), 52545#(<= main_x 92), 52546#(<= main_x 93), 52547#(<= main_x 94), 52548#(<= main_x 95), 52549#(<= main_x 96), 52550#(<= main_x 97), 52551#(<= main_x 98), 52552#(<= main_x 99), 52553#(<= main_x 100), 52554#(<= main_x 101), 52555#(<= main_x 102), 52556#(<= main_x 103), 52557#(<= main_x 104), 52558#(<= main_x 105), 52559#(<= main_x 106), 52560#(<= main_x 107), 52561#(<= main_x 108), 52562#(<= main_x 109), 52563#(<= main_x 110), 52564#(<= main_x 111), 52565#(<= main_x 112), 52566#(<= main_x 113), 52567#(<= main_x 114), 52568#(<= main_x 115), 52569#(<= main_x 116), 52570#(<= main_x 117), 52571#(<= main_x 118), 52572#(<= main_x 119), 52573#(<= main_x 120), 52574#(<= main_x 121), 52575#(<= main_x 122), 52576#(<= main_x 123), 52577#(<= main_x 124), 52578#(<= main_x 125), 52579#(<= main_x 126), 52580#(<= main_x 127), 52581#(<= main_x 128), 52582#(<= main_x 129), 52583#(<= main_x 130), 52584#(<= main_x 131), 52585#(<= main_x 132), 52586#(<= main_x 133), 52587#(<= main_x 134), 52588#(<= main_x 135), 52589#(<= main_x 136), 52590#(<= main_x 137), 52591#(<= main_x 138), 52592#(<= main_x 139), 52593#(<= main_x 140), 52451#true, 52452#false, 52453#(<= main_x 0), 52454#(<= main_x 1), 52455#(<= main_x 2), 52456#(<= main_x 3), 52457#(<= main_x 4), 52458#(<= main_x 5), 52459#(<= main_x 6), 52460#(<= main_x 7), 52461#(<= main_x 8), 52462#(<= main_x 9), 52463#(<= main_x 10), 52464#(<= main_x 11), 52465#(<= main_x 12), 52466#(<= main_x 13), 52467#(<= main_x 14), 52468#(<= main_x 15), 52469#(<= main_x 16), 52470#(<= main_x 17), 52471#(<= main_x 18), 52472#(<= main_x 19), 52473#(<= main_x 20), 52474#(<= main_x 21), 52475#(<= main_x 22), 52476#(<= main_x 23), 52477#(<= main_x 24), 52478#(<= main_x 25), 52479#(<= main_x 26)] [2018-07-23 13:55:32,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:32,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 143 states [2018-07-23 13:55:32,871 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2018-07-23 13:55:32,871 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:55:32,872 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand 143 states. [2018-07-23 13:55:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:33,129 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-07-23 13:55:33,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2018-07-23 13:55:33,129 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 143 [2018-07-23 13:55:33,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:33,130 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:55:33,130 INFO L226 Difference]: Without dead ends: 145 [2018-07-23 13:55:33,131 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:55:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-07-23 13:55:33,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-07-23 13:55:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-23 13:55:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2018-07-23 13:55:33,133 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 143 [2018-07-23 13:55:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:33,134 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2018-07-23 13:55:33,134 INFO L472 AbstractCegarLoop]: Interpolant automaton has 143 states. [2018-07-23 13:55:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2018-07-23 13:55:33,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 13:55:33,134 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:33,135 INFO L357 BasicCegarLoop]: trace histogram [141, 1, 1, 1] [2018-07-23 13:55:33,135 INFO L414 AbstractCegarLoop]: === Iteration 142 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:33,135 INFO L82 PathProgramCache]: Analyzing trace with hash 112048902, now seen corresponding path program 141 times [2018-07-23 13:55:33,135 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10011 backedges. 0 proven. 10011 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:33,700 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:33,700 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2018-07-23 13:55:33,700 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:33,701 INFO L185 omatonBuilderFactory]: Interpolants [53248#(<= main_x 68), 53249#(<= main_x 69), 53250#(<= main_x 70), 53251#(<= main_x 71), 53252#(<= main_x 72), 53253#(<= main_x 73), 53254#(<= main_x 74), 53255#(<= main_x 75), 53256#(<= main_x 76), 53257#(<= main_x 77), 53258#(<= main_x 78), 53259#(<= main_x 79), 53260#(<= main_x 80), 53261#(<= main_x 81), 53262#(<= main_x 82), 53263#(<= main_x 83), 53264#(<= main_x 84), 53265#(<= main_x 85), 53266#(<= main_x 86), 53267#(<= main_x 87), 53268#(<= main_x 88), 53269#(<= main_x 89), 53270#(<= main_x 90), 53271#(<= main_x 91), 53272#(<= main_x 92), 53273#(<= main_x 93), 53274#(<= main_x 94), 53275#(<= main_x 95), 53276#(<= main_x 96), 53277#(<= main_x 97), 53278#(<= main_x 98), 53279#(<= main_x 99), 53280#(<= main_x 100), 53281#(<= main_x 101), 53282#(<= main_x 102), 53283#(<= main_x 103), 53284#(<= main_x 104), 53285#(<= main_x 105), 53286#(<= main_x 106), 53287#(<= main_x 107), 53288#(<= main_x 108), 53289#(<= main_x 109), 53290#(<= main_x 110), 53291#(<= main_x 111), 53292#(<= main_x 112), 53293#(<= main_x 113), 53294#(<= main_x 114), 53295#(<= main_x 115), 53296#(<= main_x 116), 53297#(<= main_x 117), 53298#(<= main_x 118), 53299#(<= main_x 119), 53300#(<= main_x 120), 53301#(<= main_x 121), 53302#(<= main_x 122), 53303#(<= main_x 123), 53304#(<= main_x 124), 53305#(<= main_x 125), 53306#(<= main_x 126), 53307#(<= main_x 127), 53308#(<= main_x 128), 53309#(<= main_x 129), 53310#(<= main_x 130), 53311#(<= main_x 131), 53312#(<= main_x 132), 53313#(<= main_x 133), 53314#(<= main_x 134), 53315#(<= main_x 135), 53316#(<= main_x 136), 53317#(<= main_x 137), 53318#(<= main_x 138), 53319#(<= main_x 139), 53320#(<= main_x 140), 53321#(<= main_x 141), 53178#true, 53179#false, 53180#(<= main_x 0), 53181#(<= main_x 1), 53182#(<= main_x 2), 53183#(<= main_x 3), 53184#(<= main_x 4), 53185#(<= main_x 5), 53186#(<= main_x 6), 53187#(<= main_x 7), 53188#(<= main_x 8), 53189#(<= main_x 9), 53190#(<= main_x 10), 53191#(<= main_x 11), 53192#(<= main_x 12), 53193#(<= main_x 13), 53194#(<= main_x 14), 53195#(<= main_x 15), 53196#(<= main_x 16), 53197#(<= main_x 17), 53198#(<= main_x 18), 53199#(<= main_x 19), 53200#(<= main_x 20), 53201#(<= main_x 21), 53202#(<= main_x 22), 53203#(<= main_x 23), 53204#(<= main_x 24), 53205#(<= main_x 25), 53206#(<= main_x 26), 53207#(<= main_x 27), 53208#(<= main_x 28), 53209#(<= main_x 29), 53210#(<= main_x 30), 53211#(<= main_x 31), 53212#(<= main_x 32), 53213#(<= main_x 33), 53214#(<= main_x 34), 53215#(<= main_x 35), 53216#(<= main_x 36), 53217#(<= main_x 37), 53218#(<= main_x 38), 53219#(<= main_x 39), 53220#(<= main_x 40), 53221#(<= main_x 41), 53222#(<= main_x 42), 53223#(<= main_x 43), 53224#(<= main_x 44), 53225#(<= main_x 45), 53226#(<= main_x 46), 53227#(<= main_x 47), 53228#(<= main_x 48), 53229#(<= main_x 49), 53230#(<= main_x 50), 53231#(<= main_x 51), 53232#(<= main_x 52), 53233#(<= main_x 53), 53234#(<= main_x 54), 53235#(<= main_x 55), 53236#(<= main_x 56), 53237#(<= main_x 57), 53238#(<= main_x 58), 53239#(<= main_x 59), 53240#(<= main_x 60), 53241#(<= main_x 61), 53242#(<= main_x 62), 53243#(<= main_x 63), 53244#(<= main_x 64), 53245#(<= main_x 65), 53246#(<= main_x 66), 53247#(<= main_x 67)] [2018-07-23 13:55:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10011 backedges. 0 proven. 10011 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:33,701 INFO L450 AbstractCegarLoop]: Interpolant automaton has 144 states [2018-07-23 13:55:33,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2018-07-23 13:55:33,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:55:33,704 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand 144 states. [2018-07-23 13:55:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:33,828 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-07-23 13:55:33,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:55:33,828 INFO L78 Accepts]: Start accepts. Automaton has 144 states. Word has length 144 [2018-07-23 13:55:33,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:33,829 INFO L225 Difference]: With dead ends: 148 [2018-07-23 13:55:33,829 INFO L226 Difference]: Without dead ends: 146 [2018-07-23 13:55:33,830 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:55:33,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-07-23 13:55:33,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-07-23 13:55:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-07-23 13:55:33,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-07-23 13:55:33,832 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 144 [2018-07-23 13:55:33,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:33,832 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-07-23 13:55:33,832 INFO L472 AbstractCegarLoop]: Interpolant automaton has 144 states. [2018-07-23 13:55:33,832 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-07-23 13:55:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 13:55:33,833 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:33,833 INFO L357 BasicCegarLoop]: trace histogram [142, 1, 1, 1] [2018-07-23 13:55:33,833 INFO L414 AbstractCegarLoop]: === Iteration 143 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:33,833 INFO L82 PathProgramCache]: Analyzing trace with hash -821455200, now seen corresponding path program 142 times [2018-07-23 13:55:33,833 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:34,440 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:34,440 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [144] total 144 [2018-07-23 13:55:34,441 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:34,441 INFO L185 omatonBuilderFactory]: Interpolants [54016#(<= main_x 104), 54017#(<= main_x 105), 54018#(<= main_x 106), 54019#(<= main_x 107), 54020#(<= main_x 108), 54021#(<= main_x 109), 54022#(<= main_x 110), 54023#(<= main_x 111), 54024#(<= main_x 112), 54025#(<= main_x 113), 54026#(<= main_x 114), 54027#(<= main_x 115), 54028#(<= main_x 116), 54029#(<= main_x 117), 54030#(<= main_x 118), 54031#(<= main_x 119), 54032#(<= main_x 120), 54033#(<= main_x 121), 54034#(<= main_x 122), 54035#(<= main_x 123), 54036#(<= main_x 124), 54037#(<= main_x 125), 54038#(<= main_x 126), 54039#(<= main_x 127), 54040#(<= main_x 128), 54041#(<= main_x 129), 54042#(<= main_x 130), 54043#(<= main_x 131), 54044#(<= main_x 132), 54045#(<= main_x 133), 54046#(<= main_x 134), 54047#(<= main_x 135), 54048#(<= main_x 136), 54049#(<= main_x 137), 54050#(<= main_x 138), 54051#(<= main_x 139), 54052#(<= main_x 140), 54053#(<= main_x 141), 54054#(<= main_x 142), 53910#true, 53911#false, 53912#(<= main_x 0), 53913#(<= main_x 1), 53914#(<= main_x 2), 53915#(<= main_x 3), 53916#(<= main_x 4), 53917#(<= main_x 5), 53918#(<= main_x 6), 53919#(<= main_x 7), 53920#(<= main_x 8), 53921#(<= main_x 9), 53922#(<= main_x 10), 53923#(<= main_x 11), 53924#(<= main_x 12), 53925#(<= main_x 13), 53926#(<= main_x 14), 53927#(<= main_x 15), 53928#(<= main_x 16), 53929#(<= main_x 17), 53930#(<= main_x 18), 53931#(<= main_x 19), 53932#(<= main_x 20), 53933#(<= main_x 21), 53934#(<= main_x 22), 53935#(<= main_x 23), 53936#(<= main_x 24), 53937#(<= main_x 25), 53938#(<= main_x 26), 53939#(<= main_x 27), 53940#(<= main_x 28), 53941#(<= main_x 29), 53942#(<= main_x 30), 53943#(<= main_x 31), 53944#(<= main_x 32), 53945#(<= main_x 33), 53946#(<= main_x 34), 53947#(<= main_x 35), 53948#(<= main_x 36), 53949#(<= main_x 37), 53950#(<= main_x 38), 53951#(<= main_x 39), 53952#(<= main_x 40), 53953#(<= main_x 41), 53954#(<= main_x 42), 53955#(<= main_x 43), 53956#(<= main_x 44), 53957#(<= main_x 45), 53958#(<= main_x 46), 53959#(<= main_x 47), 53960#(<= main_x 48), 53961#(<= main_x 49), 53962#(<= main_x 50), 53963#(<= main_x 51), 53964#(<= main_x 52), 53965#(<= main_x 53), 53966#(<= main_x 54), 53967#(<= main_x 55), 53968#(<= main_x 56), 53969#(<= main_x 57), 53970#(<= main_x 58), 53971#(<= main_x 59), 53972#(<= main_x 60), 53973#(<= main_x 61), 53974#(<= main_x 62), 53975#(<= main_x 63), 53976#(<= main_x 64), 53977#(<= main_x 65), 53978#(<= main_x 66), 53979#(<= main_x 67), 53980#(<= main_x 68), 53981#(<= main_x 69), 53982#(<= main_x 70), 53983#(<= main_x 71), 53984#(<= main_x 72), 53985#(<= main_x 73), 53986#(<= main_x 74), 53987#(<= main_x 75), 53988#(<= main_x 76), 53989#(<= main_x 77), 53990#(<= main_x 78), 53991#(<= main_x 79), 53992#(<= main_x 80), 53993#(<= main_x 81), 53994#(<= main_x 82), 53995#(<= main_x 83), 53996#(<= main_x 84), 53997#(<= main_x 85), 53998#(<= main_x 86), 53999#(<= main_x 87), 54000#(<= main_x 88), 54001#(<= main_x 89), 54002#(<= main_x 90), 54003#(<= main_x 91), 54004#(<= main_x 92), 54005#(<= main_x 93), 54006#(<= main_x 94), 54007#(<= main_x 95), 54008#(<= main_x 96), 54009#(<= main_x 97), 54010#(<= main_x 98), 54011#(<= main_x 99), 54012#(<= main_x 100), 54013#(<= main_x 101), 54014#(<= main_x 102), 54015#(<= main_x 103)] [2018-07-23 13:55:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:34,442 INFO L450 AbstractCegarLoop]: Interpolant automaton has 145 states [2018-07-23 13:55:34,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2018-07-23 13:55:34,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:55:34,445 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 145 states. [2018-07-23 13:55:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:34,597 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2018-07-23 13:55:34,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-07-23 13:55:34,597 INFO L78 Accepts]: Start accepts. Automaton has 145 states. Word has length 145 [2018-07-23 13:55:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:34,597 INFO L225 Difference]: With dead ends: 149 [2018-07-23 13:55:34,598 INFO L226 Difference]: Without dead ends: 147 [2018-07-23 13:55:34,599 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:55:34,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-07-23 13:55:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-07-23 13:55:34,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-07-23 13:55:34,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 147 transitions. [2018-07-23 13:55:34,602 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 147 transitions. Word has length 145 [2018-07-23 13:55:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:34,602 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 147 transitions. [2018-07-23 13:55:34,602 INFO L472 AbstractCegarLoop]: Interpolant automaton has 145 states. [2018-07-23 13:55:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 147 transitions. [2018-07-23 13:55:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 13:55:34,603 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:34,603 INFO L357 BasicCegarLoop]: trace histogram [143, 1, 1, 1] [2018-07-23 13:55:34,603 INFO L414 AbstractCegarLoop]: === Iteration 144 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:34,603 INFO L82 PathProgramCache]: Analyzing trace with hash 304688710, now seen corresponding path program 143 times [2018-07-23 13:55:34,604 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 10296 backedges. 0 proven. 10296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:35,191 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:35,191 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2018-07-23 13:55:35,191 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:35,191 INFO L185 omatonBuilderFactory]: Interpolants [54784#(<= main_x 135), 54785#(<= main_x 136), 54786#(<= main_x 137), 54787#(<= main_x 138), 54788#(<= main_x 139), 54789#(<= main_x 140), 54790#(<= main_x 141), 54791#(<= main_x 142), 54792#(<= main_x 143), 54647#true, 54648#false, 54649#(<= main_x 0), 54650#(<= main_x 1), 54651#(<= main_x 2), 54652#(<= main_x 3), 54653#(<= main_x 4), 54654#(<= main_x 5), 54655#(<= main_x 6), 54656#(<= main_x 7), 54657#(<= main_x 8), 54658#(<= main_x 9), 54659#(<= main_x 10), 54660#(<= main_x 11), 54661#(<= main_x 12), 54662#(<= main_x 13), 54663#(<= main_x 14), 54664#(<= main_x 15), 54665#(<= main_x 16), 54666#(<= main_x 17), 54667#(<= main_x 18), 54668#(<= main_x 19), 54669#(<= main_x 20), 54670#(<= main_x 21), 54671#(<= main_x 22), 54672#(<= main_x 23), 54673#(<= main_x 24), 54674#(<= main_x 25), 54675#(<= main_x 26), 54676#(<= main_x 27), 54677#(<= main_x 28), 54678#(<= main_x 29), 54679#(<= main_x 30), 54680#(<= main_x 31), 54681#(<= main_x 32), 54682#(<= main_x 33), 54683#(<= main_x 34), 54684#(<= main_x 35), 54685#(<= main_x 36), 54686#(<= main_x 37), 54687#(<= main_x 38), 54688#(<= main_x 39), 54689#(<= main_x 40), 54690#(<= main_x 41), 54691#(<= main_x 42), 54692#(<= main_x 43), 54693#(<= main_x 44), 54694#(<= main_x 45), 54695#(<= main_x 46), 54696#(<= main_x 47), 54697#(<= main_x 48), 54698#(<= main_x 49), 54699#(<= main_x 50), 54700#(<= main_x 51), 54701#(<= main_x 52), 54702#(<= main_x 53), 54703#(<= main_x 54), 54704#(<= main_x 55), 54705#(<= main_x 56), 54706#(<= main_x 57), 54707#(<= main_x 58), 54708#(<= main_x 59), 54709#(<= main_x 60), 54710#(<= main_x 61), 54711#(<= main_x 62), 54712#(<= main_x 63), 54713#(<= main_x 64), 54714#(<= main_x 65), 54715#(<= main_x 66), 54716#(<= main_x 67), 54717#(<= main_x 68), 54718#(<= main_x 69), 54719#(<= main_x 70), 54720#(<= main_x 71), 54721#(<= main_x 72), 54722#(<= main_x 73), 54723#(<= main_x 74), 54724#(<= main_x 75), 54725#(<= main_x 76), 54726#(<= main_x 77), 54727#(<= main_x 78), 54728#(<= main_x 79), 54729#(<= main_x 80), 54730#(<= main_x 81), 54731#(<= main_x 82), 54732#(<= main_x 83), 54733#(<= main_x 84), 54734#(<= main_x 85), 54735#(<= main_x 86), 54736#(<= main_x 87), 54737#(<= main_x 88), 54738#(<= main_x 89), 54739#(<= main_x 90), 54740#(<= main_x 91), 54741#(<= main_x 92), 54742#(<= main_x 93), 54743#(<= main_x 94), 54744#(<= main_x 95), 54745#(<= main_x 96), 54746#(<= main_x 97), 54747#(<= main_x 98), 54748#(<= main_x 99), 54749#(<= main_x 100), 54750#(<= main_x 101), 54751#(<= main_x 102), 54752#(<= main_x 103), 54753#(<= main_x 104), 54754#(<= main_x 105), 54755#(<= main_x 106), 54756#(<= main_x 107), 54757#(<= main_x 108), 54758#(<= main_x 109), 54759#(<= main_x 110), 54760#(<= main_x 111), 54761#(<= main_x 112), 54762#(<= main_x 113), 54763#(<= main_x 114), 54764#(<= main_x 115), 54765#(<= main_x 116), 54766#(<= main_x 117), 54767#(<= main_x 118), 54768#(<= main_x 119), 54769#(<= main_x 120), 54770#(<= main_x 121), 54771#(<= main_x 122), 54772#(<= main_x 123), 54773#(<= main_x 124), 54774#(<= main_x 125), 54775#(<= main_x 126), 54776#(<= main_x 127), 54777#(<= main_x 128), 54778#(<= main_x 129), 54779#(<= main_x 130), 54780#(<= main_x 131), 54781#(<= main_x 132), 54782#(<= main_x 133), 54783#(<= main_x 134)] [2018-07-23 13:55:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 10296 backedges. 0 proven. 10296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:35,192 INFO L450 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-07-23 13:55:35,194 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-07-23 13:55:35,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:55:35,195 INFO L87 Difference]: Start difference. First operand 147 states and 147 transitions. Second operand 146 states. [2018-07-23 13:55:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:35,516 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2018-07-23 13:55:35,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:55:35,516 INFO L78 Accepts]: Start accepts. Automaton has 146 states. Word has length 146 [2018-07-23 13:55:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:35,516 INFO L225 Difference]: With dead ends: 150 [2018-07-23 13:55:35,516 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:55:35,518 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:55:35,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:55:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-07-23 13:55:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-23 13:55:35,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2018-07-23 13:55:35,520 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 146 [2018-07-23 13:55:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:35,520 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2018-07-23 13:55:35,520 INFO L472 AbstractCegarLoop]: Interpolant automaton has 146 states. [2018-07-23 13:55:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2018-07-23 13:55:35,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 13:55:35,521 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:35,521 INFO L357 BasicCegarLoop]: trace histogram [144, 1, 1, 1] [2018-07-23 13:55:35,521 INFO L414 AbstractCegarLoop]: === Iteration 145 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:35,521 INFO L82 PathProgramCache]: Analyzing trace with hash 855411552, now seen corresponding path program 144 times [2018-07-23 13:55:35,521 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,250 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:36,250 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2018-07-23 13:55:36,250 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,251 INFO L185 omatonBuilderFactory]: Interpolants [55389#true, 55390#false, 55391#(<= main_x 0), 55392#(<= main_x 1), 55393#(<= main_x 2), 55394#(<= main_x 3), 55395#(<= main_x 4), 55396#(<= main_x 5), 55397#(<= main_x 6), 55398#(<= main_x 7), 55399#(<= main_x 8), 55400#(<= main_x 9), 55401#(<= main_x 10), 55402#(<= main_x 11), 55403#(<= main_x 12), 55404#(<= main_x 13), 55405#(<= main_x 14), 55406#(<= main_x 15), 55407#(<= main_x 16), 55408#(<= main_x 17), 55409#(<= main_x 18), 55410#(<= main_x 19), 55411#(<= main_x 20), 55412#(<= main_x 21), 55413#(<= main_x 22), 55414#(<= main_x 23), 55415#(<= main_x 24), 55416#(<= main_x 25), 55417#(<= main_x 26), 55418#(<= main_x 27), 55419#(<= main_x 28), 55420#(<= main_x 29), 55421#(<= main_x 30), 55422#(<= main_x 31), 55423#(<= main_x 32), 55424#(<= main_x 33), 55425#(<= main_x 34), 55426#(<= main_x 35), 55427#(<= main_x 36), 55428#(<= main_x 37), 55429#(<= main_x 38), 55430#(<= main_x 39), 55431#(<= main_x 40), 55432#(<= main_x 41), 55433#(<= main_x 42), 55434#(<= main_x 43), 55435#(<= main_x 44), 55436#(<= main_x 45), 55437#(<= main_x 46), 55438#(<= main_x 47), 55439#(<= main_x 48), 55440#(<= main_x 49), 55441#(<= main_x 50), 55442#(<= main_x 51), 55443#(<= main_x 52), 55444#(<= main_x 53), 55445#(<= main_x 54), 55446#(<= main_x 55), 55447#(<= main_x 56), 55448#(<= main_x 57), 55449#(<= main_x 58), 55450#(<= main_x 59), 55451#(<= main_x 60), 55452#(<= main_x 61), 55453#(<= main_x 62), 55454#(<= main_x 63), 55455#(<= main_x 64), 55456#(<= main_x 65), 55457#(<= main_x 66), 55458#(<= main_x 67), 55459#(<= main_x 68), 55460#(<= main_x 69), 55461#(<= main_x 70), 55462#(<= main_x 71), 55463#(<= main_x 72), 55464#(<= main_x 73), 55465#(<= main_x 74), 55466#(<= main_x 75), 55467#(<= main_x 76), 55468#(<= main_x 77), 55469#(<= main_x 78), 55470#(<= main_x 79), 55471#(<= main_x 80), 55472#(<= main_x 81), 55473#(<= main_x 82), 55474#(<= main_x 83), 55475#(<= main_x 84), 55476#(<= main_x 85), 55477#(<= main_x 86), 55478#(<= main_x 87), 55479#(<= main_x 88), 55480#(<= main_x 89), 55481#(<= main_x 90), 55482#(<= main_x 91), 55483#(<= main_x 92), 55484#(<= main_x 93), 55485#(<= main_x 94), 55486#(<= main_x 95), 55487#(<= main_x 96), 55488#(<= main_x 97), 55489#(<= main_x 98), 55490#(<= main_x 99), 55491#(<= main_x 100), 55492#(<= main_x 101), 55493#(<= main_x 102), 55494#(<= main_x 103), 55495#(<= main_x 104), 55496#(<= main_x 105), 55497#(<= main_x 106), 55498#(<= main_x 107), 55499#(<= main_x 108), 55500#(<= main_x 109), 55501#(<= main_x 110), 55502#(<= main_x 111), 55503#(<= main_x 112), 55504#(<= main_x 113), 55505#(<= main_x 114), 55506#(<= main_x 115), 55507#(<= main_x 116), 55508#(<= main_x 117), 55509#(<= main_x 118), 55510#(<= main_x 119), 55511#(<= main_x 120), 55512#(<= main_x 121), 55513#(<= main_x 122), 55514#(<= main_x 123), 55515#(<= main_x 124), 55516#(<= main_x 125), 55517#(<= main_x 126), 55518#(<= main_x 127), 55519#(<= main_x 128), 55520#(<= main_x 129), 55521#(<= main_x 130), 55522#(<= main_x 131), 55523#(<= main_x 132), 55524#(<= main_x 133), 55525#(<= main_x 134), 55526#(<= main_x 135), 55527#(<= main_x 136), 55528#(<= main_x 137), 55529#(<= main_x 138), 55530#(<= main_x 139), 55531#(<= main_x 140), 55532#(<= main_x 141), 55533#(<= main_x 142), 55534#(<= main_x 143), 55535#(<= main_x 144)] [2018-07-23 13:55:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,251 INFO L450 AbstractCegarLoop]: Interpolant automaton has 147 states [2018-07-23 13:55:36,252 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2018-07-23 13:55:36,252 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:55:36,253 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand 147 states. [2018-07-23 13:55:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:36,502 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-07-23 13:55:36,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2018-07-23 13:55:36,502 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 147 [2018-07-23 13:55:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:36,502 INFO L225 Difference]: With dead ends: 151 [2018-07-23 13:55:36,503 INFO L226 Difference]: Without dead ends: 149 [2018-07-23 13:55:36,503 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:55:36,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-07-23 13:55:36,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-07-23 13:55:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-07-23 13:55:36,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2018-07-23 13:55:36,505 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 147 [2018-07-23 13:55:36,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:36,505 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2018-07-23 13:55:36,505 INFO L472 AbstractCegarLoop]: Interpolant automaton has 147 states. [2018-07-23 13:55:36,505 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2018-07-23 13:55:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-23 13:55:36,506 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:36,506 INFO L357 BasicCegarLoop]: trace histogram [145, 1, 1, 1] [2018-07-23 13:55:36,506 INFO L414 AbstractCegarLoop]: === Iteration 146 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:36,506 INFO L82 PathProgramCache]: Analyzing trace with hash 747950470, now seen corresponding path program 145 times [2018-07-23 13:55:36,506 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 10585 backedges. 0 proven. 10585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:37,064 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:37,065 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2018-07-23 13:55:37,065 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:37,065 INFO L185 omatonBuilderFactory]: Interpolants [56136#true, 56137#false, 56138#(<= main_x 0), 56139#(<= main_x 1), 56140#(<= main_x 2), 56141#(<= main_x 3), 56142#(<= main_x 4), 56143#(<= main_x 5), 56144#(<= main_x 6), 56145#(<= main_x 7), 56146#(<= main_x 8), 56147#(<= main_x 9), 56148#(<= main_x 10), 56149#(<= main_x 11), 56150#(<= main_x 12), 56151#(<= main_x 13), 56152#(<= main_x 14), 56153#(<= main_x 15), 56154#(<= main_x 16), 56155#(<= main_x 17), 56156#(<= main_x 18), 56157#(<= main_x 19), 56158#(<= main_x 20), 56159#(<= main_x 21), 56160#(<= main_x 22), 56161#(<= main_x 23), 56162#(<= main_x 24), 56163#(<= main_x 25), 56164#(<= main_x 26), 56165#(<= main_x 27), 56166#(<= main_x 28), 56167#(<= main_x 29), 56168#(<= main_x 30), 56169#(<= main_x 31), 56170#(<= main_x 32), 56171#(<= main_x 33), 56172#(<= main_x 34), 56173#(<= main_x 35), 56174#(<= main_x 36), 56175#(<= main_x 37), 56176#(<= main_x 38), 56177#(<= main_x 39), 56178#(<= main_x 40), 56179#(<= main_x 41), 56180#(<= main_x 42), 56181#(<= main_x 43), 56182#(<= main_x 44), 56183#(<= main_x 45), 56184#(<= main_x 46), 56185#(<= main_x 47), 56186#(<= main_x 48), 56187#(<= main_x 49), 56188#(<= main_x 50), 56189#(<= main_x 51), 56190#(<= main_x 52), 56191#(<= main_x 53), 56192#(<= main_x 54), 56193#(<= main_x 55), 56194#(<= main_x 56), 56195#(<= main_x 57), 56196#(<= main_x 58), 56197#(<= main_x 59), 56198#(<= main_x 60), 56199#(<= main_x 61), 56200#(<= main_x 62), 56201#(<= main_x 63), 56202#(<= main_x 64), 56203#(<= main_x 65), 56204#(<= main_x 66), 56205#(<= main_x 67), 56206#(<= main_x 68), 56207#(<= main_x 69), 56208#(<= main_x 70), 56209#(<= main_x 71), 56210#(<= main_x 72), 56211#(<= main_x 73), 56212#(<= main_x 74), 56213#(<= main_x 75), 56214#(<= main_x 76), 56215#(<= main_x 77), 56216#(<= main_x 78), 56217#(<= main_x 79), 56218#(<= main_x 80), 56219#(<= main_x 81), 56220#(<= main_x 82), 56221#(<= main_x 83), 56222#(<= main_x 84), 56223#(<= main_x 85), 56224#(<= main_x 86), 56225#(<= main_x 87), 56226#(<= main_x 88), 56227#(<= main_x 89), 56228#(<= main_x 90), 56229#(<= main_x 91), 56230#(<= main_x 92), 56231#(<= main_x 93), 56232#(<= main_x 94), 56233#(<= main_x 95), 56234#(<= main_x 96), 56235#(<= main_x 97), 56236#(<= main_x 98), 56237#(<= main_x 99), 56238#(<= main_x 100), 56239#(<= main_x 101), 56240#(<= main_x 102), 56241#(<= main_x 103), 56242#(<= main_x 104), 56243#(<= main_x 105), 56244#(<= main_x 106), 56245#(<= main_x 107), 56246#(<= main_x 108), 56247#(<= main_x 109), 56248#(<= main_x 110), 56249#(<= main_x 111), 56250#(<= main_x 112), 56251#(<= main_x 113), 56252#(<= main_x 114), 56253#(<= main_x 115), 56254#(<= main_x 116), 56255#(<= main_x 117), 56256#(<= main_x 118), 56257#(<= main_x 119), 56258#(<= main_x 120), 56259#(<= main_x 121), 56260#(<= main_x 122), 56261#(<= main_x 123), 56262#(<= main_x 124), 56263#(<= main_x 125), 56264#(<= main_x 126), 56265#(<= main_x 127), 56266#(<= main_x 128), 56267#(<= main_x 129), 56268#(<= main_x 130), 56269#(<= main_x 131), 56270#(<= main_x 132), 56271#(<= main_x 133), 56272#(<= main_x 134), 56273#(<= main_x 135), 56274#(<= main_x 136), 56275#(<= main_x 137), 56276#(<= main_x 138), 56277#(<= main_x 139), 56278#(<= main_x 140), 56279#(<= main_x 141), 56280#(<= main_x 142), 56281#(<= main_x 143), 56282#(<= main_x 144), 56283#(<= main_x 145)] [2018-07-23 13:55:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 10585 backedges. 0 proven. 10585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:37,066 INFO L450 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-07-23 13:55:37,067 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-07-23 13:55:37,068 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:55:37,068 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand 148 states. [2018-07-23 13:55:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:37,410 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-07-23 13:55:37,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:55:37,410 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 148 [2018-07-23 13:55:37,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:37,410 INFO L225 Difference]: With dead ends: 152 [2018-07-23 13:55:37,411 INFO L226 Difference]: Without dead ends: 150 [2018-07-23 13:55:37,412 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:55:37,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-07-23 13:55:37,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-07-23 13:55:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-07-23 13:55:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-07-23 13:55:37,414 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 148 [2018-07-23 13:55:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:37,415 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-07-23 13:55:37,415 INFO L472 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-07-23 13:55:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-07-23 13:55:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-23 13:55:37,415 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:37,415 INFO L357 BasicCegarLoop]: trace histogram [146, 1, 1, 1] [2018-07-23 13:55:37,415 INFO L414 AbstractCegarLoop]: === Iteration 147 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:37,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1711624224, now seen corresponding path program 146 times [2018-07-23 13:55:37,416 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:38,018 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:38,019 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:38,019 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [148] total 148 [2018-07-23 13:55:38,019 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:38,019 INFO L185 omatonBuilderFactory]: Interpolants [56888#true, 56889#false, 56890#(<= main_x 0), 56891#(<= main_x 1), 56892#(<= main_x 2), 56893#(<= main_x 3), 56894#(<= main_x 4), 56895#(<= main_x 5), 56896#(<= main_x 6), 56897#(<= main_x 7), 56898#(<= main_x 8), 56899#(<= main_x 9), 56900#(<= main_x 10), 56901#(<= main_x 11), 56902#(<= main_x 12), 56903#(<= main_x 13), 56904#(<= main_x 14), 56905#(<= main_x 15), 56906#(<= main_x 16), 56907#(<= main_x 17), 56908#(<= main_x 18), 56909#(<= main_x 19), 56910#(<= main_x 20), 56911#(<= main_x 21), 56912#(<= main_x 22), 56913#(<= main_x 23), 56914#(<= main_x 24), 56915#(<= main_x 25), 56916#(<= main_x 26), 56917#(<= main_x 27), 56918#(<= main_x 28), 56919#(<= main_x 29), 56920#(<= main_x 30), 56921#(<= main_x 31), 56922#(<= main_x 32), 56923#(<= main_x 33), 56924#(<= main_x 34), 56925#(<= main_x 35), 56926#(<= main_x 36), 56927#(<= main_x 37), 56928#(<= main_x 38), 56929#(<= main_x 39), 56930#(<= main_x 40), 56931#(<= main_x 41), 56932#(<= main_x 42), 56933#(<= main_x 43), 56934#(<= main_x 44), 56935#(<= main_x 45), 56936#(<= main_x 46), 56937#(<= main_x 47), 56938#(<= main_x 48), 56939#(<= main_x 49), 56940#(<= main_x 50), 56941#(<= main_x 51), 56942#(<= main_x 52), 56943#(<= main_x 53), 56944#(<= main_x 54), 56945#(<= main_x 55), 56946#(<= main_x 56), 56947#(<= main_x 57), 56948#(<= main_x 58), 56949#(<= main_x 59), 56950#(<= main_x 60), 56951#(<= main_x 61), 56952#(<= main_x 62), 56953#(<= main_x 63), 56954#(<= main_x 64), 56955#(<= main_x 65), 56956#(<= main_x 66), 56957#(<= main_x 67), 56958#(<= main_x 68), 56959#(<= main_x 69), 56960#(<= main_x 70), 56961#(<= main_x 71), 56962#(<= main_x 72), 56963#(<= main_x 73), 56964#(<= main_x 74), 56965#(<= main_x 75), 56966#(<= main_x 76), 56967#(<= main_x 77), 56968#(<= main_x 78), 56969#(<= main_x 79), 56970#(<= main_x 80), 56971#(<= main_x 81), 56972#(<= main_x 82), 56973#(<= main_x 83), 56974#(<= main_x 84), 56975#(<= main_x 85), 56976#(<= main_x 86), 56977#(<= main_x 87), 56978#(<= main_x 88), 56979#(<= main_x 89), 56980#(<= main_x 90), 56981#(<= main_x 91), 56982#(<= main_x 92), 56983#(<= main_x 93), 56984#(<= main_x 94), 56985#(<= main_x 95), 56986#(<= main_x 96), 56987#(<= main_x 97), 56988#(<= main_x 98), 56989#(<= main_x 99), 56990#(<= main_x 100), 56991#(<= main_x 101), 56992#(<= main_x 102), 56993#(<= main_x 103), 56994#(<= main_x 104), 56995#(<= main_x 105), 56996#(<= main_x 106), 56997#(<= main_x 107), 56998#(<= main_x 108), 56999#(<= main_x 109), 57000#(<= main_x 110), 57001#(<= main_x 111), 57002#(<= main_x 112), 57003#(<= main_x 113), 57004#(<= main_x 114), 57005#(<= main_x 115), 57006#(<= main_x 116), 57007#(<= main_x 117), 57008#(<= main_x 118), 57009#(<= main_x 119), 57010#(<= main_x 120), 57011#(<= main_x 121), 57012#(<= main_x 122), 57013#(<= main_x 123), 57014#(<= main_x 124), 57015#(<= main_x 125), 57016#(<= main_x 126), 57017#(<= main_x 127), 57018#(<= main_x 128), 57019#(<= main_x 129), 57020#(<= main_x 130), 57021#(<= main_x 131), 57022#(<= main_x 132), 57023#(<= main_x 133), 57024#(<= main_x 134), 57025#(<= main_x 135), 57026#(<= main_x 136), 57027#(<= main_x 137), 57028#(<= main_x 138), 57029#(<= main_x 139), 57030#(<= main_x 140), 57031#(<= main_x 141), 57032#(<= main_x 142), 57033#(<= main_x 143), 57034#(<= main_x 144), 57035#(<= main_x 145), 57036#(<= main_x 146)] [2018-07-23 13:55:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:38,020 INFO L450 AbstractCegarLoop]: Interpolant automaton has 149 states [2018-07-23 13:55:38,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2018-07-23 13:55:38,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:55:38,023 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 149 states. [2018-07-23 13:55:38,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:38,385 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-07-23 13:55:38,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2018-07-23 13:55:38,385 INFO L78 Accepts]: Start accepts. Automaton has 149 states. Word has length 149 [2018-07-23 13:55:38,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:38,385 INFO L225 Difference]: With dead ends: 153 [2018-07-23 13:55:38,386 INFO L226 Difference]: Without dead ends: 151 [2018-07-23 13:55:38,387 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:55:38,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-23 13:55:38,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-07-23 13:55:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-07-23 13:55:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2018-07-23 13:55:38,389 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 149 [2018-07-23 13:55:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:38,390 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2018-07-23 13:55:38,390 INFO L472 AbstractCegarLoop]: Interpolant automaton has 149 states. [2018-07-23 13:55:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2018-07-23 13:55:38,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-23 13:55:38,391 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:38,391 INFO L357 BasicCegarLoop]: trace histogram [147, 1, 1, 1] [2018-07-23 13:55:38,391 INFO L414 AbstractCegarLoop]: === Iteration 148 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:38,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1520739526, now seen corresponding path program 147 times [2018-07-23 13:55:38,391 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 10878 backedges. 0 proven. 10878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:39,071 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:39,071 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2018-07-23 13:55:39,072 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:39,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:39,072 INFO L185 omatonBuilderFactory]: Interpolants [57645#true, 57646#false, 57647#(<= main_x 0), 57648#(<= main_x 1), 57649#(<= main_x 2), 57650#(<= main_x 3), 57651#(<= main_x 4), 57652#(<= main_x 5), 57653#(<= main_x 6), 57654#(<= main_x 7), 57655#(<= main_x 8), 57656#(<= main_x 9), 57657#(<= main_x 10), 57658#(<= main_x 11), 57659#(<= main_x 12), 57660#(<= main_x 13), 57661#(<= main_x 14), 57662#(<= main_x 15), 57663#(<= main_x 16), 57664#(<= main_x 17), 57665#(<= main_x 18), 57666#(<= main_x 19), 57667#(<= main_x 20), 57668#(<= main_x 21), 57669#(<= main_x 22), 57670#(<= main_x 23), 57671#(<= main_x 24), 57672#(<= main_x 25), 57673#(<= main_x 26), 57674#(<= main_x 27), 57675#(<= main_x 28), 57676#(<= main_x 29), 57677#(<= main_x 30), 57678#(<= main_x 31), 57679#(<= main_x 32), 57680#(<= main_x 33), 57681#(<= main_x 34), 57682#(<= main_x 35), 57683#(<= main_x 36), 57684#(<= main_x 37), 57685#(<= main_x 38), 57686#(<= main_x 39), 57687#(<= main_x 40), 57688#(<= main_x 41), 57689#(<= main_x 42), 57690#(<= main_x 43), 57691#(<= main_x 44), 57692#(<= main_x 45), 57693#(<= main_x 46), 57694#(<= main_x 47), 57695#(<= main_x 48), 57696#(<= main_x 49), 57697#(<= main_x 50), 57698#(<= main_x 51), 57699#(<= main_x 52), 57700#(<= main_x 53), 57701#(<= main_x 54), 57702#(<= main_x 55), 57703#(<= main_x 56), 57704#(<= main_x 57), 57705#(<= main_x 58), 57706#(<= main_x 59), 57707#(<= main_x 60), 57708#(<= main_x 61), 57709#(<= main_x 62), 57710#(<= main_x 63), 57711#(<= main_x 64), 57712#(<= main_x 65), 57713#(<= main_x 66), 57714#(<= main_x 67), 57715#(<= main_x 68), 57716#(<= main_x 69), 57717#(<= main_x 70), 57718#(<= main_x 71), 57719#(<= main_x 72), 57720#(<= main_x 73), 57721#(<= main_x 74), 57722#(<= main_x 75), 57723#(<= main_x 76), 57724#(<= main_x 77), 57725#(<= main_x 78), 57726#(<= main_x 79), 57727#(<= main_x 80), 57728#(<= main_x 81), 57729#(<= main_x 82), 57730#(<= main_x 83), 57731#(<= main_x 84), 57732#(<= main_x 85), 57733#(<= main_x 86), 57734#(<= main_x 87), 57735#(<= main_x 88), 57736#(<= main_x 89), 57737#(<= main_x 90), 57738#(<= main_x 91), 57739#(<= main_x 92), 57740#(<= main_x 93), 57741#(<= main_x 94), 57742#(<= main_x 95), 57743#(<= main_x 96), 57744#(<= main_x 97), 57745#(<= main_x 98), 57746#(<= main_x 99), 57747#(<= main_x 100), 57748#(<= main_x 101), 57749#(<= main_x 102), 57750#(<= main_x 103), 57751#(<= main_x 104), 57752#(<= main_x 105), 57753#(<= main_x 106), 57754#(<= main_x 107), 57755#(<= main_x 108), 57756#(<= main_x 109), 57757#(<= main_x 110), 57758#(<= main_x 111), 57759#(<= main_x 112), 57760#(<= main_x 113), 57761#(<= main_x 114), 57762#(<= main_x 115), 57763#(<= main_x 116), 57764#(<= main_x 117), 57765#(<= main_x 118), 57766#(<= main_x 119), 57767#(<= main_x 120), 57768#(<= main_x 121), 57769#(<= main_x 122), 57770#(<= main_x 123), 57771#(<= main_x 124), 57772#(<= main_x 125), 57773#(<= main_x 126), 57774#(<= main_x 127), 57775#(<= main_x 128), 57776#(<= main_x 129), 57777#(<= main_x 130), 57778#(<= main_x 131), 57779#(<= main_x 132), 57780#(<= main_x 133), 57781#(<= main_x 134), 57782#(<= main_x 135), 57783#(<= main_x 136), 57784#(<= main_x 137), 57785#(<= main_x 138), 57786#(<= main_x 139), 57787#(<= main_x 140), 57788#(<= main_x 141), 57789#(<= main_x 142), 57790#(<= main_x 143), 57791#(<= main_x 144), 57792#(<= main_x 145), 57793#(<= main_x 146), 57794#(<= main_x 147)] [2018-07-23 13:55:39,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10878 backedges. 0 proven. 10878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:39,073 INFO L450 AbstractCegarLoop]: Interpolant automaton has 150 states [2018-07-23 13:55:39,075 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2018-07-23 13:55:39,075 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:55:39,075 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand 150 states. [2018-07-23 13:55:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:39,449 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2018-07-23 13:55:39,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:55:39,450 INFO L78 Accepts]: Start accepts. Automaton has 150 states. Word has length 150 [2018-07-23 13:55:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:39,450 INFO L225 Difference]: With dead ends: 154 [2018-07-23 13:55:39,450 INFO L226 Difference]: Without dead ends: 152 [2018-07-23 13:55:39,451 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:55:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-07-23 13:55:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-07-23 13:55:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-07-23 13:55:39,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-07-23 13:55:39,454 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 150 [2018-07-23 13:55:39,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:39,454 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-07-23 13:55:39,454 INFO L472 AbstractCegarLoop]: Interpolant automaton has 150 states. [2018-07-23 13:55:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-07-23 13:55:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 13:55:39,455 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:39,455 INFO L357 BasicCegarLoop]: trace histogram [148, 1, 1, 1] [2018-07-23 13:55:39,455 INFO L414 AbstractCegarLoop]: === Iteration 149 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:39,455 INFO L82 PathProgramCache]: Analyzing trace with hash -101718816, now seen corresponding path program 148 times [2018-07-23 13:55:39,455 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:40,208 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:40,209 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [150] total 150 [2018-07-23 13:55:40,209 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:40,209 INFO L185 omatonBuilderFactory]: Interpolants [58407#true, 58408#false, 58409#(<= main_x 0), 58410#(<= main_x 1), 58411#(<= main_x 2), 58412#(<= main_x 3), 58413#(<= main_x 4), 58414#(<= main_x 5), 58415#(<= main_x 6), 58416#(<= main_x 7), 58417#(<= main_x 8), 58418#(<= main_x 9), 58419#(<= main_x 10), 58420#(<= main_x 11), 58421#(<= main_x 12), 58422#(<= main_x 13), 58423#(<= main_x 14), 58424#(<= main_x 15), 58425#(<= main_x 16), 58426#(<= main_x 17), 58427#(<= main_x 18), 58428#(<= main_x 19), 58429#(<= main_x 20), 58430#(<= main_x 21), 58431#(<= main_x 22), 58432#(<= main_x 23), 58433#(<= main_x 24), 58434#(<= main_x 25), 58435#(<= main_x 26), 58436#(<= main_x 27), 58437#(<= main_x 28), 58438#(<= main_x 29), 58439#(<= main_x 30), 58440#(<= main_x 31), 58441#(<= main_x 32), 58442#(<= main_x 33), 58443#(<= main_x 34), 58444#(<= main_x 35), 58445#(<= main_x 36), 58446#(<= main_x 37), 58447#(<= main_x 38), 58448#(<= main_x 39), 58449#(<= main_x 40), 58450#(<= main_x 41), 58451#(<= main_x 42), 58452#(<= main_x 43), 58453#(<= main_x 44), 58454#(<= main_x 45), 58455#(<= main_x 46), 58456#(<= main_x 47), 58457#(<= main_x 48), 58458#(<= main_x 49), 58459#(<= main_x 50), 58460#(<= main_x 51), 58461#(<= main_x 52), 58462#(<= main_x 53), 58463#(<= main_x 54), 58464#(<= main_x 55), 58465#(<= main_x 56), 58466#(<= main_x 57), 58467#(<= main_x 58), 58468#(<= main_x 59), 58469#(<= main_x 60), 58470#(<= main_x 61), 58471#(<= main_x 62), 58472#(<= main_x 63), 58473#(<= main_x 64), 58474#(<= main_x 65), 58475#(<= main_x 66), 58476#(<= main_x 67), 58477#(<= main_x 68), 58478#(<= main_x 69), 58479#(<= main_x 70), 58480#(<= main_x 71), 58481#(<= main_x 72), 58482#(<= main_x 73), 58483#(<= main_x 74), 58484#(<= main_x 75), 58485#(<= main_x 76), 58486#(<= main_x 77), 58487#(<= main_x 78), 58488#(<= main_x 79), 58489#(<= main_x 80), 58490#(<= main_x 81), 58491#(<= main_x 82), 58492#(<= main_x 83), 58493#(<= main_x 84), 58494#(<= main_x 85), 58495#(<= main_x 86), 58496#(<= main_x 87), 58497#(<= main_x 88), 58498#(<= main_x 89), 58499#(<= main_x 90), 58500#(<= main_x 91), 58501#(<= main_x 92), 58502#(<= main_x 93), 58503#(<= main_x 94), 58504#(<= main_x 95), 58505#(<= main_x 96), 58506#(<= main_x 97), 58507#(<= main_x 98), 58508#(<= main_x 99), 58509#(<= main_x 100), 58510#(<= main_x 101), 58511#(<= main_x 102), 58512#(<= main_x 103), 58513#(<= main_x 104), 58514#(<= main_x 105), 58515#(<= main_x 106), 58516#(<= main_x 107), 58517#(<= main_x 108), 58518#(<= main_x 109), 58519#(<= main_x 110), 58520#(<= main_x 111), 58521#(<= main_x 112), 58522#(<= main_x 113), 58523#(<= main_x 114), 58524#(<= main_x 115), 58525#(<= main_x 116), 58526#(<= main_x 117), 58527#(<= main_x 118), 58528#(<= main_x 119), 58529#(<= main_x 120), 58530#(<= main_x 121), 58531#(<= main_x 122), 58532#(<= main_x 123), 58533#(<= main_x 124), 58534#(<= main_x 125), 58535#(<= main_x 126), 58536#(<= main_x 127), 58537#(<= main_x 128), 58538#(<= main_x 129), 58539#(<= main_x 130), 58540#(<= main_x 131), 58541#(<= main_x 132), 58542#(<= main_x 133), 58543#(<= main_x 134), 58544#(<= main_x 135), 58545#(<= main_x 136), 58546#(<= main_x 137), 58547#(<= main_x 138), 58548#(<= main_x 139), 58549#(<= main_x 140), 58550#(<= main_x 141), 58551#(<= main_x 142), 58552#(<= main_x 143), 58553#(<= main_x 144), 58554#(<= main_x 145), 58555#(<= main_x 146), 58556#(<= main_x 147), 58557#(<= main_x 148)] [2018-07-23 13:55:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:40,210 INFO L450 AbstractCegarLoop]: Interpolant automaton has 151 states [2018-07-23 13:55:40,212 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2018-07-23 13:55:40,212 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:55:40,213 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 151 states. [2018-07-23 13:55:40,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:40,564 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-07-23 13:55:40,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2018-07-23 13:55:40,564 INFO L78 Accepts]: Start accepts. Automaton has 151 states. Word has length 151 [2018-07-23 13:55:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:40,565 INFO L225 Difference]: With dead ends: 155 [2018-07-23 13:55:40,565 INFO L226 Difference]: Without dead ends: 153 [2018-07-23 13:55:40,566 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:55:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-07-23 13:55:40,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-07-23 13:55:40,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-07-23 13:55:40,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2018-07-23 13:55:40,569 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 151 [2018-07-23 13:55:40,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:40,569 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2018-07-23 13:55:40,569 INFO L472 AbstractCegarLoop]: Interpolant automaton has 151 states. [2018-07-23 13:55:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2018-07-23 13:55:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-23 13:55:40,570 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:40,570 INFO L357 BasicCegarLoop]: trace histogram [149, 1, 1, 1] [2018-07-23 13:55:40,570 INFO L414 AbstractCegarLoop]: === Iteration 150 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:40,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1141680134, now seen corresponding path program 149 times [2018-07-23 13:55:40,570 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 11175 backedges. 0 proven. 11175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:41,183 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:41,183 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [151] total 151 [2018-07-23 13:55:41,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:41,184 INFO L185 omatonBuilderFactory]: Interpolants [59174#true, 59175#false, 59176#(<= main_x 0), 59177#(<= main_x 1), 59178#(<= main_x 2), 59179#(<= main_x 3), 59180#(<= main_x 4), 59181#(<= main_x 5), 59182#(<= main_x 6), 59183#(<= main_x 7), 59184#(<= main_x 8), 59185#(<= main_x 9), 59186#(<= main_x 10), 59187#(<= main_x 11), 59188#(<= main_x 12), 59189#(<= main_x 13), 59190#(<= main_x 14), 59191#(<= main_x 15), 59192#(<= main_x 16), 59193#(<= main_x 17), 59194#(<= main_x 18), 59195#(<= main_x 19), 59196#(<= main_x 20), 59197#(<= main_x 21), 59198#(<= main_x 22), 59199#(<= main_x 23), 59200#(<= main_x 24), 59201#(<= main_x 25), 59202#(<= main_x 26), 59203#(<= main_x 27), 59204#(<= main_x 28), 59205#(<= main_x 29), 59206#(<= main_x 30), 59207#(<= main_x 31), 59208#(<= main_x 32), 59209#(<= main_x 33), 59210#(<= main_x 34), 59211#(<= main_x 35), 59212#(<= main_x 36), 59213#(<= main_x 37), 59214#(<= main_x 38), 59215#(<= main_x 39), 59216#(<= main_x 40), 59217#(<= main_x 41), 59218#(<= main_x 42), 59219#(<= main_x 43), 59220#(<= main_x 44), 59221#(<= main_x 45), 59222#(<= main_x 46), 59223#(<= main_x 47), 59224#(<= main_x 48), 59225#(<= main_x 49), 59226#(<= main_x 50), 59227#(<= main_x 51), 59228#(<= main_x 52), 59229#(<= main_x 53), 59230#(<= main_x 54), 59231#(<= main_x 55), 59232#(<= main_x 56), 59233#(<= main_x 57), 59234#(<= main_x 58), 59235#(<= main_x 59), 59236#(<= main_x 60), 59237#(<= main_x 61), 59238#(<= main_x 62), 59239#(<= main_x 63), 59240#(<= main_x 64), 59241#(<= main_x 65), 59242#(<= main_x 66), 59243#(<= main_x 67), 59244#(<= main_x 68), 59245#(<= main_x 69), 59246#(<= main_x 70), 59247#(<= main_x 71), 59248#(<= main_x 72), 59249#(<= main_x 73), 59250#(<= main_x 74), 59251#(<= main_x 75), 59252#(<= main_x 76), 59253#(<= main_x 77), 59254#(<= main_x 78), 59255#(<= main_x 79), 59256#(<= main_x 80), 59257#(<= main_x 81), 59258#(<= main_x 82), 59259#(<= main_x 83), 59260#(<= main_x 84), 59261#(<= main_x 85), 59262#(<= main_x 86), 59263#(<= main_x 87), 59264#(<= main_x 88), 59265#(<= main_x 89), 59266#(<= main_x 90), 59267#(<= main_x 91), 59268#(<= main_x 92), 59269#(<= main_x 93), 59270#(<= main_x 94), 59271#(<= main_x 95), 59272#(<= main_x 96), 59273#(<= main_x 97), 59274#(<= main_x 98), 59275#(<= main_x 99), 59276#(<= main_x 100), 59277#(<= main_x 101), 59278#(<= main_x 102), 59279#(<= main_x 103), 59280#(<= main_x 104), 59281#(<= main_x 105), 59282#(<= main_x 106), 59283#(<= main_x 107), 59284#(<= main_x 108), 59285#(<= main_x 109), 59286#(<= main_x 110), 59287#(<= main_x 111), 59288#(<= main_x 112), 59289#(<= main_x 113), 59290#(<= main_x 114), 59291#(<= main_x 115), 59292#(<= main_x 116), 59293#(<= main_x 117), 59294#(<= main_x 118), 59295#(<= main_x 119), 59296#(<= main_x 120), 59297#(<= main_x 121), 59298#(<= main_x 122), 59299#(<= main_x 123), 59300#(<= main_x 124), 59301#(<= main_x 125), 59302#(<= main_x 126), 59303#(<= main_x 127), 59304#(<= main_x 128), 59305#(<= main_x 129), 59306#(<= main_x 130), 59307#(<= main_x 131), 59308#(<= main_x 132), 59309#(<= main_x 133), 59310#(<= main_x 134), 59311#(<= main_x 135), 59312#(<= main_x 136), 59313#(<= main_x 137), 59314#(<= main_x 138), 59315#(<= main_x 139), 59316#(<= main_x 140), 59317#(<= main_x 141), 59318#(<= main_x 142), 59319#(<= main_x 143), 59320#(<= main_x 144), 59321#(<= main_x 145), 59322#(<= main_x 146), 59323#(<= main_x 147), 59324#(<= main_x 148), 59325#(<= main_x 149)] [2018-07-23 13:55:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 11175 backedges. 0 proven. 11175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:41,184 INFO L450 AbstractCegarLoop]: Interpolant automaton has 152 states [2018-07-23 13:55:41,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2018-07-23 13:55:41,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:55:41,187 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 152 states. [2018-07-23 13:55:41,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:41,594 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2018-07-23 13:55:41,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-07-23 13:55:41,594 INFO L78 Accepts]: Start accepts. Automaton has 152 states. Word has length 152 [2018-07-23 13:55:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:41,595 INFO L225 Difference]: With dead ends: 156 [2018-07-23 13:55:41,595 INFO L226 Difference]: Without dead ends: 154 [2018-07-23 13:55:41,596 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:55:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-23 13:55:41,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-07-23 13:55:41,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-07-23 13:55:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-07-23 13:55:41,598 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 152 [2018-07-23 13:55:41,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:41,599 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-07-23 13:55:41,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 152 states. [2018-07-23 13:55:41,599 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-07-23 13:55:41,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 13:55:41,599 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:41,599 INFO L357 BasicCegarLoop]: trace histogram [150, 1, 1, 1] [2018-07-23 13:55:41,599 INFO L414 AbstractCegarLoop]: === Iteration 151 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:41,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1032341920, now seen corresponding path program 150 times [2018-07-23 13:55:41,600 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:42,222 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:42,222 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [152] total 152 [2018-07-23 13:55:42,223 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:42,223 INFO L185 omatonBuilderFactory]: Interpolants [59946#true, 59947#false, 59948#(<= main_x 0), 59949#(<= main_x 1), 59950#(<= main_x 2), 59951#(<= main_x 3), 59952#(<= main_x 4), 59953#(<= main_x 5), 59954#(<= main_x 6), 59955#(<= main_x 7), 59956#(<= main_x 8), 59957#(<= main_x 9), 59958#(<= main_x 10), 59959#(<= main_x 11), 59960#(<= main_x 12), 59961#(<= main_x 13), 59962#(<= main_x 14), 59963#(<= main_x 15), 59964#(<= main_x 16), 59965#(<= main_x 17), 59966#(<= main_x 18), 59967#(<= main_x 19), 59968#(<= main_x 20), 59969#(<= main_x 21), 59970#(<= main_x 22), 59971#(<= main_x 23), 59972#(<= main_x 24), 59973#(<= main_x 25), 59974#(<= main_x 26), 59975#(<= main_x 27), 59976#(<= main_x 28), 59977#(<= main_x 29), 59978#(<= main_x 30), 59979#(<= main_x 31), 59980#(<= main_x 32), 59981#(<= main_x 33), 59982#(<= main_x 34), 59983#(<= main_x 35), 59984#(<= main_x 36), 59985#(<= main_x 37), 59986#(<= main_x 38), 59987#(<= main_x 39), 59988#(<= main_x 40), 59989#(<= main_x 41), 59990#(<= main_x 42), 59991#(<= main_x 43), 59992#(<= main_x 44), 59993#(<= main_x 45), 59994#(<= main_x 46), 59995#(<= main_x 47), 59996#(<= main_x 48), 59997#(<= main_x 49), 59998#(<= main_x 50), 59999#(<= main_x 51), 60000#(<= main_x 52), 60001#(<= main_x 53), 60002#(<= main_x 54), 60003#(<= main_x 55), 60004#(<= main_x 56), 60005#(<= main_x 57), 60006#(<= main_x 58), 60007#(<= main_x 59), 60008#(<= main_x 60), 60009#(<= main_x 61), 60010#(<= main_x 62), 60011#(<= main_x 63), 60012#(<= main_x 64), 60013#(<= main_x 65), 60014#(<= main_x 66), 60015#(<= main_x 67), 60016#(<= main_x 68), 60017#(<= main_x 69), 60018#(<= main_x 70), 60019#(<= main_x 71), 60020#(<= main_x 72), 60021#(<= main_x 73), 60022#(<= main_x 74), 60023#(<= main_x 75), 60024#(<= main_x 76), 60025#(<= main_x 77), 60026#(<= main_x 78), 60027#(<= main_x 79), 60028#(<= main_x 80), 60029#(<= main_x 81), 60030#(<= main_x 82), 60031#(<= main_x 83), 60032#(<= main_x 84), 60033#(<= main_x 85), 60034#(<= main_x 86), 60035#(<= main_x 87), 60036#(<= main_x 88), 60037#(<= main_x 89), 60038#(<= main_x 90), 60039#(<= main_x 91), 60040#(<= main_x 92), 60041#(<= main_x 93), 60042#(<= main_x 94), 60043#(<= main_x 95), 60044#(<= main_x 96), 60045#(<= main_x 97), 60046#(<= main_x 98), 60047#(<= main_x 99), 60048#(<= main_x 100), 60049#(<= main_x 101), 60050#(<= main_x 102), 60051#(<= main_x 103), 60052#(<= main_x 104), 60053#(<= main_x 105), 60054#(<= main_x 106), 60055#(<= main_x 107), 60056#(<= main_x 108), 60057#(<= main_x 109), 60058#(<= main_x 110), 60059#(<= main_x 111), 60060#(<= main_x 112), 60061#(<= main_x 113), 60062#(<= main_x 114), 60063#(<= main_x 115), 60064#(<= main_x 116), 60065#(<= main_x 117), 60066#(<= main_x 118), 60067#(<= main_x 119), 60068#(<= main_x 120), 60069#(<= main_x 121), 60070#(<= main_x 122), 60071#(<= main_x 123), 60072#(<= main_x 124), 60073#(<= main_x 125), 60074#(<= main_x 126), 60075#(<= main_x 127), 60076#(<= main_x 128), 60077#(<= main_x 129), 60078#(<= main_x 130), 60079#(<= main_x 131), 60080#(<= main_x 132), 60081#(<= main_x 133), 60082#(<= main_x 134), 60083#(<= main_x 135), 60084#(<= main_x 136), 60085#(<= main_x 137), 60086#(<= main_x 138), 60087#(<= main_x 139), 60088#(<= main_x 140), 60089#(<= main_x 141), 60090#(<= main_x 142), 60091#(<= main_x 143), 60092#(<= main_x 144), 60093#(<= main_x 145), 60094#(<= main_x 146), 60095#(<= main_x 147), 60096#(<= main_x 148), 60097#(<= main_x 149), 60098#(<= main_x 150)] [2018-07-23 13:55:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:42,224 INFO L450 AbstractCegarLoop]: Interpolant automaton has 153 states [2018-07-23 13:55:42,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2018-07-23 13:55:42,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:55:42,227 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 153 states. [2018-07-23 13:55:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:42,583 INFO L93 Difference]: Finished difference Result 157 states and 157 transitions. [2018-07-23 13:55:42,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2018-07-23 13:55:42,583 INFO L78 Accepts]: Start accepts. Automaton has 153 states. Word has length 153 [2018-07-23 13:55:42,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:42,584 INFO L225 Difference]: With dead ends: 157 [2018-07-23 13:55:42,584 INFO L226 Difference]: Without dead ends: 155 [2018-07-23 13:55:42,585 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:55:42,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-07-23 13:55:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-07-23 13:55:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-07-23 13:55:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-07-23 13:55:42,587 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 153 [2018-07-23 13:55:42,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:42,587 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-07-23 13:55:42,587 INFO L472 AbstractCegarLoop]: Interpolant automaton has 153 states. [2018-07-23 13:55:42,587 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-07-23 13:55:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-23 13:55:42,587 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:42,588 INFO L357 BasicCegarLoop]: trace histogram [151, 1, 1, 1] [2018-07-23 13:55:42,588 INFO L414 AbstractCegarLoop]: === Iteration 152 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:42,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1937824582, now seen corresponding path program 151 times [2018-07-23 13:55:42,588 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:43,187 INFO L134 CoverageAnalysis]: Checked inductivity of 11476 backedges. 0 proven. 11476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:43,188 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:43,188 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [153] total 153 [2018-07-23 13:55:43,188 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:43,189 INFO L185 omatonBuilderFactory]: Interpolants [60723#true, 60724#false, 60725#(<= main_x 0), 60726#(<= main_x 1), 60727#(<= main_x 2), 60728#(<= main_x 3), 60729#(<= main_x 4), 60730#(<= main_x 5), 60731#(<= main_x 6), 60732#(<= main_x 7), 60733#(<= main_x 8), 60734#(<= main_x 9), 60735#(<= main_x 10), 60736#(<= main_x 11), 60737#(<= main_x 12), 60738#(<= main_x 13), 60739#(<= main_x 14), 60740#(<= main_x 15), 60741#(<= main_x 16), 60742#(<= main_x 17), 60743#(<= main_x 18), 60744#(<= main_x 19), 60745#(<= main_x 20), 60746#(<= main_x 21), 60747#(<= main_x 22), 60748#(<= main_x 23), 60749#(<= main_x 24), 60750#(<= main_x 25), 60751#(<= main_x 26), 60752#(<= main_x 27), 60753#(<= main_x 28), 60754#(<= main_x 29), 60755#(<= main_x 30), 60756#(<= main_x 31), 60757#(<= main_x 32), 60758#(<= main_x 33), 60759#(<= main_x 34), 60760#(<= main_x 35), 60761#(<= main_x 36), 60762#(<= main_x 37), 60763#(<= main_x 38), 60764#(<= main_x 39), 60765#(<= main_x 40), 60766#(<= main_x 41), 60767#(<= main_x 42), 60768#(<= main_x 43), 60769#(<= main_x 44), 60770#(<= main_x 45), 60771#(<= main_x 46), 60772#(<= main_x 47), 60773#(<= main_x 48), 60774#(<= main_x 49), 60775#(<= main_x 50), 60776#(<= main_x 51), 60777#(<= main_x 52), 60778#(<= main_x 53), 60779#(<= main_x 54), 60780#(<= main_x 55), 60781#(<= main_x 56), 60782#(<= main_x 57), 60783#(<= main_x 58), 60784#(<= main_x 59), 60785#(<= main_x 60), 60786#(<= main_x 61), 60787#(<= main_x 62), 60788#(<= main_x 63), 60789#(<= main_x 64), 60790#(<= main_x 65), 60791#(<= main_x 66), 60792#(<= main_x 67), 60793#(<= main_x 68), 60794#(<= main_x 69), 60795#(<= main_x 70), 60796#(<= main_x 71), 60797#(<= main_x 72), 60798#(<= main_x 73), 60799#(<= main_x 74), 60800#(<= main_x 75), 60801#(<= main_x 76), 60802#(<= main_x 77), 60803#(<= main_x 78), 60804#(<= main_x 79), 60805#(<= main_x 80), 60806#(<= main_x 81), 60807#(<= main_x 82), 60808#(<= main_x 83), 60809#(<= main_x 84), 60810#(<= main_x 85), 60811#(<= main_x 86), 60812#(<= main_x 87), 60813#(<= main_x 88), 60814#(<= main_x 89), 60815#(<= main_x 90), 60816#(<= main_x 91), 60817#(<= main_x 92), 60818#(<= main_x 93), 60819#(<= main_x 94), 60820#(<= main_x 95), 60821#(<= main_x 96), 60822#(<= main_x 97), 60823#(<= main_x 98), 60824#(<= main_x 99), 60825#(<= main_x 100), 60826#(<= main_x 101), 60827#(<= main_x 102), 60828#(<= main_x 103), 60829#(<= main_x 104), 60830#(<= main_x 105), 60831#(<= main_x 106), 60832#(<= main_x 107), 60833#(<= main_x 108), 60834#(<= main_x 109), 60835#(<= main_x 110), 60836#(<= main_x 111), 60837#(<= main_x 112), 60838#(<= main_x 113), 60839#(<= main_x 114), 60840#(<= main_x 115), 60841#(<= main_x 116), 60842#(<= main_x 117), 60843#(<= main_x 118), 60844#(<= main_x 119), 60845#(<= main_x 120), 60846#(<= main_x 121), 60847#(<= main_x 122), 60848#(<= main_x 123), 60849#(<= main_x 124), 60850#(<= main_x 125), 60851#(<= main_x 126), 60852#(<= main_x 127), 60853#(<= main_x 128), 60854#(<= main_x 129), 60855#(<= main_x 130), 60856#(<= main_x 131), 60857#(<= main_x 132), 60858#(<= main_x 133), 60859#(<= main_x 134), 60860#(<= main_x 135), 60861#(<= main_x 136), 60862#(<= main_x 137), 60863#(<= main_x 138), 60864#(<= main_x 139), 60865#(<= main_x 140), 60866#(<= main_x 141), 60867#(<= main_x 142), 60868#(<= main_x 143), 60869#(<= main_x 144), 60870#(<= main_x 145), 60871#(<= main_x 146), 60872#(<= main_x 147), 60873#(<= main_x 148), 60874#(<= main_x 149), 60875#(<= main_x 150), 60876#(<= main_x 151)] [2018-07-23 13:55:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 11476 backedges. 0 proven. 11476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:43,189 INFO L450 AbstractCegarLoop]: Interpolant automaton has 154 states [2018-07-23 13:55:43,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2018-07-23 13:55:43,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:55:43,192 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 154 states. [2018-07-23 13:55:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:43,613 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2018-07-23 13:55:43,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2018-07-23 13:55:43,613 INFO L78 Accepts]: Start accepts. Automaton has 154 states. Word has length 154 [2018-07-23 13:55:43,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:43,614 INFO L225 Difference]: With dead ends: 158 [2018-07-23 13:55:43,614 INFO L226 Difference]: Without dead ends: 156 [2018-07-23 13:55:43,615 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:55:43,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-07-23 13:55:43,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-07-23 13:55:43,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-07-23 13:55:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2018-07-23 13:55:43,618 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 154 [2018-07-23 13:55:43,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:43,618 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2018-07-23 13:55:43,618 INFO L472 AbstractCegarLoop]: Interpolant automaton has 154 states. [2018-07-23 13:55:43,618 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2018-07-23 13:55:43,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 13:55:43,618 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:43,618 INFO L357 BasicCegarLoop]: trace histogram [152, 1, 1, 1] [2018-07-23 13:55:43,619 INFO L414 AbstractCegarLoop]: === Iteration 153 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:43,619 INFO L82 PathProgramCache]: Analyzing trace with hash -56983968, now seen corresponding path program 152 times [2018-07-23 13:55:43,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:44,308 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:44,309 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:44,309 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [154] total 154 [2018-07-23 13:55:44,309 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:44,310 INFO L185 omatonBuilderFactory]: Interpolants [61505#true, 61506#false, 61507#(<= main_x 0), 61508#(<= main_x 1), 61509#(<= main_x 2), 61510#(<= main_x 3), 61511#(<= main_x 4), 61512#(<= main_x 5), 61513#(<= main_x 6), 61514#(<= main_x 7), 61515#(<= main_x 8), 61516#(<= main_x 9), 61517#(<= main_x 10), 61518#(<= main_x 11), 61519#(<= main_x 12), 61520#(<= main_x 13), 61521#(<= main_x 14), 61522#(<= main_x 15), 61523#(<= main_x 16), 61524#(<= main_x 17), 61525#(<= main_x 18), 61526#(<= main_x 19), 61527#(<= main_x 20), 61528#(<= main_x 21), 61529#(<= main_x 22), 61530#(<= main_x 23), 61531#(<= main_x 24), 61532#(<= main_x 25), 61533#(<= main_x 26), 61534#(<= main_x 27), 61535#(<= main_x 28), 61536#(<= main_x 29), 61537#(<= main_x 30), 61538#(<= main_x 31), 61539#(<= main_x 32), 61540#(<= main_x 33), 61541#(<= main_x 34), 61542#(<= main_x 35), 61543#(<= main_x 36), 61544#(<= main_x 37), 61545#(<= main_x 38), 61546#(<= main_x 39), 61547#(<= main_x 40), 61548#(<= main_x 41), 61549#(<= main_x 42), 61550#(<= main_x 43), 61551#(<= main_x 44), 61552#(<= main_x 45), 61553#(<= main_x 46), 61554#(<= main_x 47), 61555#(<= main_x 48), 61556#(<= main_x 49), 61557#(<= main_x 50), 61558#(<= main_x 51), 61559#(<= main_x 52), 61560#(<= main_x 53), 61561#(<= main_x 54), 61562#(<= main_x 55), 61563#(<= main_x 56), 61564#(<= main_x 57), 61565#(<= main_x 58), 61566#(<= main_x 59), 61567#(<= main_x 60), 61568#(<= main_x 61), 61569#(<= main_x 62), 61570#(<= main_x 63), 61571#(<= main_x 64), 61572#(<= main_x 65), 61573#(<= main_x 66), 61574#(<= main_x 67), 61575#(<= main_x 68), 61576#(<= main_x 69), 61577#(<= main_x 70), 61578#(<= main_x 71), 61579#(<= main_x 72), 61580#(<= main_x 73), 61581#(<= main_x 74), 61582#(<= main_x 75), 61583#(<= main_x 76), 61584#(<= main_x 77), 61585#(<= main_x 78), 61586#(<= main_x 79), 61587#(<= main_x 80), 61588#(<= main_x 81), 61589#(<= main_x 82), 61590#(<= main_x 83), 61591#(<= main_x 84), 61592#(<= main_x 85), 61593#(<= main_x 86), 61594#(<= main_x 87), 61595#(<= main_x 88), 61596#(<= main_x 89), 61597#(<= main_x 90), 61598#(<= main_x 91), 61599#(<= main_x 92), 61600#(<= main_x 93), 61601#(<= main_x 94), 61602#(<= main_x 95), 61603#(<= main_x 96), 61604#(<= main_x 97), 61605#(<= main_x 98), 61606#(<= main_x 99), 61607#(<= main_x 100), 61608#(<= main_x 101), 61609#(<= main_x 102), 61610#(<= main_x 103), 61611#(<= main_x 104), 61612#(<= main_x 105), 61613#(<= main_x 106), 61614#(<= main_x 107), 61615#(<= main_x 108), 61616#(<= main_x 109), 61617#(<= main_x 110), 61618#(<= main_x 111), 61619#(<= main_x 112), 61620#(<= main_x 113), 61621#(<= main_x 114), 61622#(<= main_x 115), 61623#(<= main_x 116), 61624#(<= main_x 117), 61625#(<= main_x 118), 61626#(<= main_x 119), 61627#(<= main_x 120), 61628#(<= main_x 121), 61629#(<= main_x 122), 61630#(<= main_x 123), 61631#(<= main_x 124), 61632#(<= main_x 125), 61633#(<= main_x 126), 61634#(<= main_x 127), 61635#(<= main_x 128), 61636#(<= main_x 129), 61637#(<= main_x 130), 61638#(<= main_x 131), 61639#(<= main_x 132), 61640#(<= main_x 133), 61641#(<= main_x 134), 61642#(<= main_x 135), 61643#(<= main_x 136), 61644#(<= main_x 137), 61645#(<= main_x 138), 61646#(<= main_x 139), 61647#(<= main_x 140), 61648#(<= main_x 141), 61649#(<= main_x 142), 61650#(<= main_x 143), 61651#(<= main_x 144), 61652#(<= main_x 145), 61653#(<= main_x 146), 61654#(<= main_x 147), 61655#(<= main_x 148), 61656#(<= main_x 149), 61657#(<= main_x 150), 61658#(<= main_x 151), 61659#(<= main_x 152)] [2018-07-23 13:55:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:44,310 INFO L450 AbstractCegarLoop]: Interpolant automaton has 155 states [2018-07-23 13:55:44,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2018-07-23 13:55:44,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:55:44,314 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand 155 states. [2018-07-23 13:55:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:44,732 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-07-23 13:55:44,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2018-07-23 13:55:44,733 INFO L78 Accepts]: Start accepts. Automaton has 155 states. Word has length 155 [2018-07-23 13:55:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:44,733 INFO L225 Difference]: With dead ends: 159 [2018-07-23 13:55:44,733 INFO L226 Difference]: Without dead ends: 157 [2018-07-23 13:55:44,734 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:55:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-07-23 13:55:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-07-23 13:55:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-07-23 13:55:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 157 transitions. [2018-07-23 13:55:44,737 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 157 transitions. Word has length 155 [2018-07-23 13:55:44,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:44,738 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 157 transitions. [2018-07-23 13:55:44,738 INFO L472 AbstractCegarLoop]: Interpolant automaton has 155 states. [2018-07-23 13:55:44,738 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 157 transitions. [2018-07-23 13:55:44,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-23 13:55:44,738 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:44,739 INFO L357 BasicCegarLoop]: trace histogram [153, 1, 1, 1] [2018-07-23 13:55:44,739 INFO L414 AbstractCegarLoop]: === Iteration 154 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:44,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1766506874, now seen corresponding path program 153 times [2018-07-23 13:55:44,739 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 11781 backedges. 0 proven. 11781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:45,514 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:45,514 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [155] total 155 [2018-07-23 13:55:45,514 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:45,514 INFO L185 omatonBuilderFactory]: Interpolants [62292#true, 62293#false, 62294#(<= main_x 0), 62295#(<= main_x 1), 62296#(<= main_x 2), 62297#(<= main_x 3), 62298#(<= main_x 4), 62299#(<= main_x 5), 62300#(<= main_x 6), 62301#(<= main_x 7), 62302#(<= main_x 8), 62303#(<= main_x 9), 62304#(<= main_x 10), 62305#(<= main_x 11), 62306#(<= main_x 12), 62307#(<= main_x 13), 62308#(<= main_x 14), 62309#(<= main_x 15), 62310#(<= main_x 16), 62311#(<= main_x 17), 62312#(<= main_x 18), 62313#(<= main_x 19), 62314#(<= main_x 20), 62315#(<= main_x 21), 62316#(<= main_x 22), 62317#(<= main_x 23), 62318#(<= main_x 24), 62319#(<= main_x 25), 62320#(<= main_x 26), 62321#(<= main_x 27), 62322#(<= main_x 28), 62323#(<= main_x 29), 62324#(<= main_x 30), 62325#(<= main_x 31), 62326#(<= main_x 32), 62327#(<= main_x 33), 62328#(<= main_x 34), 62329#(<= main_x 35), 62330#(<= main_x 36), 62331#(<= main_x 37), 62332#(<= main_x 38), 62333#(<= main_x 39), 62334#(<= main_x 40), 62335#(<= main_x 41), 62336#(<= main_x 42), 62337#(<= main_x 43), 62338#(<= main_x 44), 62339#(<= main_x 45), 62340#(<= main_x 46), 62341#(<= main_x 47), 62342#(<= main_x 48), 62343#(<= main_x 49), 62344#(<= main_x 50), 62345#(<= main_x 51), 62346#(<= main_x 52), 62347#(<= main_x 53), 62348#(<= main_x 54), 62349#(<= main_x 55), 62350#(<= main_x 56), 62351#(<= main_x 57), 62352#(<= main_x 58), 62353#(<= main_x 59), 62354#(<= main_x 60), 62355#(<= main_x 61), 62356#(<= main_x 62), 62357#(<= main_x 63), 62358#(<= main_x 64), 62359#(<= main_x 65), 62360#(<= main_x 66), 62361#(<= main_x 67), 62362#(<= main_x 68), 62363#(<= main_x 69), 62364#(<= main_x 70), 62365#(<= main_x 71), 62366#(<= main_x 72), 62367#(<= main_x 73), 62368#(<= main_x 74), 62369#(<= main_x 75), 62370#(<= main_x 76), 62371#(<= main_x 77), 62372#(<= main_x 78), 62373#(<= main_x 79), 62374#(<= main_x 80), 62375#(<= main_x 81), 62376#(<= main_x 82), 62377#(<= main_x 83), 62378#(<= main_x 84), 62379#(<= main_x 85), 62380#(<= main_x 86), 62381#(<= main_x 87), 62382#(<= main_x 88), 62383#(<= main_x 89), 62384#(<= main_x 90), 62385#(<= main_x 91), 62386#(<= main_x 92), 62387#(<= main_x 93), 62388#(<= main_x 94), 62389#(<= main_x 95), 62390#(<= main_x 96), 62391#(<= main_x 97), 62392#(<= main_x 98), 62393#(<= main_x 99), 62394#(<= main_x 100), 62395#(<= main_x 101), 62396#(<= main_x 102), 62397#(<= main_x 103), 62398#(<= main_x 104), 62399#(<= main_x 105), 62400#(<= main_x 106), 62401#(<= main_x 107), 62402#(<= main_x 108), 62403#(<= main_x 109), 62404#(<= main_x 110), 62405#(<= main_x 111), 62406#(<= main_x 112), 62407#(<= main_x 113), 62408#(<= main_x 114), 62409#(<= main_x 115), 62410#(<= main_x 116), 62411#(<= main_x 117), 62412#(<= main_x 118), 62413#(<= main_x 119), 62414#(<= main_x 120), 62415#(<= main_x 121), 62416#(<= main_x 122), 62417#(<= main_x 123), 62418#(<= main_x 124), 62419#(<= main_x 125), 62420#(<= main_x 126), 62421#(<= main_x 127), 62422#(<= main_x 128), 62423#(<= main_x 129), 62424#(<= main_x 130), 62425#(<= main_x 131), 62426#(<= main_x 132), 62427#(<= main_x 133), 62428#(<= main_x 134), 62429#(<= main_x 135), 62430#(<= main_x 136), 62431#(<= main_x 137), 62432#(<= main_x 138), 62433#(<= main_x 139), 62434#(<= main_x 140), 62435#(<= main_x 141), 62436#(<= main_x 142), 62437#(<= main_x 143), 62438#(<= main_x 144), 62439#(<= main_x 145), 62440#(<= main_x 146), 62441#(<= main_x 147), 62442#(<= main_x 148), 62443#(<= main_x 149), 62444#(<= main_x 150), 62445#(<= main_x 151), 62446#(<= main_x 152), 62447#(<= main_x 153)] [2018-07-23 13:55:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 11781 backedges. 0 proven. 11781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:45,515 INFO L450 AbstractCegarLoop]: Interpolant automaton has 156 states [2018-07-23 13:55:45,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2018-07-23 13:55:45,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:55:45,517 INFO L87 Difference]: Start difference. First operand 157 states and 157 transitions. Second operand 156 states. [2018-07-23 13:55:45,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:45,841 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2018-07-23 13:55:45,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2018-07-23 13:55:45,841 INFO L78 Accepts]: Start accepts. Automaton has 156 states. Word has length 156 [2018-07-23 13:55:45,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:45,842 INFO L225 Difference]: With dead ends: 160 [2018-07-23 13:55:45,842 INFO L226 Difference]: Without dead ends: 158 [2018-07-23 13:55:45,843 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:55:45,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-07-23 13:55:45,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-07-23 13:55:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-07-23 13:55:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 158 transitions. [2018-07-23 13:55:45,845 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 158 transitions. Word has length 156 [2018-07-23 13:55:45,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:45,846 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 158 transitions. [2018-07-23 13:55:45,846 INFO L472 AbstractCegarLoop]: Interpolant automaton has 156 states. [2018-07-23 13:55:45,846 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 158 transitions. [2018-07-23 13:55:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-07-23 13:55:45,846 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:45,847 INFO L357 BasicCegarLoop]: trace histogram [154, 1, 1, 1] [2018-07-23 13:55:45,847 INFO L414 AbstractCegarLoop]: === Iteration 155 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:45,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1072857888, now seen corresponding path program 154 times [2018-07-23 13:55:45,847 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:46,499 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:46,500 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [156] total 156 [2018-07-23 13:55:46,500 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:46,500 INFO L185 omatonBuilderFactory]: Interpolants [63232#(<= main_x 146), 63233#(<= main_x 147), 63234#(<= main_x 148), 63235#(<= main_x 149), 63236#(<= main_x 150), 63237#(<= main_x 151), 63238#(<= main_x 152), 63239#(<= main_x 153), 63240#(<= main_x 154), 63084#true, 63085#false, 63086#(<= main_x 0), 63087#(<= main_x 1), 63088#(<= main_x 2), 63089#(<= main_x 3), 63090#(<= main_x 4), 63091#(<= main_x 5), 63092#(<= main_x 6), 63093#(<= main_x 7), 63094#(<= main_x 8), 63095#(<= main_x 9), 63096#(<= main_x 10), 63097#(<= main_x 11), 63098#(<= main_x 12), 63099#(<= main_x 13), 63100#(<= main_x 14), 63101#(<= main_x 15), 63102#(<= main_x 16), 63103#(<= main_x 17), 63104#(<= main_x 18), 63105#(<= main_x 19), 63106#(<= main_x 20), 63107#(<= main_x 21), 63108#(<= main_x 22), 63109#(<= main_x 23), 63110#(<= main_x 24), 63111#(<= main_x 25), 63112#(<= main_x 26), 63113#(<= main_x 27), 63114#(<= main_x 28), 63115#(<= main_x 29), 63116#(<= main_x 30), 63117#(<= main_x 31), 63118#(<= main_x 32), 63119#(<= main_x 33), 63120#(<= main_x 34), 63121#(<= main_x 35), 63122#(<= main_x 36), 63123#(<= main_x 37), 63124#(<= main_x 38), 63125#(<= main_x 39), 63126#(<= main_x 40), 63127#(<= main_x 41), 63128#(<= main_x 42), 63129#(<= main_x 43), 63130#(<= main_x 44), 63131#(<= main_x 45), 63132#(<= main_x 46), 63133#(<= main_x 47), 63134#(<= main_x 48), 63135#(<= main_x 49), 63136#(<= main_x 50), 63137#(<= main_x 51), 63138#(<= main_x 52), 63139#(<= main_x 53), 63140#(<= main_x 54), 63141#(<= main_x 55), 63142#(<= main_x 56), 63143#(<= main_x 57), 63144#(<= main_x 58), 63145#(<= main_x 59), 63146#(<= main_x 60), 63147#(<= main_x 61), 63148#(<= main_x 62), 63149#(<= main_x 63), 63150#(<= main_x 64), 63151#(<= main_x 65), 63152#(<= main_x 66), 63153#(<= main_x 67), 63154#(<= main_x 68), 63155#(<= main_x 69), 63156#(<= main_x 70), 63157#(<= main_x 71), 63158#(<= main_x 72), 63159#(<= main_x 73), 63160#(<= main_x 74), 63161#(<= main_x 75), 63162#(<= main_x 76), 63163#(<= main_x 77), 63164#(<= main_x 78), 63165#(<= main_x 79), 63166#(<= main_x 80), 63167#(<= main_x 81), 63168#(<= main_x 82), 63169#(<= main_x 83), 63170#(<= main_x 84), 63171#(<= main_x 85), 63172#(<= main_x 86), 63173#(<= main_x 87), 63174#(<= main_x 88), 63175#(<= main_x 89), 63176#(<= main_x 90), 63177#(<= main_x 91), 63178#(<= main_x 92), 63179#(<= main_x 93), 63180#(<= main_x 94), 63181#(<= main_x 95), 63182#(<= main_x 96), 63183#(<= main_x 97), 63184#(<= main_x 98), 63185#(<= main_x 99), 63186#(<= main_x 100), 63187#(<= main_x 101), 63188#(<= main_x 102), 63189#(<= main_x 103), 63190#(<= main_x 104), 63191#(<= main_x 105), 63192#(<= main_x 106), 63193#(<= main_x 107), 63194#(<= main_x 108), 63195#(<= main_x 109), 63196#(<= main_x 110), 63197#(<= main_x 111), 63198#(<= main_x 112), 63199#(<= main_x 113), 63200#(<= main_x 114), 63201#(<= main_x 115), 63202#(<= main_x 116), 63203#(<= main_x 117), 63204#(<= main_x 118), 63205#(<= main_x 119), 63206#(<= main_x 120), 63207#(<= main_x 121), 63208#(<= main_x 122), 63209#(<= main_x 123), 63210#(<= main_x 124), 63211#(<= main_x 125), 63212#(<= main_x 126), 63213#(<= main_x 127), 63214#(<= main_x 128), 63215#(<= main_x 129), 63216#(<= main_x 130), 63217#(<= main_x 131), 63218#(<= main_x 132), 63219#(<= main_x 133), 63220#(<= main_x 134), 63221#(<= main_x 135), 63222#(<= main_x 136), 63223#(<= main_x 137), 63224#(<= main_x 138), 63225#(<= main_x 139), 63226#(<= main_x 140), 63227#(<= main_x 141), 63228#(<= main_x 142), 63229#(<= main_x 143), 63230#(<= main_x 144), 63231#(<= main_x 145)] [2018-07-23 13:55:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:46,501 INFO L450 AbstractCegarLoop]: Interpolant automaton has 157 states [2018-07-23 13:55:46,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2018-07-23 13:55:46,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:55:46,505 INFO L87 Difference]: Start difference. First operand 158 states and 158 transitions. Second operand 157 states. [2018-07-23 13:55:46,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:46,902 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2018-07-23 13:55:46,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2018-07-23 13:55:46,902 INFO L78 Accepts]: Start accepts. Automaton has 157 states. Word has length 157 [2018-07-23 13:55:46,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:46,903 INFO L225 Difference]: With dead ends: 161 [2018-07-23 13:55:46,903 INFO L226 Difference]: Without dead ends: 159 [2018-07-23 13:55:46,904 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:55:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-07-23 13:55:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-07-23 13:55:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-07-23 13:55:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2018-07-23 13:55:46,907 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 157 [2018-07-23 13:55:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:46,907 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2018-07-23 13:55:46,908 INFO L472 AbstractCegarLoop]: Interpolant automaton has 157 states. [2018-07-23 13:55:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2018-07-23 13:55:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-23 13:55:46,908 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:46,908 INFO L357 BasicCegarLoop]: trace histogram [155, 1, 1, 1] [2018-07-23 13:55:46,909 INFO L414 AbstractCegarLoop]: === Iteration 156 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:46,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1101147706, now seen corresponding path program 155 times [2018-07-23 13:55:46,909 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12090 backedges. 0 proven. 12090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:47,578 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:47,578 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [157] total 157 [2018-07-23 13:55:47,578 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:47,579 INFO L185 omatonBuilderFactory]: Interpolants [64000#(<= main_x 117), 64001#(<= main_x 118), 64002#(<= main_x 119), 64003#(<= main_x 120), 64004#(<= main_x 121), 64005#(<= main_x 122), 64006#(<= main_x 123), 64007#(<= main_x 124), 64008#(<= main_x 125), 64009#(<= main_x 126), 64010#(<= main_x 127), 64011#(<= main_x 128), 64012#(<= main_x 129), 64013#(<= main_x 130), 64014#(<= main_x 131), 64015#(<= main_x 132), 64016#(<= main_x 133), 64017#(<= main_x 134), 64018#(<= main_x 135), 64019#(<= main_x 136), 64020#(<= main_x 137), 64021#(<= main_x 138), 64022#(<= main_x 139), 64023#(<= main_x 140), 64024#(<= main_x 141), 64025#(<= main_x 142), 64026#(<= main_x 143), 64027#(<= main_x 144), 64028#(<= main_x 145), 64029#(<= main_x 146), 64030#(<= main_x 147), 64031#(<= main_x 148), 64032#(<= main_x 149), 64033#(<= main_x 150), 64034#(<= main_x 151), 64035#(<= main_x 152), 64036#(<= main_x 153), 64037#(<= main_x 154), 64038#(<= main_x 155), 63881#true, 63882#false, 63883#(<= main_x 0), 63884#(<= main_x 1), 63885#(<= main_x 2), 63886#(<= main_x 3), 63887#(<= main_x 4), 63888#(<= main_x 5), 63889#(<= main_x 6), 63890#(<= main_x 7), 63891#(<= main_x 8), 63892#(<= main_x 9), 63893#(<= main_x 10), 63894#(<= main_x 11), 63895#(<= main_x 12), 63896#(<= main_x 13), 63897#(<= main_x 14), 63898#(<= main_x 15), 63899#(<= main_x 16), 63900#(<= main_x 17), 63901#(<= main_x 18), 63902#(<= main_x 19), 63903#(<= main_x 20), 63904#(<= main_x 21), 63905#(<= main_x 22), 63906#(<= main_x 23), 63907#(<= main_x 24), 63908#(<= main_x 25), 63909#(<= main_x 26), 63910#(<= main_x 27), 63911#(<= main_x 28), 63912#(<= main_x 29), 63913#(<= main_x 30), 63914#(<= main_x 31), 63915#(<= main_x 32), 63916#(<= main_x 33), 63917#(<= main_x 34), 63918#(<= main_x 35), 63919#(<= main_x 36), 63920#(<= main_x 37), 63921#(<= main_x 38), 63922#(<= main_x 39), 63923#(<= main_x 40), 63924#(<= main_x 41), 63925#(<= main_x 42), 63926#(<= main_x 43), 63927#(<= main_x 44), 63928#(<= main_x 45), 63929#(<= main_x 46), 63930#(<= main_x 47), 63931#(<= main_x 48), 63932#(<= main_x 49), 63933#(<= main_x 50), 63934#(<= main_x 51), 63935#(<= main_x 52), 63936#(<= main_x 53), 63937#(<= main_x 54), 63938#(<= main_x 55), 63939#(<= main_x 56), 63940#(<= main_x 57), 63941#(<= main_x 58), 63942#(<= main_x 59), 63943#(<= main_x 60), 63944#(<= main_x 61), 63945#(<= main_x 62), 63946#(<= main_x 63), 63947#(<= main_x 64), 63948#(<= main_x 65), 63949#(<= main_x 66), 63950#(<= main_x 67), 63951#(<= main_x 68), 63952#(<= main_x 69), 63953#(<= main_x 70), 63954#(<= main_x 71), 63955#(<= main_x 72), 63956#(<= main_x 73), 63957#(<= main_x 74), 63958#(<= main_x 75), 63959#(<= main_x 76), 63960#(<= main_x 77), 63961#(<= main_x 78), 63962#(<= main_x 79), 63963#(<= main_x 80), 63964#(<= main_x 81), 63965#(<= main_x 82), 63966#(<= main_x 83), 63967#(<= main_x 84), 63968#(<= main_x 85), 63969#(<= main_x 86), 63970#(<= main_x 87), 63971#(<= main_x 88), 63972#(<= main_x 89), 63973#(<= main_x 90), 63974#(<= main_x 91), 63975#(<= main_x 92), 63976#(<= main_x 93), 63977#(<= main_x 94), 63978#(<= main_x 95), 63979#(<= main_x 96), 63980#(<= main_x 97), 63981#(<= main_x 98), 63982#(<= main_x 99), 63983#(<= main_x 100), 63984#(<= main_x 101), 63985#(<= main_x 102), 63986#(<= main_x 103), 63987#(<= main_x 104), 63988#(<= main_x 105), 63989#(<= main_x 106), 63990#(<= main_x 107), 63991#(<= main_x 108), 63992#(<= main_x 109), 63993#(<= main_x 110), 63994#(<= main_x 111), 63995#(<= main_x 112), 63996#(<= main_x 113), 63997#(<= main_x 114), 63998#(<= main_x 115), 63999#(<= main_x 116)] [2018-07-23 13:55:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 12090 backedges. 0 proven. 12090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:47,580 INFO L450 AbstractCegarLoop]: Interpolant automaton has 158 states [2018-07-23 13:55:47,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2018-07-23 13:55:47,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:55:47,582 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand 158 states. [2018-07-23 13:55:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:47,811 INFO L93 Difference]: Finished difference Result 162 states and 162 transitions. [2018-07-23 13:55:47,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2018-07-23 13:55:47,811 INFO L78 Accepts]: Start accepts. Automaton has 158 states. Word has length 158 [2018-07-23 13:55:47,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:47,812 INFO L225 Difference]: With dead ends: 162 [2018-07-23 13:55:47,812 INFO L226 Difference]: Without dead ends: 160 [2018-07-23 13:55:47,813 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:55:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-07-23 13:55:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-07-23 13:55:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-07-23 13:55:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2018-07-23 13:55:47,816 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 158 [2018-07-23 13:55:47,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:47,816 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2018-07-23 13:55:47,816 INFO L472 AbstractCegarLoop]: Interpolant automaton has 158 states. [2018-07-23 13:55:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2018-07-23 13:55:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-23 13:55:47,816 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:47,816 INFO L357 BasicCegarLoop]: trace histogram [156, 1, 1, 1] [2018-07-23 13:55:47,817 INFO L414 AbstractCegarLoop]: === Iteration 157 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:47,817 INFO L82 PathProgramCache]: Analyzing trace with hash 224155616, now seen corresponding path program 156 times [2018-07-23 13:55:47,817 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:48,517 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:48,517 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [158] total 158 [2018-07-23 13:55:48,517 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:48,518 INFO L185 omatonBuilderFactory]: Interpolants [64768#(<= main_x 83), 64769#(<= main_x 84), 64770#(<= main_x 85), 64771#(<= main_x 86), 64772#(<= main_x 87), 64773#(<= main_x 88), 64774#(<= main_x 89), 64775#(<= main_x 90), 64776#(<= main_x 91), 64777#(<= main_x 92), 64778#(<= main_x 93), 64779#(<= main_x 94), 64780#(<= main_x 95), 64781#(<= main_x 96), 64782#(<= main_x 97), 64783#(<= main_x 98), 64784#(<= main_x 99), 64785#(<= main_x 100), 64786#(<= main_x 101), 64787#(<= main_x 102), 64788#(<= main_x 103), 64789#(<= main_x 104), 64790#(<= main_x 105), 64791#(<= main_x 106), 64792#(<= main_x 107), 64793#(<= main_x 108), 64794#(<= main_x 109), 64795#(<= main_x 110), 64796#(<= main_x 111), 64797#(<= main_x 112), 64798#(<= main_x 113), 64799#(<= main_x 114), 64800#(<= main_x 115), 64801#(<= main_x 116), 64802#(<= main_x 117), 64803#(<= main_x 118), 64804#(<= main_x 119), 64805#(<= main_x 120), 64806#(<= main_x 121), 64807#(<= main_x 122), 64808#(<= main_x 123), 64809#(<= main_x 124), 64810#(<= main_x 125), 64811#(<= main_x 126), 64812#(<= main_x 127), 64813#(<= main_x 128), 64814#(<= main_x 129), 64815#(<= main_x 130), 64816#(<= main_x 131), 64817#(<= main_x 132), 64818#(<= main_x 133), 64819#(<= main_x 134), 64820#(<= main_x 135), 64821#(<= main_x 136), 64822#(<= main_x 137), 64823#(<= main_x 138), 64824#(<= main_x 139), 64825#(<= main_x 140), 64826#(<= main_x 141), 64827#(<= main_x 142), 64828#(<= main_x 143), 64829#(<= main_x 144), 64830#(<= main_x 145), 64831#(<= main_x 146), 64832#(<= main_x 147), 64833#(<= main_x 148), 64834#(<= main_x 149), 64835#(<= main_x 150), 64836#(<= main_x 151), 64837#(<= main_x 152), 64838#(<= main_x 153), 64839#(<= main_x 154), 64840#(<= main_x 155), 64841#(<= main_x 156), 64683#true, 64684#false, 64685#(<= main_x 0), 64686#(<= main_x 1), 64687#(<= main_x 2), 64688#(<= main_x 3), 64689#(<= main_x 4), 64690#(<= main_x 5), 64691#(<= main_x 6), 64692#(<= main_x 7), 64693#(<= main_x 8), 64694#(<= main_x 9), 64695#(<= main_x 10), 64696#(<= main_x 11), 64697#(<= main_x 12), 64698#(<= main_x 13), 64699#(<= main_x 14), 64700#(<= main_x 15), 64701#(<= main_x 16), 64702#(<= main_x 17), 64703#(<= main_x 18), 64704#(<= main_x 19), 64705#(<= main_x 20), 64706#(<= main_x 21), 64707#(<= main_x 22), 64708#(<= main_x 23), 64709#(<= main_x 24), 64710#(<= main_x 25), 64711#(<= main_x 26), 64712#(<= main_x 27), 64713#(<= main_x 28), 64714#(<= main_x 29), 64715#(<= main_x 30), 64716#(<= main_x 31), 64717#(<= main_x 32), 64718#(<= main_x 33), 64719#(<= main_x 34), 64720#(<= main_x 35), 64721#(<= main_x 36), 64722#(<= main_x 37), 64723#(<= main_x 38), 64724#(<= main_x 39), 64725#(<= main_x 40), 64726#(<= main_x 41), 64727#(<= main_x 42), 64728#(<= main_x 43), 64729#(<= main_x 44), 64730#(<= main_x 45), 64731#(<= main_x 46), 64732#(<= main_x 47), 64733#(<= main_x 48), 64734#(<= main_x 49), 64735#(<= main_x 50), 64736#(<= main_x 51), 64737#(<= main_x 52), 64738#(<= main_x 53), 64739#(<= main_x 54), 64740#(<= main_x 55), 64741#(<= main_x 56), 64742#(<= main_x 57), 64743#(<= main_x 58), 64744#(<= main_x 59), 64745#(<= main_x 60), 64746#(<= main_x 61), 64747#(<= main_x 62), 64748#(<= main_x 63), 64749#(<= main_x 64), 64750#(<= main_x 65), 64751#(<= main_x 66), 64752#(<= main_x 67), 64753#(<= main_x 68), 64754#(<= main_x 69), 64755#(<= main_x 70), 64756#(<= main_x 71), 64757#(<= main_x 72), 64758#(<= main_x 73), 64759#(<= main_x 74), 64760#(<= main_x 75), 64761#(<= main_x 76), 64762#(<= main_x 77), 64763#(<= main_x 78), 64764#(<= main_x 79), 64765#(<= main_x 80), 64766#(<= main_x 81), 64767#(<= main_x 82)] [2018-07-23 13:55:48,518 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:48,518 INFO L450 AbstractCegarLoop]: Interpolant automaton has 159 states [2018-07-23 13:55:48,520 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2018-07-23 13:55:48,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:55:48,521 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 159 states. [2018-07-23 13:55:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:48,686 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2018-07-23 13:55:48,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2018-07-23 13:55:48,686 INFO L78 Accepts]: Start accepts. Automaton has 159 states. Word has length 159 [2018-07-23 13:55:48,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:48,687 INFO L225 Difference]: With dead ends: 163 [2018-07-23 13:55:48,687 INFO L226 Difference]: Without dead ends: 161 [2018-07-23 13:55:48,688 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:55:48,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-07-23 13:55:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-07-23 13:55:48,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-07-23 13:55:48,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2018-07-23 13:55:48,691 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 159 [2018-07-23 13:55:48,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:48,691 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2018-07-23 13:55:48,691 INFO L472 AbstractCegarLoop]: Interpolant automaton has 159 states. [2018-07-23 13:55:48,691 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2018-07-23 13:55:48,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-07-23 13:55:48,691 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:48,692 INFO L357 BasicCegarLoop]: trace histogram [157, 1, 1, 1] [2018-07-23 13:55:48,692 INFO L414 AbstractCegarLoop]: === Iteration 158 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:48,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1641114362, now seen corresponding path program 157 times [2018-07-23 13:55:48,692 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 0 proven. 12403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:49,447 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:49,448 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [159] total 159 [2018-07-23 13:55:49,448 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:49,448 INFO L185 omatonBuilderFactory]: Interpolants [65537#(<= main_x 45), 65536#(<= main_x 44), 65539#(<= main_x 47), 65538#(<= main_x 46), 65541#(<= main_x 49), 65540#(<= main_x 48), 65543#(<= main_x 51), 65542#(<= main_x 50), 65545#(<= main_x 53), 65544#(<= main_x 52), 65547#(<= main_x 55), 65546#(<= main_x 54), 65549#(<= main_x 57), 65548#(<= main_x 56), 65551#(<= main_x 59), 65550#(<= main_x 58), 65553#(<= main_x 61), 65552#(<= main_x 60), 65555#(<= main_x 63), 65554#(<= main_x 62), 65557#(<= main_x 65), 65556#(<= main_x 64), 65559#(<= main_x 67), 65558#(<= main_x 66), 65561#(<= main_x 69), 65560#(<= main_x 68), 65563#(<= main_x 71), 65562#(<= main_x 70), 65565#(<= main_x 73), 65564#(<= main_x 72), 65567#(<= main_x 75), 65566#(<= main_x 74), 65569#(<= main_x 77), 65568#(<= main_x 76), 65571#(<= main_x 79), 65570#(<= main_x 78), 65573#(<= main_x 81), 65572#(<= main_x 80), 65575#(<= main_x 83), 65574#(<= main_x 82), 65577#(<= main_x 85), 65576#(<= main_x 84), 65579#(<= main_x 87), 65578#(<= main_x 86), 65581#(<= main_x 89), 65580#(<= main_x 88), 65583#(<= main_x 91), 65582#(<= main_x 90), 65585#(<= main_x 93), 65584#(<= main_x 92), 65587#(<= main_x 95), 65586#(<= main_x 94), 65589#(<= main_x 97), 65588#(<= main_x 96), 65591#(<= main_x 99), 65590#(<= main_x 98), 65593#(<= main_x 101), 65592#(<= main_x 100), 65595#(<= main_x 103), 65594#(<= main_x 102), 65597#(<= main_x 105), 65596#(<= main_x 104), 65599#(<= main_x 107), 65598#(<= main_x 106), 65601#(<= main_x 109), 65600#(<= main_x 108), 65603#(<= main_x 111), 65602#(<= main_x 110), 65605#(<= main_x 113), 65604#(<= main_x 112), 65607#(<= main_x 115), 65606#(<= main_x 114), 65609#(<= main_x 117), 65608#(<= main_x 116), 65611#(<= main_x 119), 65610#(<= main_x 118), 65613#(<= main_x 121), 65612#(<= main_x 120), 65615#(<= main_x 123), 65614#(<= main_x 122), 65617#(<= main_x 125), 65616#(<= main_x 124), 65619#(<= main_x 127), 65618#(<= main_x 126), 65621#(<= main_x 129), 65620#(<= main_x 128), 65623#(<= main_x 131), 65622#(<= main_x 130), 65625#(<= main_x 133), 65624#(<= main_x 132), 65627#(<= main_x 135), 65626#(<= main_x 134), 65629#(<= main_x 137), 65628#(<= main_x 136), 65631#(<= main_x 139), 65630#(<= main_x 138), 65633#(<= main_x 141), 65632#(<= main_x 140), 65635#(<= main_x 143), 65634#(<= main_x 142), 65637#(<= main_x 145), 65636#(<= main_x 144), 65639#(<= main_x 147), 65638#(<= main_x 146), 65641#(<= main_x 149), 65640#(<= main_x 148), 65643#(<= main_x 151), 65642#(<= main_x 150), 65645#(<= main_x 153), 65644#(<= main_x 152), 65647#(<= main_x 155), 65646#(<= main_x 154), 65649#(<= main_x 157), 65648#(<= main_x 156), 65490#true, 65491#false, 65492#(<= main_x 0), 65493#(<= main_x 1), 65494#(<= main_x 2), 65495#(<= main_x 3), 65496#(<= main_x 4), 65497#(<= main_x 5), 65498#(<= main_x 6), 65499#(<= main_x 7), 65500#(<= main_x 8), 65501#(<= main_x 9), 65502#(<= main_x 10), 65503#(<= main_x 11), 65504#(<= main_x 12), 65505#(<= main_x 13), 65506#(<= main_x 14), 65507#(<= main_x 15), 65508#(<= main_x 16), 65509#(<= main_x 17), 65510#(<= main_x 18), 65511#(<= main_x 19), 65512#(<= main_x 20), 65513#(<= main_x 21), 65514#(<= main_x 22), 65515#(<= main_x 23), 65516#(<= main_x 24), 65517#(<= main_x 25), 65518#(<= main_x 26), 65519#(<= main_x 27), 65520#(<= main_x 28), 65521#(<= main_x 29), 65522#(<= main_x 30), 65523#(<= main_x 31), 65524#(<= main_x 32), 65525#(<= main_x 33), 65526#(<= main_x 34), 65527#(<= main_x 35), 65528#(<= main_x 36), 65529#(<= main_x 37), 65530#(<= main_x 38), 65531#(<= main_x 39), 65532#(<= main_x 40), 65533#(<= main_x 41), 65534#(<= main_x 42), 65535#(<= main_x 43)] [2018-07-23 13:55:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 0 proven. 12403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:49,449 INFO L450 AbstractCegarLoop]: Interpolant automaton has 160 states [2018-07-23 13:55:49,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2018-07-23 13:55:49,451 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:55:49,451 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand 160 states. [2018-07-23 13:55:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:49,742 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-07-23 13:55:49,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2018-07-23 13:55:49,742 INFO L78 Accepts]: Start accepts. Automaton has 160 states. Word has length 160 [2018-07-23 13:55:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:49,743 INFO L225 Difference]: With dead ends: 164 [2018-07-23 13:55:49,743 INFO L226 Difference]: Without dead ends: 162 [2018-07-23 13:55:49,743 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:55:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-07-23 13:55:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-07-23 13:55:49,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-07-23 13:55:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2018-07-23 13:55:49,746 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 160 [2018-07-23 13:55:49,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:49,746 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2018-07-23 13:55:49,746 INFO L472 AbstractCegarLoop]: Interpolant automaton has 160 states. [2018-07-23 13:55:49,746 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2018-07-23 13:55:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-07-23 13:55:49,747 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:49,747 INFO L357 BasicCegarLoop]: trace histogram [158, 1, 1, 1] [2018-07-23 13:55:49,747 INFO L414 AbstractCegarLoop]: === Iteration 159 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:49,747 INFO L82 PathProgramCache]: Analyzing trace with hash 665058464, now seen corresponding path program 158 times [2018-07-23 13:55:49,747 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:50,479 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:50,479 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [160] total 160 [2018-07-23 13:55:50,480 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:50,480 INFO L185 omatonBuilderFactory]: Interpolants [66305#(<= main_x 1), 66304#(<= main_x 0), 66307#(<= main_x 3), 66306#(<= main_x 2), 66309#(<= main_x 5), 66308#(<= main_x 4), 66311#(<= main_x 7), 66310#(<= main_x 6), 66313#(<= main_x 9), 66312#(<= main_x 8), 66315#(<= main_x 11), 66314#(<= main_x 10), 66317#(<= main_x 13), 66316#(<= main_x 12), 66319#(<= main_x 15), 66318#(<= main_x 14), 66321#(<= main_x 17), 66320#(<= main_x 16), 66323#(<= main_x 19), 66322#(<= main_x 18), 66325#(<= main_x 21), 66324#(<= main_x 20), 66327#(<= main_x 23), 66326#(<= main_x 22), 66329#(<= main_x 25), 66328#(<= main_x 24), 66331#(<= main_x 27), 66330#(<= main_x 26), 66333#(<= main_x 29), 66332#(<= main_x 28), 66335#(<= main_x 31), 66334#(<= main_x 30), 66337#(<= main_x 33), 66336#(<= main_x 32), 66339#(<= main_x 35), 66338#(<= main_x 34), 66341#(<= main_x 37), 66340#(<= main_x 36), 66343#(<= main_x 39), 66342#(<= main_x 38), 66345#(<= main_x 41), 66344#(<= main_x 40), 66347#(<= main_x 43), 66346#(<= main_x 42), 66349#(<= main_x 45), 66348#(<= main_x 44), 66351#(<= main_x 47), 66350#(<= main_x 46), 66353#(<= main_x 49), 66352#(<= main_x 48), 66355#(<= main_x 51), 66354#(<= main_x 50), 66357#(<= main_x 53), 66356#(<= main_x 52), 66359#(<= main_x 55), 66358#(<= main_x 54), 66361#(<= main_x 57), 66360#(<= main_x 56), 66363#(<= main_x 59), 66362#(<= main_x 58), 66365#(<= main_x 61), 66364#(<= main_x 60), 66367#(<= main_x 63), 66366#(<= main_x 62), 66369#(<= main_x 65), 66368#(<= main_x 64), 66371#(<= main_x 67), 66370#(<= main_x 66), 66373#(<= main_x 69), 66372#(<= main_x 68), 66375#(<= main_x 71), 66374#(<= main_x 70), 66377#(<= main_x 73), 66376#(<= main_x 72), 66379#(<= main_x 75), 66378#(<= main_x 74), 66381#(<= main_x 77), 66380#(<= main_x 76), 66383#(<= main_x 79), 66382#(<= main_x 78), 66385#(<= main_x 81), 66384#(<= main_x 80), 66387#(<= main_x 83), 66386#(<= main_x 82), 66389#(<= main_x 85), 66388#(<= main_x 84), 66391#(<= main_x 87), 66390#(<= main_x 86), 66393#(<= main_x 89), 66392#(<= main_x 88), 66395#(<= main_x 91), 66394#(<= main_x 90), 66397#(<= main_x 93), 66396#(<= main_x 92), 66399#(<= main_x 95), 66398#(<= main_x 94), 66401#(<= main_x 97), 66400#(<= main_x 96), 66403#(<= main_x 99), 66402#(<= main_x 98), 66405#(<= main_x 101), 66404#(<= main_x 100), 66407#(<= main_x 103), 66406#(<= main_x 102), 66409#(<= main_x 105), 66408#(<= main_x 104), 66411#(<= main_x 107), 66410#(<= main_x 106), 66413#(<= main_x 109), 66412#(<= main_x 108), 66415#(<= main_x 111), 66414#(<= main_x 110), 66417#(<= main_x 113), 66416#(<= main_x 112), 66419#(<= main_x 115), 66418#(<= main_x 114), 66421#(<= main_x 117), 66420#(<= main_x 116), 66423#(<= main_x 119), 66422#(<= main_x 118), 66425#(<= main_x 121), 66424#(<= main_x 120), 66427#(<= main_x 123), 66426#(<= main_x 122), 66429#(<= main_x 125), 66428#(<= main_x 124), 66431#(<= main_x 127), 66430#(<= main_x 126), 66433#(<= main_x 129), 66432#(<= main_x 128), 66435#(<= main_x 131), 66434#(<= main_x 130), 66437#(<= main_x 133), 66436#(<= main_x 132), 66439#(<= main_x 135), 66438#(<= main_x 134), 66441#(<= main_x 137), 66440#(<= main_x 136), 66443#(<= main_x 139), 66442#(<= main_x 138), 66445#(<= main_x 141), 66444#(<= main_x 140), 66447#(<= main_x 143), 66446#(<= main_x 142), 66449#(<= main_x 145), 66448#(<= main_x 144), 66451#(<= main_x 147), 66450#(<= main_x 146), 66453#(<= main_x 149), 66452#(<= main_x 148), 66455#(<= main_x 151), 66454#(<= main_x 150), 66457#(<= main_x 153), 66456#(<= main_x 152), 66459#(<= main_x 155), 66458#(<= main_x 154), 66461#(<= main_x 157), 66460#(<= main_x 156), 66462#(<= main_x 158), 66303#false, 66302#true] [2018-07-23 13:55:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:50,481 INFO L450 AbstractCegarLoop]: Interpolant automaton has 161 states [2018-07-23 13:55:50,483 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2018-07-23 13:55:50,484 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:55:50,485 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand 161 states. [2018-07-23 13:55:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:50,942 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2018-07-23 13:55:50,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2018-07-23 13:55:50,942 INFO L78 Accepts]: Start accepts. Automaton has 161 states. Word has length 161 [2018-07-23 13:55:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:50,942 INFO L225 Difference]: With dead ends: 165 [2018-07-23 13:55:50,942 INFO L226 Difference]: Without dead ends: 163 [2018-07-23 13:55:50,944 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:55:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-07-23 13:55:50,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-07-23 13:55:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-07-23 13:55:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2018-07-23 13:55:50,946 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 161 [2018-07-23 13:55:50,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:50,946 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2018-07-23 13:55:50,946 INFO L472 AbstractCegarLoop]: Interpolant automaton has 161 states. [2018-07-23 13:55:50,946 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2018-07-23 13:55:50,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 13:55:50,946 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:50,946 INFO L357 BasicCegarLoop]: trace histogram [159, 1, 1, 1] [2018-07-23 13:55:50,947 INFO L414 AbstractCegarLoop]: === Iteration 160 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:50,947 INFO L82 PathProgramCache]: Analyzing trace with hash -858027962, now seen corresponding path program 159 times [2018-07-23 13:55:50,947 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 12720 backedges. 0 proven. 12720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:51,597 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:51,597 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [161] total 161 [2018-07-23 13:55:51,597 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:51,598 INFO L185 omatonBuilderFactory]: Interpolants [67119#true, 67121#(<= main_x 0), 67120#false, 67123#(<= main_x 2), 67122#(<= main_x 1), 67125#(<= main_x 4), 67124#(<= main_x 3), 67127#(<= main_x 6), 67126#(<= main_x 5), 67129#(<= main_x 8), 67128#(<= main_x 7), 67131#(<= main_x 10), 67130#(<= main_x 9), 67133#(<= main_x 12), 67132#(<= main_x 11), 67135#(<= main_x 14), 67134#(<= main_x 13), 67137#(<= main_x 16), 67136#(<= main_x 15), 67139#(<= main_x 18), 67138#(<= main_x 17), 67141#(<= main_x 20), 67140#(<= main_x 19), 67143#(<= main_x 22), 67142#(<= main_x 21), 67145#(<= main_x 24), 67144#(<= main_x 23), 67147#(<= main_x 26), 67146#(<= main_x 25), 67149#(<= main_x 28), 67148#(<= main_x 27), 67151#(<= main_x 30), 67150#(<= main_x 29), 67153#(<= main_x 32), 67152#(<= main_x 31), 67155#(<= main_x 34), 67154#(<= main_x 33), 67157#(<= main_x 36), 67156#(<= main_x 35), 67159#(<= main_x 38), 67158#(<= main_x 37), 67161#(<= main_x 40), 67160#(<= main_x 39), 67163#(<= main_x 42), 67162#(<= main_x 41), 67165#(<= main_x 44), 67164#(<= main_x 43), 67167#(<= main_x 46), 67166#(<= main_x 45), 67169#(<= main_x 48), 67168#(<= main_x 47), 67171#(<= main_x 50), 67170#(<= main_x 49), 67173#(<= main_x 52), 67172#(<= main_x 51), 67175#(<= main_x 54), 67174#(<= main_x 53), 67177#(<= main_x 56), 67176#(<= main_x 55), 67179#(<= main_x 58), 67178#(<= main_x 57), 67181#(<= main_x 60), 67180#(<= main_x 59), 67183#(<= main_x 62), 67182#(<= main_x 61), 67185#(<= main_x 64), 67184#(<= main_x 63), 67187#(<= main_x 66), 67186#(<= main_x 65), 67189#(<= main_x 68), 67188#(<= main_x 67), 67191#(<= main_x 70), 67190#(<= main_x 69), 67193#(<= main_x 72), 67192#(<= main_x 71), 67195#(<= main_x 74), 67194#(<= main_x 73), 67197#(<= main_x 76), 67196#(<= main_x 75), 67199#(<= main_x 78), 67198#(<= main_x 77), 67201#(<= main_x 80), 67200#(<= main_x 79), 67203#(<= main_x 82), 67202#(<= main_x 81), 67205#(<= main_x 84), 67204#(<= main_x 83), 67207#(<= main_x 86), 67206#(<= main_x 85), 67209#(<= main_x 88), 67208#(<= main_x 87), 67211#(<= main_x 90), 67210#(<= main_x 89), 67213#(<= main_x 92), 67212#(<= main_x 91), 67215#(<= main_x 94), 67214#(<= main_x 93), 67217#(<= main_x 96), 67216#(<= main_x 95), 67219#(<= main_x 98), 67218#(<= main_x 97), 67221#(<= main_x 100), 67220#(<= main_x 99), 67223#(<= main_x 102), 67222#(<= main_x 101), 67225#(<= main_x 104), 67224#(<= main_x 103), 67227#(<= main_x 106), 67226#(<= main_x 105), 67229#(<= main_x 108), 67228#(<= main_x 107), 67231#(<= main_x 110), 67230#(<= main_x 109), 67233#(<= main_x 112), 67232#(<= main_x 111), 67235#(<= main_x 114), 67234#(<= main_x 113), 67237#(<= main_x 116), 67236#(<= main_x 115), 67239#(<= main_x 118), 67238#(<= main_x 117), 67241#(<= main_x 120), 67240#(<= main_x 119), 67243#(<= main_x 122), 67242#(<= main_x 121), 67245#(<= main_x 124), 67244#(<= main_x 123), 67247#(<= main_x 126), 67246#(<= main_x 125), 67249#(<= main_x 128), 67248#(<= main_x 127), 67251#(<= main_x 130), 67250#(<= main_x 129), 67253#(<= main_x 132), 67252#(<= main_x 131), 67255#(<= main_x 134), 67254#(<= main_x 133), 67257#(<= main_x 136), 67256#(<= main_x 135), 67259#(<= main_x 138), 67258#(<= main_x 137), 67261#(<= main_x 140), 67260#(<= main_x 139), 67263#(<= main_x 142), 67262#(<= main_x 141), 67265#(<= main_x 144), 67264#(<= main_x 143), 67267#(<= main_x 146), 67266#(<= main_x 145), 67269#(<= main_x 148), 67268#(<= main_x 147), 67271#(<= main_x 150), 67270#(<= main_x 149), 67273#(<= main_x 152), 67272#(<= main_x 151), 67275#(<= main_x 154), 67274#(<= main_x 153), 67277#(<= main_x 156), 67276#(<= main_x 155), 67279#(<= main_x 158), 67278#(<= main_x 157), 67280#(<= main_x 159)] [2018-07-23 13:55:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 12720 backedges. 0 proven. 12720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:51,598 INFO L450 AbstractCegarLoop]: Interpolant automaton has 162 states [2018-07-23 13:55:51,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2018-07-23 13:55:51,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:55:51,601 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand 162 states. [2018-07-23 13:55:52,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:52,006 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-07-23 13:55:52,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2018-07-23 13:55:52,006 INFO L78 Accepts]: Start accepts. Automaton has 162 states. Word has length 162 [2018-07-23 13:55:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:52,007 INFO L225 Difference]: With dead ends: 166 [2018-07-23 13:55:52,007 INFO L226 Difference]: Without dead ends: 164 [2018-07-23 13:55:52,009 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:55:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-07-23 13:55:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-07-23 13:55:52,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-07-23 13:55:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2018-07-23 13:55:52,012 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 162 [2018-07-23 13:55:52,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:52,012 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2018-07-23 13:55:52,012 INFO L472 AbstractCegarLoop]: Interpolant automaton has 162 states. [2018-07-23 13:55:52,012 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2018-07-23 13:55:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-23 13:55:52,013 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:52,013 INFO L357 BasicCegarLoop]: trace histogram [160, 1, 1, 1] [2018-07-23 13:55:52,013 INFO L414 AbstractCegarLoop]: === Iteration 161 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:52,013 INFO L82 PathProgramCache]: Analyzing trace with hash -829066912, now seen corresponding path program 160 times [2018-07-23 13:55:52,013 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:52,985 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:52,985 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [162] total 162 [2018-07-23 13:55:52,985 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:52,985 INFO L185 omatonBuilderFactory]: Interpolants [68097#(<= main_x 154), 68096#(<= main_x 153), 68099#(<= main_x 156), 68098#(<= main_x 155), 68101#(<= main_x 158), 68100#(<= main_x 157), 68103#(<= main_x 160), 68102#(<= main_x 159), 67941#true, 67943#(<= main_x 0), 67942#false, 67945#(<= main_x 2), 67944#(<= main_x 1), 67947#(<= main_x 4), 67946#(<= main_x 3), 67949#(<= main_x 6), 67948#(<= main_x 5), 67951#(<= main_x 8), 67950#(<= main_x 7), 67953#(<= main_x 10), 67952#(<= main_x 9), 67955#(<= main_x 12), 67954#(<= main_x 11), 67957#(<= main_x 14), 67956#(<= main_x 13), 67959#(<= main_x 16), 67958#(<= main_x 15), 67961#(<= main_x 18), 67960#(<= main_x 17), 67963#(<= main_x 20), 67962#(<= main_x 19), 67965#(<= main_x 22), 67964#(<= main_x 21), 67967#(<= main_x 24), 67966#(<= main_x 23), 67969#(<= main_x 26), 67968#(<= main_x 25), 67971#(<= main_x 28), 67970#(<= main_x 27), 67973#(<= main_x 30), 67972#(<= main_x 29), 67975#(<= main_x 32), 67974#(<= main_x 31), 67977#(<= main_x 34), 67976#(<= main_x 33), 67979#(<= main_x 36), 67978#(<= main_x 35), 67981#(<= main_x 38), 67980#(<= main_x 37), 67983#(<= main_x 40), 67982#(<= main_x 39), 67985#(<= main_x 42), 67984#(<= main_x 41), 67987#(<= main_x 44), 67986#(<= main_x 43), 67989#(<= main_x 46), 67988#(<= main_x 45), 67991#(<= main_x 48), 67990#(<= main_x 47), 67993#(<= main_x 50), 67992#(<= main_x 49), 67995#(<= main_x 52), 67994#(<= main_x 51), 67997#(<= main_x 54), 67996#(<= main_x 53), 67999#(<= main_x 56), 67998#(<= main_x 55), 68001#(<= main_x 58), 68000#(<= main_x 57), 68003#(<= main_x 60), 68002#(<= main_x 59), 68005#(<= main_x 62), 68004#(<= main_x 61), 68007#(<= main_x 64), 68006#(<= main_x 63), 68009#(<= main_x 66), 68008#(<= main_x 65), 68011#(<= main_x 68), 68010#(<= main_x 67), 68013#(<= main_x 70), 68012#(<= main_x 69), 68015#(<= main_x 72), 68014#(<= main_x 71), 68017#(<= main_x 74), 68016#(<= main_x 73), 68019#(<= main_x 76), 68018#(<= main_x 75), 68021#(<= main_x 78), 68020#(<= main_x 77), 68023#(<= main_x 80), 68022#(<= main_x 79), 68025#(<= main_x 82), 68024#(<= main_x 81), 68027#(<= main_x 84), 68026#(<= main_x 83), 68029#(<= main_x 86), 68028#(<= main_x 85), 68031#(<= main_x 88), 68030#(<= main_x 87), 68033#(<= main_x 90), 68032#(<= main_x 89), 68035#(<= main_x 92), 68034#(<= main_x 91), 68037#(<= main_x 94), 68036#(<= main_x 93), 68039#(<= main_x 96), 68038#(<= main_x 95), 68041#(<= main_x 98), 68040#(<= main_x 97), 68043#(<= main_x 100), 68042#(<= main_x 99), 68045#(<= main_x 102), 68044#(<= main_x 101), 68047#(<= main_x 104), 68046#(<= main_x 103), 68049#(<= main_x 106), 68048#(<= main_x 105), 68051#(<= main_x 108), 68050#(<= main_x 107), 68053#(<= main_x 110), 68052#(<= main_x 109), 68055#(<= main_x 112), 68054#(<= main_x 111), 68057#(<= main_x 114), 68056#(<= main_x 113), 68059#(<= main_x 116), 68058#(<= main_x 115), 68061#(<= main_x 118), 68060#(<= main_x 117), 68063#(<= main_x 120), 68062#(<= main_x 119), 68065#(<= main_x 122), 68064#(<= main_x 121), 68067#(<= main_x 124), 68066#(<= main_x 123), 68069#(<= main_x 126), 68068#(<= main_x 125), 68071#(<= main_x 128), 68070#(<= main_x 127), 68073#(<= main_x 130), 68072#(<= main_x 129), 68075#(<= main_x 132), 68074#(<= main_x 131), 68077#(<= main_x 134), 68076#(<= main_x 133), 68079#(<= main_x 136), 68078#(<= main_x 135), 68081#(<= main_x 138), 68080#(<= main_x 137), 68083#(<= main_x 140), 68082#(<= main_x 139), 68085#(<= main_x 142), 68084#(<= main_x 141), 68087#(<= main_x 144), 68086#(<= main_x 143), 68089#(<= main_x 146), 68088#(<= main_x 145), 68091#(<= main_x 148), 68090#(<= main_x 147), 68093#(<= main_x 150), 68092#(<= main_x 149), 68095#(<= main_x 152), 68094#(<= main_x 151)] [2018-07-23 13:55:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:52,986 INFO L450 AbstractCegarLoop]: Interpolant automaton has 163 states [2018-07-23 13:55:52,988 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2018-07-23 13:55:52,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:55:52,989 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand 163 states. [2018-07-23 13:55:53,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:53,345 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-07-23 13:55:53,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2018-07-23 13:55:53,345 INFO L78 Accepts]: Start accepts. Automaton has 163 states. Word has length 163 [2018-07-23 13:55:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:53,346 INFO L225 Difference]: With dead ends: 167 [2018-07-23 13:55:53,346 INFO L226 Difference]: Without dead ends: 165 [2018-07-23 13:55:53,347 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:55:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-07-23 13:55:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-07-23 13:55:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-07-23 13:55:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 165 transitions. [2018-07-23 13:55:53,349 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 165 transitions. Word has length 163 [2018-07-23 13:55:53,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:53,349 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 165 transitions. [2018-07-23 13:55:53,349 INFO L472 AbstractCegarLoop]: Interpolant automaton has 163 states. [2018-07-23 13:55:53,349 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 165 transitions. [2018-07-23 13:55:53,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-23 13:55:53,350 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:53,350 INFO L357 BasicCegarLoop]: trace histogram [161, 1, 1, 1] [2018-07-23 13:55:53,350 INFO L414 AbstractCegarLoop]: === Iteration 162 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:53,350 INFO L82 PathProgramCache]: Analyzing trace with hash 68725638, now seen corresponding path program 161 times [2018-07-23 13:55:53,350 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 13041 backedges. 0 proven. 13041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:54,058 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:54,058 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [163] total 163 [2018-07-23 13:55:54,059 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:54,059 INFO L185 omatonBuilderFactory]: Interpolants [68865#(<= main_x 95), 68864#(<= main_x 94), 68867#(<= main_x 97), 68866#(<= main_x 96), 68869#(<= main_x 99), 68868#(<= main_x 98), 68871#(<= main_x 101), 68870#(<= main_x 100), 68873#(<= main_x 103), 68872#(<= main_x 102), 68875#(<= main_x 105), 68874#(<= main_x 104), 68877#(<= main_x 107), 68876#(<= main_x 106), 68879#(<= main_x 109), 68878#(<= main_x 108), 68881#(<= main_x 111), 68880#(<= main_x 110), 68883#(<= main_x 113), 68882#(<= main_x 112), 68885#(<= main_x 115), 68884#(<= main_x 114), 68887#(<= main_x 117), 68886#(<= main_x 116), 68889#(<= main_x 119), 68888#(<= main_x 118), 68891#(<= main_x 121), 68890#(<= main_x 120), 68893#(<= main_x 123), 68892#(<= main_x 122), 68895#(<= main_x 125), 68894#(<= main_x 124), 68897#(<= main_x 127), 68896#(<= main_x 126), 68899#(<= main_x 129), 68898#(<= main_x 128), 68901#(<= main_x 131), 68900#(<= main_x 130), 68903#(<= main_x 133), 68902#(<= main_x 132), 68905#(<= main_x 135), 68904#(<= main_x 134), 68907#(<= main_x 137), 68906#(<= main_x 136), 68909#(<= main_x 139), 68908#(<= main_x 138), 68911#(<= main_x 141), 68910#(<= main_x 140), 68913#(<= main_x 143), 68912#(<= main_x 142), 68915#(<= main_x 145), 68914#(<= main_x 144), 68917#(<= main_x 147), 68916#(<= main_x 146), 68919#(<= main_x 149), 68918#(<= main_x 148), 68921#(<= main_x 151), 68920#(<= main_x 150), 68923#(<= main_x 153), 68922#(<= main_x 152), 68925#(<= main_x 155), 68924#(<= main_x 154), 68927#(<= main_x 157), 68926#(<= main_x 156), 68929#(<= main_x 159), 68928#(<= main_x 158), 68931#(<= main_x 161), 68930#(<= main_x 160), 68769#false, 68768#true, 68771#(<= main_x 1), 68770#(<= main_x 0), 68773#(<= main_x 3), 68772#(<= main_x 2), 68775#(<= main_x 5), 68774#(<= main_x 4), 68777#(<= main_x 7), 68776#(<= main_x 6), 68779#(<= main_x 9), 68778#(<= main_x 8), 68781#(<= main_x 11), 68780#(<= main_x 10), 68783#(<= main_x 13), 68782#(<= main_x 12), 68785#(<= main_x 15), 68784#(<= main_x 14), 68787#(<= main_x 17), 68786#(<= main_x 16), 68789#(<= main_x 19), 68788#(<= main_x 18), 68791#(<= main_x 21), 68790#(<= main_x 20), 68793#(<= main_x 23), 68792#(<= main_x 22), 68795#(<= main_x 25), 68794#(<= main_x 24), 68797#(<= main_x 27), 68796#(<= main_x 26), 68799#(<= main_x 29), 68798#(<= main_x 28), 68801#(<= main_x 31), 68800#(<= main_x 30), 68803#(<= main_x 33), 68802#(<= main_x 32), 68805#(<= main_x 35), 68804#(<= main_x 34), 68807#(<= main_x 37), 68806#(<= main_x 36), 68809#(<= main_x 39), 68808#(<= main_x 38), 68811#(<= main_x 41), 68810#(<= main_x 40), 68813#(<= main_x 43), 68812#(<= main_x 42), 68815#(<= main_x 45), 68814#(<= main_x 44), 68817#(<= main_x 47), 68816#(<= main_x 46), 68819#(<= main_x 49), 68818#(<= main_x 48), 68821#(<= main_x 51), 68820#(<= main_x 50), 68823#(<= main_x 53), 68822#(<= main_x 52), 68825#(<= main_x 55), 68824#(<= main_x 54), 68827#(<= main_x 57), 68826#(<= main_x 56), 68829#(<= main_x 59), 68828#(<= main_x 58), 68831#(<= main_x 61), 68830#(<= main_x 60), 68833#(<= main_x 63), 68832#(<= main_x 62), 68835#(<= main_x 65), 68834#(<= main_x 64), 68837#(<= main_x 67), 68836#(<= main_x 66), 68839#(<= main_x 69), 68838#(<= main_x 68), 68841#(<= main_x 71), 68840#(<= main_x 70), 68843#(<= main_x 73), 68842#(<= main_x 72), 68845#(<= main_x 75), 68844#(<= main_x 74), 68847#(<= main_x 77), 68846#(<= main_x 76), 68849#(<= main_x 79), 68848#(<= main_x 78), 68851#(<= main_x 81), 68850#(<= main_x 80), 68853#(<= main_x 83), 68852#(<= main_x 82), 68855#(<= main_x 85), 68854#(<= main_x 84), 68857#(<= main_x 87), 68856#(<= main_x 86), 68859#(<= main_x 89), 68858#(<= main_x 88), 68861#(<= main_x 91), 68860#(<= main_x 90), 68863#(<= main_x 93), 68862#(<= main_x 92)] [2018-07-23 13:55:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 13041 backedges. 0 proven. 13041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:54,060 INFO L450 AbstractCegarLoop]: Interpolant automaton has 164 states [2018-07-23 13:55:54,061 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2018-07-23 13:55:54,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:55:54,061 INFO L87 Difference]: Start difference. First operand 165 states and 165 transitions. Second operand 164 states. [2018-07-23 13:55:54,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:54,189 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2018-07-23 13:55:54,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2018-07-23 13:55:54,189 INFO L78 Accepts]: Start accepts. Automaton has 164 states. Word has length 164 [2018-07-23 13:55:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:54,189 INFO L225 Difference]: With dead ends: 168 [2018-07-23 13:55:54,190 INFO L226 Difference]: Without dead ends: 166 [2018-07-23 13:55:54,190 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:55:54,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-07-23 13:55:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-07-23 13:55:54,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-07-23 13:55:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2018-07-23 13:55:54,193 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 164 [2018-07-23 13:55:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:54,194 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2018-07-23 13:55:54,194 INFO L472 AbstractCegarLoop]: Interpolant automaton has 164 states. [2018-07-23 13:55:54,194 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2018-07-23 13:55:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-23 13:55:54,195 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:54,195 INFO L357 BasicCegarLoop]: trace histogram [162, 1, 1, 1] [2018-07-23 13:55:54,195 INFO L414 AbstractCegarLoop]: === Iteration 163 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:54,195 INFO L82 PathProgramCache]: Analyzing trace with hash 2130490912, now seen corresponding path program 162 times [2018-07-23 13:55:54,195 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:55,034 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:55,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [164] total 164 [2018-07-23 13:55:55,034 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:55,035 INFO L185 omatonBuilderFactory]: Interpolants [69633#(<= main_x 31), 69632#(<= main_x 30), 69635#(<= main_x 33), 69634#(<= main_x 32), 69637#(<= main_x 35), 69636#(<= main_x 34), 69639#(<= main_x 37), 69638#(<= main_x 36), 69641#(<= main_x 39), 69640#(<= main_x 38), 69643#(<= main_x 41), 69642#(<= main_x 40), 69645#(<= main_x 43), 69644#(<= main_x 42), 69647#(<= main_x 45), 69646#(<= main_x 44), 69649#(<= main_x 47), 69648#(<= main_x 46), 69651#(<= main_x 49), 69650#(<= main_x 48), 69653#(<= main_x 51), 69652#(<= main_x 50), 69655#(<= main_x 53), 69654#(<= main_x 52), 69657#(<= main_x 55), 69656#(<= main_x 54), 69659#(<= main_x 57), 69658#(<= main_x 56), 69661#(<= main_x 59), 69660#(<= main_x 58), 69663#(<= main_x 61), 69662#(<= main_x 60), 69665#(<= main_x 63), 69664#(<= main_x 62), 69667#(<= main_x 65), 69666#(<= main_x 64), 69669#(<= main_x 67), 69668#(<= main_x 66), 69671#(<= main_x 69), 69670#(<= main_x 68), 69673#(<= main_x 71), 69672#(<= main_x 70), 69675#(<= main_x 73), 69674#(<= main_x 72), 69677#(<= main_x 75), 69676#(<= main_x 74), 69679#(<= main_x 77), 69678#(<= main_x 76), 69681#(<= main_x 79), 69680#(<= main_x 78), 69683#(<= main_x 81), 69682#(<= main_x 80), 69685#(<= main_x 83), 69684#(<= main_x 82), 69687#(<= main_x 85), 69686#(<= main_x 84), 69689#(<= main_x 87), 69688#(<= main_x 86), 69691#(<= main_x 89), 69690#(<= main_x 88), 69693#(<= main_x 91), 69692#(<= main_x 90), 69695#(<= main_x 93), 69694#(<= main_x 92), 69697#(<= main_x 95), 69696#(<= main_x 94), 69699#(<= main_x 97), 69698#(<= main_x 96), 69701#(<= main_x 99), 69700#(<= main_x 98), 69703#(<= main_x 101), 69702#(<= main_x 100), 69705#(<= main_x 103), 69704#(<= main_x 102), 69707#(<= main_x 105), 69706#(<= main_x 104), 69709#(<= main_x 107), 69708#(<= main_x 106), 69711#(<= main_x 109), 69710#(<= main_x 108), 69713#(<= main_x 111), 69712#(<= main_x 110), 69715#(<= main_x 113), 69714#(<= main_x 112), 69717#(<= main_x 115), 69716#(<= main_x 114), 69719#(<= main_x 117), 69718#(<= main_x 116), 69721#(<= main_x 119), 69720#(<= main_x 118), 69723#(<= main_x 121), 69722#(<= main_x 120), 69725#(<= main_x 123), 69724#(<= main_x 122), 69727#(<= main_x 125), 69726#(<= main_x 124), 69729#(<= main_x 127), 69728#(<= main_x 126), 69731#(<= main_x 129), 69730#(<= main_x 128), 69733#(<= main_x 131), 69732#(<= main_x 130), 69735#(<= main_x 133), 69734#(<= main_x 132), 69737#(<= main_x 135), 69736#(<= main_x 134), 69739#(<= main_x 137), 69738#(<= main_x 136), 69741#(<= main_x 139), 69740#(<= main_x 138), 69743#(<= main_x 141), 69742#(<= main_x 140), 69745#(<= main_x 143), 69744#(<= main_x 142), 69747#(<= main_x 145), 69746#(<= main_x 144), 69749#(<= main_x 147), 69748#(<= main_x 146), 69751#(<= main_x 149), 69750#(<= main_x 148), 69753#(<= main_x 151), 69752#(<= main_x 150), 69755#(<= main_x 153), 69754#(<= main_x 152), 69757#(<= main_x 155), 69756#(<= main_x 154), 69759#(<= main_x 157), 69758#(<= main_x 156), 69761#(<= main_x 159), 69760#(<= main_x 158), 69763#(<= main_x 161), 69762#(<= main_x 160), 69764#(<= main_x 162), 69601#false, 69600#true, 69603#(<= main_x 1), 69602#(<= main_x 0), 69605#(<= main_x 3), 69604#(<= main_x 2), 69607#(<= main_x 5), 69606#(<= main_x 4), 69609#(<= main_x 7), 69608#(<= main_x 6), 69611#(<= main_x 9), 69610#(<= main_x 8), 69613#(<= main_x 11), 69612#(<= main_x 10), 69615#(<= main_x 13), 69614#(<= main_x 12), 69617#(<= main_x 15), 69616#(<= main_x 14), 69619#(<= main_x 17), 69618#(<= main_x 16), 69621#(<= main_x 19), 69620#(<= main_x 18), 69623#(<= main_x 21), 69622#(<= main_x 20), 69625#(<= main_x 23), 69624#(<= main_x 22), 69627#(<= main_x 25), 69626#(<= main_x 24), 69629#(<= main_x 27), 69628#(<= main_x 26), 69631#(<= main_x 29), 69630#(<= main_x 28)] [2018-07-23 13:55:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:55,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 165 states [2018-07-23 13:55:55,037 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2018-07-23 13:55:55,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:55:55,038 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand 165 states. [2018-07-23 13:55:55,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:55,400 INFO L93 Difference]: Finished difference Result 169 states and 169 transitions. [2018-07-23 13:55:55,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2018-07-23 13:55:55,401 INFO L78 Accepts]: Start accepts. Automaton has 165 states. Word has length 165 [2018-07-23 13:55:55,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:55,401 INFO L225 Difference]: With dead ends: 169 [2018-07-23 13:55:55,401 INFO L226 Difference]: Without dead ends: 167 [2018-07-23 13:55:55,403 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:55:55,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-07-23 13:55:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-07-23 13:55:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-07-23 13:55:55,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2018-07-23 13:55:55,405 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 165 [2018-07-23 13:55:55,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:55,405 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2018-07-23 13:55:55,405 INFO L472 AbstractCegarLoop]: Interpolant automaton has 165 states. [2018-07-23 13:55:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2018-07-23 13:55:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-07-23 13:55:55,406 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:55,406 INFO L357 BasicCegarLoop]: trace histogram [163, 1, 1, 1] [2018-07-23 13:55:55,406 INFO L414 AbstractCegarLoop]: === Iteration 164 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:55,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1620704966, now seen corresponding path program 163 times [2018-07-23 13:55:55,406 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 13366 backedges. 0 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,102 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:56,102 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [165] total 165 [2018-07-23 13:55:56,102 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,103 INFO L185 omatonBuilderFactory]: Interpolants [70437#true, 70439#(<= main_x 0), 70438#false, 70441#(<= main_x 2), 70440#(<= main_x 1), 70443#(<= main_x 4), 70442#(<= main_x 3), 70445#(<= main_x 6), 70444#(<= main_x 5), 70447#(<= main_x 8), 70446#(<= main_x 7), 70449#(<= main_x 10), 70448#(<= main_x 9), 70451#(<= main_x 12), 70450#(<= main_x 11), 70453#(<= main_x 14), 70452#(<= main_x 13), 70455#(<= main_x 16), 70454#(<= main_x 15), 70457#(<= main_x 18), 70456#(<= main_x 17), 70459#(<= main_x 20), 70458#(<= main_x 19), 70461#(<= main_x 22), 70460#(<= main_x 21), 70463#(<= main_x 24), 70462#(<= main_x 23), 70465#(<= main_x 26), 70464#(<= main_x 25), 70467#(<= main_x 28), 70466#(<= main_x 27), 70469#(<= main_x 30), 70468#(<= main_x 29), 70471#(<= main_x 32), 70470#(<= main_x 31), 70473#(<= main_x 34), 70472#(<= main_x 33), 70475#(<= main_x 36), 70474#(<= main_x 35), 70477#(<= main_x 38), 70476#(<= main_x 37), 70479#(<= main_x 40), 70478#(<= main_x 39), 70481#(<= main_x 42), 70480#(<= main_x 41), 70483#(<= main_x 44), 70482#(<= main_x 43), 70485#(<= main_x 46), 70484#(<= main_x 45), 70487#(<= main_x 48), 70486#(<= main_x 47), 70489#(<= main_x 50), 70488#(<= main_x 49), 70491#(<= main_x 52), 70490#(<= main_x 51), 70493#(<= main_x 54), 70492#(<= main_x 53), 70495#(<= main_x 56), 70494#(<= main_x 55), 70497#(<= main_x 58), 70496#(<= main_x 57), 70499#(<= main_x 60), 70498#(<= main_x 59), 70501#(<= main_x 62), 70500#(<= main_x 61), 70503#(<= main_x 64), 70502#(<= main_x 63), 70505#(<= main_x 66), 70504#(<= main_x 65), 70507#(<= main_x 68), 70506#(<= main_x 67), 70509#(<= main_x 70), 70508#(<= main_x 69), 70511#(<= main_x 72), 70510#(<= main_x 71), 70513#(<= main_x 74), 70512#(<= main_x 73), 70515#(<= main_x 76), 70514#(<= main_x 75), 70517#(<= main_x 78), 70516#(<= main_x 77), 70519#(<= main_x 80), 70518#(<= main_x 79), 70521#(<= main_x 82), 70520#(<= main_x 81), 70523#(<= main_x 84), 70522#(<= main_x 83), 70525#(<= main_x 86), 70524#(<= main_x 85), 70527#(<= main_x 88), 70526#(<= main_x 87), 70529#(<= main_x 90), 70528#(<= main_x 89), 70531#(<= main_x 92), 70530#(<= main_x 91), 70533#(<= main_x 94), 70532#(<= main_x 93), 70535#(<= main_x 96), 70534#(<= main_x 95), 70537#(<= main_x 98), 70536#(<= main_x 97), 70539#(<= main_x 100), 70538#(<= main_x 99), 70541#(<= main_x 102), 70540#(<= main_x 101), 70543#(<= main_x 104), 70542#(<= main_x 103), 70545#(<= main_x 106), 70544#(<= main_x 105), 70547#(<= main_x 108), 70546#(<= main_x 107), 70549#(<= main_x 110), 70548#(<= main_x 109), 70551#(<= main_x 112), 70550#(<= main_x 111), 70553#(<= main_x 114), 70552#(<= main_x 113), 70555#(<= main_x 116), 70554#(<= main_x 115), 70557#(<= main_x 118), 70556#(<= main_x 117), 70559#(<= main_x 120), 70558#(<= main_x 119), 70561#(<= main_x 122), 70560#(<= main_x 121), 70563#(<= main_x 124), 70562#(<= main_x 123), 70565#(<= main_x 126), 70564#(<= main_x 125), 70567#(<= main_x 128), 70566#(<= main_x 127), 70569#(<= main_x 130), 70568#(<= main_x 129), 70571#(<= main_x 132), 70570#(<= main_x 131), 70573#(<= main_x 134), 70572#(<= main_x 133), 70575#(<= main_x 136), 70574#(<= main_x 135), 70577#(<= main_x 138), 70576#(<= main_x 137), 70579#(<= main_x 140), 70578#(<= main_x 139), 70581#(<= main_x 142), 70580#(<= main_x 141), 70583#(<= main_x 144), 70582#(<= main_x 143), 70585#(<= main_x 146), 70584#(<= main_x 145), 70587#(<= main_x 148), 70586#(<= main_x 147), 70589#(<= main_x 150), 70588#(<= main_x 149), 70591#(<= main_x 152), 70590#(<= main_x 151), 70593#(<= main_x 154), 70592#(<= main_x 153), 70595#(<= main_x 156), 70594#(<= main_x 155), 70597#(<= main_x 158), 70596#(<= main_x 157), 70599#(<= main_x 160), 70598#(<= main_x 159), 70601#(<= main_x 162), 70600#(<= main_x 161), 70602#(<= main_x 163)] [2018-07-23 13:55:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 13366 backedges. 0 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,104 INFO L450 AbstractCegarLoop]: Interpolant automaton has 166 states [2018-07-23 13:55:56,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2018-07-23 13:55:56,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:55:56,107 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 166 states. [2018-07-23 13:55:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:56,709 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2018-07-23 13:55:56,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-07-23 13:55:56,709 INFO L78 Accepts]: Start accepts. Automaton has 166 states. Word has length 166 [2018-07-23 13:55:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:56,710 INFO L225 Difference]: With dead ends: 170 [2018-07-23 13:55:56,710 INFO L226 Difference]: Without dead ends: 168 [2018-07-23 13:55:56,712 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:55:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-07-23 13:55:56,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-07-23 13:55:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-07-23 13:55:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 168 transitions. [2018-07-23 13:55:56,714 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 168 transitions. Word has length 166 [2018-07-23 13:55:56,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:56,714 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 168 transitions. [2018-07-23 13:55:56,714 INFO L472 AbstractCegarLoop]: Interpolant automaton has 166 states. [2018-07-23 13:55:56,714 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 168 transitions. [2018-07-23 13:55:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-23 13:55:56,715 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:56,715 INFO L357 BasicCegarLoop]: trace histogram [164, 1, 1, 1] [2018-07-23 13:55:56,715 INFO L414 AbstractCegarLoop]: === Iteration 165 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:56,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1297757472, now seen corresponding path program 164 times [2018-07-23 13:55:56,715 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:57,591 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:57,591 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [166] total 166 [2018-07-23 13:55:57,591 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:57,591 INFO L185 omatonBuilderFactory]: Interpolants [71425#(<= main_x 144), 71424#(<= main_x 143), 71427#(<= main_x 146), 71426#(<= main_x 145), 71429#(<= main_x 148), 71428#(<= main_x 147), 71431#(<= main_x 150), 71430#(<= main_x 149), 71433#(<= main_x 152), 71432#(<= main_x 151), 71435#(<= main_x 154), 71434#(<= main_x 153), 71437#(<= main_x 156), 71436#(<= main_x 155), 71439#(<= main_x 158), 71438#(<= main_x 157), 71441#(<= main_x 160), 71440#(<= main_x 159), 71443#(<= main_x 162), 71442#(<= main_x 161), 71445#(<= main_x 164), 71444#(<= main_x 163), 71279#true, 71281#(<= main_x 0), 71280#false, 71283#(<= main_x 2), 71282#(<= main_x 1), 71285#(<= main_x 4), 71284#(<= main_x 3), 71287#(<= main_x 6), 71286#(<= main_x 5), 71289#(<= main_x 8), 71288#(<= main_x 7), 71291#(<= main_x 10), 71290#(<= main_x 9), 71293#(<= main_x 12), 71292#(<= main_x 11), 71295#(<= main_x 14), 71294#(<= main_x 13), 71297#(<= main_x 16), 71296#(<= main_x 15), 71299#(<= main_x 18), 71298#(<= main_x 17), 71301#(<= main_x 20), 71300#(<= main_x 19), 71303#(<= main_x 22), 71302#(<= main_x 21), 71305#(<= main_x 24), 71304#(<= main_x 23), 71307#(<= main_x 26), 71306#(<= main_x 25), 71309#(<= main_x 28), 71308#(<= main_x 27), 71311#(<= main_x 30), 71310#(<= main_x 29), 71313#(<= main_x 32), 71312#(<= main_x 31), 71315#(<= main_x 34), 71314#(<= main_x 33), 71317#(<= main_x 36), 71316#(<= main_x 35), 71319#(<= main_x 38), 71318#(<= main_x 37), 71321#(<= main_x 40), 71320#(<= main_x 39), 71323#(<= main_x 42), 71322#(<= main_x 41), 71325#(<= main_x 44), 71324#(<= main_x 43), 71327#(<= main_x 46), 71326#(<= main_x 45), 71329#(<= main_x 48), 71328#(<= main_x 47), 71331#(<= main_x 50), 71330#(<= main_x 49), 71333#(<= main_x 52), 71332#(<= main_x 51), 71335#(<= main_x 54), 71334#(<= main_x 53), 71337#(<= main_x 56), 71336#(<= main_x 55), 71339#(<= main_x 58), 71338#(<= main_x 57), 71341#(<= main_x 60), 71340#(<= main_x 59), 71343#(<= main_x 62), 71342#(<= main_x 61), 71345#(<= main_x 64), 71344#(<= main_x 63), 71347#(<= main_x 66), 71346#(<= main_x 65), 71349#(<= main_x 68), 71348#(<= main_x 67), 71351#(<= main_x 70), 71350#(<= main_x 69), 71353#(<= main_x 72), 71352#(<= main_x 71), 71355#(<= main_x 74), 71354#(<= main_x 73), 71357#(<= main_x 76), 71356#(<= main_x 75), 71359#(<= main_x 78), 71358#(<= main_x 77), 71361#(<= main_x 80), 71360#(<= main_x 79), 71363#(<= main_x 82), 71362#(<= main_x 81), 71365#(<= main_x 84), 71364#(<= main_x 83), 71367#(<= main_x 86), 71366#(<= main_x 85), 71369#(<= main_x 88), 71368#(<= main_x 87), 71371#(<= main_x 90), 71370#(<= main_x 89), 71373#(<= main_x 92), 71372#(<= main_x 91), 71375#(<= main_x 94), 71374#(<= main_x 93), 71377#(<= main_x 96), 71376#(<= main_x 95), 71379#(<= main_x 98), 71378#(<= main_x 97), 71381#(<= main_x 100), 71380#(<= main_x 99), 71383#(<= main_x 102), 71382#(<= main_x 101), 71385#(<= main_x 104), 71384#(<= main_x 103), 71387#(<= main_x 106), 71386#(<= main_x 105), 71389#(<= main_x 108), 71388#(<= main_x 107), 71391#(<= main_x 110), 71390#(<= main_x 109), 71393#(<= main_x 112), 71392#(<= main_x 111), 71395#(<= main_x 114), 71394#(<= main_x 113), 71397#(<= main_x 116), 71396#(<= main_x 115), 71399#(<= main_x 118), 71398#(<= main_x 117), 71401#(<= main_x 120), 71400#(<= main_x 119), 71403#(<= main_x 122), 71402#(<= main_x 121), 71405#(<= main_x 124), 71404#(<= main_x 123), 71407#(<= main_x 126), 71406#(<= main_x 125), 71409#(<= main_x 128), 71408#(<= main_x 127), 71411#(<= main_x 130), 71410#(<= main_x 129), 71413#(<= main_x 132), 71412#(<= main_x 131), 71415#(<= main_x 134), 71414#(<= main_x 133), 71417#(<= main_x 136), 71416#(<= main_x 135), 71419#(<= main_x 138), 71418#(<= main_x 137), 71421#(<= main_x 140), 71420#(<= main_x 139), 71423#(<= main_x 142), 71422#(<= main_x 141)] [2018-07-23 13:55:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:57,593 INFO L450 AbstractCegarLoop]: Interpolant automaton has 167 states [2018-07-23 13:55:57,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2018-07-23 13:55:57,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:55:57,597 INFO L87 Difference]: Start difference. First operand 168 states and 168 transitions. Second operand 167 states. [2018-07-23 13:55:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:58,005 INFO L93 Difference]: Finished difference Result 171 states and 171 transitions. [2018-07-23 13:55:58,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2018-07-23 13:55:58,005 INFO L78 Accepts]: Start accepts. Automaton has 167 states. Word has length 167 [2018-07-23 13:55:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:58,006 INFO L225 Difference]: With dead ends: 171 [2018-07-23 13:55:58,006 INFO L226 Difference]: Without dead ends: 169 [2018-07-23 13:55:58,008 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:55:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-07-23 13:55:58,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-07-23 13:55:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-07-23 13:55:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2018-07-23 13:55:58,011 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 167 [2018-07-23 13:55:58,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:58,011 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2018-07-23 13:55:58,011 INFO L472 AbstractCegarLoop]: Interpolant automaton has 167 states. [2018-07-23 13:55:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2018-07-23 13:55:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-23 13:55:58,012 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:58,012 INFO L357 BasicCegarLoop]: trace histogram [165, 1, 1, 1] [2018-07-23 13:55:58,012 INFO L414 AbstractCegarLoop]: === Iteration 166 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:58,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1575779834, now seen corresponding path program 165 times [2018-07-23 13:55:58,013 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 13695 backedges. 0 proven. 13695 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:58,807 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:58,807 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [167] total 167 [2018-07-23 13:55:58,807 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:58,807 INFO L185 omatonBuilderFactory]: Interpolants [72193#(<= main_x 65), 72192#(<= main_x 64), 72195#(<= main_x 67), 72194#(<= main_x 66), 72197#(<= main_x 69), 72196#(<= main_x 68), 72199#(<= main_x 71), 72198#(<= main_x 70), 72201#(<= main_x 73), 72200#(<= main_x 72), 72203#(<= main_x 75), 72202#(<= main_x 74), 72205#(<= main_x 77), 72204#(<= main_x 76), 72207#(<= main_x 79), 72206#(<= main_x 78), 72209#(<= main_x 81), 72208#(<= main_x 80), 72211#(<= main_x 83), 72210#(<= main_x 82), 72213#(<= main_x 85), 72212#(<= main_x 84), 72215#(<= main_x 87), 72214#(<= main_x 86), 72217#(<= main_x 89), 72216#(<= main_x 88), 72219#(<= main_x 91), 72218#(<= main_x 90), 72221#(<= main_x 93), 72220#(<= main_x 92), 72223#(<= main_x 95), 72222#(<= main_x 94), 72225#(<= main_x 97), 72224#(<= main_x 96), 72227#(<= main_x 99), 72226#(<= main_x 98), 72229#(<= main_x 101), 72228#(<= main_x 100), 72231#(<= main_x 103), 72230#(<= main_x 102), 72233#(<= main_x 105), 72232#(<= main_x 104), 72235#(<= main_x 107), 72234#(<= main_x 106), 72237#(<= main_x 109), 72236#(<= main_x 108), 72239#(<= main_x 111), 72238#(<= main_x 110), 72241#(<= main_x 113), 72240#(<= main_x 112), 72243#(<= main_x 115), 72242#(<= main_x 114), 72245#(<= main_x 117), 72244#(<= main_x 116), 72247#(<= main_x 119), 72246#(<= main_x 118), 72249#(<= main_x 121), 72248#(<= main_x 120), 72251#(<= main_x 123), 72250#(<= main_x 122), 72253#(<= main_x 125), 72252#(<= main_x 124), 72255#(<= main_x 127), 72254#(<= main_x 126), 72257#(<= main_x 129), 72256#(<= main_x 128), 72259#(<= main_x 131), 72258#(<= main_x 130), 72261#(<= main_x 133), 72260#(<= main_x 132), 72263#(<= main_x 135), 72262#(<= main_x 134), 72265#(<= main_x 137), 72264#(<= main_x 136), 72267#(<= main_x 139), 72266#(<= main_x 138), 72269#(<= main_x 141), 72268#(<= main_x 140), 72271#(<= main_x 143), 72270#(<= main_x 142), 72273#(<= main_x 145), 72272#(<= main_x 144), 72275#(<= main_x 147), 72274#(<= main_x 146), 72277#(<= main_x 149), 72276#(<= main_x 148), 72279#(<= main_x 151), 72278#(<= main_x 150), 72281#(<= main_x 153), 72280#(<= main_x 152), 72283#(<= main_x 155), 72282#(<= main_x 154), 72285#(<= main_x 157), 72284#(<= main_x 156), 72287#(<= main_x 159), 72286#(<= main_x 158), 72289#(<= main_x 161), 72288#(<= main_x 160), 72291#(<= main_x 163), 72290#(<= main_x 162), 72293#(<= main_x 165), 72292#(<= main_x 164), 72127#false, 72126#true, 72129#(<= main_x 1), 72128#(<= main_x 0), 72131#(<= main_x 3), 72130#(<= main_x 2), 72133#(<= main_x 5), 72132#(<= main_x 4), 72135#(<= main_x 7), 72134#(<= main_x 6), 72137#(<= main_x 9), 72136#(<= main_x 8), 72139#(<= main_x 11), 72138#(<= main_x 10), 72141#(<= main_x 13), 72140#(<= main_x 12), 72143#(<= main_x 15), 72142#(<= main_x 14), 72145#(<= main_x 17), 72144#(<= main_x 16), 72147#(<= main_x 19), 72146#(<= main_x 18), 72149#(<= main_x 21), 72148#(<= main_x 20), 72151#(<= main_x 23), 72150#(<= main_x 22), 72153#(<= main_x 25), 72152#(<= main_x 24), 72155#(<= main_x 27), 72154#(<= main_x 26), 72157#(<= main_x 29), 72156#(<= main_x 28), 72159#(<= main_x 31), 72158#(<= main_x 30), 72161#(<= main_x 33), 72160#(<= main_x 32), 72163#(<= main_x 35), 72162#(<= main_x 34), 72165#(<= main_x 37), 72164#(<= main_x 36), 72167#(<= main_x 39), 72166#(<= main_x 38), 72169#(<= main_x 41), 72168#(<= main_x 40), 72171#(<= main_x 43), 72170#(<= main_x 42), 72173#(<= main_x 45), 72172#(<= main_x 44), 72175#(<= main_x 47), 72174#(<= main_x 46), 72177#(<= main_x 49), 72176#(<= main_x 48), 72179#(<= main_x 51), 72178#(<= main_x 50), 72181#(<= main_x 53), 72180#(<= main_x 52), 72183#(<= main_x 55), 72182#(<= main_x 54), 72185#(<= main_x 57), 72184#(<= main_x 56), 72187#(<= main_x 59), 72186#(<= main_x 58), 72189#(<= main_x 61), 72188#(<= main_x 60), 72191#(<= main_x 63), 72190#(<= main_x 62)] [2018-07-23 13:55:58,808 INFO L134 CoverageAnalysis]: Checked inductivity of 13695 backedges. 0 proven. 13695 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:58,808 INFO L450 AbstractCegarLoop]: Interpolant automaton has 168 states [2018-07-23 13:55:58,810 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2018-07-23 13:55:58,810 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:55:58,810 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand 168 states. [2018-07-23 13:55:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:59,073 INFO L93 Difference]: Finished difference Result 172 states and 172 transitions. [2018-07-23 13:55:59,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2018-07-23 13:55:59,073 INFO L78 Accepts]: Start accepts. Automaton has 168 states. Word has length 168 [2018-07-23 13:55:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:59,074 INFO L225 Difference]: With dead ends: 172 [2018-07-23 13:55:59,074 INFO L226 Difference]: Without dead ends: 170 [2018-07-23 13:55:59,075 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:55:59,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-07-23 13:55:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-07-23 13:55:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-07-23 13:55:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2018-07-23 13:55:59,077 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 168 [2018-07-23 13:55:59,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:59,078 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2018-07-23 13:55:59,078 INFO L472 AbstractCegarLoop]: Interpolant automaton has 168 states. [2018-07-23 13:55:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2018-07-23 13:55:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-07-23 13:55:59,078 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:59,078 INFO L357 BasicCegarLoop]: trace histogram [166, 1, 1, 1] [2018-07-23 13:55:59,079 INFO L414 AbstractCegarLoop]: === Iteration 167 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1604538464, now seen corresponding path program 166 times [2018-07-23 13:55:59,079 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:59,875 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:59,875 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [168] total 168 [2018-07-23 13:55:59,875 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:59,876 INFO L185 omatonBuilderFactory]: Interpolants [72979#false, 72978#true, 72981#(<= main_x 1), 72980#(<= main_x 0), 72983#(<= main_x 3), 72982#(<= main_x 2), 72985#(<= main_x 5), 72984#(<= main_x 4), 72987#(<= main_x 7), 72986#(<= main_x 6), 72989#(<= main_x 9), 72988#(<= main_x 8), 72991#(<= main_x 11), 72990#(<= main_x 10), 72993#(<= main_x 13), 72992#(<= main_x 12), 72995#(<= main_x 15), 72994#(<= main_x 14), 72997#(<= main_x 17), 72996#(<= main_x 16), 72999#(<= main_x 19), 72998#(<= main_x 18), 73001#(<= main_x 21), 73000#(<= main_x 20), 73003#(<= main_x 23), 73002#(<= main_x 22), 73005#(<= main_x 25), 73004#(<= main_x 24), 73007#(<= main_x 27), 73006#(<= main_x 26), 73009#(<= main_x 29), 73008#(<= main_x 28), 73011#(<= main_x 31), 73010#(<= main_x 30), 73013#(<= main_x 33), 73012#(<= main_x 32), 73015#(<= main_x 35), 73014#(<= main_x 34), 73017#(<= main_x 37), 73016#(<= main_x 36), 73019#(<= main_x 39), 73018#(<= main_x 38), 73021#(<= main_x 41), 73020#(<= main_x 40), 73023#(<= main_x 43), 73022#(<= main_x 42), 73025#(<= main_x 45), 73024#(<= main_x 44), 73027#(<= main_x 47), 73026#(<= main_x 46), 73029#(<= main_x 49), 73028#(<= main_x 48), 73031#(<= main_x 51), 73030#(<= main_x 50), 73033#(<= main_x 53), 73032#(<= main_x 52), 73035#(<= main_x 55), 73034#(<= main_x 54), 73037#(<= main_x 57), 73036#(<= main_x 56), 73039#(<= main_x 59), 73038#(<= main_x 58), 73041#(<= main_x 61), 73040#(<= main_x 60), 73043#(<= main_x 63), 73042#(<= main_x 62), 73045#(<= main_x 65), 73044#(<= main_x 64), 73047#(<= main_x 67), 73046#(<= main_x 66), 73049#(<= main_x 69), 73048#(<= main_x 68), 73051#(<= main_x 71), 73050#(<= main_x 70), 73053#(<= main_x 73), 73052#(<= main_x 72), 73055#(<= main_x 75), 73054#(<= main_x 74), 73057#(<= main_x 77), 73056#(<= main_x 76), 73059#(<= main_x 79), 73058#(<= main_x 78), 73061#(<= main_x 81), 73060#(<= main_x 80), 73063#(<= main_x 83), 73062#(<= main_x 82), 73065#(<= main_x 85), 73064#(<= main_x 84), 73067#(<= main_x 87), 73066#(<= main_x 86), 73069#(<= main_x 89), 73068#(<= main_x 88), 73071#(<= main_x 91), 73070#(<= main_x 90), 73073#(<= main_x 93), 73072#(<= main_x 92), 73075#(<= main_x 95), 73074#(<= main_x 94), 73077#(<= main_x 97), 73076#(<= main_x 96), 73079#(<= main_x 99), 73078#(<= main_x 98), 73081#(<= main_x 101), 73080#(<= main_x 100), 73083#(<= main_x 103), 73082#(<= main_x 102), 73085#(<= main_x 105), 73084#(<= main_x 104), 73087#(<= main_x 107), 73086#(<= main_x 106), 73089#(<= main_x 109), 73088#(<= main_x 108), 73091#(<= main_x 111), 73090#(<= main_x 110), 73093#(<= main_x 113), 73092#(<= main_x 112), 73095#(<= main_x 115), 73094#(<= main_x 114), 73097#(<= main_x 117), 73096#(<= main_x 116), 73099#(<= main_x 119), 73098#(<= main_x 118), 73101#(<= main_x 121), 73100#(<= main_x 120), 73103#(<= main_x 123), 73102#(<= main_x 122), 73105#(<= main_x 125), 73104#(<= main_x 124), 73107#(<= main_x 127), 73106#(<= main_x 126), 73109#(<= main_x 129), 73108#(<= main_x 128), 73111#(<= main_x 131), 73110#(<= main_x 130), 73113#(<= main_x 133), 73112#(<= main_x 132), 73115#(<= main_x 135), 73114#(<= main_x 134), 73117#(<= main_x 137), 73116#(<= main_x 136), 73119#(<= main_x 139), 73118#(<= main_x 138), 73121#(<= main_x 141), 73120#(<= main_x 140), 73123#(<= main_x 143), 73122#(<= main_x 142), 73125#(<= main_x 145), 73124#(<= main_x 144), 73127#(<= main_x 147), 73126#(<= main_x 146), 73129#(<= main_x 149), 73128#(<= main_x 148), 73131#(<= main_x 151), 73130#(<= main_x 150), 73133#(<= main_x 153), 73132#(<= main_x 152), 73135#(<= main_x 155), 73134#(<= main_x 154), 73137#(<= main_x 157), 73136#(<= main_x 156), 73139#(<= main_x 159), 73138#(<= main_x 158), 73141#(<= main_x 161), 73140#(<= main_x 160), 73143#(<= main_x 163), 73142#(<= main_x 162), 73145#(<= main_x 165), 73144#(<= main_x 164), 73146#(<= main_x 166)] [2018-07-23 13:55:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:59,877 INFO L450 AbstractCegarLoop]: Interpolant automaton has 169 states [2018-07-23 13:55:59,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2018-07-23 13:55:59,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:55:59,880 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand 169 states. [2018-07-23 13:56:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:00,584 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2018-07-23 13:56:00,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2018-07-23 13:56:00,584 INFO L78 Accepts]: Start accepts. Automaton has 169 states. Word has length 169 [2018-07-23 13:56:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:00,585 INFO L225 Difference]: With dead ends: 173 [2018-07-23 13:56:00,585 INFO L226 Difference]: Without dead ends: 171 [2018-07-23 13:56:00,587 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:56:00,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-07-23 13:56:00,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-07-23 13:56:00,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-07-23 13:56:00,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2018-07-23 13:56:00,589 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 169 [2018-07-23 13:56:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:00,589 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2018-07-23 13:56:00,590 INFO L472 AbstractCegarLoop]: Interpolant automaton has 169 states. [2018-07-23 13:56:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2018-07-23 13:56:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-23 13:56:00,590 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:00,590 INFO L357 BasicCegarLoop]: trace histogram [167, 1, 1, 1] [2018-07-23 13:56:00,590 INFO L414 AbstractCegarLoop]: === Iteration 168 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:00,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1798911302, now seen corresponding path program 167 times [2018-07-23 13:56:00,590 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 14028 backedges. 0 proven. 14028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:01,435 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:01,435 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [169] total 169 [2018-07-23 13:56:01,435 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:01,436 INFO L185 omatonBuilderFactory]: Interpolants [73985#(<= main_x 148), 73984#(<= main_x 147), 73987#(<= main_x 150), 73986#(<= main_x 149), 73989#(<= main_x 152), 73988#(<= main_x 151), 73991#(<= main_x 154), 73990#(<= main_x 153), 73993#(<= main_x 156), 73992#(<= main_x 155), 73995#(<= main_x 158), 73994#(<= main_x 157), 73997#(<= main_x 160), 73996#(<= main_x 159), 73999#(<= main_x 162), 73998#(<= main_x 161), 74001#(<= main_x 164), 74000#(<= main_x 163), 74003#(<= main_x 166), 74002#(<= main_x 165), 74004#(<= main_x 167), 73835#true, 73837#(<= main_x 0), 73836#false, 73839#(<= main_x 2), 73838#(<= main_x 1), 73841#(<= main_x 4), 73840#(<= main_x 3), 73843#(<= main_x 6), 73842#(<= main_x 5), 73845#(<= main_x 8), 73844#(<= main_x 7), 73847#(<= main_x 10), 73846#(<= main_x 9), 73849#(<= main_x 12), 73848#(<= main_x 11), 73851#(<= main_x 14), 73850#(<= main_x 13), 73853#(<= main_x 16), 73852#(<= main_x 15), 73855#(<= main_x 18), 73854#(<= main_x 17), 73857#(<= main_x 20), 73856#(<= main_x 19), 73859#(<= main_x 22), 73858#(<= main_x 21), 73861#(<= main_x 24), 73860#(<= main_x 23), 73863#(<= main_x 26), 73862#(<= main_x 25), 73865#(<= main_x 28), 73864#(<= main_x 27), 73867#(<= main_x 30), 73866#(<= main_x 29), 73869#(<= main_x 32), 73868#(<= main_x 31), 73871#(<= main_x 34), 73870#(<= main_x 33), 73873#(<= main_x 36), 73872#(<= main_x 35), 73875#(<= main_x 38), 73874#(<= main_x 37), 73877#(<= main_x 40), 73876#(<= main_x 39), 73879#(<= main_x 42), 73878#(<= main_x 41), 73881#(<= main_x 44), 73880#(<= main_x 43), 73883#(<= main_x 46), 73882#(<= main_x 45), 73885#(<= main_x 48), 73884#(<= main_x 47), 73887#(<= main_x 50), 73886#(<= main_x 49), 73889#(<= main_x 52), 73888#(<= main_x 51), 73891#(<= main_x 54), 73890#(<= main_x 53), 73893#(<= main_x 56), 73892#(<= main_x 55), 73895#(<= main_x 58), 73894#(<= main_x 57), 73897#(<= main_x 60), 73896#(<= main_x 59), 73899#(<= main_x 62), 73898#(<= main_x 61), 73901#(<= main_x 64), 73900#(<= main_x 63), 73903#(<= main_x 66), 73902#(<= main_x 65), 73905#(<= main_x 68), 73904#(<= main_x 67), 73907#(<= main_x 70), 73906#(<= main_x 69), 73909#(<= main_x 72), 73908#(<= main_x 71), 73911#(<= main_x 74), 73910#(<= main_x 73), 73913#(<= main_x 76), 73912#(<= main_x 75), 73915#(<= main_x 78), 73914#(<= main_x 77), 73917#(<= main_x 80), 73916#(<= main_x 79), 73919#(<= main_x 82), 73918#(<= main_x 81), 73921#(<= main_x 84), 73920#(<= main_x 83), 73923#(<= main_x 86), 73922#(<= main_x 85), 73925#(<= main_x 88), 73924#(<= main_x 87), 73927#(<= main_x 90), 73926#(<= main_x 89), 73929#(<= main_x 92), 73928#(<= main_x 91), 73931#(<= main_x 94), 73930#(<= main_x 93), 73933#(<= main_x 96), 73932#(<= main_x 95), 73935#(<= main_x 98), 73934#(<= main_x 97), 73937#(<= main_x 100), 73936#(<= main_x 99), 73939#(<= main_x 102), 73938#(<= main_x 101), 73941#(<= main_x 104), 73940#(<= main_x 103), 73943#(<= main_x 106), 73942#(<= main_x 105), 73945#(<= main_x 108), 73944#(<= main_x 107), 73947#(<= main_x 110), 73946#(<= main_x 109), 73949#(<= main_x 112), 73948#(<= main_x 111), 73951#(<= main_x 114), 73950#(<= main_x 113), 73953#(<= main_x 116), 73952#(<= main_x 115), 73955#(<= main_x 118), 73954#(<= main_x 117), 73957#(<= main_x 120), 73956#(<= main_x 119), 73959#(<= main_x 122), 73958#(<= main_x 121), 73961#(<= main_x 124), 73960#(<= main_x 123), 73963#(<= main_x 126), 73962#(<= main_x 125), 73965#(<= main_x 128), 73964#(<= main_x 127), 73967#(<= main_x 130), 73966#(<= main_x 129), 73969#(<= main_x 132), 73968#(<= main_x 131), 73971#(<= main_x 134), 73970#(<= main_x 133), 73973#(<= main_x 136), 73972#(<= main_x 135), 73975#(<= main_x 138), 73974#(<= main_x 137), 73977#(<= main_x 140), 73976#(<= main_x 139), 73979#(<= main_x 142), 73978#(<= main_x 141), 73981#(<= main_x 144), 73980#(<= main_x 143), 73983#(<= main_x 146), 73982#(<= main_x 145)] [2018-07-23 13:56:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 14028 backedges. 0 proven. 14028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:01,437 INFO L450 AbstractCegarLoop]: Interpolant automaton has 170 states [2018-07-23 13:56:01,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2018-07-23 13:56:01,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:56:01,440 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand 170 states. [2018-07-23 13:56:01,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:01,897 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-07-23 13:56:01,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2018-07-23 13:56:01,897 INFO L78 Accepts]: Start accepts. Automaton has 170 states. Word has length 170 [2018-07-23 13:56:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:01,898 INFO L225 Difference]: With dead ends: 174 [2018-07-23 13:56:01,898 INFO L226 Difference]: Without dead ends: 172 [2018-07-23 13:56:01,900 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:56:01,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-07-23 13:56:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-07-23 13:56:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-07-23 13:56:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 172 transitions. [2018-07-23 13:56:01,902 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 172 transitions. Word has length 170 [2018-07-23 13:56:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:01,902 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 172 transitions. [2018-07-23 13:56:01,902 INFO L472 AbstractCegarLoop]: Interpolant automaton has 170 states. [2018-07-23 13:56:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 172 transitions. [2018-07-23 13:56:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-23 13:56:01,903 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:01,903 INFO L357 BasicCegarLoop]: trace histogram [168, 1, 1, 1] [2018-07-23 13:56:01,903 INFO L414 AbstractCegarLoop]: === Iteration 169 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:01,903 INFO L82 PathProgramCache]: Analyzing trace with hash -68328352, now seen corresponding path program 168 times [2018-07-23 13:56:01,903 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:02,748 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:02,748 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [170] total 170 [2018-07-23 13:56:02,748 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:02,748 INFO L185 omatonBuilderFactory]: Interpolants [74753#(<= main_x 54), 74752#(<= main_x 53), 74755#(<= main_x 56), 74754#(<= main_x 55), 74757#(<= main_x 58), 74756#(<= main_x 57), 74759#(<= main_x 60), 74758#(<= main_x 59), 74761#(<= main_x 62), 74760#(<= main_x 61), 74763#(<= main_x 64), 74762#(<= main_x 63), 74765#(<= main_x 66), 74764#(<= main_x 65), 74767#(<= main_x 68), 74766#(<= main_x 67), 74769#(<= main_x 70), 74768#(<= main_x 69), 74771#(<= main_x 72), 74770#(<= main_x 71), 74773#(<= main_x 74), 74772#(<= main_x 73), 74775#(<= main_x 76), 74774#(<= main_x 75), 74777#(<= main_x 78), 74776#(<= main_x 77), 74779#(<= main_x 80), 74778#(<= main_x 79), 74781#(<= main_x 82), 74780#(<= main_x 81), 74783#(<= main_x 84), 74782#(<= main_x 83), 74785#(<= main_x 86), 74784#(<= main_x 85), 74787#(<= main_x 88), 74786#(<= main_x 87), 74789#(<= main_x 90), 74788#(<= main_x 89), 74791#(<= main_x 92), 74790#(<= main_x 91), 74793#(<= main_x 94), 74792#(<= main_x 93), 74795#(<= main_x 96), 74794#(<= main_x 95), 74797#(<= main_x 98), 74796#(<= main_x 97), 74799#(<= main_x 100), 74798#(<= main_x 99), 74801#(<= main_x 102), 74800#(<= main_x 101), 74803#(<= main_x 104), 74802#(<= main_x 103), 74805#(<= main_x 106), 74804#(<= main_x 105), 74807#(<= main_x 108), 74806#(<= main_x 107), 74809#(<= main_x 110), 74808#(<= main_x 109), 74811#(<= main_x 112), 74810#(<= main_x 111), 74813#(<= main_x 114), 74812#(<= main_x 113), 74815#(<= main_x 116), 74814#(<= main_x 115), 74817#(<= main_x 118), 74816#(<= main_x 117), 74819#(<= main_x 120), 74818#(<= main_x 119), 74821#(<= main_x 122), 74820#(<= main_x 121), 74823#(<= main_x 124), 74822#(<= main_x 123), 74825#(<= main_x 126), 74824#(<= main_x 125), 74827#(<= main_x 128), 74826#(<= main_x 127), 74829#(<= main_x 130), 74828#(<= main_x 129), 74831#(<= main_x 132), 74830#(<= main_x 131), 74833#(<= main_x 134), 74832#(<= main_x 133), 74835#(<= main_x 136), 74834#(<= main_x 135), 74837#(<= main_x 138), 74836#(<= main_x 137), 74839#(<= main_x 140), 74838#(<= main_x 139), 74841#(<= main_x 142), 74840#(<= main_x 141), 74843#(<= main_x 144), 74842#(<= main_x 143), 74845#(<= main_x 146), 74844#(<= main_x 145), 74847#(<= main_x 148), 74846#(<= main_x 147), 74849#(<= main_x 150), 74848#(<= main_x 149), 74851#(<= main_x 152), 74850#(<= main_x 151), 74853#(<= main_x 154), 74852#(<= main_x 153), 74855#(<= main_x 156), 74854#(<= main_x 155), 74857#(<= main_x 158), 74856#(<= main_x 157), 74859#(<= main_x 160), 74858#(<= main_x 159), 74861#(<= main_x 162), 74860#(<= main_x 161), 74863#(<= main_x 164), 74862#(<= main_x 163), 74865#(<= main_x 166), 74864#(<= main_x 165), 74867#(<= main_x 168), 74866#(<= main_x 167), 74697#true, 74699#(<= main_x 0), 74698#false, 74701#(<= main_x 2), 74700#(<= main_x 1), 74703#(<= main_x 4), 74702#(<= main_x 3), 74705#(<= main_x 6), 74704#(<= main_x 5), 74707#(<= main_x 8), 74706#(<= main_x 7), 74709#(<= main_x 10), 74708#(<= main_x 9), 74711#(<= main_x 12), 74710#(<= main_x 11), 74713#(<= main_x 14), 74712#(<= main_x 13), 74715#(<= main_x 16), 74714#(<= main_x 15), 74717#(<= main_x 18), 74716#(<= main_x 17), 74719#(<= main_x 20), 74718#(<= main_x 19), 74721#(<= main_x 22), 74720#(<= main_x 21), 74723#(<= main_x 24), 74722#(<= main_x 23), 74725#(<= main_x 26), 74724#(<= main_x 25), 74727#(<= main_x 28), 74726#(<= main_x 27), 74729#(<= main_x 30), 74728#(<= main_x 29), 74731#(<= main_x 32), 74730#(<= main_x 31), 74733#(<= main_x 34), 74732#(<= main_x 33), 74735#(<= main_x 36), 74734#(<= main_x 35), 74737#(<= main_x 38), 74736#(<= main_x 37), 74739#(<= main_x 40), 74738#(<= main_x 39), 74741#(<= main_x 42), 74740#(<= main_x 41), 74743#(<= main_x 44), 74742#(<= main_x 43), 74745#(<= main_x 46), 74744#(<= main_x 45), 74747#(<= main_x 48), 74746#(<= main_x 47), 74749#(<= main_x 50), 74748#(<= main_x 49), 74751#(<= main_x 52), 74750#(<= main_x 51)] [2018-07-23 13:56:02,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:02,749 INFO L450 AbstractCegarLoop]: Interpolant automaton has 171 states [2018-07-23 13:56:02,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 171 interpolants. [2018-07-23 13:56:02,752 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:56:02,752 INFO L87 Difference]: Start difference. First operand 172 states and 172 transitions. Second operand 171 states. [2018-07-23 13:56:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:03,138 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2018-07-23 13:56:03,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2018-07-23 13:56:03,138 INFO L78 Accepts]: Start accepts. Automaton has 171 states. Word has length 171 [2018-07-23 13:56:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:03,139 INFO L225 Difference]: With dead ends: 175 [2018-07-23 13:56:03,139 INFO L226 Difference]: Without dead ends: 173 [2018-07-23 13:56:03,140 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:56:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-07-23 13:56:03,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-07-23 13:56:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-07-23 13:56:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 173 transitions. [2018-07-23 13:56:03,142 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 173 transitions. Word has length 171 [2018-07-23 13:56:03,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:03,143 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 173 transitions. [2018-07-23 13:56:03,143 INFO L472 AbstractCegarLoop]: Interpolant automaton has 171 states. [2018-07-23 13:56:03,143 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 173 transitions. [2018-07-23 13:56:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-07-23 13:56:03,143 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:03,143 INFO L357 BasicCegarLoop]: trace histogram [169, 1, 1, 1] [2018-07-23 13:56:03,143 INFO L414 AbstractCegarLoop]: === Iteration 170 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:03,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2118182778, now seen corresponding path program 169 times [2018-07-23 13:56:03,144 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 14365 backedges. 0 proven. 14365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:03,981 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:03,981 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [171] total 171 [2018-07-23 13:56:03,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:03,981 INFO L185 omatonBuilderFactory]: Interpolants [75565#false, 75564#true, 75567#(<= main_x 1), 75566#(<= main_x 0), 75569#(<= main_x 3), 75568#(<= main_x 2), 75571#(<= main_x 5), 75570#(<= main_x 4), 75573#(<= main_x 7), 75572#(<= main_x 6), 75575#(<= main_x 9), 75574#(<= main_x 8), 75577#(<= main_x 11), 75576#(<= main_x 10), 75579#(<= main_x 13), 75578#(<= main_x 12), 75581#(<= main_x 15), 75580#(<= main_x 14), 75583#(<= main_x 17), 75582#(<= main_x 16), 75585#(<= main_x 19), 75584#(<= main_x 18), 75587#(<= main_x 21), 75586#(<= main_x 20), 75589#(<= main_x 23), 75588#(<= main_x 22), 75591#(<= main_x 25), 75590#(<= main_x 24), 75593#(<= main_x 27), 75592#(<= main_x 26), 75595#(<= main_x 29), 75594#(<= main_x 28), 75597#(<= main_x 31), 75596#(<= main_x 30), 75599#(<= main_x 33), 75598#(<= main_x 32), 75601#(<= main_x 35), 75600#(<= main_x 34), 75603#(<= main_x 37), 75602#(<= main_x 36), 75605#(<= main_x 39), 75604#(<= main_x 38), 75607#(<= main_x 41), 75606#(<= main_x 40), 75609#(<= main_x 43), 75608#(<= main_x 42), 75611#(<= main_x 45), 75610#(<= main_x 44), 75613#(<= main_x 47), 75612#(<= main_x 46), 75615#(<= main_x 49), 75614#(<= main_x 48), 75617#(<= main_x 51), 75616#(<= main_x 50), 75619#(<= main_x 53), 75618#(<= main_x 52), 75621#(<= main_x 55), 75620#(<= main_x 54), 75623#(<= main_x 57), 75622#(<= main_x 56), 75625#(<= main_x 59), 75624#(<= main_x 58), 75627#(<= main_x 61), 75626#(<= main_x 60), 75629#(<= main_x 63), 75628#(<= main_x 62), 75631#(<= main_x 65), 75630#(<= main_x 64), 75633#(<= main_x 67), 75632#(<= main_x 66), 75635#(<= main_x 69), 75634#(<= main_x 68), 75637#(<= main_x 71), 75636#(<= main_x 70), 75639#(<= main_x 73), 75638#(<= main_x 72), 75641#(<= main_x 75), 75640#(<= main_x 74), 75643#(<= main_x 77), 75642#(<= main_x 76), 75645#(<= main_x 79), 75644#(<= main_x 78), 75647#(<= main_x 81), 75646#(<= main_x 80), 75649#(<= main_x 83), 75648#(<= main_x 82), 75651#(<= main_x 85), 75650#(<= main_x 84), 75653#(<= main_x 87), 75652#(<= main_x 86), 75655#(<= main_x 89), 75654#(<= main_x 88), 75657#(<= main_x 91), 75656#(<= main_x 90), 75659#(<= main_x 93), 75658#(<= main_x 92), 75661#(<= main_x 95), 75660#(<= main_x 94), 75663#(<= main_x 97), 75662#(<= main_x 96), 75665#(<= main_x 99), 75664#(<= main_x 98), 75667#(<= main_x 101), 75666#(<= main_x 100), 75669#(<= main_x 103), 75668#(<= main_x 102), 75671#(<= main_x 105), 75670#(<= main_x 104), 75673#(<= main_x 107), 75672#(<= main_x 106), 75675#(<= main_x 109), 75674#(<= main_x 108), 75677#(<= main_x 111), 75676#(<= main_x 110), 75679#(<= main_x 113), 75678#(<= main_x 112), 75681#(<= main_x 115), 75680#(<= main_x 114), 75683#(<= main_x 117), 75682#(<= main_x 116), 75685#(<= main_x 119), 75684#(<= main_x 118), 75687#(<= main_x 121), 75686#(<= main_x 120), 75689#(<= main_x 123), 75688#(<= main_x 122), 75691#(<= main_x 125), 75690#(<= main_x 124), 75693#(<= main_x 127), 75692#(<= main_x 126), 75695#(<= main_x 129), 75694#(<= main_x 128), 75697#(<= main_x 131), 75696#(<= main_x 130), 75699#(<= main_x 133), 75698#(<= main_x 132), 75701#(<= main_x 135), 75700#(<= main_x 134), 75703#(<= main_x 137), 75702#(<= main_x 136), 75705#(<= main_x 139), 75704#(<= main_x 138), 75707#(<= main_x 141), 75706#(<= main_x 140), 75709#(<= main_x 143), 75708#(<= main_x 142), 75711#(<= main_x 145), 75710#(<= main_x 144), 75713#(<= main_x 147), 75712#(<= main_x 146), 75715#(<= main_x 149), 75714#(<= main_x 148), 75717#(<= main_x 151), 75716#(<= main_x 150), 75719#(<= main_x 153), 75718#(<= main_x 152), 75721#(<= main_x 155), 75720#(<= main_x 154), 75723#(<= main_x 157), 75722#(<= main_x 156), 75725#(<= main_x 159), 75724#(<= main_x 158), 75727#(<= main_x 161), 75726#(<= main_x 160), 75729#(<= main_x 163), 75728#(<= main_x 162), 75731#(<= main_x 165), 75730#(<= main_x 164), 75733#(<= main_x 167), 75732#(<= main_x 166), 75735#(<= main_x 169), 75734#(<= main_x 168)] [2018-07-23 13:56:03,982 INFO L134 CoverageAnalysis]: Checked inductivity of 14365 backedges. 0 proven. 14365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:03,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 172 states [2018-07-23 13:56:03,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2018-07-23 13:56:03,985 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:56:03,986 INFO L87 Difference]: Start difference. First operand 173 states and 173 transitions. Second operand 172 states. [2018-07-23 13:56:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:04,669 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2018-07-23 13:56:04,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2018-07-23 13:56:04,669 INFO L78 Accepts]: Start accepts. Automaton has 172 states. Word has length 172 [2018-07-23 13:56:04,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:04,670 INFO L225 Difference]: With dead ends: 176 [2018-07-23 13:56:04,670 INFO L226 Difference]: Without dead ends: 174 [2018-07-23 13:56:04,671 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:56:04,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-07-23 13:56:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-07-23 13:56:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-07-23 13:56:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2018-07-23 13:56:04,674 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 172 [2018-07-23 13:56:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:04,674 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2018-07-23 13:56:04,674 INFO L472 AbstractCegarLoop]: Interpolant automaton has 172 states. [2018-07-23 13:56:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2018-07-23 13:56:04,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-23 13:56:04,675 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:04,675 INFO L357 BasicCegarLoop]: trace histogram [170, 1, 1, 1] [2018-07-23 13:56:04,675 INFO L414 AbstractCegarLoop]: === Iteration 171 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:04,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1239160544, now seen corresponding path program 170 times [2018-07-23 13:56:04,675 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:05,531 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:05,531 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [172] total 172 [2018-07-23 13:56:05,531 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:05,532 INFO L185 omatonBuilderFactory]: Interpolants [76545#(<= main_x 107), 76544#(<= main_x 106), 76547#(<= main_x 109), 76546#(<= main_x 108), 76549#(<= main_x 111), 76548#(<= main_x 110), 76551#(<= main_x 113), 76550#(<= main_x 112), 76553#(<= main_x 115), 76552#(<= main_x 114), 76555#(<= main_x 117), 76554#(<= main_x 116), 76557#(<= main_x 119), 76556#(<= main_x 118), 76559#(<= main_x 121), 76558#(<= main_x 120), 76561#(<= main_x 123), 76560#(<= main_x 122), 76563#(<= main_x 125), 76562#(<= main_x 124), 76565#(<= main_x 127), 76564#(<= main_x 126), 76567#(<= main_x 129), 76566#(<= main_x 128), 76569#(<= main_x 131), 76568#(<= main_x 130), 76571#(<= main_x 133), 76570#(<= main_x 132), 76573#(<= main_x 135), 76572#(<= main_x 134), 76575#(<= main_x 137), 76574#(<= main_x 136), 76577#(<= main_x 139), 76576#(<= main_x 138), 76579#(<= main_x 141), 76578#(<= main_x 140), 76581#(<= main_x 143), 76580#(<= main_x 142), 76583#(<= main_x 145), 76582#(<= main_x 144), 76585#(<= main_x 147), 76584#(<= main_x 146), 76587#(<= main_x 149), 76586#(<= main_x 148), 76589#(<= main_x 151), 76588#(<= main_x 150), 76591#(<= main_x 153), 76590#(<= main_x 152), 76593#(<= main_x 155), 76592#(<= main_x 154), 76595#(<= main_x 157), 76594#(<= main_x 156), 76597#(<= main_x 159), 76596#(<= main_x 158), 76599#(<= main_x 161), 76598#(<= main_x 160), 76601#(<= main_x 163), 76600#(<= main_x 162), 76603#(<= main_x 165), 76602#(<= main_x 164), 76605#(<= main_x 167), 76604#(<= main_x 166), 76607#(<= main_x 169), 76606#(<= main_x 168), 76608#(<= main_x 170), 76437#false, 76436#true, 76439#(<= main_x 1), 76438#(<= main_x 0), 76441#(<= main_x 3), 76440#(<= main_x 2), 76443#(<= main_x 5), 76442#(<= main_x 4), 76445#(<= main_x 7), 76444#(<= main_x 6), 76447#(<= main_x 9), 76446#(<= main_x 8), 76449#(<= main_x 11), 76448#(<= main_x 10), 76451#(<= main_x 13), 76450#(<= main_x 12), 76453#(<= main_x 15), 76452#(<= main_x 14), 76455#(<= main_x 17), 76454#(<= main_x 16), 76457#(<= main_x 19), 76456#(<= main_x 18), 76459#(<= main_x 21), 76458#(<= main_x 20), 76461#(<= main_x 23), 76460#(<= main_x 22), 76463#(<= main_x 25), 76462#(<= main_x 24), 76465#(<= main_x 27), 76464#(<= main_x 26), 76467#(<= main_x 29), 76466#(<= main_x 28), 76469#(<= main_x 31), 76468#(<= main_x 30), 76471#(<= main_x 33), 76470#(<= main_x 32), 76473#(<= main_x 35), 76472#(<= main_x 34), 76475#(<= main_x 37), 76474#(<= main_x 36), 76477#(<= main_x 39), 76476#(<= main_x 38), 76479#(<= main_x 41), 76478#(<= main_x 40), 76481#(<= main_x 43), 76480#(<= main_x 42), 76483#(<= main_x 45), 76482#(<= main_x 44), 76485#(<= main_x 47), 76484#(<= main_x 46), 76487#(<= main_x 49), 76486#(<= main_x 48), 76489#(<= main_x 51), 76488#(<= main_x 50), 76491#(<= main_x 53), 76490#(<= main_x 52), 76493#(<= main_x 55), 76492#(<= main_x 54), 76495#(<= main_x 57), 76494#(<= main_x 56), 76497#(<= main_x 59), 76496#(<= main_x 58), 76499#(<= main_x 61), 76498#(<= main_x 60), 76501#(<= main_x 63), 76500#(<= main_x 62), 76503#(<= main_x 65), 76502#(<= main_x 64), 76505#(<= main_x 67), 76504#(<= main_x 66), 76507#(<= main_x 69), 76506#(<= main_x 68), 76509#(<= main_x 71), 76508#(<= main_x 70), 76511#(<= main_x 73), 76510#(<= main_x 72), 76513#(<= main_x 75), 76512#(<= main_x 74), 76515#(<= main_x 77), 76514#(<= main_x 76), 76517#(<= main_x 79), 76516#(<= main_x 78), 76519#(<= main_x 81), 76518#(<= main_x 80), 76521#(<= main_x 83), 76520#(<= main_x 82), 76523#(<= main_x 85), 76522#(<= main_x 84), 76525#(<= main_x 87), 76524#(<= main_x 86), 76527#(<= main_x 89), 76526#(<= main_x 88), 76529#(<= main_x 91), 76528#(<= main_x 90), 76531#(<= main_x 93), 76530#(<= main_x 92), 76533#(<= main_x 95), 76532#(<= main_x 94), 76535#(<= main_x 97), 76534#(<= main_x 96), 76537#(<= main_x 99), 76536#(<= main_x 98), 76539#(<= main_x 101), 76538#(<= main_x 100), 76541#(<= main_x 103), 76540#(<= main_x 102), 76543#(<= main_x 105), 76542#(<= main_x 104)] [2018-07-23 13:56:05,533 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:05,533 INFO L450 AbstractCegarLoop]: Interpolant automaton has 173 states [2018-07-23 13:56:05,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2018-07-23 13:56:05,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:56:05,537 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 173 states. [2018-07-23 13:56:05,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:05,757 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2018-07-23 13:56:05,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2018-07-23 13:56:05,757 INFO L78 Accepts]: Start accepts. Automaton has 173 states. Word has length 173 [2018-07-23 13:56:05,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:05,758 INFO L225 Difference]: With dead ends: 177 [2018-07-23 13:56:05,758 INFO L226 Difference]: Without dead ends: 175 [2018-07-23 13:56:05,760 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:56:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-07-23 13:56:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-07-23 13:56:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-07-23 13:56:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 175 transitions. [2018-07-23 13:56:05,763 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 175 transitions. Word has length 173 [2018-07-23 13:56:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:05,763 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 175 transitions. [2018-07-23 13:56:05,763 INFO L472 AbstractCegarLoop]: Interpolant automaton has 173 states. [2018-07-23 13:56:05,764 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 175 transitions. [2018-07-23 13:56:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-23 13:56:05,764 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:05,764 INFO L357 BasicCegarLoop]: trace histogram [171, 1, 1, 1] [2018-07-23 13:56:05,764 INFO L414 AbstractCegarLoop]: === Iteration 172 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:05,764 INFO L82 PathProgramCache]: Analyzing trace with hash 240724934, now seen corresponding path program 171 times [2018-07-23 13:56:05,765 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 14706 backedges. 0 proven. 14706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:06,637 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:06,637 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [173] total 173 [2018-07-23 13:56:06,637 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:06,638 INFO L185 omatonBuilderFactory]: Interpolants [77313#true, 77315#(<= main_x 0), 77314#false, 77317#(<= main_x 2), 77316#(<= main_x 1), 77319#(<= main_x 4), 77318#(<= main_x 3), 77321#(<= main_x 6), 77320#(<= main_x 5), 77323#(<= main_x 8), 77322#(<= main_x 7), 77325#(<= main_x 10), 77324#(<= main_x 9), 77327#(<= main_x 12), 77326#(<= main_x 11), 77329#(<= main_x 14), 77328#(<= main_x 13), 77331#(<= main_x 16), 77330#(<= main_x 15), 77333#(<= main_x 18), 77332#(<= main_x 17), 77335#(<= main_x 20), 77334#(<= main_x 19), 77337#(<= main_x 22), 77336#(<= main_x 21), 77339#(<= main_x 24), 77338#(<= main_x 23), 77341#(<= main_x 26), 77340#(<= main_x 25), 77343#(<= main_x 28), 77342#(<= main_x 27), 77345#(<= main_x 30), 77344#(<= main_x 29), 77347#(<= main_x 32), 77346#(<= main_x 31), 77349#(<= main_x 34), 77348#(<= main_x 33), 77351#(<= main_x 36), 77350#(<= main_x 35), 77353#(<= main_x 38), 77352#(<= main_x 37), 77355#(<= main_x 40), 77354#(<= main_x 39), 77357#(<= main_x 42), 77356#(<= main_x 41), 77359#(<= main_x 44), 77358#(<= main_x 43), 77361#(<= main_x 46), 77360#(<= main_x 45), 77363#(<= main_x 48), 77362#(<= main_x 47), 77365#(<= main_x 50), 77364#(<= main_x 49), 77367#(<= main_x 52), 77366#(<= main_x 51), 77369#(<= main_x 54), 77368#(<= main_x 53), 77371#(<= main_x 56), 77370#(<= main_x 55), 77373#(<= main_x 58), 77372#(<= main_x 57), 77375#(<= main_x 60), 77374#(<= main_x 59), 77377#(<= main_x 62), 77376#(<= main_x 61), 77379#(<= main_x 64), 77378#(<= main_x 63), 77381#(<= main_x 66), 77380#(<= main_x 65), 77383#(<= main_x 68), 77382#(<= main_x 67), 77385#(<= main_x 70), 77384#(<= main_x 69), 77387#(<= main_x 72), 77386#(<= main_x 71), 77389#(<= main_x 74), 77388#(<= main_x 73), 77391#(<= main_x 76), 77390#(<= main_x 75), 77393#(<= main_x 78), 77392#(<= main_x 77), 77395#(<= main_x 80), 77394#(<= main_x 79), 77397#(<= main_x 82), 77396#(<= main_x 81), 77399#(<= main_x 84), 77398#(<= main_x 83), 77401#(<= main_x 86), 77400#(<= main_x 85), 77403#(<= main_x 88), 77402#(<= main_x 87), 77405#(<= main_x 90), 77404#(<= main_x 89), 77407#(<= main_x 92), 77406#(<= main_x 91), 77409#(<= main_x 94), 77408#(<= main_x 93), 77411#(<= main_x 96), 77410#(<= main_x 95), 77413#(<= main_x 98), 77412#(<= main_x 97), 77415#(<= main_x 100), 77414#(<= main_x 99), 77417#(<= main_x 102), 77416#(<= main_x 101), 77419#(<= main_x 104), 77418#(<= main_x 103), 77421#(<= main_x 106), 77420#(<= main_x 105), 77423#(<= main_x 108), 77422#(<= main_x 107), 77425#(<= main_x 110), 77424#(<= main_x 109), 77427#(<= main_x 112), 77426#(<= main_x 111), 77429#(<= main_x 114), 77428#(<= main_x 113), 77431#(<= main_x 116), 77430#(<= main_x 115), 77433#(<= main_x 118), 77432#(<= main_x 117), 77435#(<= main_x 120), 77434#(<= main_x 119), 77437#(<= main_x 122), 77436#(<= main_x 121), 77439#(<= main_x 124), 77438#(<= main_x 123), 77441#(<= main_x 126), 77440#(<= main_x 125), 77443#(<= main_x 128), 77442#(<= main_x 127), 77445#(<= main_x 130), 77444#(<= main_x 129), 77447#(<= main_x 132), 77446#(<= main_x 131), 77449#(<= main_x 134), 77448#(<= main_x 133), 77451#(<= main_x 136), 77450#(<= main_x 135), 77453#(<= main_x 138), 77452#(<= main_x 137), 77455#(<= main_x 140), 77454#(<= main_x 139), 77457#(<= main_x 142), 77456#(<= main_x 141), 77459#(<= main_x 144), 77458#(<= main_x 143), 77461#(<= main_x 146), 77460#(<= main_x 145), 77463#(<= main_x 148), 77462#(<= main_x 147), 77465#(<= main_x 150), 77464#(<= main_x 149), 77467#(<= main_x 152), 77466#(<= main_x 151), 77469#(<= main_x 154), 77468#(<= main_x 153), 77471#(<= main_x 156), 77470#(<= main_x 155), 77473#(<= main_x 158), 77472#(<= main_x 157), 77475#(<= main_x 160), 77474#(<= main_x 159), 77477#(<= main_x 162), 77476#(<= main_x 161), 77479#(<= main_x 164), 77478#(<= main_x 163), 77481#(<= main_x 166), 77480#(<= main_x 165), 77483#(<= main_x 168), 77482#(<= main_x 167), 77485#(<= main_x 170), 77484#(<= main_x 169), 77486#(<= main_x 171)] [2018-07-23 13:56:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 14706 backedges. 0 proven. 14706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:06,639 INFO L450 AbstractCegarLoop]: Interpolant automaton has 174 states [2018-07-23 13:56:06,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2018-07-23 13:56:06,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:56:06,642 INFO L87 Difference]: Start difference. First operand 175 states and 175 transitions. Second operand 174 states. [2018-07-23 13:56:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:07,429 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2018-07-23 13:56:07,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2018-07-23 13:56:07,429 INFO L78 Accepts]: Start accepts. Automaton has 174 states. Word has length 174 [2018-07-23 13:56:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:07,429 INFO L225 Difference]: With dead ends: 178 [2018-07-23 13:56:07,430 INFO L226 Difference]: Without dead ends: 176 [2018-07-23 13:56:07,431 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:56:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-07-23 13:56:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-07-23 13:56:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-07-23 13:56:07,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-07-23 13:56:07,435 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 174 [2018-07-23 13:56:07,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:07,435 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-07-23 13:56:07,435 INFO L472 AbstractCegarLoop]: Interpolant automaton has 174 states. [2018-07-23 13:56:07,435 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-07-23 13:56:07,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-23 13:56:07,436 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:07,436 INFO L357 BasicCegarLoop]: trace histogram [172, 1, 1, 1] [2018-07-23 13:56:07,436 INFO L414 AbstractCegarLoop]: === Iteration 173 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:07,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1127465504, now seen corresponding path program 172 times [2018-07-23 13:56:07,436 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:08,369 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:08,369 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [174] total 174 [2018-07-23 13:56:08,370 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:08,370 INFO L185 omatonBuilderFactory]: Interpolants [78337#(<= main_x 140), 78336#(<= main_x 139), 78339#(<= main_x 142), 78338#(<= main_x 141), 78341#(<= main_x 144), 78340#(<= main_x 143), 78343#(<= main_x 146), 78342#(<= main_x 145), 78345#(<= main_x 148), 78344#(<= main_x 147), 78347#(<= main_x 150), 78346#(<= main_x 149), 78349#(<= main_x 152), 78348#(<= main_x 151), 78351#(<= main_x 154), 78350#(<= main_x 153), 78353#(<= main_x 156), 78352#(<= main_x 155), 78355#(<= main_x 158), 78354#(<= main_x 157), 78357#(<= main_x 160), 78356#(<= main_x 159), 78359#(<= main_x 162), 78358#(<= main_x 161), 78361#(<= main_x 164), 78360#(<= main_x 163), 78363#(<= main_x 166), 78362#(<= main_x 165), 78365#(<= main_x 168), 78364#(<= main_x 167), 78367#(<= main_x 170), 78366#(<= main_x 169), 78369#(<= main_x 172), 78368#(<= main_x 171), 78195#true, 78197#(<= main_x 0), 78196#false, 78199#(<= main_x 2), 78198#(<= main_x 1), 78201#(<= main_x 4), 78200#(<= main_x 3), 78203#(<= main_x 6), 78202#(<= main_x 5), 78205#(<= main_x 8), 78204#(<= main_x 7), 78207#(<= main_x 10), 78206#(<= main_x 9), 78209#(<= main_x 12), 78208#(<= main_x 11), 78211#(<= main_x 14), 78210#(<= main_x 13), 78213#(<= main_x 16), 78212#(<= main_x 15), 78215#(<= main_x 18), 78214#(<= main_x 17), 78217#(<= main_x 20), 78216#(<= main_x 19), 78219#(<= main_x 22), 78218#(<= main_x 21), 78221#(<= main_x 24), 78220#(<= main_x 23), 78223#(<= main_x 26), 78222#(<= main_x 25), 78225#(<= main_x 28), 78224#(<= main_x 27), 78227#(<= main_x 30), 78226#(<= main_x 29), 78229#(<= main_x 32), 78228#(<= main_x 31), 78231#(<= main_x 34), 78230#(<= main_x 33), 78233#(<= main_x 36), 78232#(<= main_x 35), 78235#(<= main_x 38), 78234#(<= main_x 37), 78237#(<= main_x 40), 78236#(<= main_x 39), 78239#(<= main_x 42), 78238#(<= main_x 41), 78241#(<= main_x 44), 78240#(<= main_x 43), 78243#(<= main_x 46), 78242#(<= main_x 45), 78245#(<= main_x 48), 78244#(<= main_x 47), 78247#(<= main_x 50), 78246#(<= main_x 49), 78249#(<= main_x 52), 78248#(<= main_x 51), 78251#(<= main_x 54), 78250#(<= main_x 53), 78253#(<= main_x 56), 78252#(<= main_x 55), 78255#(<= main_x 58), 78254#(<= main_x 57), 78257#(<= main_x 60), 78256#(<= main_x 59), 78259#(<= main_x 62), 78258#(<= main_x 61), 78261#(<= main_x 64), 78260#(<= main_x 63), 78263#(<= main_x 66), 78262#(<= main_x 65), 78265#(<= main_x 68), 78264#(<= main_x 67), 78267#(<= main_x 70), 78266#(<= main_x 69), 78269#(<= main_x 72), 78268#(<= main_x 71), 78271#(<= main_x 74), 78270#(<= main_x 73), 78273#(<= main_x 76), 78272#(<= main_x 75), 78275#(<= main_x 78), 78274#(<= main_x 77), 78277#(<= main_x 80), 78276#(<= main_x 79), 78279#(<= main_x 82), 78278#(<= main_x 81), 78281#(<= main_x 84), 78280#(<= main_x 83), 78283#(<= main_x 86), 78282#(<= main_x 85), 78285#(<= main_x 88), 78284#(<= main_x 87), 78287#(<= main_x 90), 78286#(<= main_x 89), 78289#(<= main_x 92), 78288#(<= main_x 91), 78291#(<= main_x 94), 78290#(<= main_x 93), 78293#(<= main_x 96), 78292#(<= main_x 95), 78295#(<= main_x 98), 78294#(<= main_x 97), 78297#(<= main_x 100), 78296#(<= main_x 99), 78299#(<= main_x 102), 78298#(<= main_x 101), 78301#(<= main_x 104), 78300#(<= main_x 103), 78303#(<= main_x 106), 78302#(<= main_x 105), 78305#(<= main_x 108), 78304#(<= main_x 107), 78307#(<= main_x 110), 78306#(<= main_x 109), 78309#(<= main_x 112), 78308#(<= main_x 111), 78311#(<= main_x 114), 78310#(<= main_x 113), 78313#(<= main_x 116), 78312#(<= main_x 115), 78315#(<= main_x 118), 78314#(<= main_x 117), 78317#(<= main_x 120), 78316#(<= main_x 119), 78319#(<= main_x 122), 78318#(<= main_x 121), 78321#(<= main_x 124), 78320#(<= main_x 123), 78323#(<= main_x 126), 78322#(<= main_x 125), 78325#(<= main_x 128), 78324#(<= main_x 127), 78327#(<= main_x 130), 78326#(<= main_x 129), 78329#(<= main_x 132), 78328#(<= main_x 131), 78331#(<= main_x 134), 78330#(<= main_x 133), 78333#(<= main_x 136), 78332#(<= main_x 135), 78335#(<= main_x 138), 78334#(<= main_x 137)] [2018-07-23 13:56:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:08,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 175 states [2018-07-23 13:56:08,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2018-07-23 13:56:08,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:56:08,373 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 175 states. [2018-07-23 13:56:08,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:08,688 INFO L93 Difference]: Finished difference Result 179 states and 179 transitions. [2018-07-23 13:56:08,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2018-07-23 13:56:08,688 INFO L78 Accepts]: Start accepts. Automaton has 175 states. Word has length 175 [2018-07-23 13:56:08,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:08,689 INFO L225 Difference]: With dead ends: 179 [2018-07-23 13:56:08,689 INFO L226 Difference]: Without dead ends: 177 [2018-07-23 13:56:08,690 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:56:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-07-23 13:56:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-07-23 13:56:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-07-23 13:56:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 177 transitions. [2018-07-23 13:56:08,692 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 177 transitions. Word has length 175 [2018-07-23 13:56:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:08,693 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 177 transitions. [2018-07-23 13:56:08,693 INFO L472 AbstractCegarLoop]: Interpolant automaton has 175 states. [2018-07-23 13:56:08,693 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 177 transitions. [2018-07-23 13:56:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-23 13:56:08,693 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:08,694 INFO L357 BasicCegarLoop]: trace histogram [173, 1, 1, 1] [2018-07-23 13:56:08,694 INFO L414 AbstractCegarLoop]: === Iteration 174 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:08,694 INFO L82 PathProgramCache]: Analyzing trace with hash -591696122, now seen corresponding path program 173 times [2018-07-23 13:56:08,694 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 15051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:09,452 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:09,453 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [175] total 175 [2018-07-23 13:56:09,453 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:09,453 INFO L185 omatonBuilderFactory]: Interpolants [79105#(<= main_x 21), 79104#(<= main_x 20), 79107#(<= main_x 23), 79106#(<= main_x 22), 79109#(<= main_x 25), 79108#(<= main_x 24), 79111#(<= main_x 27), 79110#(<= main_x 26), 79113#(<= main_x 29), 79112#(<= main_x 28), 79115#(<= main_x 31), 79114#(<= main_x 30), 79117#(<= main_x 33), 79116#(<= main_x 32), 79119#(<= main_x 35), 79118#(<= main_x 34), 79121#(<= main_x 37), 79120#(<= main_x 36), 79123#(<= main_x 39), 79122#(<= main_x 38), 79125#(<= main_x 41), 79124#(<= main_x 40), 79127#(<= main_x 43), 79126#(<= main_x 42), 79129#(<= main_x 45), 79128#(<= main_x 44), 79131#(<= main_x 47), 79130#(<= main_x 46), 79133#(<= main_x 49), 79132#(<= main_x 48), 79135#(<= main_x 51), 79134#(<= main_x 50), 79137#(<= main_x 53), 79136#(<= main_x 52), 79139#(<= main_x 55), 79138#(<= main_x 54), 79141#(<= main_x 57), 79140#(<= main_x 56), 79143#(<= main_x 59), 79142#(<= main_x 58), 79145#(<= main_x 61), 79144#(<= main_x 60), 79147#(<= main_x 63), 79146#(<= main_x 62), 79149#(<= main_x 65), 79148#(<= main_x 64), 79151#(<= main_x 67), 79150#(<= main_x 66), 79153#(<= main_x 69), 79152#(<= main_x 68), 79155#(<= main_x 71), 79154#(<= main_x 70), 79157#(<= main_x 73), 79156#(<= main_x 72), 79159#(<= main_x 75), 79158#(<= main_x 74), 79161#(<= main_x 77), 79160#(<= main_x 76), 79163#(<= main_x 79), 79162#(<= main_x 78), 79165#(<= main_x 81), 79164#(<= main_x 80), 79167#(<= main_x 83), 79166#(<= main_x 82), 79169#(<= main_x 85), 79168#(<= main_x 84), 79171#(<= main_x 87), 79170#(<= main_x 86), 79173#(<= main_x 89), 79172#(<= main_x 88), 79175#(<= main_x 91), 79174#(<= main_x 90), 79177#(<= main_x 93), 79176#(<= main_x 92), 79179#(<= main_x 95), 79178#(<= main_x 94), 79181#(<= main_x 97), 79180#(<= main_x 96), 79183#(<= main_x 99), 79182#(<= main_x 98), 79185#(<= main_x 101), 79184#(<= main_x 100), 79187#(<= main_x 103), 79186#(<= main_x 102), 79189#(<= main_x 105), 79188#(<= main_x 104), 79191#(<= main_x 107), 79190#(<= main_x 106), 79193#(<= main_x 109), 79192#(<= main_x 108), 79195#(<= main_x 111), 79194#(<= main_x 110), 79197#(<= main_x 113), 79196#(<= main_x 112), 79199#(<= main_x 115), 79198#(<= main_x 114), 79201#(<= main_x 117), 79200#(<= main_x 116), 79203#(<= main_x 119), 79202#(<= main_x 118), 79205#(<= main_x 121), 79204#(<= main_x 120), 79207#(<= main_x 123), 79206#(<= main_x 122), 79209#(<= main_x 125), 79208#(<= main_x 124), 79211#(<= main_x 127), 79210#(<= main_x 126), 79213#(<= main_x 129), 79212#(<= main_x 128), 79215#(<= main_x 131), 79214#(<= main_x 130), 79217#(<= main_x 133), 79216#(<= main_x 132), 79219#(<= main_x 135), 79218#(<= main_x 134), 79221#(<= main_x 137), 79220#(<= main_x 136), 79223#(<= main_x 139), 79222#(<= main_x 138), 79225#(<= main_x 141), 79224#(<= main_x 140), 79227#(<= main_x 143), 79226#(<= main_x 142), 79229#(<= main_x 145), 79228#(<= main_x 144), 79231#(<= main_x 147), 79230#(<= main_x 146), 79233#(<= main_x 149), 79232#(<= main_x 148), 79235#(<= main_x 151), 79234#(<= main_x 150), 79237#(<= main_x 153), 79236#(<= main_x 152), 79239#(<= main_x 155), 79238#(<= main_x 154), 79241#(<= main_x 157), 79240#(<= main_x 156), 79243#(<= main_x 159), 79242#(<= main_x 158), 79245#(<= main_x 161), 79244#(<= main_x 160), 79247#(<= main_x 163), 79246#(<= main_x 162), 79249#(<= main_x 165), 79248#(<= main_x 164), 79251#(<= main_x 167), 79250#(<= main_x 166), 79253#(<= main_x 169), 79252#(<= main_x 168), 79255#(<= main_x 171), 79254#(<= main_x 170), 79257#(<= main_x 173), 79256#(<= main_x 172), 79083#false, 79082#true, 79085#(<= main_x 1), 79084#(<= main_x 0), 79087#(<= main_x 3), 79086#(<= main_x 2), 79089#(<= main_x 5), 79088#(<= main_x 4), 79091#(<= main_x 7), 79090#(<= main_x 6), 79093#(<= main_x 9), 79092#(<= main_x 8), 79095#(<= main_x 11), 79094#(<= main_x 10), 79097#(<= main_x 13), 79096#(<= main_x 12), 79099#(<= main_x 15), 79098#(<= main_x 14), 79101#(<= main_x 17), 79100#(<= main_x 16), 79103#(<= main_x 19), 79102#(<= main_x 18)] [2018-07-23 13:56:09,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 15051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:09,454 INFO L450 AbstractCegarLoop]: Interpolant automaton has 176 states [2018-07-23 13:56:09,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2018-07-23 13:56:09,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:56:09,457 INFO L87 Difference]: Start difference. First operand 177 states and 177 transitions. Second operand 176 states. [2018-07-23 13:56:09,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:09,988 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2018-07-23 13:56:09,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2018-07-23 13:56:09,988 INFO L78 Accepts]: Start accepts. Automaton has 176 states. Word has length 176 [2018-07-23 13:56:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:09,989 INFO L225 Difference]: With dead ends: 180 [2018-07-23 13:56:09,989 INFO L226 Difference]: Without dead ends: 178 [2018-07-23 13:56:09,990 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:56:09,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-07-23 13:56:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-07-23 13:56:09,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-07-23 13:56:09,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-07-23 13:56:09,992 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 176 [2018-07-23 13:56:09,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:09,993 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-07-23 13:56:09,993 INFO L472 AbstractCegarLoop]: Interpolant automaton has 176 states. [2018-07-23 13:56:09,993 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-07-23 13:56:09,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-07-23 13:56:09,993 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:09,993 INFO L357 BasicCegarLoop]: trace histogram [174, 1, 1, 1] [2018-07-23 13:56:09,993 INFO L414 AbstractCegarLoop]: === Iteration 175 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:09,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1162714464, now seen corresponding path program 174 times [2018-07-23 13:56:09,994 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:10,790 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:10,790 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [176] total 176 [2018-07-23 13:56:10,790 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:10,791 INFO L185 omatonBuilderFactory]: Interpolants [80129#(<= main_x 153), 80128#(<= main_x 152), 80131#(<= main_x 155), 80130#(<= main_x 154), 80133#(<= main_x 157), 80132#(<= main_x 156), 80135#(<= main_x 159), 80134#(<= main_x 158), 80137#(<= main_x 161), 80136#(<= main_x 160), 80139#(<= main_x 163), 80138#(<= main_x 162), 80141#(<= main_x 165), 80140#(<= main_x 164), 80143#(<= main_x 167), 80142#(<= main_x 166), 80145#(<= main_x 169), 80144#(<= main_x 168), 80147#(<= main_x 171), 80146#(<= main_x 170), 80149#(<= main_x 173), 80148#(<= main_x 172), 80150#(<= main_x 174), 79975#false, 79974#true, 79977#(<= main_x 1), 79976#(<= main_x 0), 79979#(<= main_x 3), 79978#(<= main_x 2), 79981#(<= main_x 5), 79980#(<= main_x 4), 79983#(<= main_x 7), 79982#(<= main_x 6), 79985#(<= main_x 9), 79984#(<= main_x 8), 79987#(<= main_x 11), 79986#(<= main_x 10), 79989#(<= main_x 13), 79988#(<= main_x 12), 79991#(<= main_x 15), 79990#(<= main_x 14), 79993#(<= main_x 17), 79992#(<= main_x 16), 79995#(<= main_x 19), 79994#(<= main_x 18), 79997#(<= main_x 21), 79996#(<= main_x 20), 79999#(<= main_x 23), 79998#(<= main_x 22), 80001#(<= main_x 25), 80000#(<= main_x 24), 80003#(<= main_x 27), 80002#(<= main_x 26), 80005#(<= main_x 29), 80004#(<= main_x 28), 80007#(<= main_x 31), 80006#(<= main_x 30), 80009#(<= main_x 33), 80008#(<= main_x 32), 80011#(<= main_x 35), 80010#(<= main_x 34), 80013#(<= main_x 37), 80012#(<= main_x 36), 80015#(<= main_x 39), 80014#(<= main_x 38), 80017#(<= main_x 41), 80016#(<= main_x 40), 80019#(<= main_x 43), 80018#(<= main_x 42), 80021#(<= main_x 45), 80020#(<= main_x 44), 80023#(<= main_x 47), 80022#(<= main_x 46), 80025#(<= main_x 49), 80024#(<= main_x 48), 80027#(<= main_x 51), 80026#(<= main_x 50), 80029#(<= main_x 53), 80028#(<= main_x 52), 80031#(<= main_x 55), 80030#(<= main_x 54), 80033#(<= main_x 57), 80032#(<= main_x 56), 80035#(<= main_x 59), 80034#(<= main_x 58), 80037#(<= main_x 61), 80036#(<= main_x 60), 80039#(<= main_x 63), 80038#(<= main_x 62), 80041#(<= main_x 65), 80040#(<= main_x 64), 80043#(<= main_x 67), 80042#(<= main_x 66), 80045#(<= main_x 69), 80044#(<= main_x 68), 80047#(<= main_x 71), 80046#(<= main_x 70), 80049#(<= main_x 73), 80048#(<= main_x 72), 80051#(<= main_x 75), 80050#(<= main_x 74), 80053#(<= main_x 77), 80052#(<= main_x 76), 80055#(<= main_x 79), 80054#(<= main_x 78), 80057#(<= main_x 81), 80056#(<= main_x 80), 80059#(<= main_x 83), 80058#(<= main_x 82), 80061#(<= main_x 85), 80060#(<= main_x 84), 80063#(<= main_x 87), 80062#(<= main_x 86), 80065#(<= main_x 89), 80064#(<= main_x 88), 80067#(<= main_x 91), 80066#(<= main_x 90), 80069#(<= main_x 93), 80068#(<= main_x 92), 80071#(<= main_x 95), 80070#(<= main_x 94), 80073#(<= main_x 97), 80072#(<= main_x 96), 80075#(<= main_x 99), 80074#(<= main_x 98), 80077#(<= main_x 101), 80076#(<= main_x 100), 80079#(<= main_x 103), 80078#(<= main_x 102), 80081#(<= main_x 105), 80080#(<= main_x 104), 80083#(<= main_x 107), 80082#(<= main_x 106), 80085#(<= main_x 109), 80084#(<= main_x 108), 80087#(<= main_x 111), 80086#(<= main_x 110), 80089#(<= main_x 113), 80088#(<= main_x 112), 80091#(<= main_x 115), 80090#(<= main_x 114), 80093#(<= main_x 117), 80092#(<= main_x 116), 80095#(<= main_x 119), 80094#(<= main_x 118), 80097#(<= main_x 121), 80096#(<= main_x 120), 80099#(<= main_x 123), 80098#(<= main_x 122), 80101#(<= main_x 125), 80100#(<= main_x 124), 80103#(<= main_x 127), 80102#(<= main_x 126), 80105#(<= main_x 129), 80104#(<= main_x 128), 80107#(<= main_x 131), 80106#(<= main_x 130), 80109#(<= main_x 133), 80108#(<= main_x 132), 80111#(<= main_x 135), 80110#(<= main_x 134), 80113#(<= main_x 137), 80112#(<= main_x 136), 80115#(<= main_x 139), 80114#(<= main_x 138), 80117#(<= main_x 141), 80116#(<= main_x 140), 80119#(<= main_x 143), 80118#(<= main_x 142), 80121#(<= main_x 145), 80120#(<= main_x 144), 80123#(<= main_x 147), 80122#(<= main_x 146), 80125#(<= main_x 149), 80124#(<= main_x 148), 80127#(<= main_x 151), 80126#(<= main_x 150)] [2018-07-23 13:56:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:10,792 INFO L450 AbstractCegarLoop]: Interpolant automaton has 177 states [2018-07-23 13:56:10,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants. [2018-07-23 13:56:10,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:56:10,795 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 177 states. [2018-07-23 13:56:11,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:11,310 INFO L93 Difference]: Finished difference Result 181 states and 181 transitions. [2018-07-23 13:56:11,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2018-07-23 13:56:11,310 INFO L78 Accepts]: Start accepts. Automaton has 177 states. Word has length 177 [2018-07-23 13:56:11,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:11,310 INFO L225 Difference]: With dead ends: 181 [2018-07-23 13:56:11,310 INFO L226 Difference]: Without dead ends: 179 [2018-07-23 13:56:11,312 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:56:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-07-23 13:56:11,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-07-23 13:56:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-07-23 13:56:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2018-07-23 13:56:11,315 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 177 [2018-07-23 13:56:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:11,315 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 179 transitions. [2018-07-23 13:56:11,315 INFO L472 AbstractCegarLoop]: Interpolant automaton has 177 states. [2018-07-23 13:56:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 179 transitions. [2018-07-23 13:56:11,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-07-23 13:56:11,316 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:11,316 INFO L357 BasicCegarLoop]: trace histogram [175, 1, 1, 1] [2018-07-23 13:56:11,316 INFO L414 AbstractCegarLoop]: === Iteration 176 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:11,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1684413882, now seen corresponding path program 175 times [2018-07-23 13:56:11,316 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 15400 backedges. 0 proven. 15400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:12,273 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:12,273 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [177] total 177 [2018-07-23 13:56:12,273 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:12,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:12,274 INFO L185 omatonBuilderFactory]: Interpolants [80897#(<= main_x 24), 80896#(<= main_x 23), 80899#(<= main_x 26), 80898#(<= main_x 25), 80901#(<= main_x 28), 80900#(<= main_x 27), 80903#(<= main_x 30), 80902#(<= main_x 29), 80905#(<= main_x 32), 80904#(<= main_x 31), 80907#(<= main_x 34), 80906#(<= main_x 33), 80909#(<= main_x 36), 80908#(<= main_x 35), 80911#(<= main_x 38), 80910#(<= main_x 37), 80913#(<= main_x 40), 80912#(<= main_x 39), 80915#(<= main_x 42), 80914#(<= main_x 41), 80917#(<= main_x 44), 80916#(<= main_x 43), 80919#(<= main_x 46), 80918#(<= main_x 45), 80921#(<= main_x 48), 80920#(<= main_x 47), 80923#(<= main_x 50), 80922#(<= main_x 49), 80925#(<= main_x 52), 80924#(<= main_x 51), 80927#(<= main_x 54), 80926#(<= main_x 53), 80929#(<= main_x 56), 80928#(<= main_x 55), 80931#(<= main_x 58), 80930#(<= main_x 57), 80933#(<= main_x 60), 80932#(<= main_x 59), 80935#(<= main_x 62), 80934#(<= main_x 61), 80937#(<= main_x 64), 80936#(<= main_x 63), 80939#(<= main_x 66), 80938#(<= main_x 65), 80941#(<= main_x 68), 80940#(<= main_x 67), 80943#(<= main_x 70), 80942#(<= main_x 69), 80945#(<= main_x 72), 80944#(<= main_x 71), 80947#(<= main_x 74), 80946#(<= main_x 73), 80949#(<= main_x 76), 80948#(<= main_x 75), 80951#(<= main_x 78), 80950#(<= main_x 77), 80953#(<= main_x 80), 80952#(<= main_x 79), 80955#(<= main_x 82), 80954#(<= main_x 81), 80957#(<= main_x 84), 80956#(<= main_x 83), 80959#(<= main_x 86), 80958#(<= main_x 85), 80961#(<= main_x 88), 80960#(<= main_x 87), 80963#(<= main_x 90), 80962#(<= main_x 89), 80965#(<= main_x 92), 80964#(<= main_x 91), 80967#(<= main_x 94), 80966#(<= main_x 93), 80969#(<= main_x 96), 80968#(<= main_x 95), 80971#(<= main_x 98), 80970#(<= main_x 97), 80973#(<= main_x 100), 80972#(<= main_x 99), 80975#(<= main_x 102), 80974#(<= main_x 101), 80977#(<= main_x 104), 80976#(<= main_x 103), 80979#(<= main_x 106), 80978#(<= main_x 105), 80981#(<= main_x 108), 80980#(<= main_x 107), 80983#(<= main_x 110), 80982#(<= main_x 109), 80985#(<= main_x 112), 80984#(<= main_x 111), 80987#(<= main_x 114), 80986#(<= main_x 113), 80989#(<= main_x 116), 80988#(<= main_x 115), 80991#(<= main_x 118), 80990#(<= main_x 117), 80993#(<= main_x 120), 80992#(<= main_x 119), 80995#(<= main_x 122), 80994#(<= main_x 121), 80997#(<= main_x 124), 80996#(<= main_x 123), 80999#(<= main_x 126), 80998#(<= main_x 125), 81001#(<= main_x 128), 81000#(<= main_x 127), 81003#(<= main_x 130), 81002#(<= main_x 129), 81005#(<= main_x 132), 81004#(<= main_x 131), 81007#(<= main_x 134), 81006#(<= main_x 133), 81009#(<= main_x 136), 81008#(<= main_x 135), 81011#(<= main_x 138), 81010#(<= main_x 137), 81013#(<= main_x 140), 81012#(<= main_x 139), 81015#(<= main_x 142), 81014#(<= main_x 141), 81017#(<= main_x 144), 81016#(<= main_x 143), 81019#(<= main_x 146), 81018#(<= main_x 145), 81021#(<= main_x 148), 81020#(<= main_x 147), 81023#(<= main_x 150), 81022#(<= main_x 149), 81025#(<= main_x 152), 81024#(<= main_x 151), 81027#(<= main_x 154), 81026#(<= main_x 153), 81029#(<= main_x 156), 81028#(<= main_x 155), 81031#(<= main_x 158), 81030#(<= main_x 157), 81033#(<= main_x 160), 81032#(<= main_x 159), 81035#(<= main_x 162), 81034#(<= main_x 161), 81037#(<= main_x 164), 81036#(<= main_x 163), 81039#(<= main_x 166), 81038#(<= main_x 165), 81041#(<= main_x 168), 81040#(<= main_x 167), 81043#(<= main_x 170), 81042#(<= main_x 169), 81045#(<= main_x 172), 81044#(<= main_x 171), 81047#(<= main_x 174), 81046#(<= main_x 173), 81048#(<= main_x 175), 80871#true, 80873#(<= main_x 0), 80872#false, 80875#(<= main_x 2), 80874#(<= main_x 1), 80877#(<= main_x 4), 80876#(<= main_x 3), 80879#(<= main_x 6), 80878#(<= main_x 5), 80881#(<= main_x 8), 80880#(<= main_x 7), 80883#(<= main_x 10), 80882#(<= main_x 9), 80885#(<= main_x 12), 80884#(<= main_x 11), 80887#(<= main_x 14), 80886#(<= main_x 13), 80889#(<= main_x 16), 80888#(<= main_x 15), 80891#(<= main_x 18), 80890#(<= main_x 17), 80893#(<= main_x 20), 80892#(<= main_x 19), 80895#(<= main_x 22), 80894#(<= main_x 21)] [2018-07-23 13:56:12,275 INFO L134 CoverageAnalysis]: Checked inductivity of 15400 backedges. 0 proven. 15400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:12,275 INFO L450 AbstractCegarLoop]: Interpolant automaton has 178 states [2018-07-23 13:56:12,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2018-07-23 13:56:12,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:56:12,279 INFO L87 Difference]: Start difference. First operand 179 states and 179 transitions. Second operand 178 states. [2018-07-23 13:56:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:13,003 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-07-23 13:56:13,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2018-07-23 13:56:13,003 INFO L78 Accepts]: Start accepts. Automaton has 178 states. Word has length 178 [2018-07-23 13:56:13,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:13,003 INFO L225 Difference]: With dead ends: 182 [2018-07-23 13:56:13,004 INFO L226 Difference]: Without dead ends: 180 [2018-07-23 13:56:13,005 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:56:13,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-07-23 13:56:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-07-23 13:56:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-07-23 13:56:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2018-07-23 13:56:13,008 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 178 [2018-07-23 13:56:13,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:13,008 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2018-07-23 13:56:13,008 INFO L472 AbstractCegarLoop]: Interpolant automaton has 178 states. [2018-07-23 13:56:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2018-07-23 13:56:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 13:56:13,009 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:13,009 INFO L357 BasicCegarLoop]: trace histogram [176, 1, 1, 1] [2018-07-23 13:56:13,009 INFO L414 AbstractCegarLoop]: === Iteration 177 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:13,009 INFO L82 PathProgramCache]: Analyzing trace with hash -677226656, now seen corresponding path program 176 times [2018-07-23 13:56:13,009 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:13,941 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:13,941 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [178] total 178 [2018-07-23 13:56:13,941 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:13,942 INFO L185 omatonBuilderFactory]: Interpolants [81921#(<= main_x 146), 81920#(<= main_x 145), 81923#(<= main_x 148), 81922#(<= main_x 147), 81925#(<= main_x 150), 81924#(<= main_x 149), 81927#(<= main_x 152), 81926#(<= main_x 151), 81929#(<= main_x 154), 81928#(<= main_x 153), 81931#(<= main_x 156), 81930#(<= main_x 155), 81933#(<= main_x 158), 81932#(<= main_x 157), 81935#(<= main_x 160), 81934#(<= main_x 159), 81937#(<= main_x 162), 81936#(<= main_x 161), 81939#(<= main_x 164), 81938#(<= main_x 163), 81941#(<= main_x 166), 81940#(<= main_x 165), 81943#(<= main_x 168), 81942#(<= main_x 167), 81945#(<= main_x 170), 81944#(<= main_x 169), 81947#(<= main_x 172), 81946#(<= main_x 171), 81949#(<= main_x 174), 81948#(<= main_x 173), 81951#(<= main_x 176), 81950#(<= main_x 175), 81773#true, 81775#(<= main_x 0), 81774#false, 81777#(<= main_x 2), 81776#(<= main_x 1), 81779#(<= main_x 4), 81778#(<= main_x 3), 81781#(<= main_x 6), 81780#(<= main_x 5), 81783#(<= main_x 8), 81782#(<= main_x 7), 81785#(<= main_x 10), 81784#(<= main_x 9), 81787#(<= main_x 12), 81786#(<= main_x 11), 81789#(<= main_x 14), 81788#(<= main_x 13), 81791#(<= main_x 16), 81790#(<= main_x 15), 81793#(<= main_x 18), 81792#(<= main_x 17), 81795#(<= main_x 20), 81794#(<= main_x 19), 81797#(<= main_x 22), 81796#(<= main_x 21), 81799#(<= main_x 24), 81798#(<= main_x 23), 81801#(<= main_x 26), 81800#(<= main_x 25), 81803#(<= main_x 28), 81802#(<= main_x 27), 81805#(<= main_x 30), 81804#(<= main_x 29), 81807#(<= main_x 32), 81806#(<= main_x 31), 81809#(<= main_x 34), 81808#(<= main_x 33), 81811#(<= main_x 36), 81810#(<= main_x 35), 81813#(<= main_x 38), 81812#(<= main_x 37), 81815#(<= main_x 40), 81814#(<= main_x 39), 81817#(<= main_x 42), 81816#(<= main_x 41), 81819#(<= main_x 44), 81818#(<= main_x 43), 81821#(<= main_x 46), 81820#(<= main_x 45), 81823#(<= main_x 48), 81822#(<= main_x 47), 81825#(<= main_x 50), 81824#(<= main_x 49), 81827#(<= main_x 52), 81826#(<= main_x 51), 81829#(<= main_x 54), 81828#(<= main_x 53), 81831#(<= main_x 56), 81830#(<= main_x 55), 81833#(<= main_x 58), 81832#(<= main_x 57), 81835#(<= main_x 60), 81834#(<= main_x 59), 81837#(<= main_x 62), 81836#(<= main_x 61), 81839#(<= main_x 64), 81838#(<= main_x 63), 81841#(<= main_x 66), 81840#(<= main_x 65), 81843#(<= main_x 68), 81842#(<= main_x 67), 81845#(<= main_x 70), 81844#(<= main_x 69), 81847#(<= main_x 72), 81846#(<= main_x 71), 81849#(<= main_x 74), 81848#(<= main_x 73), 81851#(<= main_x 76), 81850#(<= main_x 75), 81853#(<= main_x 78), 81852#(<= main_x 77), 81855#(<= main_x 80), 81854#(<= main_x 79), 81857#(<= main_x 82), 81856#(<= main_x 81), 81859#(<= main_x 84), 81858#(<= main_x 83), 81861#(<= main_x 86), 81860#(<= main_x 85), 81863#(<= main_x 88), 81862#(<= main_x 87), 81865#(<= main_x 90), 81864#(<= main_x 89), 81867#(<= main_x 92), 81866#(<= main_x 91), 81869#(<= main_x 94), 81868#(<= main_x 93), 81871#(<= main_x 96), 81870#(<= main_x 95), 81873#(<= main_x 98), 81872#(<= main_x 97), 81875#(<= main_x 100), 81874#(<= main_x 99), 81877#(<= main_x 102), 81876#(<= main_x 101), 81879#(<= main_x 104), 81878#(<= main_x 103), 81881#(<= main_x 106), 81880#(<= main_x 105), 81883#(<= main_x 108), 81882#(<= main_x 107), 81885#(<= main_x 110), 81884#(<= main_x 109), 81887#(<= main_x 112), 81886#(<= main_x 111), 81889#(<= main_x 114), 81888#(<= main_x 113), 81891#(<= main_x 116), 81890#(<= main_x 115), 81893#(<= main_x 118), 81892#(<= main_x 117), 81895#(<= main_x 120), 81894#(<= main_x 119), 81897#(<= main_x 122), 81896#(<= main_x 121), 81899#(<= main_x 124), 81898#(<= main_x 123), 81901#(<= main_x 126), 81900#(<= main_x 125), 81903#(<= main_x 128), 81902#(<= main_x 127), 81905#(<= main_x 130), 81904#(<= main_x 129), 81907#(<= main_x 132), 81906#(<= main_x 131), 81909#(<= main_x 134), 81908#(<= main_x 133), 81911#(<= main_x 136), 81910#(<= main_x 135), 81913#(<= main_x 138), 81912#(<= main_x 137), 81915#(<= main_x 140), 81914#(<= main_x 139), 81917#(<= main_x 142), 81916#(<= main_x 141), 81919#(<= main_x 144), 81918#(<= main_x 143)] [2018-07-23 13:56:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:13,942 INFO L450 AbstractCegarLoop]: Interpolant automaton has 179 states [2018-07-23 13:56:13,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2018-07-23 13:56:13,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:56:13,946 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand 179 states. [2018-07-23 13:56:14,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:14,363 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2018-07-23 13:56:14,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2018-07-23 13:56:14,363 INFO L78 Accepts]: Start accepts. Automaton has 179 states. Word has length 179 [2018-07-23 13:56:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:14,364 INFO L225 Difference]: With dead ends: 183 [2018-07-23 13:56:14,364 INFO L226 Difference]: Without dead ends: 181 [2018-07-23 13:56:14,365 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:56:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-07-23 13:56:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-07-23 13:56:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-07-23 13:56:14,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2018-07-23 13:56:14,367 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 179 [2018-07-23 13:56:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:14,367 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2018-07-23 13:56:14,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 179 states. [2018-07-23 13:56:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2018-07-23 13:56:14,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-07-23 13:56:14,368 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:14,368 INFO L357 BasicCegarLoop]: trace histogram [177, 1, 1, 1] [2018-07-23 13:56:14,368 INFO L414 AbstractCegarLoop]: === Iteration 178 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:14,368 INFO L82 PathProgramCache]: Analyzing trace with hash 480806278, now seen corresponding path program 177 times [2018-07-23 13:56:14,368 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:15,282 INFO L134 CoverageAnalysis]: Checked inductivity of 15753 backedges. 0 proven. 15753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:15,282 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:15,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [179] total 179 [2018-07-23 13:56:15,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:15,283 INFO L185 omatonBuilderFactory]: Interpolants [82689#(<= main_x 7), 82688#(<= main_x 6), 82691#(<= main_x 9), 82690#(<= main_x 8), 82693#(<= main_x 11), 82692#(<= main_x 10), 82695#(<= main_x 13), 82694#(<= main_x 12), 82697#(<= main_x 15), 82696#(<= main_x 14), 82699#(<= main_x 17), 82698#(<= main_x 16), 82701#(<= main_x 19), 82700#(<= main_x 18), 82703#(<= main_x 21), 82702#(<= main_x 20), 82705#(<= main_x 23), 82704#(<= main_x 22), 82707#(<= main_x 25), 82706#(<= main_x 24), 82709#(<= main_x 27), 82708#(<= main_x 26), 82711#(<= main_x 29), 82710#(<= main_x 28), 82713#(<= main_x 31), 82712#(<= main_x 30), 82715#(<= main_x 33), 82714#(<= main_x 32), 82717#(<= main_x 35), 82716#(<= main_x 34), 82719#(<= main_x 37), 82718#(<= main_x 36), 82721#(<= main_x 39), 82720#(<= main_x 38), 82723#(<= main_x 41), 82722#(<= main_x 40), 82725#(<= main_x 43), 82724#(<= main_x 42), 82727#(<= main_x 45), 82726#(<= main_x 44), 82729#(<= main_x 47), 82728#(<= main_x 46), 82731#(<= main_x 49), 82730#(<= main_x 48), 82733#(<= main_x 51), 82732#(<= main_x 50), 82735#(<= main_x 53), 82734#(<= main_x 52), 82737#(<= main_x 55), 82736#(<= main_x 54), 82739#(<= main_x 57), 82738#(<= main_x 56), 82741#(<= main_x 59), 82740#(<= main_x 58), 82743#(<= main_x 61), 82742#(<= main_x 60), 82745#(<= main_x 63), 82744#(<= main_x 62), 82747#(<= main_x 65), 82746#(<= main_x 64), 82749#(<= main_x 67), 82748#(<= main_x 66), 82751#(<= main_x 69), 82750#(<= main_x 68), 82753#(<= main_x 71), 82752#(<= main_x 70), 82755#(<= main_x 73), 82754#(<= main_x 72), 82757#(<= main_x 75), 82756#(<= main_x 74), 82759#(<= main_x 77), 82758#(<= main_x 76), 82761#(<= main_x 79), 82760#(<= main_x 78), 82763#(<= main_x 81), 82762#(<= main_x 80), 82765#(<= main_x 83), 82764#(<= main_x 82), 82767#(<= main_x 85), 82766#(<= main_x 84), 82769#(<= main_x 87), 82768#(<= main_x 86), 82771#(<= main_x 89), 82770#(<= main_x 88), 82773#(<= main_x 91), 82772#(<= main_x 90), 82775#(<= main_x 93), 82774#(<= main_x 92), 82777#(<= main_x 95), 82776#(<= main_x 94), 82779#(<= main_x 97), 82778#(<= main_x 96), 82781#(<= main_x 99), 82780#(<= main_x 98), 82783#(<= main_x 101), 82782#(<= main_x 100), 82785#(<= main_x 103), 82784#(<= main_x 102), 82787#(<= main_x 105), 82786#(<= main_x 104), 82789#(<= main_x 107), 82788#(<= main_x 106), 82791#(<= main_x 109), 82790#(<= main_x 108), 82793#(<= main_x 111), 82792#(<= main_x 110), 82795#(<= main_x 113), 82794#(<= main_x 112), 82797#(<= main_x 115), 82796#(<= main_x 114), 82799#(<= main_x 117), 82798#(<= main_x 116), 82801#(<= main_x 119), 82800#(<= main_x 118), 82803#(<= main_x 121), 82802#(<= main_x 120), 82805#(<= main_x 123), 82804#(<= main_x 122), 82807#(<= main_x 125), 82806#(<= main_x 124), 82809#(<= main_x 127), 82808#(<= main_x 126), 82811#(<= main_x 129), 82810#(<= main_x 128), 82813#(<= main_x 131), 82812#(<= main_x 130), 82815#(<= main_x 133), 82814#(<= main_x 132), 82817#(<= main_x 135), 82816#(<= main_x 134), 82819#(<= main_x 137), 82818#(<= main_x 136), 82821#(<= main_x 139), 82820#(<= main_x 138), 82823#(<= main_x 141), 82822#(<= main_x 140), 82825#(<= main_x 143), 82824#(<= main_x 142), 82827#(<= main_x 145), 82826#(<= main_x 144), 82829#(<= main_x 147), 82828#(<= main_x 146), 82831#(<= main_x 149), 82830#(<= main_x 148), 82833#(<= main_x 151), 82832#(<= main_x 150), 82835#(<= main_x 153), 82834#(<= main_x 152), 82837#(<= main_x 155), 82836#(<= main_x 154), 82839#(<= main_x 157), 82838#(<= main_x 156), 82841#(<= main_x 159), 82840#(<= main_x 158), 82843#(<= main_x 161), 82842#(<= main_x 160), 82845#(<= main_x 163), 82844#(<= main_x 162), 82847#(<= main_x 165), 82846#(<= main_x 164), 82849#(<= main_x 167), 82848#(<= main_x 166), 82851#(<= main_x 169), 82850#(<= main_x 168), 82853#(<= main_x 171), 82852#(<= main_x 170), 82855#(<= main_x 173), 82854#(<= main_x 172), 82857#(<= main_x 175), 82856#(<= main_x 174), 82859#(<= main_x 177), 82858#(<= main_x 176), 82681#false, 82680#true, 82683#(<= main_x 1), 82682#(<= main_x 0), 82685#(<= main_x 3), 82684#(<= main_x 2), 82687#(<= main_x 5), 82686#(<= main_x 4)] [2018-07-23 13:56:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15753 backedges. 0 proven. 15753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:15,285 INFO L450 AbstractCegarLoop]: Interpolant automaton has 180 states [2018-07-23 13:56:15,288 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2018-07-23 13:56:15,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:56:15,289 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 180 states. [2018-07-23 13:56:16,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:16,139 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2018-07-23 13:56:16,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2018-07-23 13:56:16,139 INFO L78 Accepts]: Start accepts. Automaton has 180 states. Word has length 180 [2018-07-23 13:56:16,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:16,140 INFO L225 Difference]: With dead ends: 184 [2018-07-23 13:56:16,140 INFO L226 Difference]: Without dead ends: 182 [2018-07-23 13:56:16,142 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:56:16,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-07-23 13:56:16,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-07-23 13:56:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-07-23 13:56:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2018-07-23 13:56:16,145 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 180 [2018-07-23 13:56:16,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:16,146 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2018-07-23 13:56:16,146 INFO L472 AbstractCegarLoop]: Interpolant automaton has 180 states. [2018-07-23 13:56:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2018-07-23 13:56:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-07-23 13:56:16,146 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:16,146 INFO L357 BasicCegarLoop]: trace histogram [178, 1, 1, 1] [2018-07-23 13:56:16,146 INFO L414 AbstractCegarLoop]: === Iteration 179 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:16,147 INFO L82 PathProgramCache]: Analyzing trace with hash 2020088864, now seen corresponding path program 178 times [2018-07-23 13:56:16,147 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:17,103 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:17,103 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [180] total 180 [2018-07-23 13:56:17,103 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:17,103 INFO L185 omatonBuilderFactory]: Interpolants [83713#(<= main_x 119), 83712#(<= main_x 118), 83715#(<= main_x 121), 83714#(<= main_x 120), 83717#(<= main_x 123), 83716#(<= main_x 122), 83719#(<= main_x 125), 83718#(<= main_x 124), 83721#(<= main_x 127), 83720#(<= main_x 126), 83723#(<= main_x 129), 83722#(<= main_x 128), 83725#(<= main_x 131), 83724#(<= main_x 130), 83727#(<= main_x 133), 83726#(<= main_x 132), 83729#(<= main_x 135), 83728#(<= main_x 134), 83731#(<= main_x 137), 83730#(<= main_x 136), 83733#(<= main_x 139), 83732#(<= main_x 138), 83735#(<= main_x 141), 83734#(<= main_x 140), 83737#(<= main_x 143), 83736#(<= main_x 142), 83739#(<= main_x 145), 83738#(<= main_x 144), 83741#(<= main_x 147), 83740#(<= main_x 146), 83743#(<= main_x 149), 83742#(<= main_x 148), 83745#(<= main_x 151), 83744#(<= main_x 150), 83747#(<= main_x 153), 83746#(<= main_x 152), 83749#(<= main_x 155), 83748#(<= main_x 154), 83751#(<= main_x 157), 83750#(<= main_x 156), 83753#(<= main_x 159), 83752#(<= main_x 158), 83755#(<= main_x 161), 83754#(<= main_x 160), 83757#(<= main_x 163), 83756#(<= main_x 162), 83759#(<= main_x 165), 83758#(<= main_x 164), 83761#(<= main_x 167), 83760#(<= main_x 166), 83763#(<= main_x 169), 83762#(<= main_x 168), 83765#(<= main_x 171), 83764#(<= main_x 170), 83767#(<= main_x 173), 83766#(<= main_x 172), 83769#(<= main_x 175), 83768#(<= main_x 174), 83771#(<= main_x 177), 83770#(<= main_x 176), 83772#(<= main_x 178), 83593#false, 83592#true, 83595#(<= main_x 1), 83594#(<= main_x 0), 83597#(<= main_x 3), 83596#(<= main_x 2), 83599#(<= main_x 5), 83598#(<= main_x 4), 83601#(<= main_x 7), 83600#(<= main_x 6), 83603#(<= main_x 9), 83602#(<= main_x 8), 83605#(<= main_x 11), 83604#(<= main_x 10), 83607#(<= main_x 13), 83606#(<= main_x 12), 83609#(<= main_x 15), 83608#(<= main_x 14), 83611#(<= main_x 17), 83610#(<= main_x 16), 83613#(<= main_x 19), 83612#(<= main_x 18), 83615#(<= main_x 21), 83614#(<= main_x 20), 83617#(<= main_x 23), 83616#(<= main_x 22), 83619#(<= main_x 25), 83618#(<= main_x 24), 83621#(<= main_x 27), 83620#(<= main_x 26), 83623#(<= main_x 29), 83622#(<= main_x 28), 83625#(<= main_x 31), 83624#(<= main_x 30), 83627#(<= main_x 33), 83626#(<= main_x 32), 83629#(<= main_x 35), 83628#(<= main_x 34), 83631#(<= main_x 37), 83630#(<= main_x 36), 83633#(<= main_x 39), 83632#(<= main_x 38), 83635#(<= main_x 41), 83634#(<= main_x 40), 83637#(<= main_x 43), 83636#(<= main_x 42), 83639#(<= main_x 45), 83638#(<= main_x 44), 83641#(<= main_x 47), 83640#(<= main_x 46), 83643#(<= main_x 49), 83642#(<= main_x 48), 83645#(<= main_x 51), 83644#(<= main_x 50), 83647#(<= main_x 53), 83646#(<= main_x 52), 83649#(<= main_x 55), 83648#(<= main_x 54), 83651#(<= main_x 57), 83650#(<= main_x 56), 83653#(<= main_x 59), 83652#(<= main_x 58), 83655#(<= main_x 61), 83654#(<= main_x 60), 83657#(<= main_x 63), 83656#(<= main_x 62), 83659#(<= main_x 65), 83658#(<= main_x 64), 83661#(<= main_x 67), 83660#(<= main_x 66), 83663#(<= main_x 69), 83662#(<= main_x 68), 83665#(<= main_x 71), 83664#(<= main_x 70), 83667#(<= main_x 73), 83666#(<= main_x 72), 83669#(<= main_x 75), 83668#(<= main_x 74), 83671#(<= main_x 77), 83670#(<= main_x 76), 83673#(<= main_x 79), 83672#(<= main_x 78), 83675#(<= main_x 81), 83674#(<= main_x 80), 83677#(<= main_x 83), 83676#(<= main_x 82), 83679#(<= main_x 85), 83678#(<= main_x 84), 83681#(<= main_x 87), 83680#(<= main_x 86), 83683#(<= main_x 89), 83682#(<= main_x 88), 83685#(<= main_x 91), 83684#(<= main_x 90), 83687#(<= main_x 93), 83686#(<= main_x 92), 83689#(<= main_x 95), 83688#(<= main_x 94), 83691#(<= main_x 97), 83690#(<= main_x 96), 83693#(<= main_x 99), 83692#(<= main_x 98), 83695#(<= main_x 101), 83694#(<= main_x 100), 83697#(<= main_x 103), 83696#(<= main_x 102), 83699#(<= main_x 105), 83698#(<= main_x 104), 83701#(<= main_x 107), 83700#(<= main_x 106), 83703#(<= main_x 109), 83702#(<= main_x 108), 83705#(<= main_x 111), 83704#(<= main_x 110), 83707#(<= main_x 113), 83706#(<= main_x 112), 83709#(<= main_x 115), 83708#(<= main_x 114), 83711#(<= main_x 117), 83710#(<= main_x 116)] [2018-07-23 13:56:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:17,104 INFO L450 AbstractCegarLoop]: Interpolant automaton has 181 states [2018-07-23 13:56:17,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2018-07-23 13:56:17,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16290, Invalid=16290, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:56:17,108 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand 181 states. [2018-07-23 13:56:17,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:17,404 INFO L93 Difference]: Finished difference Result 185 states and 185 transitions. [2018-07-23 13:56:17,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2018-07-23 13:56:17,404 INFO L78 Accepts]: Start accepts. Automaton has 181 states. Word has length 181 [2018-07-23 13:56:17,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:17,404 INFO L225 Difference]: With dead ends: 185 [2018-07-23 13:56:17,404 INFO L226 Difference]: Without dead ends: 183 [2018-07-23 13:56:17,406 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16290, Invalid=16290, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:56:17,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-07-23 13:56:17,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2018-07-23 13:56:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-07-23 13:56:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 183 transitions. [2018-07-23 13:56:17,409 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 183 transitions. Word has length 181 [2018-07-23 13:56:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:17,409 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 183 transitions. [2018-07-23 13:56:17,409 INFO L472 AbstractCegarLoop]: Interpolant automaton has 181 states. [2018-07-23 13:56:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 183 transitions. [2018-07-23 13:56:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-23 13:56:17,410 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:17,410 INFO L357 BasicCegarLoop]: trace histogram [179, 1, 1, 1] [2018-07-23 13:56:17,410 INFO L414 AbstractCegarLoop]: === Iteration 180 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:17,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1801758522, now seen corresponding path program 179 times [2018-07-23 13:56:17,411 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 16110 backedges. 0 proven. 16110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:18,384 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:18,384 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [181] total 181 [2018-07-23 13:56:18,384 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:18,385 INFO L185 omatonBuilderFactory]: Interpolants [84509#true, 84511#(<= main_x 0), 84510#false, 84513#(<= main_x 2), 84512#(<= main_x 1), 84515#(<= main_x 4), 84514#(<= main_x 3), 84517#(<= main_x 6), 84516#(<= main_x 5), 84519#(<= main_x 8), 84518#(<= main_x 7), 84521#(<= main_x 10), 84520#(<= main_x 9), 84523#(<= main_x 12), 84522#(<= main_x 11), 84525#(<= main_x 14), 84524#(<= main_x 13), 84527#(<= main_x 16), 84526#(<= main_x 15), 84529#(<= main_x 18), 84528#(<= main_x 17), 84531#(<= main_x 20), 84530#(<= main_x 19), 84533#(<= main_x 22), 84532#(<= main_x 21), 84535#(<= main_x 24), 84534#(<= main_x 23), 84537#(<= main_x 26), 84536#(<= main_x 25), 84539#(<= main_x 28), 84538#(<= main_x 27), 84541#(<= main_x 30), 84540#(<= main_x 29), 84543#(<= main_x 32), 84542#(<= main_x 31), 84545#(<= main_x 34), 84544#(<= main_x 33), 84547#(<= main_x 36), 84546#(<= main_x 35), 84549#(<= main_x 38), 84548#(<= main_x 37), 84551#(<= main_x 40), 84550#(<= main_x 39), 84553#(<= main_x 42), 84552#(<= main_x 41), 84555#(<= main_x 44), 84554#(<= main_x 43), 84557#(<= main_x 46), 84556#(<= main_x 45), 84559#(<= main_x 48), 84558#(<= main_x 47), 84561#(<= main_x 50), 84560#(<= main_x 49), 84563#(<= main_x 52), 84562#(<= main_x 51), 84565#(<= main_x 54), 84564#(<= main_x 53), 84567#(<= main_x 56), 84566#(<= main_x 55), 84569#(<= main_x 58), 84568#(<= main_x 57), 84571#(<= main_x 60), 84570#(<= main_x 59), 84573#(<= main_x 62), 84572#(<= main_x 61), 84575#(<= main_x 64), 84574#(<= main_x 63), 84577#(<= main_x 66), 84576#(<= main_x 65), 84579#(<= main_x 68), 84578#(<= main_x 67), 84581#(<= main_x 70), 84580#(<= main_x 69), 84583#(<= main_x 72), 84582#(<= main_x 71), 84585#(<= main_x 74), 84584#(<= main_x 73), 84587#(<= main_x 76), 84586#(<= main_x 75), 84589#(<= main_x 78), 84588#(<= main_x 77), 84591#(<= main_x 80), 84590#(<= main_x 79), 84593#(<= main_x 82), 84592#(<= main_x 81), 84595#(<= main_x 84), 84594#(<= main_x 83), 84597#(<= main_x 86), 84596#(<= main_x 85), 84599#(<= main_x 88), 84598#(<= main_x 87), 84601#(<= main_x 90), 84600#(<= main_x 89), 84603#(<= main_x 92), 84602#(<= main_x 91), 84605#(<= main_x 94), 84604#(<= main_x 93), 84607#(<= main_x 96), 84606#(<= main_x 95), 84609#(<= main_x 98), 84608#(<= main_x 97), 84611#(<= main_x 100), 84610#(<= main_x 99), 84613#(<= main_x 102), 84612#(<= main_x 101), 84615#(<= main_x 104), 84614#(<= main_x 103), 84617#(<= main_x 106), 84616#(<= main_x 105), 84619#(<= main_x 108), 84618#(<= main_x 107), 84621#(<= main_x 110), 84620#(<= main_x 109), 84623#(<= main_x 112), 84622#(<= main_x 111), 84625#(<= main_x 114), 84624#(<= main_x 113), 84627#(<= main_x 116), 84626#(<= main_x 115), 84629#(<= main_x 118), 84628#(<= main_x 117), 84631#(<= main_x 120), 84630#(<= main_x 119), 84633#(<= main_x 122), 84632#(<= main_x 121), 84635#(<= main_x 124), 84634#(<= main_x 123), 84637#(<= main_x 126), 84636#(<= main_x 125), 84639#(<= main_x 128), 84638#(<= main_x 127), 84641#(<= main_x 130), 84640#(<= main_x 129), 84643#(<= main_x 132), 84642#(<= main_x 131), 84645#(<= main_x 134), 84644#(<= main_x 133), 84647#(<= main_x 136), 84646#(<= main_x 135), 84649#(<= main_x 138), 84648#(<= main_x 137), 84651#(<= main_x 140), 84650#(<= main_x 139), 84653#(<= main_x 142), 84652#(<= main_x 141), 84655#(<= main_x 144), 84654#(<= main_x 143), 84657#(<= main_x 146), 84656#(<= main_x 145), 84659#(<= main_x 148), 84658#(<= main_x 147), 84661#(<= main_x 150), 84660#(<= main_x 149), 84663#(<= main_x 152), 84662#(<= main_x 151), 84665#(<= main_x 154), 84664#(<= main_x 153), 84667#(<= main_x 156), 84666#(<= main_x 155), 84669#(<= main_x 158), 84668#(<= main_x 157), 84671#(<= main_x 160), 84670#(<= main_x 159), 84673#(<= main_x 162), 84672#(<= main_x 161), 84675#(<= main_x 164), 84674#(<= main_x 163), 84677#(<= main_x 166), 84676#(<= main_x 165), 84679#(<= main_x 168), 84678#(<= main_x 167), 84681#(<= main_x 170), 84680#(<= main_x 169), 84683#(<= main_x 172), 84682#(<= main_x 171), 84685#(<= main_x 174), 84684#(<= main_x 173), 84687#(<= main_x 176), 84686#(<= main_x 175), 84689#(<= main_x 178), 84688#(<= main_x 177), 84690#(<= main_x 179)] [2018-07-23 13:56:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 16110 backedges. 0 proven. 16110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:18,386 INFO L450 AbstractCegarLoop]: Interpolant automaton has 182 states [2018-07-23 13:56:18,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2018-07-23 13:56:18,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16471, Invalid=16471, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:56:18,390 INFO L87 Difference]: Start difference. First operand 183 states and 183 transitions. Second operand 182 states. [2018-07-23 13:56:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:19,288 INFO L93 Difference]: Finished difference Result 186 states and 186 transitions. [2018-07-23 13:56:19,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2018-07-23 13:56:19,288 INFO L78 Accepts]: Start accepts. Automaton has 182 states. Word has length 182 [2018-07-23 13:56:19,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:19,289 INFO L225 Difference]: With dead ends: 186 [2018-07-23 13:56:19,289 INFO L226 Difference]: Without dead ends: 184 [2018-07-23 13:56:19,291 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16471, Invalid=16471, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:56:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-07-23 13:56:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-07-23 13:56:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-07-23 13:56:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2018-07-23 13:56:19,294 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 182 [2018-07-23 13:56:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:19,294 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2018-07-23 13:56:19,294 INFO L472 AbstractCegarLoop]: Interpolant automaton has 182 states. [2018-07-23 13:56:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2018-07-23 13:56:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-23 13:56:19,295 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:19,295 INFO L357 BasicCegarLoop]: trace histogram [180, 1, 1, 1] [2018-07-23 13:56:19,295 INFO L414 AbstractCegarLoop]: === Iteration 181 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:19,295 INFO L82 PathProgramCache]: Analyzing trace with hash -19943200, now seen corresponding path program 180 times [2018-07-23 13:56:19,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 16290 backedges. 0 proven. 16290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:20,374 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:20,375 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [182] total 182 [2018-07-23 13:56:20,375 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:20,375 INFO L185 omatonBuilderFactory]: Interpolants [85505#(<= main_x 72), 85504#(<= main_x 71), 85507#(<= main_x 74), 85506#(<= main_x 73), 85509#(<= main_x 76), 85508#(<= main_x 75), 85511#(<= main_x 78), 85510#(<= main_x 77), 85513#(<= main_x 80), 85512#(<= main_x 79), 85515#(<= main_x 82), 85514#(<= main_x 81), 85517#(<= main_x 84), 85516#(<= main_x 83), 85519#(<= main_x 86), 85518#(<= main_x 85), 85521#(<= main_x 88), 85520#(<= main_x 87), 85523#(<= main_x 90), 85522#(<= main_x 89), 85525#(<= main_x 92), 85524#(<= main_x 91), 85527#(<= main_x 94), 85526#(<= main_x 93), 85529#(<= main_x 96), 85528#(<= main_x 95), 85531#(<= main_x 98), 85530#(<= main_x 97), 85533#(<= main_x 100), 85532#(<= main_x 99), 85535#(<= main_x 102), 85534#(<= main_x 101), 85537#(<= main_x 104), 85536#(<= main_x 103), 85539#(<= main_x 106), 85538#(<= main_x 105), 85541#(<= main_x 108), 85540#(<= main_x 107), 85543#(<= main_x 110), 85542#(<= main_x 109), 85545#(<= main_x 112), 85544#(<= main_x 111), 85547#(<= main_x 114), 85546#(<= main_x 113), 85549#(<= main_x 116), 85548#(<= main_x 115), 85551#(<= main_x 118), 85550#(<= main_x 117), 85553#(<= main_x 120), 85552#(<= main_x 119), 85555#(<= main_x 122), 85554#(<= main_x 121), 85557#(<= main_x 124), 85556#(<= main_x 123), 85559#(<= main_x 126), 85558#(<= main_x 125), 85561#(<= main_x 128), 85560#(<= main_x 127), 85563#(<= main_x 130), 85562#(<= main_x 129), 85565#(<= main_x 132), 85564#(<= main_x 131), 85567#(<= main_x 134), 85566#(<= main_x 133), 85569#(<= main_x 136), 85568#(<= main_x 135), 85571#(<= main_x 138), 85570#(<= main_x 137), 85573#(<= main_x 140), 85572#(<= main_x 139), 85575#(<= main_x 142), 85574#(<= main_x 141), 85577#(<= main_x 144), 85576#(<= main_x 143), 85579#(<= main_x 146), 85578#(<= main_x 145), 85581#(<= main_x 148), 85580#(<= main_x 147), 85583#(<= main_x 150), 85582#(<= main_x 149), 85585#(<= main_x 152), 85584#(<= main_x 151), 85587#(<= main_x 154), 85586#(<= main_x 153), 85589#(<= main_x 156), 85588#(<= main_x 155), 85591#(<= main_x 158), 85590#(<= main_x 157), 85593#(<= main_x 160), 85592#(<= main_x 159), 85595#(<= main_x 162), 85594#(<= main_x 161), 85597#(<= main_x 164), 85596#(<= main_x 163), 85599#(<= main_x 166), 85598#(<= main_x 165), 85601#(<= main_x 168), 85600#(<= main_x 167), 85603#(<= main_x 170), 85602#(<= main_x 169), 85605#(<= main_x 172), 85604#(<= main_x 171), 85607#(<= main_x 174), 85606#(<= main_x 173), 85609#(<= main_x 176), 85608#(<= main_x 175), 85611#(<= main_x 178), 85610#(<= main_x 177), 85613#(<= main_x 180), 85612#(<= main_x 179), 85431#true, 85433#(<= main_x 0), 85432#false, 85435#(<= main_x 2), 85434#(<= main_x 1), 85437#(<= main_x 4), 85436#(<= main_x 3), 85439#(<= main_x 6), 85438#(<= main_x 5), 85441#(<= main_x 8), 85440#(<= main_x 7), 85443#(<= main_x 10), 85442#(<= main_x 9), 85445#(<= main_x 12), 85444#(<= main_x 11), 85447#(<= main_x 14), 85446#(<= main_x 13), 85449#(<= main_x 16), 85448#(<= main_x 15), 85451#(<= main_x 18), 85450#(<= main_x 17), 85453#(<= main_x 20), 85452#(<= main_x 19), 85455#(<= main_x 22), 85454#(<= main_x 21), 85457#(<= main_x 24), 85456#(<= main_x 23), 85459#(<= main_x 26), 85458#(<= main_x 25), 85461#(<= main_x 28), 85460#(<= main_x 27), 85463#(<= main_x 30), 85462#(<= main_x 29), 85465#(<= main_x 32), 85464#(<= main_x 31), 85467#(<= main_x 34), 85466#(<= main_x 33), 85469#(<= main_x 36), 85468#(<= main_x 35), 85471#(<= main_x 38), 85470#(<= main_x 37), 85473#(<= main_x 40), 85472#(<= main_x 39), 85475#(<= main_x 42), 85474#(<= main_x 41), 85477#(<= main_x 44), 85476#(<= main_x 43), 85479#(<= main_x 46), 85478#(<= main_x 45), 85481#(<= main_x 48), 85480#(<= main_x 47), 85483#(<= main_x 50), 85482#(<= main_x 49), 85485#(<= main_x 52), 85484#(<= main_x 51), 85487#(<= main_x 54), 85486#(<= main_x 53), 85489#(<= main_x 56), 85488#(<= main_x 55), 85491#(<= main_x 58), 85490#(<= main_x 57), 85493#(<= main_x 60), 85492#(<= main_x 59), 85495#(<= main_x 62), 85494#(<= main_x 61), 85497#(<= main_x 64), 85496#(<= main_x 63), 85499#(<= main_x 66), 85498#(<= main_x 65), 85501#(<= main_x 68), 85500#(<= main_x 67), 85503#(<= main_x 70), 85502#(<= main_x 69)] [2018-07-23 13:56:20,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16290 backedges. 0 proven. 16290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:20,377 INFO L450 AbstractCegarLoop]: Interpolant automaton has 183 states [2018-07-23 13:56:20,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2018-07-23 13:56:20,381 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16653, Invalid=16653, Unknown=0, NotChecked=0, Total=33306 [2018-07-23 13:56:20,381 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand 183 states. [2018-07-23 13:56:20,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:20,738 INFO L93 Difference]: Finished difference Result 187 states and 187 transitions. [2018-07-23 13:56:20,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2018-07-23 13:56:20,738 INFO L78 Accepts]: Start accepts. Automaton has 183 states. Word has length 183 [2018-07-23 13:56:20,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:20,738 INFO L225 Difference]: With dead ends: 187 [2018-07-23 13:56:20,739 INFO L226 Difference]: Without dead ends: 185 [2018-07-23 13:56:20,741 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16653, Invalid=16653, Unknown=0, NotChecked=0, Total=33306 [2018-07-23 13:56:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-07-23 13:56:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2018-07-23 13:56:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-07-23 13:56:20,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 185 transitions. [2018-07-23 13:56:20,744 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 185 transitions. Word has length 183 [2018-07-23 13:56:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:20,745 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 185 transitions. [2018-07-23 13:56:20,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 183 states. [2018-07-23 13:56:20,745 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 185 transitions. [2018-07-23 13:56:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-23 13:56:20,746 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:20,746 INFO L357 BasicCegarLoop]: trace histogram [181, 1, 1, 1] [2018-07-23 13:56:20,746 INFO L414 AbstractCegarLoop]: === Iteration 182 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:20,746 INFO L82 PathProgramCache]: Analyzing trace with hash -618243066, now seen corresponding path program 181 times [2018-07-23 13:56:20,746 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 16471 backedges. 0 proven. 16471 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:21,851 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:21,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [183] total 183 [2018-07-23 13:56:21,852 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:21,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:21,852 INFO L185 omatonBuilderFactory]: Interpolants [86529#(<= main_x 169), 86528#(<= main_x 168), 86531#(<= main_x 171), 86530#(<= main_x 170), 86533#(<= main_x 173), 86532#(<= main_x 172), 86535#(<= main_x 175), 86534#(<= main_x 174), 86537#(<= main_x 177), 86536#(<= main_x 176), 86539#(<= main_x 179), 86538#(<= main_x 178), 86541#(<= main_x 181), 86540#(<= main_x 180), 86359#false, 86358#true, 86361#(<= main_x 1), 86360#(<= main_x 0), 86363#(<= main_x 3), 86362#(<= main_x 2), 86365#(<= main_x 5), 86364#(<= main_x 4), 86367#(<= main_x 7), 86366#(<= main_x 6), 86369#(<= main_x 9), 86368#(<= main_x 8), 86371#(<= main_x 11), 86370#(<= main_x 10), 86373#(<= main_x 13), 86372#(<= main_x 12), 86375#(<= main_x 15), 86374#(<= main_x 14), 86377#(<= main_x 17), 86376#(<= main_x 16), 86379#(<= main_x 19), 86378#(<= main_x 18), 86381#(<= main_x 21), 86380#(<= main_x 20), 86383#(<= main_x 23), 86382#(<= main_x 22), 86385#(<= main_x 25), 86384#(<= main_x 24), 86387#(<= main_x 27), 86386#(<= main_x 26), 86389#(<= main_x 29), 86388#(<= main_x 28), 86391#(<= main_x 31), 86390#(<= main_x 30), 86393#(<= main_x 33), 86392#(<= main_x 32), 86395#(<= main_x 35), 86394#(<= main_x 34), 86397#(<= main_x 37), 86396#(<= main_x 36), 86399#(<= main_x 39), 86398#(<= main_x 38), 86401#(<= main_x 41), 86400#(<= main_x 40), 86403#(<= main_x 43), 86402#(<= main_x 42), 86405#(<= main_x 45), 86404#(<= main_x 44), 86407#(<= main_x 47), 86406#(<= main_x 46), 86409#(<= main_x 49), 86408#(<= main_x 48), 86411#(<= main_x 51), 86410#(<= main_x 50), 86413#(<= main_x 53), 86412#(<= main_x 52), 86415#(<= main_x 55), 86414#(<= main_x 54), 86417#(<= main_x 57), 86416#(<= main_x 56), 86419#(<= main_x 59), 86418#(<= main_x 58), 86421#(<= main_x 61), 86420#(<= main_x 60), 86423#(<= main_x 63), 86422#(<= main_x 62), 86425#(<= main_x 65), 86424#(<= main_x 64), 86427#(<= main_x 67), 86426#(<= main_x 66), 86429#(<= main_x 69), 86428#(<= main_x 68), 86431#(<= main_x 71), 86430#(<= main_x 70), 86433#(<= main_x 73), 86432#(<= main_x 72), 86435#(<= main_x 75), 86434#(<= main_x 74), 86437#(<= main_x 77), 86436#(<= main_x 76), 86439#(<= main_x 79), 86438#(<= main_x 78), 86441#(<= main_x 81), 86440#(<= main_x 80), 86443#(<= main_x 83), 86442#(<= main_x 82), 86445#(<= main_x 85), 86444#(<= main_x 84), 86447#(<= main_x 87), 86446#(<= main_x 86), 86449#(<= main_x 89), 86448#(<= main_x 88), 86451#(<= main_x 91), 86450#(<= main_x 90), 86453#(<= main_x 93), 86452#(<= main_x 92), 86455#(<= main_x 95), 86454#(<= main_x 94), 86457#(<= main_x 97), 86456#(<= main_x 96), 86459#(<= main_x 99), 86458#(<= main_x 98), 86461#(<= main_x 101), 86460#(<= main_x 100), 86463#(<= main_x 103), 86462#(<= main_x 102), 86465#(<= main_x 105), 86464#(<= main_x 104), 86467#(<= main_x 107), 86466#(<= main_x 106), 86469#(<= main_x 109), 86468#(<= main_x 108), 86471#(<= main_x 111), 86470#(<= main_x 110), 86473#(<= main_x 113), 86472#(<= main_x 112), 86475#(<= main_x 115), 86474#(<= main_x 114), 86477#(<= main_x 117), 86476#(<= main_x 116), 86479#(<= main_x 119), 86478#(<= main_x 118), 86481#(<= main_x 121), 86480#(<= main_x 120), 86483#(<= main_x 123), 86482#(<= main_x 122), 86485#(<= main_x 125), 86484#(<= main_x 124), 86487#(<= main_x 127), 86486#(<= main_x 126), 86489#(<= main_x 129), 86488#(<= main_x 128), 86491#(<= main_x 131), 86490#(<= main_x 130), 86493#(<= main_x 133), 86492#(<= main_x 132), 86495#(<= main_x 135), 86494#(<= main_x 134), 86497#(<= main_x 137), 86496#(<= main_x 136), 86499#(<= main_x 139), 86498#(<= main_x 138), 86501#(<= main_x 141), 86500#(<= main_x 140), 86503#(<= main_x 143), 86502#(<= main_x 142), 86505#(<= main_x 145), 86504#(<= main_x 144), 86507#(<= main_x 147), 86506#(<= main_x 146), 86509#(<= main_x 149), 86508#(<= main_x 148), 86511#(<= main_x 151), 86510#(<= main_x 150), 86513#(<= main_x 153), 86512#(<= main_x 152), 86515#(<= main_x 155), 86514#(<= main_x 154), 86517#(<= main_x 157), 86516#(<= main_x 156), 86519#(<= main_x 159), 86518#(<= main_x 158), 86521#(<= main_x 161), 86520#(<= main_x 160), 86523#(<= main_x 163), 86522#(<= main_x 162), 86525#(<= main_x 165), 86524#(<= main_x 164), 86527#(<= main_x 167), 86526#(<= main_x 166)] [2018-07-23 13:56:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 16471 backedges. 0 proven. 16471 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:21,854 INFO L450 AbstractCegarLoop]: Interpolant automaton has 184 states [2018-07-23 13:56:21,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2018-07-23 13:56:21,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2018-07-23 13:56:21,858 INFO L87 Difference]: Start difference. First operand 185 states and 185 transitions. Second operand 184 states. [2018-07-23 13:56:22,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:22,394 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2018-07-23 13:56:22,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2018-07-23 13:56:22,394 INFO L78 Accepts]: Start accepts. Automaton has 184 states. Word has length 184 [2018-07-23 13:56:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:22,395 INFO L225 Difference]: With dead ends: 188 [2018-07-23 13:56:22,395 INFO L226 Difference]: Without dead ends: 186 [2018-07-23 13:56:22,396 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2018-07-23 13:56:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-07-23 13:56:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2018-07-23 13:56:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-07-23 13:56:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2018-07-23 13:56:22,399 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 184 [2018-07-23 13:56:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:22,399 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2018-07-23 13:56:22,399 INFO L472 AbstractCegarLoop]: Interpolant automaton has 184 states. [2018-07-23 13:56:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2018-07-23 13:56:22,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-07-23 13:56:22,400 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:22,400 INFO L357 BasicCegarLoop]: trace histogram [182, 1, 1, 1] [2018-07-23 13:56:22,400 INFO L414 AbstractCegarLoop]: === Iteration 183 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:22,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1985669728, now seen corresponding path program 182 times [2018-07-23 13:56:22,400 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 16653 backedges. 0 proven. 16653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:23,426 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:23,426 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [184] total 184 [2018-07-23 13:56:23,426 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:23,427 INFO L185 omatonBuilderFactory]: Interpolants [87297#(<= main_x 5), 87296#(<= main_x 4), 87299#(<= main_x 7), 87298#(<= main_x 6), 87301#(<= main_x 9), 87300#(<= main_x 8), 87303#(<= main_x 11), 87302#(<= main_x 10), 87305#(<= main_x 13), 87304#(<= main_x 12), 87307#(<= main_x 15), 87306#(<= main_x 14), 87309#(<= main_x 17), 87308#(<= main_x 16), 87311#(<= main_x 19), 87310#(<= main_x 18), 87313#(<= main_x 21), 87312#(<= main_x 20), 87315#(<= main_x 23), 87314#(<= main_x 22), 87317#(<= main_x 25), 87316#(<= main_x 24), 87319#(<= main_x 27), 87318#(<= main_x 26), 87321#(<= main_x 29), 87320#(<= main_x 28), 87323#(<= main_x 31), 87322#(<= main_x 30), 87325#(<= main_x 33), 87324#(<= main_x 32), 87327#(<= main_x 35), 87326#(<= main_x 34), 87329#(<= main_x 37), 87328#(<= main_x 36), 87331#(<= main_x 39), 87330#(<= main_x 38), 87333#(<= main_x 41), 87332#(<= main_x 40), 87335#(<= main_x 43), 87334#(<= main_x 42), 87337#(<= main_x 45), 87336#(<= main_x 44), 87339#(<= main_x 47), 87338#(<= main_x 46), 87341#(<= main_x 49), 87340#(<= main_x 48), 87343#(<= main_x 51), 87342#(<= main_x 50), 87345#(<= main_x 53), 87344#(<= main_x 52), 87347#(<= main_x 55), 87346#(<= main_x 54), 87349#(<= main_x 57), 87348#(<= main_x 56), 87351#(<= main_x 59), 87350#(<= main_x 58), 87353#(<= main_x 61), 87352#(<= main_x 60), 87355#(<= main_x 63), 87354#(<= main_x 62), 87357#(<= main_x 65), 87356#(<= main_x 64), 87359#(<= main_x 67), 87358#(<= main_x 66), 87361#(<= main_x 69), 87360#(<= main_x 68), 87363#(<= main_x 71), 87362#(<= main_x 70), 87365#(<= main_x 73), 87364#(<= main_x 72), 87367#(<= main_x 75), 87366#(<= main_x 74), 87369#(<= main_x 77), 87368#(<= main_x 76), 87371#(<= main_x 79), 87370#(<= main_x 78), 87373#(<= main_x 81), 87372#(<= main_x 80), 87375#(<= main_x 83), 87374#(<= main_x 82), 87377#(<= main_x 85), 87376#(<= main_x 84), 87379#(<= main_x 87), 87378#(<= main_x 86), 87381#(<= main_x 89), 87380#(<= main_x 88), 87383#(<= main_x 91), 87382#(<= main_x 90), 87385#(<= main_x 93), 87384#(<= main_x 92), 87387#(<= main_x 95), 87386#(<= main_x 94), 87389#(<= main_x 97), 87388#(<= main_x 96), 87391#(<= main_x 99), 87390#(<= main_x 98), 87393#(<= main_x 101), 87392#(<= main_x 100), 87395#(<= main_x 103), 87394#(<= main_x 102), 87397#(<= main_x 105), 87396#(<= main_x 104), 87399#(<= main_x 107), 87398#(<= main_x 106), 87401#(<= main_x 109), 87400#(<= main_x 108), 87403#(<= main_x 111), 87402#(<= main_x 110), 87405#(<= main_x 113), 87404#(<= main_x 112), 87407#(<= main_x 115), 87406#(<= main_x 114), 87409#(<= main_x 117), 87408#(<= main_x 116), 87411#(<= main_x 119), 87410#(<= main_x 118), 87413#(<= main_x 121), 87412#(<= main_x 120), 87415#(<= main_x 123), 87414#(<= main_x 122), 87417#(<= main_x 125), 87416#(<= main_x 124), 87419#(<= main_x 127), 87418#(<= main_x 126), 87421#(<= main_x 129), 87420#(<= main_x 128), 87423#(<= main_x 131), 87422#(<= main_x 130), 87425#(<= main_x 133), 87424#(<= main_x 132), 87427#(<= main_x 135), 87426#(<= main_x 134), 87429#(<= main_x 137), 87428#(<= main_x 136), 87431#(<= main_x 139), 87430#(<= main_x 138), 87433#(<= main_x 141), 87432#(<= main_x 140), 87435#(<= main_x 143), 87434#(<= main_x 142), 87437#(<= main_x 145), 87436#(<= main_x 144), 87439#(<= main_x 147), 87438#(<= main_x 146), 87441#(<= main_x 149), 87440#(<= main_x 148), 87443#(<= main_x 151), 87442#(<= main_x 150), 87445#(<= main_x 153), 87444#(<= main_x 152), 87447#(<= main_x 155), 87446#(<= main_x 154), 87449#(<= main_x 157), 87448#(<= main_x 156), 87451#(<= main_x 159), 87450#(<= main_x 158), 87453#(<= main_x 161), 87452#(<= main_x 160), 87455#(<= main_x 163), 87454#(<= main_x 162), 87457#(<= main_x 165), 87456#(<= main_x 164), 87459#(<= main_x 167), 87458#(<= main_x 166), 87461#(<= main_x 169), 87460#(<= main_x 168), 87463#(<= main_x 171), 87462#(<= main_x 170), 87465#(<= main_x 173), 87464#(<= main_x 172), 87467#(<= main_x 175), 87466#(<= main_x 174), 87469#(<= main_x 177), 87468#(<= main_x 176), 87471#(<= main_x 179), 87470#(<= main_x 178), 87473#(<= main_x 181), 87472#(<= main_x 180), 87474#(<= main_x 182), 87291#false, 87290#true, 87293#(<= main_x 1), 87292#(<= main_x 0), 87295#(<= main_x 3), 87294#(<= main_x 2)] [2018-07-23 13:56:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 16653 backedges. 0 proven. 16653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:23,428 INFO L450 AbstractCegarLoop]: Interpolant automaton has 185 states [2018-07-23 13:56:23,429 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 185 interpolants. [2018-07-23 13:56:23,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17020, Invalid=17020, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:56:23,431 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand 185 states. [2018-07-23 13:56:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:24,180 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-07-23 13:56:24,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2018-07-23 13:56:24,180 INFO L78 Accepts]: Start accepts. Automaton has 185 states. Word has length 185 [2018-07-23 13:56:24,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:24,180 INFO L225 Difference]: With dead ends: 189 [2018-07-23 13:56:24,180 INFO L226 Difference]: Without dead ends: 187 [2018-07-23 13:56:24,182 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17020, Invalid=17020, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:56:24,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-07-23 13:56:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2018-07-23 13:56:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-07-23 13:56:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2018-07-23 13:56:24,184 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 185 [2018-07-23 13:56:24,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:24,184 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 187 transitions. [2018-07-23 13:56:24,184 INFO L472 AbstractCegarLoop]: Interpolant automaton has 185 states. [2018-07-23 13:56:24,184 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 187 transitions. [2018-07-23 13:56:24,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-07-23 13:56:24,185 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:24,185 INFO L357 BasicCegarLoop]: trace histogram [183, 1, 1, 1] [2018-07-23 13:56:24,185 INFO L414 AbstractCegarLoop]: === Iteration 184 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:24,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1426223290, now seen corresponding path program 183 times [2018-07-23 13:56:24,185 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 16836 backedges. 0 proven. 16836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:25,259 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:25,259 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [185] total 185 [2018-07-23 13:56:25,260 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:25,260 INFO L185 omatonBuilderFactory]: Interpolants [88321#(<= main_x 92), 88320#(<= main_x 91), 88323#(<= main_x 94), 88322#(<= main_x 93), 88325#(<= main_x 96), 88324#(<= main_x 95), 88327#(<= main_x 98), 88326#(<= main_x 97), 88329#(<= main_x 100), 88328#(<= main_x 99), 88331#(<= main_x 102), 88330#(<= main_x 101), 88333#(<= main_x 104), 88332#(<= main_x 103), 88335#(<= main_x 106), 88334#(<= main_x 105), 88337#(<= main_x 108), 88336#(<= main_x 107), 88339#(<= main_x 110), 88338#(<= main_x 109), 88341#(<= main_x 112), 88340#(<= main_x 111), 88343#(<= main_x 114), 88342#(<= main_x 113), 88345#(<= main_x 116), 88344#(<= main_x 115), 88347#(<= main_x 118), 88346#(<= main_x 117), 88349#(<= main_x 120), 88348#(<= main_x 119), 88351#(<= main_x 122), 88350#(<= main_x 121), 88353#(<= main_x 124), 88352#(<= main_x 123), 88355#(<= main_x 126), 88354#(<= main_x 125), 88357#(<= main_x 128), 88356#(<= main_x 127), 88359#(<= main_x 130), 88358#(<= main_x 129), 88361#(<= main_x 132), 88360#(<= main_x 131), 88363#(<= main_x 134), 88362#(<= main_x 133), 88365#(<= main_x 136), 88364#(<= main_x 135), 88367#(<= main_x 138), 88366#(<= main_x 137), 88369#(<= main_x 140), 88368#(<= main_x 139), 88371#(<= main_x 142), 88370#(<= main_x 141), 88373#(<= main_x 144), 88372#(<= main_x 143), 88375#(<= main_x 146), 88374#(<= main_x 145), 88377#(<= main_x 148), 88376#(<= main_x 147), 88379#(<= main_x 150), 88378#(<= main_x 149), 88381#(<= main_x 152), 88380#(<= main_x 151), 88383#(<= main_x 154), 88382#(<= main_x 153), 88385#(<= main_x 156), 88384#(<= main_x 155), 88387#(<= main_x 158), 88386#(<= main_x 157), 88389#(<= main_x 160), 88388#(<= main_x 159), 88391#(<= main_x 162), 88390#(<= main_x 161), 88393#(<= main_x 164), 88392#(<= main_x 163), 88395#(<= main_x 166), 88394#(<= main_x 165), 88397#(<= main_x 168), 88396#(<= main_x 167), 88399#(<= main_x 170), 88398#(<= main_x 169), 88401#(<= main_x 172), 88400#(<= main_x 171), 88403#(<= main_x 174), 88402#(<= main_x 173), 88405#(<= main_x 176), 88404#(<= main_x 175), 88407#(<= main_x 178), 88406#(<= main_x 177), 88409#(<= main_x 180), 88408#(<= main_x 179), 88411#(<= main_x 182), 88410#(<= main_x 181), 88412#(<= main_x 183), 88227#true, 88229#(<= main_x 0), 88228#false, 88231#(<= main_x 2), 88230#(<= main_x 1), 88233#(<= main_x 4), 88232#(<= main_x 3), 88235#(<= main_x 6), 88234#(<= main_x 5), 88237#(<= main_x 8), 88236#(<= main_x 7), 88239#(<= main_x 10), 88238#(<= main_x 9), 88241#(<= main_x 12), 88240#(<= main_x 11), 88243#(<= main_x 14), 88242#(<= main_x 13), 88245#(<= main_x 16), 88244#(<= main_x 15), 88247#(<= main_x 18), 88246#(<= main_x 17), 88249#(<= main_x 20), 88248#(<= main_x 19), 88251#(<= main_x 22), 88250#(<= main_x 21), 88253#(<= main_x 24), 88252#(<= main_x 23), 88255#(<= main_x 26), 88254#(<= main_x 25), 88257#(<= main_x 28), 88256#(<= main_x 27), 88259#(<= main_x 30), 88258#(<= main_x 29), 88261#(<= main_x 32), 88260#(<= main_x 31), 88263#(<= main_x 34), 88262#(<= main_x 33), 88265#(<= main_x 36), 88264#(<= main_x 35), 88267#(<= main_x 38), 88266#(<= main_x 37), 88269#(<= main_x 40), 88268#(<= main_x 39), 88271#(<= main_x 42), 88270#(<= main_x 41), 88273#(<= main_x 44), 88272#(<= main_x 43), 88275#(<= main_x 46), 88274#(<= main_x 45), 88277#(<= main_x 48), 88276#(<= main_x 47), 88279#(<= main_x 50), 88278#(<= main_x 49), 88281#(<= main_x 52), 88280#(<= main_x 51), 88283#(<= main_x 54), 88282#(<= main_x 53), 88285#(<= main_x 56), 88284#(<= main_x 55), 88287#(<= main_x 58), 88286#(<= main_x 57), 88289#(<= main_x 60), 88288#(<= main_x 59), 88291#(<= main_x 62), 88290#(<= main_x 61), 88293#(<= main_x 64), 88292#(<= main_x 63), 88295#(<= main_x 66), 88294#(<= main_x 65), 88297#(<= main_x 68), 88296#(<= main_x 67), 88299#(<= main_x 70), 88298#(<= main_x 69), 88301#(<= main_x 72), 88300#(<= main_x 71), 88303#(<= main_x 74), 88302#(<= main_x 73), 88305#(<= main_x 76), 88304#(<= main_x 75), 88307#(<= main_x 78), 88306#(<= main_x 77), 88309#(<= main_x 80), 88308#(<= main_x 79), 88311#(<= main_x 82), 88310#(<= main_x 81), 88313#(<= main_x 84), 88312#(<= main_x 83), 88315#(<= main_x 86), 88314#(<= main_x 85), 88317#(<= main_x 88), 88316#(<= main_x 87), 88319#(<= main_x 90), 88318#(<= main_x 89)] [2018-07-23 13:56:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 16836 backedges. 0 proven. 16836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:25,261 INFO L450 AbstractCegarLoop]: Interpolant automaton has 186 states [2018-07-23 13:56:25,264 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2018-07-23 13:56:25,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17205, Invalid=17205, Unknown=0, NotChecked=0, Total=34410 [2018-07-23 13:56:25,266 INFO L87 Difference]: Start difference. First operand 187 states and 187 transitions. Second operand 186 states. [2018-07-23 13:56:25,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:25,551 INFO L93 Difference]: Finished difference Result 190 states and 190 transitions. [2018-07-23 13:56:25,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2018-07-23 13:56:25,551 INFO L78 Accepts]: Start accepts. Automaton has 186 states. Word has length 186 [2018-07-23 13:56:25,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:25,552 INFO L225 Difference]: With dead ends: 190 [2018-07-23 13:56:25,552 INFO L226 Difference]: Without dead ends: 188 [2018-07-23 13:56:25,553 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17205, Invalid=17205, Unknown=0, NotChecked=0, Total=34410 [2018-07-23 13:56:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-07-23 13:56:25,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2018-07-23 13:56:25,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-07-23 13:56:25,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2018-07-23 13:56:25,556 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 186 [2018-07-23 13:56:25,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:25,556 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2018-07-23 13:56:25,556 INFO L472 AbstractCegarLoop]: Interpolant automaton has 186 states. [2018-07-23 13:56:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2018-07-23 13:56:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-23 13:56:25,556 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:25,557 INFO L357 BasicCegarLoop]: trace histogram [184, 1, 1, 1] [2018-07-23 13:56:25,557 INFO L414 AbstractCegarLoop]: === Iteration 185 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:25,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1263252896, now seen corresponding path program 184 times [2018-07-23 13:56:25,557 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 17020 backedges. 0 proven. 17020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:26,594 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:26,594 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [186] total 186 [2018-07-23 13:56:26,594 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:26,595 INFO L185 omatonBuilderFactory]: Interpolants [89345#(<= main_x 174), 89344#(<= main_x 173), 89347#(<= main_x 176), 89346#(<= main_x 175), 89349#(<= main_x 178), 89348#(<= main_x 177), 89351#(<= main_x 180), 89350#(<= main_x 179), 89353#(<= main_x 182), 89352#(<= main_x 181), 89355#(<= main_x 184), 89354#(<= main_x 183), 89169#true, 89171#(<= main_x 0), 89170#false, 89173#(<= main_x 2), 89172#(<= main_x 1), 89175#(<= main_x 4), 89174#(<= main_x 3), 89177#(<= main_x 6), 89176#(<= main_x 5), 89179#(<= main_x 8), 89178#(<= main_x 7), 89181#(<= main_x 10), 89180#(<= main_x 9), 89183#(<= main_x 12), 89182#(<= main_x 11), 89185#(<= main_x 14), 89184#(<= main_x 13), 89187#(<= main_x 16), 89186#(<= main_x 15), 89189#(<= main_x 18), 89188#(<= main_x 17), 89191#(<= main_x 20), 89190#(<= main_x 19), 89193#(<= main_x 22), 89192#(<= main_x 21), 89195#(<= main_x 24), 89194#(<= main_x 23), 89197#(<= main_x 26), 89196#(<= main_x 25), 89199#(<= main_x 28), 89198#(<= main_x 27), 89201#(<= main_x 30), 89200#(<= main_x 29), 89203#(<= main_x 32), 89202#(<= main_x 31), 89205#(<= main_x 34), 89204#(<= main_x 33), 89207#(<= main_x 36), 89206#(<= main_x 35), 89209#(<= main_x 38), 89208#(<= main_x 37), 89211#(<= main_x 40), 89210#(<= main_x 39), 89213#(<= main_x 42), 89212#(<= main_x 41), 89215#(<= main_x 44), 89214#(<= main_x 43), 89217#(<= main_x 46), 89216#(<= main_x 45), 89219#(<= main_x 48), 89218#(<= main_x 47), 89221#(<= main_x 50), 89220#(<= main_x 49), 89223#(<= main_x 52), 89222#(<= main_x 51), 89225#(<= main_x 54), 89224#(<= main_x 53), 89227#(<= main_x 56), 89226#(<= main_x 55), 89229#(<= main_x 58), 89228#(<= main_x 57), 89231#(<= main_x 60), 89230#(<= main_x 59), 89233#(<= main_x 62), 89232#(<= main_x 61), 89235#(<= main_x 64), 89234#(<= main_x 63), 89237#(<= main_x 66), 89236#(<= main_x 65), 89239#(<= main_x 68), 89238#(<= main_x 67), 89241#(<= main_x 70), 89240#(<= main_x 69), 89243#(<= main_x 72), 89242#(<= main_x 71), 89245#(<= main_x 74), 89244#(<= main_x 73), 89247#(<= main_x 76), 89246#(<= main_x 75), 89249#(<= main_x 78), 89248#(<= main_x 77), 89251#(<= main_x 80), 89250#(<= main_x 79), 89253#(<= main_x 82), 89252#(<= main_x 81), 89255#(<= main_x 84), 89254#(<= main_x 83), 89257#(<= main_x 86), 89256#(<= main_x 85), 89259#(<= main_x 88), 89258#(<= main_x 87), 89261#(<= main_x 90), 89260#(<= main_x 89), 89263#(<= main_x 92), 89262#(<= main_x 91), 89265#(<= main_x 94), 89264#(<= main_x 93), 89267#(<= main_x 96), 89266#(<= main_x 95), 89269#(<= main_x 98), 89268#(<= main_x 97), 89271#(<= main_x 100), 89270#(<= main_x 99), 89273#(<= main_x 102), 89272#(<= main_x 101), 89275#(<= main_x 104), 89274#(<= main_x 103), 89277#(<= main_x 106), 89276#(<= main_x 105), 89279#(<= main_x 108), 89278#(<= main_x 107), 89281#(<= main_x 110), 89280#(<= main_x 109), 89283#(<= main_x 112), 89282#(<= main_x 111), 89285#(<= main_x 114), 89284#(<= main_x 113), 89287#(<= main_x 116), 89286#(<= main_x 115), 89289#(<= main_x 118), 89288#(<= main_x 117), 89291#(<= main_x 120), 89290#(<= main_x 119), 89293#(<= main_x 122), 89292#(<= main_x 121), 89295#(<= main_x 124), 89294#(<= main_x 123), 89297#(<= main_x 126), 89296#(<= main_x 125), 89299#(<= main_x 128), 89298#(<= main_x 127), 89301#(<= main_x 130), 89300#(<= main_x 129), 89303#(<= main_x 132), 89302#(<= main_x 131), 89305#(<= main_x 134), 89304#(<= main_x 133), 89307#(<= main_x 136), 89306#(<= main_x 135), 89309#(<= main_x 138), 89308#(<= main_x 137), 89311#(<= main_x 140), 89310#(<= main_x 139), 89313#(<= main_x 142), 89312#(<= main_x 141), 89315#(<= main_x 144), 89314#(<= main_x 143), 89317#(<= main_x 146), 89316#(<= main_x 145), 89319#(<= main_x 148), 89318#(<= main_x 147), 89321#(<= main_x 150), 89320#(<= main_x 149), 89323#(<= main_x 152), 89322#(<= main_x 151), 89325#(<= main_x 154), 89324#(<= main_x 153), 89327#(<= main_x 156), 89326#(<= main_x 155), 89329#(<= main_x 158), 89328#(<= main_x 157), 89331#(<= main_x 160), 89330#(<= main_x 159), 89333#(<= main_x 162), 89332#(<= main_x 161), 89335#(<= main_x 164), 89334#(<= main_x 163), 89337#(<= main_x 166), 89336#(<= main_x 165), 89339#(<= main_x 168), 89338#(<= main_x 167), 89341#(<= main_x 170), 89340#(<= main_x 169), 89343#(<= main_x 172), 89342#(<= main_x 171)] [2018-07-23 13:56:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 17020 backedges. 0 proven. 17020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:26,596 INFO L450 AbstractCegarLoop]: Interpolant automaton has 187 states [2018-07-23 13:56:26,598 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 187 interpolants. [2018-07-23 13:56:26,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17391, Invalid=17391, Unknown=0, NotChecked=0, Total=34782 [2018-07-23 13:56:26,599 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 187 states. [2018-07-23 13:56:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:27,321 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2018-07-23 13:56:27,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2018-07-23 13:56:27,322 INFO L78 Accepts]: Start accepts. Automaton has 187 states. Word has length 187 [2018-07-23 13:56:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:27,322 INFO L225 Difference]: With dead ends: 191 [2018-07-23 13:56:27,322 INFO L226 Difference]: Without dead ends: 189 [2018-07-23 13:56:27,324 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17391, Invalid=17391, Unknown=0, NotChecked=0, Total=34782 [2018-07-23 13:56:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-07-23 13:56:27,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2018-07-23 13:56:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-07-23 13:56:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 189 transitions. [2018-07-23 13:56:27,326 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 189 transitions. Word has length 187 [2018-07-23 13:56:27,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:27,327 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 189 transitions. [2018-07-23 13:56:27,327 INFO L472 AbstractCegarLoop]: Interpolant automaton has 187 states. [2018-07-23 13:56:27,327 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 189 transitions. [2018-07-23 13:56:27,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-07-23 13:56:27,327 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:27,327 INFO L357 BasicCegarLoop]: trace histogram [185, 1, 1, 1] [2018-07-23 13:56:27,327 INFO L414 AbstractCegarLoop]: === Iteration 186 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:27,327 INFO L82 PathProgramCache]: Analyzing trace with hash -506137978, now seen corresponding path program 185 times [2018-07-23 13:56:27,328 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:28,300 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:28,300 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [187] total 187 [2018-07-23 13:56:28,300 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:28,300 INFO L185 omatonBuilderFactory]: Interpolants [90117#false, 90116#true, 90119#(<= main_x 1), 90118#(<= main_x 0), 90121#(<= main_x 3), 90120#(<= main_x 2), 90123#(<= main_x 5), 90122#(<= main_x 4), 90125#(<= main_x 7), 90124#(<= main_x 6), 90127#(<= main_x 9), 90126#(<= main_x 8), 90129#(<= main_x 11), 90128#(<= main_x 10), 90131#(<= main_x 13), 90130#(<= main_x 12), 90133#(<= main_x 15), 90132#(<= main_x 14), 90135#(<= main_x 17), 90134#(<= main_x 16), 90137#(<= main_x 19), 90136#(<= main_x 18), 90139#(<= main_x 21), 90138#(<= main_x 20), 90141#(<= main_x 23), 90140#(<= main_x 22), 90143#(<= main_x 25), 90142#(<= main_x 24), 90145#(<= main_x 27), 90144#(<= main_x 26), 90147#(<= main_x 29), 90146#(<= main_x 28), 90149#(<= main_x 31), 90148#(<= main_x 30), 90151#(<= main_x 33), 90150#(<= main_x 32), 90153#(<= main_x 35), 90152#(<= main_x 34), 90155#(<= main_x 37), 90154#(<= main_x 36), 90157#(<= main_x 39), 90156#(<= main_x 38), 90159#(<= main_x 41), 90158#(<= main_x 40), 90161#(<= main_x 43), 90160#(<= main_x 42), 90163#(<= main_x 45), 90162#(<= main_x 44), 90165#(<= main_x 47), 90164#(<= main_x 46), 90167#(<= main_x 49), 90166#(<= main_x 48), 90169#(<= main_x 51), 90168#(<= main_x 50), 90171#(<= main_x 53), 90170#(<= main_x 52), 90173#(<= main_x 55), 90172#(<= main_x 54), 90175#(<= main_x 57), 90174#(<= main_x 56), 90177#(<= main_x 59), 90176#(<= main_x 58), 90179#(<= main_x 61), 90178#(<= main_x 60), 90181#(<= main_x 63), 90180#(<= main_x 62), 90183#(<= main_x 65), 90182#(<= main_x 64), 90185#(<= main_x 67), 90184#(<= main_x 66), 90187#(<= main_x 69), 90186#(<= main_x 68), 90189#(<= main_x 71), 90188#(<= main_x 70), 90191#(<= main_x 73), 90190#(<= main_x 72), 90193#(<= main_x 75), 90192#(<= main_x 74), 90195#(<= main_x 77), 90194#(<= main_x 76), 90197#(<= main_x 79), 90196#(<= main_x 78), 90199#(<= main_x 81), 90198#(<= main_x 80), 90201#(<= main_x 83), 90200#(<= main_x 82), 90203#(<= main_x 85), 90202#(<= main_x 84), 90205#(<= main_x 87), 90204#(<= main_x 86), 90207#(<= main_x 89), 90206#(<= main_x 88), 90209#(<= main_x 91), 90208#(<= main_x 90), 90211#(<= main_x 93), 90210#(<= main_x 92), 90213#(<= main_x 95), 90212#(<= main_x 94), 90215#(<= main_x 97), 90214#(<= main_x 96), 90217#(<= main_x 99), 90216#(<= main_x 98), 90219#(<= main_x 101), 90218#(<= main_x 100), 90221#(<= main_x 103), 90220#(<= main_x 102), 90223#(<= main_x 105), 90222#(<= main_x 104), 90225#(<= main_x 107), 90224#(<= main_x 106), 90227#(<= main_x 109), 90226#(<= main_x 108), 90229#(<= main_x 111), 90228#(<= main_x 110), 90231#(<= main_x 113), 90230#(<= main_x 112), 90233#(<= main_x 115), 90232#(<= main_x 114), 90235#(<= main_x 117), 90234#(<= main_x 116), 90237#(<= main_x 119), 90236#(<= main_x 118), 90239#(<= main_x 121), 90238#(<= main_x 120), 90241#(<= main_x 123), 90240#(<= main_x 122), 90243#(<= main_x 125), 90242#(<= main_x 124), 90245#(<= main_x 127), 90244#(<= main_x 126), 90247#(<= main_x 129), 90246#(<= main_x 128), 90249#(<= main_x 131), 90248#(<= main_x 130), 90251#(<= main_x 133), 90250#(<= main_x 132), 90253#(<= main_x 135), 90252#(<= main_x 134), 90255#(<= main_x 137), 90254#(<= main_x 136), 90257#(<= main_x 139), 90256#(<= main_x 138), 90259#(<= main_x 141), 90258#(<= main_x 140), 90261#(<= main_x 143), 90260#(<= main_x 142), 90263#(<= main_x 145), 90262#(<= main_x 144), 90265#(<= main_x 147), 90264#(<= main_x 146), 90267#(<= main_x 149), 90266#(<= main_x 148), 90269#(<= main_x 151), 90268#(<= main_x 150), 90271#(<= main_x 153), 90270#(<= main_x 152), 90273#(<= main_x 155), 90272#(<= main_x 154), 90275#(<= main_x 157), 90274#(<= main_x 156), 90277#(<= main_x 159), 90276#(<= main_x 158), 90279#(<= main_x 161), 90278#(<= main_x 160), 90281#(<= main_x 163), 90280#(<= main_x 162), 90283#(<= main_x 165), 90282#(<= main_x 164), 90285#(<= main_x 167), 90284#(<= main_x 166), 90287#(<= main_x 169), 90286#(<= main_x 168), 90289#(<= main_x 171), 90288#(<= main_x 170), 90291#(<= main_x 173), 90290#(<= main_x 172), 90293#(<= main_x 175), 90292#(<= main_x 174), 90295#(<= main_x 177), 90294#(<= main_x 176), 90297#(<= main_x 179), 90296#(<= main_x 178), 90299#(<= main_x 181), 90298#(<= main_x 180), 90301#(<= main_x 183), 90300#(<= main_x 182), 90303#(<= main_x 185), 90302#(<= main_x 184)] [2018-07-23 13:56:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:28,301 INFO L450 AbstractCegarLoop]: Interpolant automaton has 188 states [2018-07-23 13:56:28,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2018-07-23 13:56:28,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17578, Invalid=17578, Unknown=0, NotChecked=0, Total=35156 [2018-07-23 13:56:28,304 INFO L87 Difference]: Start difference. First operand 189 states and 189 transitions. Second operand 188 states. [2018-07-23 13:56:29,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:29,028 INFO L93 Difference]: Finished difference Result 192 states and 192 transitions. [2018-07-23 13:56:29,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2018-07-23 13:56:29,029 INFO L78 Accepts]: Start accepts. Automaton has 188 states. Word has length 188 [2018-07-23 13:56:29,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:29,029 INFO L225 Difference]: With dead ends: 192 [2018-07-23 13:56:29,029 INFO L226 Difference]: Without dead ends: 190 [2018-07-23 13:56:29,030 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17578, Invalid=17578, Unknown=0, NotChecked=0, Total=35156 [2018-07-23 13:56:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-07-23 13:56:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2018-07-23 13:56:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-07-23 13:56:29,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 190 transitions. [2018-07-23 13:56:29,032 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 190 transitions. Word has length 188 [2018-07-23 13:56:29,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:29,032 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 190 transitions. [2018-07-23 13:56:29,032 INFO L472 AbstractCegarLoop]: Interpolant automaton has 188 states. [2018-07-23 13:56:29,032 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 190 transitions. [2018-07-23 13:56:29,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-23 13:56:29,033 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:29,033 INFO L357 BasicCegarLoop]: trace histogram [186, 1, 1, 1] [2018-07-23 13:56:29,033 INFO L414 AbstractCegarLoop]: === Iteration 187 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:29,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1489588000, now seen corresponding path program 186 times [2018-07-23 13:56:29,033 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:29,898 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:29,898 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:29,898 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [188] total 188 [2018-07-23 13:56:29,898 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:29,899 INFO L185 omatonBuilderFactory]: Interpolants [91137#(<= main_x 67), 91136#(<= main_x 66), 91139#(<= main_x 69), 91138#(<= main_x 68), 91141#(<= main_x 71), 91140#(<= main_x 70), 91143#(<= main_x 73), 91142#(<= main_x 72), 91145#(<= main_x 75), 91144#(<= main_x 74), 91147#(<= main_x 77), 91146#(<= main_x 76), 91149#(<= main_x 79), 91148#(<= main_x 78), 91151#(<= main_x 81), 91150#(<= main_x 80), 91153#(<= main_x 83), 91152#(<= main_x 82), 91155#(<= main_x 85), 91154#(<= main_x 84), 91157#(<= main_x 87), 91156#(<= main_x 86), 91159#(<= main_x 89), 91158#(<= main_x 88), 91161#(<= main_x 91), 91160#(<= main_x 90), 91163#(<= main_x 93), 91162#(<= main_x 92), 91165#(<= main_x 95), 91164#(<= main_x 94), 91167#(<= main_x 97), 91166#(<= main_x 96), 91169#(<= main_x 99), 91168#(<= main_x 98), 91171#(<= main_x 101), 91170#(<= main_x 100), 91173#(<= main_x 103), 91172#(<= main_x 102), 91175#(<= main_x 105), 91174#(<= main_x 104), 91177#(<= main_x 107), 91176#(<= main_x 106), 91179#(<= main_x 109), 91178#(<= main_x 108), 91181#(<= main_x 111), 91180#(<= main_x 110), 91183#(<= main_x 113), 91182#(<= main_x 112), 91185#(<= main_x 115), 91184#(<= main_x 114), 91187#(<= main_x 117), 91186#(<= main_x 116), 91189#(<= main_x 119), 91188#(<= main_x 118), 91191#(<= main_x 121), 91190#(<= main_x 120), 91193#(<= main_x 123), 91192#(<= main_x 122), 91195#(<= main_x 125), 91194#(<= main_x 124), 91197#(<= main_x 127), 91196#(<= main_x 126), 91199#(<= main_x 129), 91198#(<= main_x 128), 91201#(<= main_x 131), 91200#(<= main_x 130), 91203#(<= main_x 133), 91202#(<= main_x 132), 91205#(<= main_x 135), 91204#(<= main_x 134), 91207#(<= main_x 137), 91206#(<= main_x 136), 91209#(<= main_x 139), 91208#(<= main_x 138), 91211#(<= main_x 141), 91210#(<= main_x 140), 91213#(<= main_x 143), 91212#(<= main_x 142), 91215#(<= main_x 145), 91214#(<= main_x 144), 91217#(<= main_x 147), 91216#(<= main_x 146), 91219#(<= main_x 149), 91218#(<= main_x 148), 91221#(<= main_x 151), 91220#(<= main_x 150), 91223#(<= main_x 153), 91222#(<= main_x 152), 91225#(<= main_x 155), 91224#(<= main_x 154), 91227#(<= main_x 157), 91226#(<= main_x 156), 91229#(<= main_x 159), 91228#(<= main_x 158), 91231#(<= main_x 161), 91230#(<= main_x 160), 91233#(<= main_x 163), 91232#(<= main_x 162), 91235#(<= main_x 165), 91234#(<= main_x 164), 91237#(<= main_x 167), 91236#(<= main_x 166), 91239#(<= main_x 169), 91238#(<= main_x 168), 91241#(<= main_x 171), 91240#(<= main_x 170), 91243#(<= main_x 173), 91242#(<= main_x 172), 91245#(<= main_x 175), 91244#(<= main_x 174), 91247#(<= main_x 177), 91246#(<= main_x 176), 91249#(<= main_x 179), 91248#(<= main_x 178), 91251#(<= main_x 181), 91250#(<= main_x 180), 91253#(<= main_x 183), 91252#(<= main_x 182), 91255#(<= main_x 185), 91254#(<= main_x 184), 91256#(<= main_x 186), 91069#false, 91068#true, 91071#(<= main_x 1), 91070#(<= main_x 0), 91073#(<= main_x 3), 91072#(<= main_x 2), 91075#(<= main_x 5), 91074#(<= main_x 4), 91077#(<= main_x 7), 91076#(<= main_x 6), 91079#(<= main_x 9), 91078#(<= main_x 8), 91081#(<= main_x 11), 91080#(<= main_x 10), 91083#(<= main_x 13), 91082#(<= main_x 12), 91085#(<= main_x 15), 91084#(<= main_x 14), 91087#(<= main_x 17), 91086#(<= main_x 16), 91089#(<= main_x 19), 91088#(<= main_x 18), 91091#(<= main_x 21), 91090#(<= main_x 20), 91093#(<= main_x 23), 91092#(<= main_x 22), 91095#(<= main_x 25), 91094#(<= main_x 24), 91097#(<= main_x 27), 91096#(<= main_x 26), 91099#(<= main_x 29), 91098#(<= main_x 28), 91101#(<= main_x 31), 91100#(<= main_x 30), 91103#(<= main_x 33), 91102#(<= main_x 32), 91105#(<= main_x 35), 91104#(<= main_x 34), 91107#(<= main_x 37), 91106#(<= main_x 36), 91109#(<= main_x 39), 91108#(<= main_x 38), 91111#(<= main_x 41), 91110#(<= main_x 40), 91113#(<= main_x 43), 91112#(<= main_x 42), 91115#(<= main_x 45), 91114#(<= main_x 44), 91117#(<= main_x 47), 91116#(<= main_x 46), 91119#(<= main_x 49), 91118#(<= main_x 48), 91121#(<= main_x 51), 91120#(<= main_x 50), 91123#(<= main_x 53), 91122#(<= main_x 52), 91125#(<= main_x 55), 91124#(<= main_x 54), 91127#(<= main_x 57), 91126#(<= main_x 56), 91129#(<= main_x 59), 91128#(<= main_x 58), 91131#(<= main_x 61), 91130#(<= main_x 60), 91133#(<= main_x 63), 91132#(<= main_x 62), 91135#(<= main_x 65), 91134#(<= main_x 64)] [2018-07-23 13:56:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:29,900 INFO L450 AbstractCegarLoop]: Interpolant automaton has 189 states [2018-07-23 13:56:29,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2018-07-23 13:56:29,903 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17766, Invalid=17766, Unknown=0, NotChecked=0, Total=35532 [2018-07-23 13:56:29,903 INFO L87 Difference]: Start difference. First operand 190 states and 190 transitions. Second operand 189 states. [2018-07-23 13:56:30,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:30,292 INFO L93 Difference]: Finished difference Result 193 states and 193 transitions. [2018-07-23 13:56:30,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2018-07-23 13:56:30,292 INFO L78 Accepts]: Start accepts. Automaton has 189 states. Word has length 189 [2018-07-23 13:56:30,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:30,292 INFO L225 Difference]: With dead ends: 193 [2018-07-23 13:56:30,292 INFO L226 Difference]: Without dead ends: 191 [2018-07-23 13:56:30,294 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17766, Invalid=17766, Unknown=0, NotChecked=0, Total=35532 [2018-07-23 13:56:30,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-07-23 13:56:30,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2018-07-23 13:56:30,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-07-23 13:56:30,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2018-07-23 13:56:30,296 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 189 [2018-07-23 13:56:30,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:30,296 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2018-07-23 13:56:30,296 INFO L472 AbstractCegarLoop]: Interpolant automaton has 189 states. [2018-07-23 13:56:30,296 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2018-07-23 13:56:30,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-07-23 13:56:30,297 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:30,297 INFO L357 BasicCegarLoop]: trace histogram [187, 1, 1, 1] [2018-07-23 13:56:30,297 INFO L414 AbstractCegarLoop]: === Iteration 188 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:30,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1067416122, now seen corresponding path program 187 times [2018-07-23 13:56:30,297 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:31,146 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:31,146 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:31,147 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [189] total 189 [2018-07-23 13:56:31,147 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:31,147 INFO L185 omatonBuilderFactory]: Interpolants [92161#(<= main_x 134), 92160#(<= main_x 133), 92163#(<= main_x 136), 92162#(<= main_x 135), 92165#(<= main_x 138), 92164#(<= main_x 137), 92167#(<= main_x 140), 92166#(<= main_x 139), 92169#(<= main_x 142), 92168#(<= main_x 141), 92171#(<= main_x 144), 92170#(<= main_x 143), 92173#(<= main_x 146), 92172#(<= main_x 145), 92175#(<= main_x 148), 92174#(<= main_x 147), 92177#(<= main_x 150), 92176#(<= main_x 149), 92179#(<= main_x 152), 92178#(<= main_x 151), 92181#(<= main_x 154), 92180#(<= main_x 153), 92183#(<= main_x 156), 92182#(<= main_x 155), 92185#(<= main_x 158), 92184#(<= main_x 157), 92187#(<= main_x 160), 92186#(<= main_x 159), 92189#(<= main_x 162), 92188#(<= main_x 161), 92191#(<= main_x 164), 92190#(<= main_x 163), 92193#(<= main_x 166), 92192#(<= main_x 165), 92195#(<= main_x 168), 92194#(<= main_x 167), 92197#(<= main_x 170), 92196#(<= main_x 169), 92199#(<= main_x 172), 92198#(<= main_x 171), 92201#(<= main_x 174), 92200#(<= main_x 173), 92203#(<= main_x 176), 92202#(<= main_x 175), 92205#(<= main_x 178), 92204#(<= main_x 177), 92207#(<= main_x 180), 92206#(<= main_x 179), 92209#(<= main_x 182), 92208#(<= main_x 181), 92211#(<= main_x 184), 92210#(<= main_x 183), 92213#(<= main_x 186), 92212#(<= main_x 185), 92214#(<= main_x 187), 92025#true, 92027#(<= main_x 0), 92026#false, 92029#(<= main_x 2), 92028#(<= main_x 1), 92031#(<= main_x 4), 92030#(<= main_x 3), 92033#(<= main_x 6), 92032#(<= main_x 5), 92035#(<= main_x 8), 92034#(<= main_x 7), 92037#(<= main_x 10), 92036#(<= main_x 9), 92039#(<= main_x 12), 92038#(<= main_x 11), 92041#(<= main_x 14), 92040#(<= main_x 13), 92043#(<= main_x 16), 92042#(<= main_x 15), 92045#(<= main_x 18), 92044#(<= main_x 17), 92047#(<= main_x 20), 92046#(<= main_x 19), 92049#(<= main_x 22), 92048#(<= main_x 21), 92051#(<= main_x 24), 92050#(<= main_x 23), 92053#(<= main_x 26), 92052#(<= main_x 25), 92055#(<= main_x 28), 92054#(<= main_x 27), 92057#(<= main_x 30), 92056#(<= main_x 29), 92059#(<= main_x 32), 92058#(<= main_x 31), 92061#(<= main_x 34), 92060#(<= main_x 33), 92063#(<= main_x 36), 92062#(<= main_x 35), 92065#(<= main_x 38), 92064#(<= main_x 37), 92067#(<= main_x 40), 92066#(<= main_x 39), 92069#(<= main_x 42), 92068#(<= main_x 41), 92071#(<= main_x 44), 92070#(<= main_x 43), 92073#(<= main_x 46), 92072#(<= main_x 45), 92075#(<= main_x 48), 92074#(<= main_x 47), 92077#(<= main_x 50), 92076#(<= main_x 49), 92079#(<= main_x 52), 92078#(<= main_x 51), 92081#(<= main_x 54), 92080#(<= main_x 53), 92083#(<= main_x 56), 92082#(<= main_x 55), 92085#(<= main_x 58), 92084#(<= main_x 57), 92087#(<= main_x 60), 92086#(<= main_x 59), 92089#(<= main_x 62), 92088#(<= main_x 61), 92091#(<= main_x 64), 92090#(<= main_x 63), 92093#(<= main_x 66), 92092#(<= main_x 65), 92095#(<= main_x 68), 92094#(<= main_x 67), 92097#(<= main_x 70), 92096#(<= main_x 69), 92099#(<= main_x 72), 92098#(<= main_x 71), 92101#(<= main_x 74), 92100#(<= main_x 73), 92103#(<= main_x 76), 92102#(<= main_x 75), 92105#(<= main_x 78), 92104#(<= main_x 77), 92107#(<= main_x 80), 92106#(<= main_x 79), 92109#(<= main_x 82), 92108#(<= main_x 81), 92111#(<= main_x 84), 92110#(<= main_x 83), 92113#(<= main_x 86), 92112#(<= main_x 85), 92115#(<= main_x 88), 92114#(<= main_x 87), 92117#(<= main_x 90), 92116#(<= main_x 89), 92119#(<= main_x 92), 92118#(<= main_x 91), 92121#(<= main_x 94), 92120#(<= main_x 93), 92123#(<= main_x 96), 92122#(<= main_x 95), 92125#(<= main_x 98), 92124#(<= main_x 97), 92127#(<= main_x 100), 92126#(<= main_x 99), 92129#(<= main_x 102), 92128#(<= main_x 101), 92131#(<= main_x 104), 92130#(<= main_x 103), 92133#(<= main_x 106), 92132#(<= main_x 105), 92135#(<= main_x 108), 92134#(<= main_x 107), 92137#(<= main_x 110), 92136#(<= main_x 109), 92139#(<= main_x 112), 92138#(<= main_x 111), 92141#(<= main_x 114), 92140#(<= main_x 113), 92143#(<= main_x 116), 92142#(<= main_x 115), 92145#(<= main_x 118), 92144#(<= main_x 117), 92147#(<= main_x 120), 92146#(<= main_x 119), 92149#(<= main_x 122), 92148#(<= main_x 121), 92151#(<= main_x 124), 92150#(<= main_x 123), 92153#(<= main_x 126), 92152#(<= main_x 125), 92155#(<= main_x 128), 92154#(<= main_x 127), 92157#(<= main_x 130), 92156#(<= main_x 129), 92159#(<= main_x 132), 92158#(<= main_x 131)] [2018-07-23 13:56:31,148 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:31,148 INFO L450 AbstractCegarLoop]: Interpolant automaton has 190 states [2018-07-23 13:56:31,150 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2018-07-23 13:56:31,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17955, Invalid=17955, Unknown=0, NotChecked=0, Total=35910 [2018-07-23 13:56:31,151 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand 190 states. [2018-07-23 13:56:31,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:31,450 INFO L93 Difference]: Finished difference Result 194 states and 194 transitions. [2018-07-23 13:56:31,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2018-07-23 13:56:31,450 INFO L78 Accepts]: Start accepts. Automaton has 190 states. Word has length 190 [2018-07-23 13:56:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:31,450 INFO L225 Difference]: With dead ends: 194 [2018-07-23 13:56:31,451 INFO L226 Difference]: Without dead ends: 192 [2018-07-23 13:56:31,452 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17955, Invalid=17955, Unknown=0, NotChecked=0, Total=35910 [2018-07-23 13:56:31,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-07-23 13:56:31,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2018-07-23 13:56:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-07-23 13:56:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 192 transitions. [2018-07-23 13:56:31,454 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 192 transitions. Word has length 190 [2018-07-23 13:56:31,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:31,454 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 192 transitions. [2018-07-23 13:56:31,454 INFO L472 AbstractCegarLoop]: Interpolant automaton has 190 states. [2018-07-23 13:56:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 192 transitions. [2018-07-23 13:56:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-23 13:56:31,455 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:31,455 INFO L357 BasicCegarLoop]: trace histogram [188, 1, 1, 1] [2018-07-23 13:56:31,455 INFO L414 AbstractCegarLoop]: === Iteration 189 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:31,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1269834720, now seen corresponding path program 188 times [2018-07-23 13:56:31,455 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 17766 backedges. 0 proven. 17766 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:32,377 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:32,377 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [190] total 190 [2018-07-23 13:56:32,377 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:32,378 INFO L185 omatonBuilderFactory]: Interpolants [92987#true, 92989#(<= main_x 0), 92988#false, 92991#(<= main_x 2), 92990#(<= main_x 1), 92993#(<= main_x 4), 92992#(<= main_x 3), 92995#(<= main_x 6), 92994#(<= main_x 5), 92997#(<= main_x 8), 92996#(<= main_x 7), 92999#(<= main_x 10), 92998#(<= main_x 9), 93001#(<= main_x 12), 93000#(<= main_x 11), 93003#(<= main_x 14), 93002#(<= main_x 13), 93005#(<= main_x 16), 93004#(<= main_x 15), 93007#(<= main_x 18), 93006#(<= main_x 17), 93009#(<= main_x 20), 93008#(<= main_x 19), 93011#(<= main_x 22), 93010#(<= main_x 21), 93013#(<= main_x 24), 93012#(<= main_x 23), 93015#(<= main_x 26), 93014#(<= main_x 25), 93017#(<= main_x 28), 93016#(<= main_x 27), 93019#(<= main_x 30), 93018#(<= main_x 29), 93021#(<= main_x 32), 93020#(<= main_x 31), 93023#(<= main_x 34), 93022#(<= main_x 33), 93025#(<= main_x 36), 93024#(<= main_x 35), 93027#(<= main_x 38), 93026#(<= main_x 37), 93029#(<= main_x 40), 93028#(<= main_x 39), 93031#(<= main_x 42), 93030#(<= main_x 41), 93033#(<= main_x 44), 93032#(<= main_x 43), 93035#(<= main_x 46), 93034#(<= main_x 45), 93037#(<= main_x 48), 93036#(<= main_x 47), 93039#(<= main_x 50), 93038#(<= main_x 49), 93041#(<= main_x 52), 93040#(<= main_x 51), 93043#(<= main_x 54), 93042#(<= main_x 53), 93045#(<= main_x 56), 93044#(<= main_x 55), 93047#(<= main_x 58), 93046#(<= main_x 57), 93049#(<= main_x 60), 93048#(<= main_x 59), 93051#(<= main_x 62), 93050#(<= main_x 61), 93053#(<= main_x 64), 93052#(<= main_x 63), 93055#(<= main_x 66), 93054#(<= main_x 65), 93057#(<= main_x 68), 93056#(<= main_x 67), 93059#(<= main_x 70), 93058#(<= main_x 69), 93061#(<= main_x 72), 93060#(<= main_x 71), 93063#(<= main_x 74), 93062#(<= main_x 73), 93065#(<= main_x 76), 93064#(<= main_x 75), 93067#(<= main_x 78), 93066#(<= main_x 77), 93069#(<= main_x 80), 93068#(<= main_x 79), 93071#(<= main_x 82), 93070#(<= main_x 81), 93073#(<= main_x 84), 93072#(<= main_x 83), 93075#(<= main_x 86), 93074#(<= main_x 85), 93077#(<= main_x 88), 93076#(<= main_x 87), 93079#(<= main_x 90), 93078#(<= main_x 89), 93081#(<= main_x 92), 93080#(<= main_x 91), 93083#(<= main_x 94), 93082#(<= main_x 93), 93085#(<= main_x 96), 93084#(<= main_x 95), 93087#(<= main_x 98), 93086#(<= main_x 97), 93089#(<= main_x 100), 93088#(<= main_x 99), 93091#(<= main_x 102), 93090#(<= main_x 101), 93093#(<= main_x 104), 93092#(<= main_x 103), 93095#(<= main_x 106), 93094#(<= main_x 105), 93097#(<= main_x 108), 93096#(<= main_x 107), 93099#(<= main_x 110), 93098#(<= main_x 109), 93101#(<= main_x 112), 93100#(<= main_x 111), 93103#(<= main_x 114), 93102#(<= main_x 113), 93105#(<= main_x 116), 93104#(<= main_x 115), 93107#(<= main_x 118), 93106#(<= main_x 117), 93109#(<= main_x 120), 93108#(<= main_x 119), 93111#(<= main_x 122), 93110#(<= main_x 121), 93113#(<= main_x 124), 93112#(<= main_x 123), 93115#(<= main_x 126), 93114#(<= main_x 125), 93117#(<= main_x 128), 93116#(<= main_x 127), 93119#(<= main_x 130), 93118#(<= main_x 129), 93121#(<= main_x 132), 93120#(<= main_x 131), 93123#(<= main_x 134), 93122#(<= main_x 133), 93125#(<= main_x 136), 93124#(<= main_x 135), 93127#(<= main_x 138), 93126#(<= main_x 137), 93129#(<= main_x 140), 93128#(<= main_x 139), 93131#(<= main_x 142), 93130#(<= main_x 141), 93133#(<= main_x 144), 93132#(<= main_x 143), 93135#(<= main_x 146), 93134#(<= main_x 145), 93137#(<= main_x 148), 93136#(<= main_x 147), 93139#(<= main_x 150), 93138#(<= main_x 149), 93141#(<= main_x 152), 93140#(<= main_x 151), 93143#(<= main_x 154), 93142#(<= main_x 153), 93145#(<= main_x 156), 93144#(<= main_x 155), 93147#(<= main_x 158), 93146#(<= main_x 157), 93149#(<= main_x 160), 93148#(<= main_x 159), 93151#(<= main_x 162), 93150#(<= main_x 161), 93153#(<= main_x 164), 93152#(<= main_x 163), 93155#(<= main_x 166), 93154#(<= main_x 165), 93157#(<= main_x 168), 93156#(<= main_x 167), 93159#(<= main_x 170), 93158#(<= main_x 169), 93161#(<= main_x 172), 93160#(<= main_x 171), 93163#(<= main_x 174), 93162#(<= main_x 173), 93165#(<= main_x 176), 93164#(<= main_x 175), 93167#(<= main_x 178), 93166#(<= main_x 177), 93169#(<= main_x 180), 93168#(<= main_x 179), 93171#(<= main_x 182), 93170#(<= main_x 181), 93173#(<= main_x 184), 93172#(<= main_x 183), 93175#(<= main_x 186), 93174#(<= main_x 185), 93177#(<= main_x 188), 93176#(<= main_x 187)] [2018-07-23 13:56:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 17766 backedges. 0 proven. 17766 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:32,379 INFO L450 AbstractCegarLoop]: Interpolant automaton has 191 states [2018-07-23 13:56:32,381 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2018-07-23 13:56:32,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2018-07-23 13:56:32,382 INFO L87 Difference]: Start difference. First operand 192 states and 192 transitions. Second operand 191 states. [2018-07-23 13:56:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:33,330 INFO L93 Difference]: Finished difference Result 195 states and 195 transitions. [2018-07-23 13:56:33,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2018-07-23 13:56:33,330 INFO L78 Accepts]: Start accepts. Automaton has 191 states. Word has length 191 [2018-07-23 13:56:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:33,331 INFO L225 Difference]: With dead ends: 195 [2018-07-23 13:56:33,331 INFO L226 Difference]: Without dead ends: 193 [2018-07-23 13:56:33,333 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2018-07-23 13:56:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-07-23 13:56:33,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2018-07-23 13:56:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-07-23 13:56:33,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 193 transitions. [2018-07-23 13:56:33,336 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 193 transitions. Word has length 191 [2018-07-23 13:56:33,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:33,337 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 193 transitions. [2018-07-23 13:56:33,337 INFO L472 AbstractCegarLoop]: Interpolant automaton has 191 states. [2018-07-23 13:56:33,337 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 193 transitions. [2018-07-23 13:56:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-07-23 13:56:33,337 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:33,338 INFO L357 BasicCegarLoop]: trace histogram [189, 1, 1, 1] [2018-07-23 13:56:33,338 INFO L414 AbstractCegarLoop]: === Iteration 190 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:33,338 INFO L82 PathProgramCache]: Analyzing trace with hash 710166790, now seen corresponding path program 189 times [2018-07-23 13:56:33,338 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 17955 backedges. 0 proven. 17955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:34,512 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:34,512 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [191] total 191 [2018-07-23 13:56:34,512 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:34,513 INFO L185 omatonBuilderFactory]: Interpolants [93955#false, 93954#true, 93957#(<= main_x 1), 93956#(<= main_x 0), 93959#(<= main_x 3), 93958#(<= main_x 2), 93961#(<= main_x 5), 93960#(<= main_x 4), 93963#(<= main_x 7), 93962#(<= main_x 6), 93965#(<= main_x 9), 93964#(<= main_x 8), 93967#(<= main_x 11), 93966#(<= main_x 10), 93969#(<= main_x 13), 93968#(<= main_x 12), 93971#(<= main_x 15), 93970#(<= main_x 14), 93973#(<= main_x 17), 93972#(<= main_x 16), 93975#(<= main_x 19), 93974#(<= main_x 18), 93977#(<= main_x 21), 93976#(<= main_x 20), 93979#(<= main_x 23), 93978#(<= main_x 22), 93981#(<= main_x 25), 93980#(<= main_x 24), 93983#(<= main_x 27), 93982#(<= main_x 26), 93985#(<= main_x 29), 93984#(<= main_x 28), 93987#(<= main_x 31), 93986#(<= main_x 30), 93989#(<= main_x 33), 93988#(<= main_x 32), 93991#(<= main_x 35), 93990#(<= main_x 34), 93993#(<= main_x 37), 93992#(<= main_x 36), 93995#(<= main_x 39), 93994#(<= main_x 38), 93997#(<= main_x 41), 93996#(<= main_x 40), 93999#(<= main_x 43), 93998#(<= main_x 42), 94001#(<= main_x 45), 94000#(<= main_x 44), 94003#(<= main_x 47), 94002#(<= main_x 46), 94005#(<= main_x 49), 94004#(<= main_x 48), 94007#(<= main_x 51), 94006#(<= main_x 50), 94009#(<= main_x 53), 94008#(<= main_x 52), 94011#(<= main_x 55), 94010#(<= main_x 54), 94013#(<= main_x 57), 94012#(<= main_x 56), 94015#(<= main_x 59), 94014#(<= main_x 58), 94017#(<= main_x 61), 94016#(<= main_x 60), 94019#(<= main_x 63), 94018#(<= main_x 62), 94021#(<= main_x 65), 94020#(<= main_x 64), 94023#(<= main_x 67), 94022#(<= main_x 66), 94025#(<= main_x 69), 94024#(<= main_x 68), 94027#(<= main_x 71), 94026#(<= main_x 70), 94029#(<= main_x 73), 94028#(<= main_x 72), 94031#(<= main_x 75), 94030#(<= main_x 74), 94033#(<= main_x 77), 94032#(<= main_x 76), 94035#(<= main_x 79), 94034#(<= main_x 78), 94037#(<= main_x 81), 94036#(<= main_x 80), 94039#(<= main_x 83), 94038#(<= main_x 82), 94041#(<= main_x 85), 94040#(<= main_x 84), 94043#(<= main_x 87), 94042#(<= main_x 86), 94045#(<= main_x 89), 94044#(<= main_x 88), 94047#(<= main_x 91), 94046#(<= main_x 90), 94049#(<= main_x 93), 94048#(<= main_x 92), 94051#(<= main_x 95), 94050#(<= main_x 94), 94053#(<= main_x 97), 94052#(<= main_x 96), 94055#(<= main_x 99), 94054#(<= main_x 98), 94057#(<= main_x 101), 94056#(<= main_x 100), 94059#(<= main_x 103), 94058#(<= main_x 102), 94061#(<= main_x 105), 94060#(<= main_x 104), 94063#(<= main_x 107), 94062#(<= main_x 106), 94065#(<= main_x 109), 94064#(<= main_x 108), 94067#(<= main_x 111), 94066#(<= main_x 110), 94069#(<= main_x 113), 94068#(<= main_x 112), 94071#(<= main_x 115), 94070#(<= main_x 114), 94073#(<= main_x 117), 94072#(<= main_x 116), 94075#(<= main_x 119), 94074#(<= main_x 118), 94077#(<= main_x 121), 94076#(<= main_x 120), 94079#(<= main_x 123), 94078#(<= main_x 122), 94081#(<= main_x 125), 94080#(<= main_x 124), 94083#(<= main_x 127), 94082#(<= main_x 126), 94085#(<= main_x 129), 94084#(<= main_x 128), 94087#(<= main_x 131), 94086#(<= main_x 130), 94089#(<= main_x 133), 94088#(<= main_x 132), 94091#(<= main_x 135), 94090#(<= main_x 134), 94093#(<= main_x 137), 94092#(<= main_x 136), 94095#(<= main_x 139), 94094#(<= main_x 138), 94097#(<= main_x 141), 94096#(<= main_x 140), 94099#(<= main_x 143), 94098#(<= main_x 142), 94101#(<= main_x 145), 94100#(<= main_x 144), 94103#(<= main_x 147), 94102#(<= main_x 146), 94105#(<= main_x 149), 94104#(<= main_x 148), 94107#(<= main_x 151), 94106#(<= main_x 150), 94109#(<= main_x 153), 94108#(<= main_x 152), 94111#(<= main_x 155), 94110#(<= main_x 154), 94113#(<= main_x 157), 94112#(<= main_x 156), 94115#(<= main_x 159), 94114#(<= main_x 158), 94117#(<= main_x 161), 94116#(<= main_x 160), 94119#(<= main_x 163), 94118#(<= main_x 162), 94121#(<= main_x 165), 94120#(<= main_x 164), 94123#(<= main_x 167), 94122#(<= main_x 166), 94125#(<= main_x 169), 94124#(<= main_x 168), 94127#(<= main_x 171), 94126#(<= main_x 170), 94129#(<= main_x 173), 94128#(<= main_x 172), 94131#(<= main_x 175), 94130#(<= main_x 174), 94133#(<= main_x 177), 94132#(<= main_x 176), 94135#(<= main_x 179), 94134#(<= main_x 178), 94137#(<= main_x 181), 94136#(<= main_x 180), 94139#(<= main_x 183), 94138#(<= main_x 182), 94141#(<= main_x 185), 94140#(<= main_x 184), 94143#(<= main_x 187), 94142#(<= main_x 186), 94145#(<= main_x 189), 94144#(<= main_x 188)] [2018-07-23 13:56:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 17955 backedges. 0 proven. 17955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:34,514 INFO L450 AbstractCegarLoop]: Interpolant automaton has 192 states [2018-07-23 13:56:34,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2018-07-23 13:56:34,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2018-07-23 13:56:34,517 INFO L87 Difference]: Start difference. First operand 193 states and 193 transitions. Second operand 192 states. [2018-07-23 13:56:35,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:35,659 INFO L93 Difference]: Finished difference Result 196 states and 196 transitions. [2018-07-23 13:56:35,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2018-07-23 13:56:35,659 INFO L78 Accepts]: Start accepts. Automaton has 192 states. Word has length 192 [2018-07-23 13:56:35,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:35,660 INFO L225 Difference]: With dead ends: 196 [2018-07-23 13:56:35,660 INFO L226 Difference]: Without dead ends: 194 [2018-07-23 13:56:35,661 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2018-07-23 13:56:35,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-07-23 13:56:35,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2018-07-23 13:56:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-07-23 13:56:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2018-07-23 13:56:35,664 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 192 [2018-07-23 13:56:35,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:35,665 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2018-07-23 13:56:35,665 INFO L472 AbstractCegarLoop]: Interpolant automaton has 192 states. [2018-07-23 13:56:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2018-07-23 13:56:35,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-07-23 13:56:35,666 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:35,666 INFO L357 BasicCegarLoop]: trace histogram [190, 1, 1, 1] [2018-07-23 13:56:35,666 INFO L414 AbstractCegarLoop]: === Iteration 191 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:35,666 INFO L82 PathProgramCache]: Analyzing trace with hash 540330144, now seen corresponding path program 190 times [2018-07-23 13:56:35,666 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 18145 backedges. 0 proven. 18145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:36,695 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:36,695 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [192] total 192 [2018-07-23 13:56:36,695 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:36,695 INFO L185 omatonBuilderFactory]: Interpolants [94927#false, 94926#true, 94929#(<= main_x 1), 94928#(<= main_x 0), 94931#(<= main_x 3), 94930#(<= main_x 2), 94933#(<= main_x 5), 94932#(<= main_x 4), 94935#(<= main_x 7), 94934#(<= main_x 6), 94937#(<= main_x 9), 94936#(<= main_x 8), 94939#(<= main_x 11), 94938#(<= main_x 10), 94941#(<= main_x 13), 94940#(<= main_x 12), 94943#(<= main_x 15), 94942#(<= main_x 14), 94945#(<= main_x 17), 94944#(<= main_x 16), 94947#(<= main_x 19), 94946#(<= main_x 18), 94949#(<= main_x 21), 94948#(<= main_x 20), 94951#(<= main_x 23), 94950#(<= main_x 22), 94953#(<= main_x 25), 94952#(<= main_x 24), 94955#(<= main_x 27), 94954#(<= main_x 26), 94957#(<= main_x 29), 94956#(<= main_x 28), 94959#(<= main_x 31), 94958#(<= main_x 30), 94961#(<= main_x 33), 94960#(<= main_x 32), 94963#(<= main_x 35), 94962#(<= main_x 34), 94965#(<= main_x 37), 94964#(<= main_x 36), 94967#(<= main_x 39), 94966#(<= main_x 38), 94969#(<= main_x 41), 94968#(<= main_x 40), 94971#(<= main_x 43), 94970#(<= main_x 42), 94973#(<= main_x 45), 94972#(<= main_x 44), 94975#(<= main_x 47), 94974#(<= main_x 46), 94977#(<= main_x 49), 94976#(<= main_x 48), 94979#(<= main_x 51), 94978#(<= main_x 50), 94981#(<= main_x 53), 94980#(<= main_x 52), 94983#(<= main_x 55), 94982#(<= main_x 54), 94985#(<= main_x 57), 94984#(<= main_x 56), 94987#(<= main_x 59), 94986#(<= main_x 58), 94989#(<= main_x 61), 94988#(<= main_x 60), 94991#(<= main_x 63), 94990#(<= main_x 62), 94993#(<= main_x 65), 94992#(<= main_x 64), 94995#(<= main_x 67), 94994#(<= main_x 66), 94997#(<= main_x 69), 94996#(<= main_x 68), 94999#(<= main_x 71), 94998#(<= main_x 70), 95001#(<= main_x 73), 95000#(<= main_x 72), 95003#(<= main_x 75), 95002#(<= main_x 74), 95005#(<= main_x 77), 95004#(<= main_x 76), 95007#(<= main_x 79), 95006#(<= main_x 78), 95009#(<= main_x 81), 95008#(<= main_x 80), 95011#(<= main_x 83), 95010#(<= main_x 82), 95013#(<= main_x 85), 95012#(<= main_x 84), 95015#(<= main_x 87), 95014#(<= main_x 86), 95017#(<= main_x 89), 95016#(<= main_x 88), 95019#(<= main_x 91), 95018#(<= main_x 90), 95021#(<= main_x 93), 95020#(<= main_x 92), 95023#(<= main_x 95), 95022#(<= main_x 94), 95025#(<= main_x 97), 95024#(<= main_x 96), 95027#(<= main_x 99), 95026#(<= main_x 98), 95029#(<= main_x 101), 95028#(<= main_x 100), 95031#(<= main_x 103), 95030#(<= main_x 102), 95033#(<= main_x 105), 95032#(<= main_x 104), 95035#(<= main_x 107), 95034#(<= main_x 106), 95037#(<= main_x 109), 95036#(<= main_x 108), 95039#(<= main_x 111), 95038#(<= main_x 110), 95041#(<= main_x 113), 95040#(<= main_x 112), 95043#(<= main_x 115), 95042#(<= main_x 114), 95045#(<= main_x 117), 95044#(<= main_x 116), 95047#(<= main_x 119), 95046#(<= main_x 118), 95049#(<= main_x 121), 95048#(<= main_x 120), 95051#(<= main_x 123), 95050#(<= main_x 122), 95053#(<= main_x 125), 95052#(<= main_x 124), 95055#(<= main_x 127), 95054#(<= main_x 126), 95057#(<= main_x 129), 95056#(<= main_x 128), 95059#(<= main_x 131), 95058#(<= main_x 130), 95061#(<= main_x 133), 95060#(<= main_x 132), 95063#(<= main_x 135), 95062#(<= main_x 134), 95065#(<= main_x 137), 95064#(<= main_x 136), 95067#(<= main_x 139), 95066#(<= main_x 138), 95069#(<= main_x 141), 95068#(<= main_x 140), 95071#(<= main_x 143), 95070#(<= main_x 142), 95073#(<= main_x 145), 95072#(<= main_x 144), 95075#(<= main_x 147), 95074#(<= main_x 146), 95077#(<= main_x 149), 95076#(<= main_x 148), 95079#(<= main_x 151), 95078#(<= main_x 150), 95081#(<= main_x 153), 95080#(<= main_x 152), 95083#(<= main_x 155), 95082#(<= main_x 154), 95085#(<= main_x 157), 95084#(<= main_x 156), 95087#(<= main_x 159), 95086#(<= main_x 158), 95089#(<= main_x 161), 95088#(<= main_x 160), 95091#(<= main_x 163), 95090#(<= main_x 162), 95093#(<= main_x 165), 95092#(<= main_x 164), 95095#(<= main_x 167), 95094#(<= main_x 166), 95097#(<= main_x 169), 95096#(<= main_x 168), 95099#(<= main_x 171), 95098#(<= main_x 170), 95101#(<= main_x 173), 95100#(<= main_x 172), 95103#(<= main_x 175), 95102#(<= main_x 174), 95105#(<= main_x 177), 95104#(<= main_x 176), 95107#(<= main_x 179), 95106#(<= main_x 178), 95109#(<= main_x 181), 95108#(<= main_x 180), 95111#(<= main_x 183), 95110#(<= main_x 182), 95113#(<= main_x 185), 95112#(<= main_x 184), 95115#(<= main_x 187), 95114#(<= main_x 186), 95117#(<= main_x 189), 95116#(<= main_x 188), 95118#(<= main_x 190)] [2018-07-23 13:56:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18145 backedges. 0 proven. 18145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:36,697 INFO L450 AbstractCegarLoop]: Interpolant automaton has 193 states [2018-07-23 13:56:36,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2018-07-23 13:56:36,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2018-07-23 13:56:36,701 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand 193 states. [2018-07-23 13:56:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:37,273 INFO L93 Difference]: Finished difference Result 197 states and 197 transitions. [2018-07-23 13:56:37,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2018-07-23 13:56:37,273 INFO L78 Accepts]: Start accepts. Automaton has 193 states. Word has length 193 [2018-07-23 13:56:37,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:37,273 INFO L225 Difference]: With dead ends: 197 [2018-07-23 13:56:37,273 INFO L226 Difference]: Without dead ends: 195 [2018-07-23 13:56:37,275 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2018-07-23 13:56:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-07-23 13:56:37,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2018-07-23 13:56:37,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-07-23 13:56:37,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2018-07-23 13:56:37,277 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 193 [2018-07-23 13:56:37,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:37,277 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 195 transitions. [2018-07-23 13:56:37,277 INFO L472 AbstractCegarLoop]: Interpolant automaton has 193 states. [2018-07-23 13:56:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 195 transitions. [2018-07-23 13:56:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-07-23 13:56:37,278 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:37,278 INFO L357 BasicCegarLoop]: trace histogram [191, 1, 1, 1] [2018-07-23 13:56:37,278 INFO L414 AbstractCegarLoop]: === Iteration 192 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:37,278 INFO L82 PathProgramCache]: Analyzing trace with hash -429638586, now seen corresponding path program 191 times [2018-07-23 13:56:37,278 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 18336 backedges. 0 proven. 18336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:38,284 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:38,285 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [193] total 193 [2018-07-23 13:56:38,285 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:38,286 INFO L185 omatonBuilderFactory]: Interpolants [95903#true, 95905#(<= main_x 0), 95904#false, 95907#(<= main_x 2), 95906#(<= main_x 1), 95909#(<= main_x 4), 95908#(<= main_x 3), 95911#(<= main_x 6), 95910#(<= main_x 5), 95913#(<= main_x 8), 95912#(<= main_x 7), 95915#(<= main_x 10), 95914#(<= main_x 9), 95917#(<= main_x 12), 95916#(<= main_x 11), 95919#(<= main_x 14), 95918#(<= main_x 13), 95921#(<= main_x 16), 95920#(<= main_x 15), 95923#(<= main_x 18), 95922#(<= main_x 17), 95925#(<= main_x 20), 95924#(<= main_x 19), 95927#(<= main_x 22), 95926#(<= main_x 21), 95929#(<= main_x 24), 95928#(<= main_x 23), 95931#(<= main_x 26), 95930#(<= main_x 25), 95933#(<= main_x 28), 95932#(<= main_x 27), 95935#(<= main_x 30), 95934#(<= main_x 29), 95937#(<= main_x 32), 95936#(<= main_x 31), 95939#(<= main_x 34), 95938#(<= main_x 33), 95941#(<= main_x 36), 95940#(<= main_x 35), 95943#(<= main_x 38), 95942#(<= main_x 37), 95945#(<= main_x 40), 95944#(<= main_x 39), 95947#(<= main_x 42), 95946#(<= main_x 41), 95949#(<= main_x 44), 95948#(<= main_x 43), 95951#(<= main_x 46), 95950#(<= main_x 45), 95953#(<= main_x 48), 95952#(<= main_x 47), 95955#(<= main_x 50), 95954#(<= main_x 49), 95957#(<= main_x 52), 95956#(<= main_x 51), 95959#(<= main_x 54), 95958#(<= main_x 53), 95961#(<= main_x 56), 95960#(<= main_x 55), 95963#(<= main_x 58), 95962#(<= main_x 57), 95965#(<= main_x 60), 95964#(<= main_x 59), 95967#(<= main_x 62), 95966#(<= main_x 61), 95969#(<= main_x 64), 95968#(<= main_x 63), 95971#(<= main_x 66), 95970#(<= main_x 65), 95973#(<= main_x 68), 95972#(<= main_x 67), 95975#(<= main_x 70), 95974#(<= main_x 69), 95977#(<= main_x 72), 95976#(<= main_x 71), 95979#(<= main_x 74), 95978#(<= main_x 73), 95981#(<= main_x 76), 95980#(<= main_x 75), 95983#(<= main_x 78), 95982#(<= main_x 77), 95985#(<= main_x 80), 95984#(<= main_x 79), 95987#(<= main_x 82), 95986#(<= main_x 81), 95989#(<= main_x 84), 95988#(<= main_x 83), 95991#(<= main_x 86), 95990#(<= main_x 85), 95993#(<= main_x 88), 95992#(<= main_x 87), 95995#(<= main_x 90), 95994#(<= main_x 89), 95997#(<= main_x 92), 95996#(<= main_x 91), 95999#(<= main_x 94), 95998#(<= main_x 93), 96001#(<= main_x 96), 96000#(<= main_x 95), 96003#(<= main_x 98), 96002#(<= main_x 97), 96005#(<= main_x 100), 96004#(<= main_x 99), 96007#(<= main_x 102), 96006#(<= main_x 101), 96009#(<= main_x 104), 96008#(<= main_x 103), 96011#(<= main_x 106), 96010#(<= main_x 105), 96013#(<= main_x 108), 96012#(<= main_x 107), 96015#(<= main_x 110), 96014#(<= main_x 109), 96017#(<= main_x 112), 96016#(<= main_x 111), 96019#(<= main_x 114), 96018#(<= main_x 113), 96021#(<= main_x 116), 96020#(<= main_x 115), 96023#(<= main_x 118), 96022#(<= main_x 117), 96025#(<= main_x 120), 96024#(<= main_x 119), 96027#(<= main_x 122), 96026#(<= main_x 121), 96029#(<= main_x 124), 96028#(<= main_x 123), 96031#(<= main_x 126), 96030#(<= main_x 125), 96033#(<= main_x 128), 96032#(<= main_x 127), 96035#(<= main_x 130), 96034#(<= main_x 129), 96037#(<= main_x 132), 96036#(<= main_x 131), 96039#(<= main_x 134), 96038#(<= main_x 133), 96041#(<= main_x 136), 96040#(<= main_x 135), 96043#(<= main_x 138), 96042#(<= main_x 137), 96045#(<= main_x 140), 96044#(<= main_x 139), 96047#(<= main_x 142), 96046#(<= main_x 141), 96049#(<= main_x 144), 96048#(<= main_x 143), 96051#(<= main_x 146), 96050#(<= main_x 145), 96053#(<= main_x 148), 96052#(<= main_x 147), 96055#(<= main_x 150), 96054#(<= main_x 149), 96057#(<= main_x 152), 96056#(<= main_x 151), 96059#(<= main_x 154), 96058#(<= main_x 153), 96061#(<= main_x 156), 96060#(<= main_x 155), 96063#(<= main_x 158), 96062#(<= main_x 157), 96065#(<= main_x 160), 96064#(<= main_x 159), 96067#(<= main_x 162), 96066#(<= main_x 161), 96069#(<= main_x 164), 96068#(<= main_x 163), 96071#(<= main_x 166), 96070#(<= main_x 165), 96073#(<= main_x 168), 96072#(<= main_x 167), 96075#(<= main_x 170), 96074#(<= main_x 169), 96077#(<= main_x 172), 96076#(<= main_x 171), 96079#(<= main_x 174), 96078#(<= main_x 173), 96081#(<= main_x 176), 96080#(<= main_x 175), 96083#(<= main_x 178), 96082#(<= main_x 177), 96085#(<= main_x 180), 96084#(<= main_x 179), 96087#(<= main_x 182), 96086#(<= main_x 181), 96089#(<= main_x 184), 96088#(<= main_x 183), 96091#(<= main_x 186), 96090#(<= main_x 185), 96093#(<= main_x 188), 96092#(<= main_x 187), 96095#(<= main_x 190), 96094#(<= main_x 189), 96096#(<= main_x 191)] [2018-07-23 13:56:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 18336 backedges. 0 proven. 18336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:38,287 INFO L450 AbstractCegarLoop]: Interpolant automaton has 194 states [2018-07-23 13:56:38,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2018-07-23 13:56:38,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18721, Invalid=18721, Unknown=0, NotChecked=0, Total=37442 [2018-07-23 13:56:38,292 INFO L87 Difference]: Start difference. First operand 195 states and 195 transitions. Second operand 194 states. [2018-07-23 13:56:38,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:38,562 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2018-07-23 13:56:38,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2018-07-23 13:56:38,562 INFO L78 Accepts]: Start accepts. Automaton has 194 states. Word has length 194 [2018-07-23 13:56:38,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:38,563 INFO L225 Difference]: With dead ends: 198 [2018-07-23 13:56:38,563 INFO L226 Difference]: Without dead ends: 196 [2018-07-23 13:56:38,565 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18721, Invalid=18721, Unknown=0, NotChecked=0, Total=37442 [2018-07-23 13:56:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-07-23 13:56:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2018-07-23 13:56:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-07-23 13:56:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 196 transitions. [2018-07-23 13:56:38,569 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 196 transitions. Word has length 194 [2018-07-23 13:56:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:38,569 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 196 transitions. [2018-07-23 13:56:38,569 INFO L472 AbstractCegarLoop]: Interpolant automaton has 194 states. [2018-07-23 13:56:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 196 transitions. [2018-07-23 13:56:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-07-23 13:56:38,570 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:38,570 INFO L357 BasicCegarLoop]: trace histogram [192, 1, 1, 1] [2018-07-23 13:56:38,570 INFO L414 AbstractCegarLoop]: === Iteration 193 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:38,570 INFO L82 PathProgramCache]: Analyzing trace with hash -433898144, now seen corresponding path program 192 times [2018-07-23 13:56:38,571 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 18528 backedges. 0 proven. 18528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:39,515 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:39,515 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [194] total 194 [2018-07-23 13:56:39,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:39,516 INFO L185 omatonBuilderFactory]: Interpolants [96885#true, 96887#(<= main_x 0), 96886#false, 96889#(<= main_x 2), 96888#(<= main_x 1), 96891#(<= main_x 4), 96890#(<= main_x 3), 96893#(<= main_x 6), 96892#(<= main_x 5), 96895#(<= main_x 8), 96894#(<= main_x 7), 96897#(<= main_x 10), 96896#(<= main_x 9), 96899#(<= main_x 12), 96898#(<= main_x 11), 96901#(<= main_x 14), 96900#(<= main_x 13), 96903#(<= main_x 16), 96902#(<= main_x 15), 96905#(<= main_x 18), 96904#(<= main_x 17), 96907#(<= main_x 20), 96906#(<= main_x 19), 96909#(<= main_x 22), 96908#(<= main_x 21), 96911#(<= main_x 24), 96910#(<= main_x 23), 96913#(<= main_x 26), 96912#(<= main_x 25), 96915#(<= main_x 28), 96914#(<= main_x 27), 96917#(<= main_x 30), 96916#(<= main_x 29), 96919#(<= main_x 32), 96918#(<= main_x 31), 96921#(<= main_x 34), 96920#(<= main_x 33), 96923#(<= main_x 36), 96922#(<= main_x 35), 96925#(<= main_x 38), 96924#(<= main_x 37), 96927#(<= main_x 40), 96926#(<= main_x 39), 96929#(<= main_x 42), 96928#(<= main_x 41), 96931#(<= main_x 44), 96930#(<= main_x 43), 96933#(<= main_x 46), 96932#(<= main_x 45), 96935#(<= main_x 48), 96934#(<= main_x 47), 96937#(<= main_x 50), 96936#(<= main_x 49), 96939#(<= main_x 52), 96938#(<= main_x 51), 96941#(<= main_x 54), 96940#(<= main_x 53), 96943#(<= main_x 56), 96942#(<= main_x 55), 96945#(<= main_x 58), 96944#(<= main_x 57), 96947#(<= main_x 60), 96946#(<= main_x 59), 96949#(<= main_x 62), 96948#(<= main_x 61), 96951#(<= main_x 64), 96950#(<= main_x 63), 96953#(<= main_x 66), 96952#(<= main_x 65), 96955#(<= main_x 68), 96954#(<= main_x 67), 96957#(<= main_x 70), 96956#(<= main_x 69), 96959#(<= main_x 72), 96958#(<= main_x 71), 96961#(<= main_x 74), 96960#(<= main_x 73), 96963#(<= main_x 76), 96962#(<= main_x 75), 96965#(<= main_x 78), 96964#(<= main_x 77), 96967#(<= main_x 80), 96966#(<= main_x 79), 96969#(<= main_x 82), 96968#(<= main_x 81), 96971#(<= main_x 84), 96970#(<= main_x 83), 96973#(<= main_x 86), 96972#(<= main_x 85), 96975#(<= main_x 88), 96974#(<= main_x 87), 96977#(<= main_x 90), 96976#(<= main_x 89), 96979#(<= main_x 92), 96978#(<= main_x 91), 96981#(<= main_x 94), 96980#(<= main_x 93), 96983#(<= main_x 96), 96982#(<= main_x 95), 96985#(<= main_x 98), 96984#(<= main_x 97), 96987#(<= main_x 100), 96986#(<= main_x 99), 96989#(<= main_x 102), 96988#(<= main_x 101), 96991#(<= main_x 104), 96990#(<= main_x 103), 96993#(<= main_x 106), 96992#(<= main_x 105), 96995#(<= main_x 108), 96994#(<= main_x 107), 96997#(<= main_x 110), 96996#(<= main_x 109), 96999#(<= main_x 112), 96998#(<= main_x 111), 97001#(<= main_x 114), 97000#(<= main_x 113), 97003#(<= main_x 116), 97002#(<= main_x 115), 97005#(<= main_x 118), 97004#(<= main_x 117), 97007#(<= main_x 120), 97006#(<= main_x 119), 97009#(<= main_x 122), 97008#(<= main_x 121), 97011#(<= main_x 124), 97010#(<= main_x 123), 97013#(<= main_x 126), 97012#(<= main_x 125), 97015#(<= main_x 128), 97014#(<= main_x 127), 97017#(<= main_x 130), 97016#(<= main_x 129), 97019#(<= main_x 132), 97018#(<= main_x 131), 97021#(<= main_x 134), 97020#(<= main_x 133), 97023#(<= main_x 136), 97022#(<= main_x 135), 97025#(<= main_x 138), 97024#(<= main_x 137), 97027#(<= main_x 140), 97026#(<= main_x 139), 97029#(<= main_x 142), 97028#(<= main_x 141), 97031#(<= main_x 144), 97030#(<= main_x 143), 97033#(<= main_x 146), 97032#(<= main_x 145), 97035#(<= main_x 148), 97034#(<= main_x 147), 97037#(<= main_x 150), 97036#(<= main_x 149), 97039#(<= main_x 152), 97038#(<= main_x 151), 97041#(<= main_x 154), 97040#(<= main_x 153), 97043#(<= main_x 156), 97042#(<= main_x 155), 97045#(<= main_x 158), 97044#(<= main_x 157), 97047#(<= main_x 160), 97046#(<= main_x 159), 97049#(<= main_x 162), 97048#(<= main_x 161), 97051#(<= main_x 164), 97050#(<= main_x 163), 97053#(<= main_x 166), 97052#(<= main_x 165), 97055#(<= main_x 168), 97054#(<= main_x 167), 97057#(<= main_x 170), 97056#(<= main_x 169), 97059#(<= main_x 172), 97058#(<= main_x 171), 97061#(<= main_x 174), 97060#(<= main_x 173), 97063#(<= main_x 176), 97062#(<= main_x 175), 97065#(<= main_x 178), 97064#(<= main_x 177), 97067#(<= main_x 180), 97066#(<= main_x 179), 97069#(<= main_x 182), 97068#(<= main_x 181), 97071#(<= main_x 184), 97070#(<= main_x 183), 97073#(<= main_x 186), 97072#(<= main_x 185), 97075#(<= main_x 188), 97074#(<= main_x 187), 97077#(<= main_x 190), 97076#(<= main_x 189), 97079#(<= main_x 192), 97078#(<= main_x 191)] [2018-07-23 13:56:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 18528 backedges. 0 proven. 18528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:39,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 195 states [2018-07-23 13:56:39,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 195 interpolants. [2018-07-23 13:56:39,520 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18915, Invalid=18915, Unknown=0, NotChecked=0, Total=37830 [2018-07-23 13:56:39,520 INFO L87 Difference]: Start difference. First operand 196 states and 196 transitions. Second operand 195 states. [2018-07-23 13:56:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:39,867 INFO L93 Difference]: Finished difference Result 199 states and 199 transitions. [2018-07-23 13:56:39,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2018-07-23 13:56:39,868 INFO L78 Accepts]: Start accepts. Automaton has 195 states. Word has length 195 [2018-07-23 13:56:39,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:39,868 INFO L225 Difference]: With dead ends: 199 [2018-07-23 13:56:39,868 INFO L226 Difference]: Without dead ends: 197 [2018-07-23 13:56:39,870 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18915, Invalid=18915, Unknown=0, NotChecked=0, Total=37830 [2018-07-23 13:56:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-07-23 13:56:39,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2018-07-23 13:56:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-07-23 13:56:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 197 transitions. [2018-07-23 13:56:39,872 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 197 transitions. Word has length 195 [2018-07-23 13:56:39,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:39,872 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 197 transitions. [2018-07-23 13:56:39,872 INFO L472 AbstractCegarLoop]: Interpolant automaton has 195 states. [2018-07-23 13:56:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 197 transitions. [2018-07-23 13:56:39,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-07-23 13:56:39,873 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:39,873 INFO L357 BasicCegarLoop]: trace histogram [193, 1, 1, 1] [2018-07-23 13:56:39,873 INFO L414 AbstractCegarLoop]: === Iteration 194 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:39,873 INFO L82 PathProgramCache]: Analyzing trace with hash -565944442, now seen corresponding path program 193 times [2018-07-23 13:56:39,873 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 18721 backedges. 0 proven. 18721 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:40,844 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:40,844 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [195] total 195 [2018-07-23 13:56:40,844 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:40,844 INFO L185 omatonBuilderFactory]: Interpolants [97873#false, 97872#true, 97875#(<= main_x 1), 97874#(<= main_x 0), 97877#(<= main_x 3), 97876#(<= main_x 2), 97879#(<= main_x 5), 97878#(<= main_x 4), 97881#(<= main_x 7), 97880#(<= main_x 6), 97883#(<= main_x 9), 97882#(<= main_x 8), 97885#(<= main_x 11), 97884#(<= main_x 10), 97887#(<= main_x 13), 97886#(<= main_x 12), 97889#(<= main_x 15), 97888#(<= main_x 14), 97891#(<= main_x 17), 97890#(<= main_x 16), 97893#(<= main_x 19), 97892#(<= main_x 18), 97895#(<= main_x 21), 97894#(<= main_x 20), 97897#(<= main_x 23), 97896#(<= main_x 22), 97899#(<= main_x 25), 97898#(<= main_x 24), 97901#(<= main_x 27), 97900#(<= main_x 26), 97903#(<= main_x 29), 97902#(<= main_x 28), 97905#(<= main_x 31), 97904#(<= main_x 30), 97907#(<= main_x 33), 97906#(<= main_x 32), 97909#(<= main_x 35), 97908#(<= main_x 34), 97911#(<= main_x 37), 97910#(<= main_x 36), 97913#(<= main_x 39), 97912#(<= main_x 38), 97915#(<= main_x 41), 97914#(<= main_x 40), 97917#(<= main_x 43), 97916#(<= main_x 42), 97919#(<= main_x 45), 97918#(<= main_x 44), 97921#(<= main_x 47), 97920#(<= main_x 46), 97923#(<= main_x 49), 97922#(<= main_x 48), 97925#(<= main_x 51), 97924#(<= main_x 50), 97927#(<= main_x 53), 97926#(<= main_x 52), 97929#(<= main_x 55), 97928#(<= main_x 54), 97931#(<= main_x 57), 97930#(<= main_x 56), 97933#(<= main_x 59), 97932#(<= main_x 58), 97935#(<= main_x 61), 97934#(<= main_x 60), 97937#(<= main_x 63), 97936#(<= main_x 62), 97939#(<= main_x 65), 97938#(<= main_x 64), 97941#(<= main_x 67), 97940#(<= main_x 66), 97943#(<= main_x 69), 97942#(<= main_x 68), 97945#(<= main_x 71), 97944#(<= main_x 70), 97947#(<= main_x 73), 97946#(<= main_x 72), 97949#(<= main_x 75), 97948#(<= main_x 74), 97951#(<= main_x 77), 97950#(<= main_x 76), 97953#(<= main_x 79), 97952#(<= main_x 78), 97955#(<= main_x 81), 97954#(<= main_x 80), 97957#(<= main_x 83), 97956#(<= main_x 82), 97959#(<= main_x 85), 97958#(<= main_x 84), 97961#(<= main_x 87), 97960#(<= main_x 86), 97963#(<= main_x 89), 97962#(<= main_x 88), 97965#(<= main_x 91), 97964#(<= main_x 90), 97967#(<= main_x 93), 97966#(<= main_x 92), 97969#(<= main_x 95), 97968#(<= main_x 94), 97971#(<= main_x 97), 97970#(<= main_x 96), 97973#(<= main_x 99), 97972#(<= main_x 98), 97975#(<= main_x 101), 97974#(<= main_x 100), 97977#(<= main_x 103), 97976#(<= main_x 102), 97979#(<= main_x 105), 97978#(<= main_x 104), 97981#(<= main_x 107), 97980#(<= main_x 106), 97983#(<= main_x 109), 97982#(<= main_x 108), 97985#(<= main_x 111), 97984#(<= main_x 110), 97987#(<= main_x 113), 97986#(<= main_x 112), 97989#(<= main_x 115), 97988#(<= main_x 114), 97991#(<= main_x 117), 97990#(<= main_x 116), 97993#(<= main_x 119), 97992#(<= main_x 118), 97995#(<= main_x 121), 97994#(<= main_x 120), 97997#(<= main_x 123), 97996#(<= main_x 122), 97999#(<= main_x 125), 97998#(<= main_x 124), 98001#(<= main_x 127), 98000#(<= main_x 126), 98003#(<= main_x 129), 98002#(<= main_x 128), 98005#(<= main_x 131), 98004#(<= main_x 130), 98007#(<= main_x 133), 98006#(<= main_x 132), 98009#(<= main_x 135), 98008#(<= main_x 134), 98011#(<= main_x 137), 98010#(<= main_x 136), 98013#(<= main_x 139), 98012#(<= main_x 138), 98015#(<= main_x 141), 98014#(<= main_x 140), 98017#(<= main_x 143), 98016#(<= main_x 142), 98019#(<= main_x 145), 98018#(<= main_x 144), 98021#(<= main_x 147), 98020#(<= main_x 146), 98023#(<= main_x 149), 98022#(<= main_x 148), 98025#(<= main_x 151), 98024#(<= main_x 150), 98027#(<= main_x 153), 98026#(<= main_x 152), 98029#(<= main_x 155), 98028#(<= main_x 154), 98031#(<= main_x 157), 98030#(<= main_x 156), 98033#(<= main_x 159), 98032#(<= main_x 158), 98035#(<= main_x 161), 98034#(<= main_x 160), 98037#(<= main_x 163), 98036#(<= main_x 162), 98039#(<= main_x 165), 98038#(<= main_x 164), 98041#(<= main_x 167), 98040#(<= main_x 166), 98043#(<= main_x 169), 98042#(<= main_x 168), 98045#(<= main_x 171), 98044#(<= main_x 170), 98047#(<= main_x 173), 98046#(<= main_x 172), 98049#(<= main_x 175), 98048#(<= main_x 174), 98051#(<= main_x 177), 98050#(<= main_x 176), 98053#(<= main_x 179), 98052#(<= main_x 178), 98055#(<= main_x 181), 98054#(<= main_x 180), 98057#(<= main_x 183), 98056#(<= main_x 182), 98059#(<= main_x 185), 98058#(<= main_x 184), 98061#(<= main_x 187), 98060#(<= main_x 186), 98063#(<= main_x 189), 98062#(<= main_x 188), 98065#(<= main_x 191), 98064#(<= main_x 190), 98067#(<= main_x 193), 98066#(<= main_x 192)] [2018-07-23 13:56:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 18721 backedges. 0 proven. 18721 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:40,845 INFO L450 AbstractCegarLoop]: Interpolant automaton has 196 states [2018-07-23 13:56:40,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2018-07-23 13:56:40,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19110, Invalid=19110, Unknown=0, NotChecked=0, Total=38220 [2018-07-23 13:56:40,847 INFO L87 Difference]: Start difference. First operand 197 states and 197 transitions. Second operand 196 states. [2018-07-23 13:56:41,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:41,424 INFO L93 Difference]: Finished difference Result 200 states and 200 transitions. [2018-07-23 13:56:41,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2018-07-23 13:56:41,425 INFO L78 Accepts]: Start accepts. Automaton has 196 states. Word has length 196 [2018-07-23 13:56:41,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:41,425 INFO L225 Difference]: With dead ends: 200 [2018-07-23 13:56:41,425 INFO L226 Difference]: Without dead ends: 198 [2018-07-23 13:56:41,426 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19110, Invalid=19110, Unknown=0, NotChecked=0, Total=38220 [2018-07-23 13:56:41,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-07-23 13:56:41,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2018-07-23 13:56:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-07-23 13:56:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 198 transitions. [2018-07-23 13:56:41,429 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 198 transitions. Word has length 196 [2018-07-23 13:56:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:41,430 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 198 transitions. [2018-07-23 13:56:41,430 INFO L472 AbstractCegarLoop]: Interpolant automaton has 196 states. [2018-07-23 13:56:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 198 transitions. [2018-07-23 13:56:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-07-23 13:56:41,431 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:41,431 INFO L357 BasicCegarLoop]: trace histogram [194, 1, 1, 1] [2018-07-23 13:56:41,431 INFO L414 AbstractCegarLoop]: === Iteration 195 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:41,431 INFO L82 PathProgramCache]: Analyzing trace with hash -364412384, now seen corresponding path program 194 times [2018-07-23 13:56:41,431 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 18915 backedges. 0 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:42,474 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:42,474 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [196] total 196 [2018-07-23 13:56:42,475 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:42,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:42,475 INFO L185 omatonBuilderFactory]: Interpolants [98865#false, 98864#true, 98867#(<= main_x 1), 98866#(<= main_x 0), 98869#(<= main_x 3), 98868#(<= main_x 2), 98871#(<= main_x 5), 98870#(<= main_x 4), 98873#(<= main_x 7), 98872#(<= main_x 6), 98875#(<= main_x 9), 98874#(<= main_x 8), 98877#(<= main_x 11), 98876#(<= main_x 10), 98879#(<= main_x 13), 98878#(<= main_x 12), 98881#(<= main_x 15), 98880#(<= main_x 14), 98883#(<= main_x 17), 98882#(<= main_x 16), 98885#(<= main_x 19), 98884#(<= main_x 18), 98887#(<= main_x 21), 98886#(<= main_x 20), 98889#(<= main_x 23), 98888#(<= main_x 22), 98891#(<= main_x 25), 98890#(<= main_x 24), 98893#(<= main_x 27), 98892#(<= main_x 26), 98895#(<= main_x 29), 98894#(<= main_x 28), 98897#(<= main_x 31), 98896#(<= main_x 30), 98899#(<= main_x 33), 98898#(<= main_x 32), 98901#(<= main_x 35), 98900#(<= main_x 34), 98903#(<= main_x 37), 98902#(<= main_x 36), 98905#(<= main_x 39), 98904#(<= main_x 38), 98907#(<= main_x 41), 98906#(<= main_x 40), 98909#(<= main_x 43), 98908#(<= main_x 42), 98911#(<= main_x 45), 98910#(<= main_x 44), 98913#(<= main_x 47), 98912#(<= main_x 46), 98915#(<= main_x 49), 98914#(<= main_x 48), 98917#(<= main_x 51), 98916#(<= main_x 50), 98919#(<= main_x 53), 98918#(<= main_x 52), 98921#(<= main_x 55), 98920#(<= main_x 54), 98923#(<= main_x 57), 98922#(<= main_x 56), 98925#(<= main_x 59), 98924#(<= main_x 58), 98927#(<= main_x 61), 98926#(<= main_x 60), 98929#(<= main_x 63), 98928#(<= main_x 62), 98931#(<= main_x 65), 98930#(<= main_x 64), 98933#(<= main_x 67), 98932#(<= main_x 66), 98935#(<= main_x 69), 98934#(<= main_x 68), 98937#(<= main_x 71), 98936#(<= main_x 70), 98939#(<= main_x 73), 98938#(<= main_x 72), 98941#(<= main_x 75), 98940#(<= main_x 74), 98943#(<= main_x 77), 98942#(<= main_x 76), 98945#(<= main_x 79), 98944#(<= main_x 78), 98947#(<= main_x 81), 98946#(<= main_x 80), 98949#(<= main_x 83), 98948#(<= main_x 82), 98951#(<= main_x 85), 98950#(<= main_x 84), 98953#(<= main_x 87), 98952#(<= main_x 86), 98955#(<= main_x 89), 98954#(<= main_x 88), 98957#(<= main_x 91), 98956#(<= main_x 90), 98959#(<= main_x 93), 98958#(<= main_x 92), 98961#(<= main_x 95), 98960#(<= main_x 94), 98963#(<= main_x 97), 98962#(<= main_x 96), 98965#(<= main_x 99), 98964#(<= main_x 98), 98967#(<= main_x 101), 98966#(<= main_x 100), 98969#(<= main_x 103), 98968#(<= main_x 102), 98971#(<= main_x 105), 98970#(<= main_x 104), 98973#(<= main_x 107), 98972#(<= main_x 106), 98975#(<= main_x 109), 98974#(<= main_x 108), 98977#(<= main_x 111), 98976#(<= main_x 110), 98979#(<= main_x 113), 98978#(<= main_x 112), 98981#(<= main_x 115), 98980#(<= main_x 114), 98983#(<= main_x 117), 98982#(<= main_x 116), 98985#(<= main_x 119), 98984#(<= main_x 118), 98987#(<= main_x 121), 98986#(<= main_x 120), 98989#(<= main_x 123), 98988#(<= main_x 122), 98991#(<= main_x 125), 98990#(<= main_x 124), 98993#(<= main_x 127), 98992#(<= main_x 126), 98995#(<= main_x 129), 98994#(<= main_x 128), 98997#(<= main_x 131), 98996#(<= main_x 130), 98999#(<= main_x 133), 98998#(<= main_x 132), 99001#(<= main_x 135), 99000#(<= main_x 134), 99003#(<= main_x 137), 99002#(<= main_x 136), 99005#(<= main_x 139), 99004#(<= main_x 138), 99007#(<= main_x 141), 99006#(<= main_x 140), 99009#(<= main_x 143), 99008#(<= main_x 142), 99011#(<= main_x 145), 99010#(<= main_x 144), 99013#(<= main_x 147), 99012#(<= main_x 146), 99015#(<= main_x 149), 99014#(<= main_x 148), 99017#(<= main_x 151), 99016#(<= main_x 150), 99019#(<= main_x 153), 99018#(<= main_x 152), 99021#(<= main_x 155), 99020#(<= main_x 154), 99023#(<= main_x 157), 99022#(<= main_x 156), 99025#(<= main_x 159), 99024#(<= main_x 158), 99027#(<= main_x 161), 99026#(<= main_x 160), 99029#(<= main_x 163), 99028#(<= main_x 162), 99031#(<= main_x 165), 99030#(<= main_x 164), 99033#(<= main_x 167), 99032#(<= main_x 166), 99035#(<= main_x 169), 99034#(<= main_x 168), 99037#(<= main_x 171), 99036#(<= main_x 170), 99039#(<= main_x 173), 99038#(<= main_x 172), 99041#(<= main_x 175), 99040#(<= main_x 174), 99043#(<= main_x 177), 99042#(<= main_x 176), 99045#(<= main_x 179), 99044#(<= main_x 178), 99047#(<= main_x 181), 99046#(<= main_x 180), 99049#(<= main_x 183), 99048#(<= main_x 182), 99051#(<= main_x 185), 99050#(<= main_x 184), 99053#(<= main_x 187), 99052#(<= main_x 186), 99055#(<= main_x 189), 99054#(<= main_x 188), 99057#(<= main_x 191), 99056#(<= main_x 190), 99059#(<= main_x 193), 99058#(<= main_x 192), 99060#(<= main_x 194)] [2018-07-23 13:56:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 18915 backedges. 0 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:42,476 INFO L450 AbstractCegarLoop]: Interpolant automaton has 197 states [2018-07-23 13:56:42,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2018-07-23 13:56:42,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2018-07-23 13:56:42,480 INFO L87 Difference]: Start difference. First operand 198 states and 198 transitions. Second operand 197 states. [2018-07-23 13:56:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:43,623 INFO L93 Difference]: Finished difference Result 201 states and 201 transitions. [2018-07-23 13:56:43,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2018-07-23 13:56:43,623 INFO L78 Accepts]: Start accepts. Automaton has 197 states. Word has length 197 [2018-07-23 13:56:43,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:43,624 INFO L225 Difference]: With dead ends: 201 [2018-07-23 13:56:43,624 INFO L226 Difference]: Without dead ends: 199 [2018-07-23 13:56:43,626 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2018-07-23 13:56:43,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-07-23 13:56:43,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2018-07-23 13:56:43,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-07-23 13:56:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 199 transitions. [2018-07-23 13:56:43,628 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 199 transitions. Word has length 197 [2018-07-23 13:56:43,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:43,628 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 199 transitions. [2018-07-23 13:56:43,629 INFO L472 AbstractCegarLoop]: Interpolant automaton has 197 states. [2018-07-23 13:56:43,629 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 199 transitions. [2018-07-23 13:56:43,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-23 13:56:43,629 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:43,629 INFO L357 BasicCegarLoop]: trace histogram [195, 1, 1, 1] [2018-07-23 13:56:43,629 INFO L414 AbstractCegarLoop]: === Iteration 196 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:43,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1588114118, now seen corresponding path program 195 times [2018-07-23 13:56:43,630 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 19110 backedges. 0 proven. 19110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:44,729 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:44,729 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [197] total 197 [2018-07-23 13:56:44,730 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:44,730 INFO L185 omatonBuilderFactory]: Interpolants [99861#true, 99863#(<= main_x 0), 99862#false, 99865#(<= main_x 2), 99864#(<= main_x 1), 99867#(<= main_x 4), 99866#(<= main_x 3), 99869#(<= main_x 6), 99868#(<= main_x 5), 99871#(<= main_x 8), 99870#(<= main_x 7), 99873#(<= main_x 10), 99872#(<= main_x 9), 99875#(<= main_x 12), 99874#(<= main_x 11), 99877#(<= main_x 14), 99876#(<= main_x 13), 99879#(<= main_x 16), 99878#(<= main_x 15), 99881#(<= main_x 18), 99880#(<= main_x 17), 99883#(<= main_x 20), 99882#(<= main_x 19), 99885#(<= main_x 22), 99884#(<= main_x 21), 99887#(<= main_x 24), 99886#(<= main_x 23), 99889#(<= main_x 26), 99888#(<= main_x 25), 99891#(<= main_x 28), 99890#(<= main_x 27), 99893#(<= main_x 30), 99892#(<= main_x 29), 99895#(<= main_x 32), 99894#(<= main_x 31), 99897#(<= main_x 34), 99896#(<= main_x 33), 99899#(<= main_x 36), 99898#(<= main_x 35), 99901#(<= main_x 38), 99900#(<= main_x 37), 99903#(<= main_x 40), 99902#(<= main_x 39), 99905#(<= main_x 42), 99904#(<= main_x 41), 99907#(<= main_x 44), 99906#(<= main_x 43), 99909#(<= main_x 46), 99908#(<= main_x 45), 99911#(<= main_x 48), 99910#(<= main_x 47), 99913#(<= main_x 50), 99912#(<= main_x 49), 99915#(<= main_x 52), 99914#(<= main_x 51), 99917#(<= main_x 54), 99916#(<= main_x 53), 99919#(<= main_x 56), 99918#(<= main_x 55), 99921#(<= main_x 58), 99920#(<= main_x 57), 99923#(<= main_x 60), 99922#(<= main_x 59), 99925#(<= main_x 62), 99924#(<= main_x 61), 99927#(<= main_x 64), 99926#(<= main_x 63), 99929#(<= main_x 66), 99928#(<= main_x 65), 99931#(<= main_x 68), 99930#(<= main_x 67), 99933#(<= main_x 70), 99932#(<= main_x 69), 99935#(<= main_x 72), 99934#(<= main_x 71), 99937#(<= main_x 74), 99936#(<= main_x 73), 99939#(<= main_x 76), 99938#(<= main_x 75), 99941#(<= main_x 78), 99940#(<= main_x 77), 99943#(<= main_x 80), 99942#(<= main_x 79), 99945#(<= main_x 82), 99944#(<= main_x 81), 99947#(<= main_x 84), 99946#(<= main_x 83), 99949#(<= main_x 86), 99948#(<= main_x 85), 99951#(<= main_x 88), 99950#(<= main_x 87), 99953#(<= main_x 90), 99952#(<= main_x 89), 99955#(<= main_x 92), 99954#(<= main_x 91), 99957#(<= main_x 94), 99956#(<= main_x 93), 99959#(<= main_x 96), 99958#(<= main_x 95), 99961#(<= main_x 98), 99960#(<= main_x 97), 99963#(<= main_x 100), 99962#(<= main_x 99), 99965#(<= main_x 102), 99964#(<= main_x 101), 99967#(<= main_x 104), 99966#(<= main_x 103), 99969#(<= main_x 106), 99968#(<= main_x 105), 99971#(<= main_x 108), 99970#(<= main_x 107), 99973#(<= main_x 110), 99972#(<= main_x 109), 99975#(<= main_x 112), 99974#(<= main_x 111), 99977#(<= main_x 114), 99976#(<= main_x 113), 99979#(<= main_x 116), 99978#(<= main_x 115), 99981#(<= main_x 118), 99980#(<= main_x 117), 99983#(<= main_x 120), 99982#(<= main_x 119), 99985#(<= main_x 122), 99984#(<= main_x 121), 99987#(<= main_x 124), 99986#(<= main_x 123), 99989#(<= main_x 126), 99988#(<= main_x 125), 99991#(<= main_x 128), 99990#(<= main_x 127), 99993#(<= main_x 130), 99992#(<= main_x 129), 99995#(<= main_x 132), 99994#(<= main_x 131), 99997#(<= main_x 134), 99996#(<= main_x 133), 99999#(<= main_x 136), 99998#(<= main_x 135), 100001#(<= main_x 138), 100000#(<= main_x 137), 100003#(<= main_x 140), 100002#(<= main_x 139), 100005#(<= main_x 142), 100004#(<= main_x 141), 100007#(<= main_x 144), 100006#(<= main_x 143), 100009#(<= main_x 146), 100008#(<= main_x 145), 100011#(<= main_x 148), 100010#(<= main_x 147), 100013#(<= main_x 150), 100012#(<= main_x 149), 100015#(<= main_x 152), 100014#(<= main_x 151), 100017#(<= main_x 154), 100016#(<= main_x 153), 100019#(<= main_x 156), 100018#(<= main_x 155), 100021#(<= main_x 158), 100020#(<= main_x 157), 100023#(<= main_x 160), 100022#(<= main_x 159), 100025#(<= main_x 162), 100024#(<= main_x 161), 100027#(<= main_x 164), 100026#(<= main_x 163), 100029#(<= main_x 166), 100028#(<= main_x 165), 100031#(<= main_x 168), 100030#(<= main_x 167), 100033#(<= main_x 170), 100032#(<= main_x 169), 100035#(<= main_x 172), 100034#(<= main_x 171), 100037#(<= main_x 174), 100036#(<= main_x 173), 100039#(<= main_x 176), 100038#(<= main_x 175), 100041#(<= main_x 178), 100040#(<= main_x 177), 100043#(<= main_x 180), 100042#(<= main_x 179), 100045#(<= main_x 182), 100044#(<= main_x 181), 100047#(<= main_x 184), 100046#(<= main_x 183), 100049#(<= main_x 186), 100048#(<= main_x 185), 100051#(<= main_x 188), 100050#(<= main_x 187), 100053#(<= main_x 190), 100052#(<= main_x 189), 100055#(<= main_x 192), 100054#(<= main_x 191), 100057#(<= main_x 194), 100056#(<= main_x 193), 100058#(<= main_x 195)] [2018-07-23 13:56:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 19110 backedges. 0 proven. 19110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:44,731 INFO L450 AbstractCegarLoop]: Interpolant automaton has 198 states [2018-07-23 13:56:44,734 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2018-07-23 13:56:44,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19503, Invalid=19503, Unknown=0, NotChecked=0, Total=39006 [2018-07-23 13:56:44,735 INFO L87 Difference]: Start difference. First operand 199 states and 199 transitions. Second operand 198 states. [2018-07-23 13:56:45,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:45,913 INFO L93 Difference]: Finished difference Result 202 states and 202 transitions. [2018-07-23 13:56:45,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2018-07-23 13:56:45,914 INFO L78 Accepts]: Start accepts. Automaton has 198 states. Word has length 198 [2018-07-23 13:56:45,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:45,914 INFO L225 Difference]: With dead ends: 202 [2018-07-23 13:56:45,914 INFO L226 Difference]: Without dead ends: 200 [2018-07-23 13:56:45,916 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19503, Invalid=19503, Unknown=0, NotChecked=0, Total=39006 [2018-07-23 13:56:45,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-07-23 13:56:45,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2018-07-23 13:56:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-07-23 13:56:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 200 transitions. [2018-07-23 13:56:45,919 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 200 transitions. Word has length 198 [2018-07-23 13:56:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:45,919 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 200 transitions. [2018-07-23 13:56:45,919 INFO L472 AbstractCegarLoop]: Interpolant automaton has 198 states. [2018-07-23 13:56:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 200 transitions. [2018-07-23 13:56:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-07-23 13:56:45,920 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:45,920 INFO L357 BasicCegarLoop]: trace histogram [196, 1, 1, 1] [2018-07-23 13:56:45,920 INFO L414 AbstractCegarLoop]: === Iteration 197 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1986893536, now seen corresponding path program 196 times [2018-07-23 13:56:45,920 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 19306 backedges. 0 proven. 19306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:46,967 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:46,967 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [198] total 198 [2018-07-23 13:56:46,967 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:46,968 INFO L185 omatonBuilderFactory]: Interpolants [100865#(<= main_x 0), 100864#false, 100867#(<= main_x 2), 100866#(<= main_x 1), 100869#(<= main_x 4), 100868#(<= main_x 3), 100871#(<= main_x 6), 100870#(<= main_x 5), 100873#(<= main_x 8), 100872#(<= main_x 7), 100875#(<= main_x 10), 100874#(<= main_x 9), 100877#(<= main_x 12), 100876#(<= main_x 11), 100879#(<= main_x 14), 100878#(<= main_x 13), 100881#(<= main_x 16), 100880#(<= main_x 15), 100883#(<= main_x 18), 100882#(<= main_x 17), 100885#(<= main_x 20), 100884#(<= main_x 19), 100887#(<= main_x 22), 100886#(<= main_x 21), 100889#(<= main_x 24), 100888#(<= main_x 23), 100891#(<= main_x 26), 100890#(<= main_x 25), 100893#(<= main_x 28), 100892#(<= main_x 27), 100895#(<= main_x 30), 100894#(<= main_x 29), 100897#(<= main_x 32), 100896#(<= main_x 31), 100899#(<= main_x 34), 100898#(<= main_x 33), 100901#(<= main_x 36), 100900#(<= main_x 35), 100903#(<= main_x 38), 100902#(<= main_x 37), 100905#(<= main_x 40), 100904#(<= main_x 39), 100907#(<= main_x 42), 100906#(<= main_x 41), 100909#(<= main_x 44), 100908#(<= main_x 43), 100911#(<= main_x 46), 100910#(<= main_x 45), 100913#(<= main_x 48), 100912#(<= main_x 47), 100915#(<= main_x 50), 100914#(<= main_x 49), 100917#(<= main_x 52), 100916#(<= main_x 51), 100919#(<= main_x 54), 100918#(<= main_x 53), 100921#(<= main_x 56), 100920#(<= main_x 55), 100923#(<= main_x 58), 100922#(<= main_x 57), 100925#(<= main_x 60), 100924#(<= main_x 59), 100927#(<= main_x 62), 100926#(<= main_x 61), 100929#(<= main_x 64), 100928#(<= main_x 63), 100931#(<= main_x 66), 100930#(<= main_x 65), 100933#(<= main_x 68), 100932#(<= main_x 67), 100935#(<= main_x 70), 100934#(<= main_x 69), 100937#(<= main_x 72), 100936#(<= main_x 71), 100939#(<= main_x 74), 100938#(<= main_x 73), 100941#(<= main_x 76), 100940#(<= main_x 75), 100943#(<= main_x 78), 100942#(<= main_x 77), 100945#(<= main_x 80), 100944#(<= main_x 79), 100947#(<= main_x 82), 100946#(<= main_x 81), 100949#(<= main_x 84), 100948#(<= main_x 83), 100951#(<= main_x 86), 100950#(<= main_x 85), 100953#(<= main_x 88), 100952#(<= main_x 87), 100955#(<= main_x 90), 100954#(<= main_x 89), 100957#(<= main_x 92), 100956#(<= main_x 91), 100959#(<= main_x 94), 100958#(<= main_x 93), 100961#(<= main_x 96), 100960#(<= main_x 95), 100963#(<= main_x 98), 100962#(<= main_x 97), 100965#(<= main_x 100), 100964#(<= main_x 99), 100967#(<= main_x 102), 100966#(<= main_x 101), 100969#(<= main_x 104), 100968#(<= main_x 103), 100971#(<= main_x 106), 100970#(<= main_x 105), 100973#(<= main_x 108), 100972#(<= main_x 107), 100975#(<= main_x 110), 100974#(<= main_x 109), 100977#(<= main_x 112), 100976#(<= main_x 111), 100979#(<= main_x 114), 100978#(<= main_x 113), 100981#(<= main_x 116), 100980#(<= main_x 115), 100983#(<= main_x 118), 100982#(<= main_x 117), 100985#(<= main_x 120), 100984#(<= main_x 119), 100987#(<= main_x 122), 100986#(<= main_x 121), 100989#(<= main_x 124), 100988#(<= main_x 123), 100991#(<= main_x 126), 100990#(<= main_x 125), 100993#(<= main_x 128), 100992#(<= main_x 127), 100995#(<= main_x 130), 100994#(<= main_x 129), 100997#(<= main_x 132), 100996#(<= main_x 131), 100999#(<= main_x 134), 100998#(<= main_x 133), 101001#(<= main_x 136), 101000#(<= main_x 135), 101003#(<= main_x 138), 101002#(<= main_x 137), 101005#(<= main_x 140), 101004#(<= main_x 139), 101007#(<= main_x 142), 101006#(<= main_x 141), 101009#(<= main_x 144), 101008#(<= main_x 143), 101011#(<= main_x 146), 101010#(<= main_x 145), 101013#(<= main_x 148), 101012#(<= main_x 147), 101015#(<= main_x 150), 101014#(<= main_x 149), 101017#(<= main_x 152), 101016#(<= main_x 151), 101019#(<= main_x 154), 101018#(<= main_x 153), 101021#(<= main_x 156), 101020#(<= main_x 155), 101023#(<= main_x 158), 101022#(<= main_x 157), 101025#(<= main_x 160), 101024#(<= main_x 159), 101027#(<= main_x 162), 101026#(<= main_x 161), 101029#(<= main_x 164), 101028#(<= main_x 163), 101031#(<= main_x 166), 101030#(<= main_x 165), 101033#(<= main_x 168), 101032#(<= main_x 167), 101035#(<= main_x 170), 101034#(<= main_x 169), 101037#(<= main_x 172), 101036#(<= main_x 171), 101039#(<= main_x 174), 101038#(<= main_x 173), 101041#(<= main_x 176), 101040#(<= main_x 175), 101043#(<= main_x 178), 101042#(<= main_x 177), 101045#(<= main_x 180), 101044#(<= main_x 179), 101047#(<= main_x 182), 101046#(<= main_x 181), 101049#(<= main_x 184), 101048#(<= main_x 183), 101051#(<= main_x 186), 101050#(<= main_x 185), 101053#(<= main_x 188), 101052#(<= main_x 187), 101055#(<= main_x 190), 101054#(<= main_x 189), 101057#(<= main_x 192), 101056#(<= main_x 191), 101059#(<= main_x 194), 101058#(<= main_x 193), 101061#(<= main_x 196), 101060#(<= main_x 195), 100863#true] [2018-07-23 13:56:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 19306 backedges. 0 proven. 19306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:46,969 INFO L450 AbstractCegarLoop]: Interpolant automaton has 199 states [2018-07-23 13:56:46,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2018-07-23 13:56:46,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19701, Invalid=19701, Unknown=0, NotChecked=0, Total=39402 [2018-07-23 13:56:46,972 INFO L87 Difference]: Start difference. First operand 200 states and 200 transitions. Second operand 199 states. [2018-07-23 13:56:48,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:48,242 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-07-23 13:56:48,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2018-07-23 13:56:48,242 INFO L78 Accepts]: Start accepts. Automaton has 199 states. Word has length 199 [2018-07-23 13:56:48,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:48,243 INFO L225 Difference]: With dead ends: 203 [2018-07-23 13:56:48,243 INFO L226 Difference]: Without dead ends: 201 [2018-07-23 13:56:48,245 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19701, Invalid=19701, Unknown=0, NotChecked=0, Total=39402 [2018-07-23 13:56:48,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-07-23 13:56:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2018-07-23 13:56:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-07-23 13:56:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 201 transitions. [2018-07-23 13:56:48,249 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 201 transitions. Word has length 199 [2018-07-23 13:56:48,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:48,249 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 201 transitions. [2018-07-23 13:56:48,249 INFO L472 AbstractCegarLoop]: Interpolant automaton has 199 states. [2018-07-23 13:56:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 201 transitions. [2018-07-23 13:56:48,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-07-23 13:56:48,250 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:48,250 INFO L357 BasicCegarLoop]: trace histogram [197, 1, 1, 1] [2018-07-23 13:56:48,250 INFO L414 AbstractCegarLoop]: === Iteration 198 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:48,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1464153606, now seen corresponding path program 197 times [2018-07-23 13:56:48,251 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 19503 backedges. 0 proven. 19503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:49,460 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:49,460 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [199] total 199 [2018-07-23 13:56:49,460 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:49,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:49,461 INFO L185 omatonBuilderFactory]: Interpolants [101889#(<= main_x 17), 101888#(<= main_x 16), 101891#(<= main_x 19), 101890#(<= main_x 18), 101893#(<= main_x 21), 101892#(<= main_x 20), 101895#(<= main_x 23), 101894#(<= main_x 22), 101897#(<= main_x 25), 101896#(<= main_x 24), 101899#(<= main_x 27), 101898#(<= main_x 26), 101901#(<= main_x 29), 101900#(<= main_x 28), 101903#(<= main_x 31), 101902#(<= main_x 30), 101905#(<= main_x 33), 101904#(<= main_x 32), 101907#(<= main_x 35), 101906#(<= main_x 34), 101909#(<= main_x 37), 101908#(<= main_x 36), 101911#(<= main_x 39), 101910#(<= main_x 38), 101913#(<= main_x 41), 101912#(<= main_x 40), 101915#(<= main_x 43), 101914#(<= main_x 42), 101917#(<= main_x 45), 101916#(<= main_x 44), 101919#(<= main_x 47), 101918#(<= main_x 46), 101921#(<= main_x 49), 101920#(<= main_x 48), 101923#(<= main_x 51), 101922#(<= main_x 50), 101925#(<= main_x 53), 101924#(<= main_x 52), 101927#(<= main_x 55), 101926#(<= main_x 54), 101929#(<= main_x 57), 101928#(<= main_x 56), 101931#(<= main_x 59), 101930#(<= main_x 58), 101933#(<= main_x 61), 101932#(<= main_x 60), 101935#(<= main_x 63), 101934#(<= main_x 62), 101937#(<= main_x 65), 101936#(<= main_x 64), 101939#(<= main_x 67), 101938#(<= main_x 66), 101941#(<= main_x 69), 101940#(<= main_x 68), 101943#(<= main_x 71), 101942#(<= main_x 70), 101945#(<= main_x 73), 101944#(<= main_x 72), 101947#(<= main_x 75), 101946#(<= main_x 74), 101949#(<= main_x 77), 101948#(<= main_x 76), 101951#(<= main_x 79), 101950#(<= main_x 78), 101953#(<= main_x 81), 101952#(<= main_x 80), 101955#(<= main_x 83), 101954#(<= main_x 82), 101957#(<= main_x 85), 101956#(<= main_x 84), 101959#(<= main_x 87), 101958#(<= main_x 86), 101961#(<= main_x 89), 101960#(<= main_x 88), 101963#(<= main_x 91), 101962#(<= main_x 90), 101965#(<= main_x 93), 101964#(<= main_x 92), 101967#(<= main_x 95), 101966#(<= main_x 94), 101969#(<= main_x 97), 101968#(<= main_x 96), 101971#(<= main_x 99), 101970#(<= main_x 98), 101973#(<= main_x 101), 101972#(<= main_x 100), 101975#(<= main_x 103), 101974#(<= main_x 102), 101977#(<= main_x 105), 101976#(<= main_x 104), 101979#(<= main_x 107), 101978#(<= main_x 106), 101981#(<= main_x 109), 101980#(<= main_x 108), 101983#(<= main_x 111), 101982#(<= main_x 110), 101985#(<= main_x 113), 101984#(<= main_x 112), 101987#(<= main_x 115), 101986#(<= main_x 114), 101989#(<= main_x 117), 101988#(<= main_x 116), 101991#(<= main_x 119), 101990#(<= main_x 118), 101993#(<= main_x 121), 101992#(<= main_x 120), 101995#(<= main_x 123), 101994#(<= main_x 122), 101997#(<= main_x 125), 101996#(<= main_x 124), 101999#(<= main_x 127), 101998#(<= main_x 126), 102001#(<= main_x 129), 102000#(<= main_x 128), 102003#(<= main_x 131), 102002#(<= main_x 130), 102005#(<= main_x 133), 102004#(<= main_x 132), 102007#(<= main_x 135), 102006#(<= main_x 134), 102009#(<= main_x 137), 102008#(<= main_x 136), 102011#(<= main_x 139), 102010#(<= main_x 138), 102013#(<= main_x 141), 102012#(<= main_x 140), 102015#(<= main_x 143), 102014#(<= main_x 142), 102017#(<= main_x 145), 102016#(<= main_x 144), 102019#(<= main_x 147), 102018#(<= main_x 146), 102021#(<= main_x 149), 102020#(<= main_x 148), 102023#(<= main_x 151), 102022#(<= main_x 150), 102025#(<= main_x 153), 102024#(<= main_x 152), 102027#(<= main_x 155), 102026#(<= main_x 154), 102029#(<= main_x 157), 102028#(<= main_x 156), 102031#(<= main_x 159), 102030#(<= main_x 158), 102033#(<= main_x 161), 102032#(<= main_x 160), 102035#(<= main_x 163), 102034#(<= main_x 162), 102037#(<= main_x 165), 102036#(<= main_x 164), 102039#(<= main_x 167), 102038#(<= main_x 166), 102041#(<= main_x 169), 102040#(<= main_x 168), 102043#(<= main_x 171), 102042#(<= main_x 170), 102045#(<= main_x 173), 102044#(<= main_x 172), 102047#(<= main_x 175), 102046#(<= main_x 174), 102049#(<= main_x 177), 102048#(<= main_x 176), 102051#(<= main_x 179), 102050#(<= main_x 178), 102053#(<= main_x 181), 102052#(<= main_x 180), 102055#(<= main_x 183), 102054#(<= main_x 182), 102057#(<= main_x 185), 102056#(<= main_x 184), 102059#(<= main_x 187), 102058#(<= main_x 186), 102061#(<= main_x 189), 102060#(<= main_x 188), 102063#(<= main_x 191), 102062#(<= main_x 190), 102065#(<= main_x 193), 102064#(<= main_x 192), 102067#(<= main_x 195), 102066#(<= main_x 194), 102069#(<= main_x 197), 102068#(<= main_x 196), 101871#false, 101870#true, 101873#(<= main_x 1), 101872#(<= main_x 0), 101875#(<= main_x 3), 101874#(<= main_x 2), 101877#(<= main_x 5), 101876#(<= main_x 4), 101879#(<= main_x 7), 101878#(<= main_x 6), 101881#(<= main_x 9), 101880#(<= main_x 8), 101883#(<= main_x 11), 101882#(<= main_x 10), 101885#(<= main_x 13), 101884#(<= main_x 12), 101887#(<= main_x 15), 101886#(<= main_x 14)] [2018-07-23 13:56:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19503 backedges. 0 proven. 19503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:49,462 INFO L450 AbstractCegarLoop]: Interpolant automaton has 200 states [2018-07-23 13:56:49,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 200 interpolants. [2018-07-23 13:56:49,466 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19900, Invalid=19900, Unknown=0, NotChecked=0, Total=39800 [2018-07-23 13:56:49,466 INFO L87 Difference]: Start difference. First operand 201 states and 201 transitions. Second operand 200 states. [2018-07-23 13:56:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:50,370 INFO L93 Difference]: Finished difference Result 204 states and 204 transitions. [2018-07-23 13:56:50,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2018-07-23 13:56:50,370 INFO L78 Accepts]: Start accepts. Automaton has 200 states. Word has length 200 [2018-07-23 13:56:50,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:50,371 INFO L225 Difference]: With dead ends: 204 [2018-07-23 13:56:50,371 INFO L226 Difference]: Without dead ends: 202 [2018-07-23 13:56:50,372 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19900, Invalid=19900, Unknown=0, NotChecked=0, Total=39800 [2018-07-23 13:56:50,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-07-23 13:56:50,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-07-23 13:56:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-07-23 13:56:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2018-07-23 13:56:50,375 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 200 [2018-07-23 13:56:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:50,375 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2018-07-23 13:56:50,375 INFO L472 AbstractCegarLoop]: Interpolant automaton has 200 states. [2018-07-23 13:56:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2018-07-23 13:56:50,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-23 13:56:50,375 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:50,375 INFO L357 BasicCegarLoop]: trace histogram [198, 1, 1, 1] [2018-07-23 13:56:50,376 INFO L414 AbstractCegarLoop]: === Iteration 199 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:50,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1855882336, now seen corresponding path program 198 times [2018-07-23 13:56:50,376 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 19701 backedges. 0 proven. 19701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:51,379 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:51,379 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [200] total 200 [2018-07-23 13:56:51,379 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:51,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:51,380 INFO L185 omatonBuilderFactory]: Interpolants [102913#(<= main_x 29), 102912#(<= main_x 28), 102915#(<= main_x 31), 102914#(<= main_x 30), 102917#(<= main_x 33), 102916#(<= main_x 32), 102919#(<= main_x 35), 102918#(<= main_x 34), 102921#(<= main_x 37), 102920#(<= main_x 36), 102923#(<= main_x 39), 102922#(<= main_x 38), 102925#(<= main_x 41), 102924#(<= main_x 40), 102927#(<= main_x 43), 102926#(<= main_x 42), 102929#(<= main_x 45), 102928#(<= main_x 44), 102931#(<= main_x 47), 102930#(<= main_x 46), 102933#(<= main_x 49), 102932#(<= main_x 48), 102935#(<= main_x 51), 102934#(<= main_x 50), 102937#(<= main_x 53), 102936#(<= main_x 52), 102939#(<= main_x 55), 102938#(<= main_x 54), 102941#(<= main_x 57), 102940#(<= main_x 56), 102943#(<= main_x 59), 102942#(<= main_x 58), 102945#(<= main_x 61), 102944#(<= main_x 60), 102947#(<= main_x 63), 102946#(<= main_x 62), 102949#(<= main_x 65), 102948#(<= main_x 64), 102951#(<= main_x 67), 102950#(<= main_x 66), 102953#(<= main_x 69), 102952#(<= main_x 68), 102955#(<= main_x 71), 102954#(<= main_x 70), 102957#(<= main_x 73), 102956#(<= main_x 72), 102959#(<= main_x 75), 102958#(<= main_x 74), 102961#(<= main_x 77), 102960#(<= main_x 76), 102963#(<= main_x 79), 102962#(<= main_x 78), 102965#(<= main_x 81), 102964#(<= main_x 80), 102967#(<= main_x 83), 102966#(<= main_x 82), 102969#(<= main_x 85), 102968#(<= main_x 84), 102971#(<= main_x 87), 102970#(<= main_x 86), 102973#(<= main_x 89), 102972#(<= main_x 88), 102975#(<= main_x 91), 102974#(<= main_x 90), 102977#(<= main_x 93), 102976#(<= main_x 92), 102979#(<= main_x 95), 102978#(<= main_x 94), 102981#(<= main_x 97), 102980#(<= main_x 96), 102983#(<= main_x 99), 102982#(<= main_x 98), 102985#(<= main_x 101), 102984#(<= main_x 100), 102987#(<= main_x 103), 102986#(<= main_x 102), 102989#(<= main_x 105), 102988#(<= main_x 104), 102991#(<= main_x 107), 102990#(<= main_x 106), 102993#(<= main_x 109), 102992#(<= main_x 108), 102995#(<= main_x 111), 102994#(<= main_x 110), 102997#(<= main_x 113), 102996#(<= main_x 112), 102999#(<= main_x 115), 102998#(<= main_x 114), 103001#(<= main_x 117), 103000#(<= main_x 116), 103003#(<= main_x 119), 103002#(<= main_x 118), 103005#(<= main_x 121), 103004#(<= main_x 120), 103007#(<= main_x 123), 103006#(<= main_x 122), 103009#(<= main_x 125), 103008#(<= main_x 124), 103011#(<= main_x 127), 103010#(<= main_x 126), 103013#(<= main_x 129), 103012#(<= main_x 128), 103015#(<= main_x 131), 103014#(<= main_x 130), 103017#(<= main_x 133), 103016#(<= main_x 132), 103019#(<= main_x 135), 103018#(<= main_x 134), 103021#(<= main_x 137), 103020#(<= main_x 136), 103023#(<= main_x 139), 103022#(<= main_x 138), 103025#(<= main_x 141), 103024#(<= main_x 140), 103027#(<= main_x 143), 103026#(<= main_x 142), 103029#(<= main_x 145), 103028#(<= main_x 144), 103031#(<= main_x 147), 103030#(<= main_x 146), 103033#(<= main_x 149), 103032#(<= main_x 148), 103035#(<= main_x 151), 103034#(<= main_x 150), 103037#(<= main_x 153), 103036#(<= main_x 152), 103039#(<= main_x 155), 103038#(<= main_x 154), 103041#(<= main_x 157), 103040#(<= main_x 156), 103043#(<= main_x 159), 103042#(<= main_x 158), 103045#(<= main_x 161), 103044#(<= main_x 160), 103047#(<= main_x 163), 103046#(<= main_x 162), 103049#(<= main_x 165), 103048#(<= main_x 164), 103051#(<= main_x 167), 103050#(<= main_x 166), 103053#(<= main_x 169), 103052#(<= main_x 168), 103055#(<= main_x 171), 103054#(<= main_x 170), 103057#(<= main_x 173), 103056#(<= main_x 172), 103059#(<= main_x 175), 103058#(<= main_x 174), 103061#(<= main_x 177), 103060#(<= main_x 176), 103063#(<= main_x 179), 103062#(<= main_x 178), 103065#(<= main_x 181), 103064#(<= main_x 180), 103067#(<= main_x 183), 103066#(<= main_x 182), 103069#(<= main_x 185), 103068#(<= main_x 184), 103071#(<= main_x 187), 103070#(<= main_x 186), 103073#(<= main_x 189), 103072#(<= main_x 188), 103075#(<= main_x 191), 103074#(<= main_x 190), 103077#(<= main_x 193), 103076#(<= main_x 192), 103079#(<= main_x 195), 103078#(<= main_x 194), 103081#(<= main_x 197), 103080#(<= main_x 196), 103082#(<= main_x 198), 102883#false, 102882#true, 102885#(<= main_x 1), 102884#(<= main_x 0), 102887#(<= main_x 3), 102886#(<= main_x 2), 102889#(<= main_x 5), 102888#(<= main_x 4), 102891#(<= main_x 7), 102890#(<= main_x 6), 102893#(<= main_x 9), 102892#(<= main_x 8), 102895#(<= main_x 11), 102894#(<= main_x 10), 102897#(<= main_x 13), 102896#(<= main_x 12), 102899#(<= main_x 15), 102898#(<= main_x 14), 102901#(<= main_x 17), 102900#(<= main_x 16), 102903#(<= main_x 19), 102902#(<= main_x 18), 102905#(<= main_x 21), 102904#(<= main_x 20), 102907#(<= main_x 23), 102906#(<= main_x 22), 102909#(<= main_x 25), 102908#(<= main_x 24), 102911#(<= main_x 27), 102910#(<= main_x 26)] [2018-07-23 13:56:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 19701 backedges. 0 proven. 19701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:51,381 INFO L450 AbstractCegarLoop]: Interpolant automaton has 201 states [2018-07-23 13:56:51,383 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2018-07-23 13:56:51,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2018-07-23 13:56:51,408 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand 201 states. [2018-07-23 13:56:52,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:52,153 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2018-07-23 13:56:52,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2018-07-23 13:56:52,153 INFO L78 Accepts]: Start accepts. Automaton has 201 states. Word has length 201 [2018-07-23 13:56:52,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:52,154 INFO L225 Difference]: With dead ends: 205 [2018-07-23 13:56:52,154 INFO L226 Difference]: Without dead ends: 203 [2018-07-23 13:56:52,154 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2018-07-23 13:56:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-07-23 13:56:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2018-07-23 13:56:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-07-23 13:56:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 203 transitions. [2018-07-23 13:56:52,157 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 203 transitions. Word has length 201 [2018-07-23 13:56:52,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:52,157 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 203 transitions. [2018-07-23 13:56:52,157 INFO L472 AbstractCegarLoop]: Interpolant automaton has 201 states. [2018-07-23 13:56:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 203 transitions. [2018-07-23 13:56:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-07-23 13:56:52,157 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:52,157 INFO L357 BasicCegarLoop]: trace histogram [199, 1, 1, 1] [2018-07-23 13:56:52,157 INFO L414 AbstractCegarLoop]: === Iteration 200 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:52,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1697781434, now seen corresponding path program 199 times [2018-07-23 13:56:52,158 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 19900 backedges. 0 proven. 19900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:53,176 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:53,176 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [201] total 201 [2018-07-23 13:56:53,177 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:53,177 INFO L185 omatonBuilderFactory]: Interpolants [103937#(<= main_x 36), 103936#(<= main_x 35), 103939#(<= main_x 38), 103938#(<= main_x 37), 103941#(<= main_x 40), 103940#(<= main_x 39), 103943#(<= main_x 42), 103942#(<= main_x 41), 103945#(<= main_x 44), 103944#(<= main_x 43), 103947#(<= main_x 46), 103946#(<= main_x 45), 103949#(<= main_x 48), 103948#(<= main_x 47), 103951#(<= main_x 50), 103950#(<= main_x 49), 103953#(<= main_x 52), 103952#(<= main_x 51), 103955#(<= main_x 54), 103954#(<= main_x 53), 103957#(<= main_x 56), 103956#(<= main_x 55), 103959#(<= main_x 58), 103958#(<= main_x 57), 103961#(<= main_x 60), 103960#(<= main_x 59), 103963#(<= main_x 62), 103962#(<= main_x 61), 103965#(<= main_x 64), 103964#(<= main_x 63), 103967#(<= main_x 66), 103966#(<= main_x 65), 103969#(<= main_x 68), 103968#(<= main_x 67), 103971#(<= main_x 70), 103970#(<= main_x 69), 103973#(<= main_x 72), 103972#(<= main_x 71), 103975#(<= main_x 74), 103974#(<= main_x 73), 103977#(<= main_x 76), 103976#(<= main_x 75), 103979#(<= main_x 78), 103978#(<= main_x 77), 103981#(<= main_x 80), 103980#(<= main_x 79), 103983#(<= main_x 82), 103982#(<= main_x 81), 103985#(<= main_x 84), 103984#(<= main_x 83), 103987#(<= main_x 86), 103986#(<= main_x 85), 103989#(<= main_x 88), 103988#(<= main_x 87), 103991#(<= main_x 90), 103990#(<= main_x 89), 103993#(<= main_x 92), 103992#(<= main_x 91), 103995#(<= main_x 94), 103994#(<= main_x 93), 103997#(<= main_x 96), 103996#(<= main_x 95), 103999#(<= main_x 98), 103998#(<= main_x 97), 104001#(<= main_x 100), 104000#(<= main_x 99), 104003#(<= main_x 102), 104002#(<= main_x 101), 104005#(<= main_x 104), 104004#(<= main_x 103), 104007#(<= main_x 106), 104006#(<= main_x 105), 104009#(<= main_x 108), 104008#(<= main_x 107), 104011#(<= main_x 110), 104010#(<= main_x 109), 104013#(<= main_x 112), 104012#(<= main_x 111), 104015#(<= main_x 114), 104014#(<= main_x 113), 104017#(<= main_x 116), 104016#(<= main_x 115), 104019#(<= main_x 118), 104018#(<= main_x 117), 104021#(<= main_x 120), 104020#(<= main_x 119), 104023#(<= main_x 122), 104022#(<= main_x 121), 104025#(<= main_x 124), 104024#(<= main_x 123), 104027#(<= main_x 126), 104026#(<= main_x 125), 104029#(<= main_x 128), 104028#(<= main_x 127), 104031#(<= main_x 130), 104030#(<= main_x 129), 104033#(<= main_x 132), 104032#(<= main_x 131), 104035#(<= main_x 134), 104034#(<= main_x 133), 104037#(<= main_x 136), 104036#(<= main_x 135), 104039#(<= main_x 138), 104038#(<= main_x 137), 104041#(<= main_x 140), 104040#(<= main_x 139), 104043#(<= main_x 142), 104042#(<= main_x 141), 104045#(<= main_x 144), 104044#(<= main_x 143), 104047#(<= main_x 146), 104046#(<= main_x 145), 104049#(<= main_x 148), 104048#(<= main_x 147), 104051#(<= main_x 150), 104050#(<= main_x 149), 104053#(<= main_x 152), 104052#(<= main_x 151), 104055#(<= main_x 154), 104054#(<= main_x 153), 104057#(<= main_x 156), 104056#(<= main_x 155), 104059#(<= main_x 158), 104058#(<= main_x 157), 104061#(<= main_x 160), 104060#(<= main_x 159), 104063#(<= main_x 162), 104062#(<= main_x 161), 104065#(<= main_x 164), 104064#(<= main_x 163), 104067#(<= main_x 166), 104066#(<= main_x 165), 104069#(<= main_x 168), 104068#(<= main_x 167), 104071#(<= main_x 170), 104070#(<= main_x 169), 104073#(<= main_x 172), 104072#(<= main_x 171), 104075#(<= main_x 174), 104074#(<= main_x 173), 104077#(<= main_x 176), 104076#(<= main_x 175), 104079#(<= main_x 178), 104078#(<= main_x 177), 104081#(<= main_x 180), 104080#(<= main_x 179), 104083#(<= main_x 182), 104082#(<= main_x 181), 104085#(<= main_x 184), 104084#(<= main_x 183), 104087#(<= main_x 186), 104086#(<= main_x 185), 104089#(<= main_x 188), 104088#(<= main_x 187), 104091#(<= main_x 190), 104090#(<= main_x 189), 104093#(<= main_x 192), 104092#(<= main_x 191), 104095#(<= main_x 194), 104094#(<= main_x 193), 104097#(<= main_x 196), 104096#(<= main_x 195), 104099#(<= main_x 198), 104098#(<= main_x 197), 104100#(<= main_x 199), 103899#true, 103901#(<= main_x 0), 103900#false, 103903#(<= main_x 2), 103902#(<= main_x 1), 103905#(<= main_x 4), 103904#(<= main_x 3), 103907#(<= main_x 6), 103906#(<= main_x 5), 103909#(<= main_x 8), 103908#(<= main_x 7), 103911#(<= main_x 10), 103910#(<= main_x 9), 103913#(<= main_x 12), 103912#(<= main_x 11), 103915#(<= main_x 14), 103914#(<= main_x 13), 103917#(<= main_x 16), 103916#(<= main_x 15), 103919#(<= main_x 18), 103918#(<= main_x 17), 103921#(<= main_x 20), 103920#(<= main_x 19), 103923#(<= main_x 22), 103922#(<= main_x 21), 103925#(<= main_x 24), 103924#(<= main_x 23), 103927#(<= main_x 26), 103926#(<= main_x 25), 103929#(<= main_x 28), 103928#(<= main_x 27), 103931#(<= main_x 30), 103930#(<= main_x 29), 103933#(<= main_x 32), 103932#(<= main_x 31), 103935#(<= main_x 34), 103934#(<= main_x 33)] [2018-07-23 13:56:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 19900 backedges. 0 proven. 19900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:53,178 INFO L450 AbstractCegarLoop]: Interpolant automaton has 202 states [2018-07-23 13:56:53,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2018-07-23 13:56:53,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20301, Invalid=20301, Unknown=0, NotChecked=0, Total=40602 [2018-07-23 13:56:53,182 INFO L87 Difference]: Start difference. First operand 203 states and 203 transitions. Second operand 202 states. [2018-07-23 13:56:54,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:54,016 INFO L93 Difference]: Finished difference Result 206 states and 206 transitions. [2018-07-23 13:56:54,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2018-07-23 13:56:54,016 INFO L78 Accepts]: Start accepts. Automaton has 202 states. Word has length 202 [2018-07-23 13:56:54,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:54,017 INFO L225 Difference]: With dead ends: 206 [2018-07-23 13:56:54,017 INFO L226 Difference]: Without dead ends: 204 [2018-07-23 13:56:54,019 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20301, Invalid=20301, Unknown=0, NotChecked=0, Total=40602 [2018-07-23 13:56:54,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-07-23 13:56:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2018-07-23 13:56:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-07-23 13:56:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2018-07-23 13:56:54,021 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 202 [2018-07-23 13:56:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:54,022 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2018-07-23 13:56:54,022 INFO L472 AbstractCegarLoop]: Interpolant automaton has 202 states. [2018-07-23 13:56:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2018-07-23 13:56:54,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-07-23 13:56:54,022 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:54,022 INFO L357 BasicCegarLoop]: trace histogram [200, 1, 1, 1] [2018-07-23 13:56:54,022 INFO L414 AbstractCegarLoop]: === Iteration 201 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:54,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1091620768, now seen corresponding path program 200 times [2018-07-23 13:56:54,023 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 20100 backedges. 0 proven. 20100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:55,056 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:55,057 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [202] total 202 [2018-07-23 13:56:55,057 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:55,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:55,057 INFO L185 omatonBuilderFactory]: Interpolants [104961#(<= main_x 38), 104960#(<= main_x 37), 104963#(<= main_x 40), 104962#(<= main_x 39), 104965#(<= main_x 42), 104964#(<= main_x 41), 104967#(<= main_x 44), 104966#(<= main_x 43), 104969#(<= main_x 46), 104968#(<= main_x 45), 104971#(<= main_x 48), 104970#(<= main_x 47), 104973#(<= main_x 50), 104972#(<= main_x 49), 104975#(<= main_x 52), 104974#(<= main_x 51), 104977#(<= main_x 54), 104976#(<= main_x 53), 104979#(<= main_x 56), 104978#(<= main_x 55), 104981#(<= main_x 58), 104980#(<= main_x 57), 104983#(<= main_x 60), 104982#(<= main_x 59), 104985#(<= main_x 62), 104984#(<= main_x 61), 104987#(<= main_x 64), 104986#(<= main_x 63), 104989#(<= main_x 66), 104988#(<= main_x 65), 104991#(<= main_x 68), 104990#(<= main_x 67), 104993#(<= main_x 70), 104992#(<= main_x 69), 104995#(<= main_x 72), 104994#(<= main_x 71), 104997#(<= main_x 74), 104996#(<= main_x 73), 104999#(<= main_x 76), 104998#(<= main_x 75), 105001#(<= main_x 78), 105000#(<= main_x 77), 105003#(<= main_x 80), 105002#(<= main_x 79), 105005#(<= main_x 82), 105004#(<= main_x 81), 105007#(<= main_x 84), 105006#(<= main_x 83), 105009#(<= main_x 86), 105008#(<= main_x 85), 105011#(<= main_x 88), 105010#(<= main_x 87), 105013#(<= main_x 90), 105012#(<= main_x 89), 105015#(<= main_x 92), 105014#(<= main_x 91), 105017#(<= main_x 94), 105016#(<= main_x 93), 105019#(<= main_x 96), 105018#(<= main_x 95), 105021#(<= main_x 98), 105020#(<= main_x 97), 105023#(<= main_x 100), 105022#(<= main_x 99), 105025#(<= main_x 102), 105024#(<= main_x 101), 105027#(<= main_x 104), 105026#(<= main_x 103), 105029#(<= main_x 106), 105028#(<= main_x 105), 105031#(<= main_x 108), 105030#(<= main_x 107), 105033#(<= main_x 110), 105032#(<= main_x 109), 105035#(<= main_x 112), 105034#(<= main_x 111), 105037#(<= main_x 114), 105036#(<= main_x 113), 105039#(<= main_x 116), 105038#(<= main_x 115), 105041#(<= main_x 118), 105040#(<= main_x 117), 105043#(<= main_x 120), 105042#(<= main_x 119), 105045#(<= main_x 122), 105044#(<= main_x 121), 105047#(<= main_x 124), 105046#(<= main_x 123), 105049#(<= main_x 126), 105048#(<= main_x 125), 105051#(<= main_x 128), 105050#(<= main_x 127), 105053#(<= main_x 130), 105052#(<= main_x 129), 105055#(<= main_x 132), 105054#(<= main_x 131), 105057#(<= main_x 134), 105056#(<= main_x 133), 105059#(<= main_x 136), 105058#(<= main_x 135), 105061#(<= main_x 138), 105060#(<= main_x 137), 105063#(<= main_x 140), 105062#(<= main_x 139), 105065#(<= main_x 142), 105064#(<= main_x 141), 105067#(<= main_x 144), 105066#(<= main_x 143), 105069#(<= main_x 146), 105068#(<= main_x 145), 105071#(<= main_x 148), 105070#(<= main_x 147), 105073#(<= main_x 150), 105072#(<= main_x 149), 105075#(<= main_x 152), 105074#(<= main_x 151), 105077#(<= main_x 154), 105076#(<= main_x 153), 105079#(<= main_x 156), 105078#(<= main_x 155), 105081#(<= main_x 158), 105080#(<= main_x 157), 105083#(<= main_x 160), 105082#(<= main_x 159), 105085#(<= main_x 162), 105084#(<= main_x 161), 105087#(<= main_x 164), 105086#(<= main_x 163), 105089#(<= main_x 166), 105088#(<= main_x 165), 105091#(<= main_x 168), 105090#(<= main_x 167), 105093#(<= main_x 170), 105092#(<= main_x 169), 105095#(<= main_x 172), 105094#(<= main_x 171), 105097#(<= main_x 174), 105096#(<= main_x 173), 105099#(<= main_x 176), 105098#(<= main_x 175), 105101#(<= main_x 178), 105100#(<= main_x 177), 105103#(<= main_x 180), 105102#(<= main_x 179), 105105#(<= main_x 182), 105104#(<= main_x 181), 105107#(<= main_x 184), 105106#(<= main_x 183), 105109#(<= main_x 186), 105108#(<= main_x 185), 105111#(<= main_x 188), 105110#(<= main_x 187), 105113#(<= main_x 190), 105112#(<= main_x 189), 105115#(<= main_x 192), 105114#(<= main_x 191), 105117#(<= main_x 194), 105116#(<= main_x 193), 105119#(<= main_x 196), 105118#(<= main_x 195), 105121#(<= main_x 198), 105120#(<= main_x 197), 105123#(<= main_x 200), 105122#(<= main_x 199), 104921#true, 104923#(<= main_x 0), 104922#false, 104925#(<= main_x 2), 104924#(<= main_x 1), 104927#(<= main_x 4), 104926#(<= main_x 3), 104929#(<= main_x 6), 104928#(<= main_x 5), 104931#(<= main_x 8), 104930#(<= main_x 7), 104933#(<= main_x 10), 104932#(<= main_x 9), 104935#(<= main_x 12), 104934#(<= main_x 11), 104937#(<= main_x 14), 104936#(<= main_x 13), 104939#(<= main_x 16), 104938#(<= main_x 15), 104941#(<= main_x 18), 104940#(<= main_x 17), 104943#(<= main_x 20), 104942#(<= main_x 19), 104945#(<= main_x 22), 104944#(<= main_x 21), 104947#(<= main_x 24), 104946#(<= main_x 23), 104949#(<= main_x 26), 104948#(<= main_x 25), 104951#(<= main_x 28), 104950#(<= main_x 27), 104953#(<= main_x 30), 104952#(<= main_x 29), 104955#(<= main_x 32), 104954#(<= main_x 31), 104957#(<= main_x 34), 104956#(<= main_x 33), 104959#(<= main_x 36), 104958#(<= main_x 35)] [2018-07-23 13:56:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20100 backedges. 0 proven. 20100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:55,058 INFO L450 AbstractCegarLoop]: Interpolant automaton has 203 states [2018-07-23 13:56:55,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2018-07-23 13:56:55,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20503, Invalid=20503, Unknown=0, NotChecked=0, Total=41006 [2018-07-23 13:56:55,061 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand 203 states. [2018-07-23 13:56:55,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:55,815 INFO L93 Difference]: Finished difference Result 207 states and 207 transitions. [2018-07-23 13:56:55,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2018-07-23 13:56:55,815 INFO L78 Accepts]: Start accepts. Automaton has 203 states. Word has length 203 [2018-07-23 13:56:55,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:55,816 INFO L225 Difference]: With dead ends: 207 [2018-07-23 13:56:55,816 INFO L226 Difference]: Without dead ends: 205 [2018-07-23 13:56:55,817 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20503, Invalid=20503, Unknown=0, NotChecked=0, Total=41006 [2018-07-23 13:56:55,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-07-23 13:56:55,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2018-07-23 13:56:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-07-23 13:56:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 205 transitions. [2018-07-23 13:56:55,820 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 205 transitions. Word has length 203 [2018-07-23 13:56:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:55,820 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 205 transitions. [2018-07-23 13:56:55,820 INFO L472 AbstractCegarLoop]: Interpolant automaton has 203 states. [2018-07-23 13:56:55,820 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 205 transitions. [2018-07-23 13:56:55,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-07-23 13:56:55,820 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:55,821 INFO L357 BasicCegarLoop]: trace histogram [201, 1, 1, 1] [2018-07-23 13:56:55,821 INFO L414 AbstractCegarLoop]: === Iteration 202 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:55,821 INFO L82 PathProgramCache]: Analyzing trace with hash 519490694, now seen corresponding path program 201 times [2018-07-23 13:56:55,821 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 20301 backedges. 0 proven. 20301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:56,867 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:56,867 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [203] total 203 [2018-07-23 13:56:56,868 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:56,868 INFO L185 omatonBuilderFactory]: Interpolants [105985#(<= main_x 35), 105984#(<= main_x 34), 105987#(<= main_x 37), 105986#(<= main_x 36), 105989#(<= main_x 39), 105988#(<= main_x 38), 105991#(<= main_x 41), 105990#(<= main_x 40), 105993#(<= main_x 43), 105992#(<= main_x 42), 105995#(<= main_x 45), 105994#(<= main_x 44), 105997#(<= main_x 47), 105996#(<= main_x 46), 105999#(<= main_x 49), 105998#(<= main_x 48), 106001#(<= main_x 51), 106000#(<= main_x 50), 106003#(<= main_x 53), 106002#(<= main_x 52), 106005#(<= main_x 55), 106004#(<= main_x 54), 106007#(<= main_x 57), 106006#(<= main_x 56), 106009#(<= main_x 59), 106008#(<= main_x 58), 106011#(<= main_x 61), 106010#(<= main_x 60), 106013#(<= main_x 63), 106012#(<= main_x 62), 106015#(<= main_x 65), 106014#(<= main_x 64), 106017#(<= main_x 67), 106016#(<= main_x 66), 106019#(<= main_x 69), 106018#(<= main_x 68), 106021#(<= main_x 71), 106020#(<= main_x 70), 106023#(<= main_x 73), 106022#(<= main_x 72), 106025#(<= main_x 75), 106024#(<= main_x 74), 106027#(<= main_x 77), 106026#(<= main_x 76), 106029#(<= main_x 79), 106028#(<= main_x 78), 106031#(<= main_x 81), 106030#(<= main_x 80), 106033#(<= main_x 83), 106032#(<= main_x 82), 106035#(<= main_x 85), 106034#(<= main_x 84), 106037#(<= main_x 87), 106036#(<= main_x 86), 106039#(<= main_x 89), 106038#(<= main_x 88), 106041#(<= main_x 91), 106040#(<= main_x 90), 106043#(<= main_x 93), 106042#(<= main_x 92), 106045#(<= main_x 95), 106044#(<= main_x 94), 106047#(<= main_x 97), 106046#(<= main_x 96), 106049#(<= main_x 99), 106048#(<= main_x 98), 106051#(<= main_x 101), 106050#(<= main_x 100), 106053#(<= main_x 103), 106052#(<= main_x 102), 106055#(<= main_x 105), 106054#(<= main_x 104), 106057#(<= main_x 107), 106056#(<= main_x 106), 106059#(<= main_x 109), 106058#(<= main_x 108), 106061#(<= main_x 111), 106060#(<= main_x 110), 106063#(<= main_x 113), 106062#(<= main_x 112), 106065#(<= main_x 115), 106064#(<= main_x 114), 106067#(<= main_x 117), 106066#(<= main_x 116), 106069#(<= main_x 119), 106068#(<= main_x 118), 106071#(<= main_x 121), 106070#(<= main_x 120), 106073#(<= main_x 123), 106072#(<= main_x 122), 106075#(<= main_x 125), 106074#(<= main_x 124), 106077#(<= main_x 127), 106076#(<= main_x 126), 106079#(<= main_x 129), 106078#(<= main_x 128), 106081#(<= main_x 131), 106080#(<= main_x 130), 106083#(<= main_x 133), 106082#(<= main_x 132), 106085#(<= main_x 135), 106084#(<= main_x 134), 106087#(<= main_x 137), 106086#(<= main_x 136), 106089#(<= main_x 139), 106088#(<= main_x 138), 106091#(<= main_x 141), 106090#(<= main_x 140), 106093#(<= main_x 143), 106092#(<= main_x 142), 106095#(<= main_x 145), 106094#(<= main_x 144), 106097#(<= main_x 147), 106096#(<= main_x 146), 106099#(<= main_x 149), 106098#(<= main_x 148), 106101#(<= main_x 151), 106100#(<= main_x 150), 106103#(<= main_x 153), 106102#(<= main_x 152), 106105#(<= main_x 155), 106104#(<= main_x 154), 106107#(<= main_x 157), 106106#(<= main_x 156), 106109#(<= main_x 159), 106108#(<= main_x 158), 106111#(<= main_x 161), 106110#(<= main_x 160), 106113#(<= main_x 163), 106112#(<= main_x 162), 106115#(<= main_x 165), 106114#(<= main_x 164), 106117#(<= main_x 167), 106116#(<= main_x 166), 106119#(<= main_x 169), 106118#(<= main_x 168), 106121#(<= main_x 171), 106120#(<= main_x 170), 106123#(<= main_x 173), 106122#(<= main_x 172), 106125#(<= main_x 175), 106124#(<= main_x 174), 106127#(<= main_x 177), 106126#(<= main_x 176), 106129#(<= main_x 179), 106128#(<= main_x 178), 106131#(<= main_x 181), 106130#(<= main_x 180), 106133#(<= main_x 183), 106132#(<= main_x 182), 106135#(<= main_x 185), 106134#(<= main_x 184), 106137#(<= main_x 187), 106136#(<= main_x 186), 106139#(<= main_x 189), 106138#(<= main_x 188), 106141#(<= main_x 191), 106140#(<= main_x 190), 106143#(<= main_x 193), 106142#(<= main_x 192), 106145#(<= main_x 195), 106144#(<= main_x 194), 106147#(<= main_x 197), 106146#(<= main_x 196), 106149#(<= main_x 199), 106148#(<= main_x 198), 106151#(<= main_x 201), 106150#(<= main_x 200), 105949#false, 105948#true, 105951#(<= main_x 1), 105950#(<= main_x 0), 105953#(<= main_x 3), 105952#(<= main_x 2), 105955#(<= main_x 5), 105954#(<= main_x 4), 105957#(<= main_x 7), 105956#(<= main_x 6), 105959#(<= main_x 9), 105958#(<= main_x 8), 105961#(<= main_x 11), 105960#(<= main_x 10), 105963#(<= main_x 13), 105962#(<= main_x 12), 105965#(<= main_x 15), 105964#(<= main_x 14), 105967#(<= main_x 17), 105966#(<= main_x 16), 105969#(<= main_x 19), 105968#(<= main_x 18), 105971#(<= main_x 21), 105970#(<= main_x 20), 105973#(<= main_x 23), 105972#(<= main_x 22), 105975#(<= main_x 25), 105974#(<= main_x 24), 105977#(<= main_x 27), 105976#(<= main_x 26), 105979#(<= main_x 29), 105978#(<= main_x 28), 105981#(<= main_x 31), 105980#(<= main_x 30), 105983#(<= main_x 33), 105982#(<= main_x 32)] [2018-07-23 13:56:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 20301 backedges. 0 proven. 20301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:56,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 204 states [2018-07-23 13:56:56,871 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2018-07-23 13:56:56,872 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20706, Invalid=20706, Unknown=0, NotChecked=0, Total=41412 [2018-07-23 13:56:56,872 INFO L87 Difference]: Start difference. First operand 205 states and 205 transitions. Second operand 204 states. [2018-07-23 13:56:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:57,649 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2018-07-23 13:56:57,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2018-07-23 13:56:57,650 INFO L78 Accepts]: Start accepts. Automaton has 204 states. Word has length 204 [2018-07-23 13:56:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:57,650 INFO L225 Difference]: With dead ends: 208 [2018-07-23 13:56:57,650 INFO L226 Difference]: Without dead ends: 206 [2018-07-23 13:56:57,651 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20706, Invalid=20706, Unknown=0, NotChecked=0, Total=41412 [2018-07-23 13:56:57,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-07-23 13:56:57,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2018-07-23 13:56:57,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-07-23 13:56:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 206 transitions. [2018-07-23 13:56:57,654 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 206 transitions. Word has length 204 [2018-07-23 13:56:57,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:57,654 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 206 transitions. [2018-07-23 13:56:57,654 INFO L472 AbstractCegarLoop]: Interpolant automaton has 204 states. [2018-07-23 13:56:57,654 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 206 transitions. [2018-07-23 13:56:57,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-07-23 13:56:57,655 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:57,655 INFO L357 BasicCegarLoop]: trace histogram [202, 1, 1, 1] [2018-07-23 13:56:57,655 INFO L414 AbstractCegarLoop]: === Iteration 203 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:57,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1075661536, now seen corresponding path program 202 times [2018-07-23 13:56:57,655 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20503 backedges. 0 proven. 20503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:58,691 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:58,692 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [204] total 204 [2018-07-23 13:56:58,692 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:58,692 INFO L185 omatonBuilderFactory]: Interpolants [107009#(<= main_x 27), 107008#(<= main_x 26), 107011#(<= main_x 29), 107010#(<= main_x 28), 107013#(<= main_x 31), 107012#(<= main_x 30), 107015#(<= main_x 33), 107014#(<= main_x 32), 107017#(<= main_x 35), 107016#(<= main_x 34), 107019#(<= main_x 37), 107018#(<= main_x 36), 107021#(<= main_x 39), 107020#(<= main_x 38), 107023#(<= main_x 41), 107022#(<= main_x 40), 107025#(<= main_x 43), 107024#(<= main_x 42), 107027#(<= main_x 45), 107026#(<= main_x 44), 107029#(<= main_x 47), 107028#(<= main_x 46), 107031#(<= main_x 49), 107030#(<= main_x 48), 107033#(<= main_x 51), 107032#(<= main_x 50), 107035#(<= main_x 53), 107034#(<= main_x 52), 107037#(<= main_x 55), 107036#(<= main_x 54), 107039#(<= main_x 57), 107038#(<= main_x 56), 107041#(<= main_x 59), 107040#(<= main_x 58), 107043#(<= main_x 61), 107042#(<= main_x 60), 107045#(<= main_x 63), 107044#(<= main_x 62), 107047#(<= main_x 65), 107046#(<= main_x 64), 107049#(<= main_x 67), 107048#(<= main_x 66), 107051#(<= main_x 69), 107050#(<= main_x 68), 107053#(<= main_x 71), 107052#(<= main_x 70), 107055#(<= main_x 73), 107054#(<= main_x 72), 107057#(<= main_x 75), 107056#(<= main_x 74), 107059#(<= main_x 77), 107058#(<= main_x 76), 107061#(<= main_x 79), 107060#(<= main_x 78), 107063#(<= main_x 81), 107062#(<= main_x 80), 107065#(<= main_x 83), 107064#(<= main_x 82), 107067#(<= main_x 85), 107066#(<= main_x 84), 107069#(<= main_x 87), 107068#(<= main_x 86), 107071#(<= main_x 89), 107070#(<= main_x 88), 107073#(<= main_x 91), 107072#(<= main_x 90), 107075#(<= main_x 93), 107074#(<= main_x 92), 107077#(<= main_x 95), 107076#(<= main_x 94), 107079#(<= main_x 97), 107078#(<= main_x 96), 107081#(<= main_x 99), 107080#(<= main_x 98), 107083#(<= main_x 101), 107082#(<= main_x 100), 107085#(<= main_x 103), 107084#(<= main_x 102), 107087#(<= main_x 105), 107086#(<= main_x 104), 107089#(<= main_x 107), 107088#(<= main_x 106), 107091#(<= main_x 109), 107090#(<= main_x 108), 107093#(<= main_x 111), 107092#(<= main_x 110), 107095#(<= main_x 113), 107094#(<= main_x 112), 107097#(<= main_x 115), 107096#(<= main_x 114), 107099#(<= main_x 117), 107098#(<= main_x 116), 107101#(<= main_x 119), 107100#(<= main_x 118), 107103#(<= main_x 121), 107102#(<= main_x 120), 107105#(<= main_x 123), 107104#(<= main_x 122), 107107#(<= main_x 125), 107106#(<= main_x 124), 107109#(<= main_x 127), 107108#(<= main_x 126), 107111#(<= main_x 129), 107110#(<= main_x 128), 107113#(<= main_x 131), 107112#(<= main_x 130), 107115#(<= main_x 133), 107114#(<= main_x 132), 107117#(<= main_x 135), 107116#(<= main_x 134), 107119#(<= main_x 137), 107118#(<= main_x 136), 107121#(<= main_x 139), 107120#(<= main_x 138), 107123#(<= main_x 141), 107122#(<= main_x 140), 107125#(<= main_x 143), 107124#(<= main_x 142), 107127#(<= main_x 145), 107126#(<= main_x 144), 107129#(<= main_x 147), 107128#(<= main_x 146), 107131#(<= main_x 149), 107130#(<= main_x 148), 107133#(<= main_x 151), 107132#(<= main_x 150), 107135#(<= main_x 153), 107134#(<= main_x 152), 107137#(<= main_x 155), 107136#(<= main_x 154), 107139#(<= main_x 157), 107138#(<= main_x 156), 107141#(<= main_x 159), 107140#(<= main_x 158), 107143#(<= main_x 161), 107142#(<= main_x 160), 107145#(<= main_x 163), 107144#(<= main_x 162), 107147#(<= main_x 165), 107146#(<= main_x 164), 107149#(<= main_x 167), 107148#(<= main_x 166), 107151#(<= main_x 169), 107150#(<= main_x 168), 107153#(<= main_x 171), 107152#(<= main_x 170), 107155#(<= main_x 173), 107154#(<= main_x 172), 107157#(<= main_x 175), 107156#(<= main_x 174), 107159#(<= main_x 177), 107158#(<= main_x 176), 107161#(<= main_x 179), 107160#(<= main_x 178), 107163#(<= main_x 181), 107162#(<= main_x 180), 107165#(<= main_x 183), 107164#(<= main_x 182), 107167#(<= main_x 185), 107166#(<= main_x 184), 107169#(<= main_x 187), 107168#(<= main_x 186), 107171#(<= main_x 189), 107170#(<= main_x 188), 107173#(<= main_x 191), 107172#(<= main_x 190), 107175#(<= main_x 193), 107174#(<= main_x 192), 107177#(<= main_x 195), 107176#(<= main_x 194), 107179#(<= main_x 197), 107178#(<= main_x 196), 107181#(<= main_x 199), 107180#(<= main_x 198), 107183#(<= main_x 201), 107182#(<= main_x 200), 107184#(<= main_x 202), 106981#false, 106980#true, 106983#(<= main_x 1), 106982#(<= main_x 0), 106985#(<= main_x 3), 106984#(<= main_x 2), 106987#(<= main_x 5), 106986#(<= main_x 4), 106989#(<= main_x 7), 106988#(<= main_x 6), 106991#(<= main_x 9), 106990#(<= main_x 8), 106993#(<= main_x 11), 106992#(<= main_x 10), 106995#(<= main_x 13), 106994#(<= main_x 12), 106997#(<= main_x 15), 106996#(<= main_x 14), 106999#(<= main_x 17), 106998#(<= main_x 16), 107001#(<= main_x 19), 107000#(<= main_x 18), 107003#(<= main_x 21), 107002#(<= main_x 20), 107005#(<= main_x 23), 107004#(<= main_x 22), 107007#(<= main_x 25), 107006#(<= main_x 24)] [2018-07-23 13:56:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 20503 backedges. 0 proven. 20503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:58,693 INFO L450 AbstractCegarLoop]: Interpolant automaton has 205 states [2018-07-23 13:56:58,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2018-07-23 13:56:58,697 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20910, Invalid=20910, Unknown=0, NotChecked=0, Total=41820 [2018-07-23 13:56:58,697 INFO L87 Difference]: Start difference. First operand 206 states and 206 transitions. Second operand 205 states. [2018-07-23 13:56:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:59,761 INFO L93 Difference]: Finished difference Result 209 states and 209 transitions. [2018-07-23 13:56:59,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2018-07-23 13:56:59,761 INFO L78 Accepts]: Start accepts. Automaton has 205 states. Word has length 205 [2018-07-23 13:56:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:59,761 INFO L225 Difference]: With dead ends: 209 [2018-07-23 13:56:59,761 INFO L226 Difference]: Without dead ends: 207 [2018-07-23 13:56:59,764 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20910, Invalid=20910, Unknown=0, NotChecked=0, Total=41820 [2018-07-23 13:56:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-07-23 13:56:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2018-07-23 13:56:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-07-23 13:56:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 207 transitions. [2018-07-23 13:56:59,767 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 207 transitions. Word has length 205 [2018-07-23 13:56:59,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:59,767 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 207 transitions. [2018-07-23 13:56:59,767 INFO L472 AbstractCegarLoop]: Interpolant automaton has 205 states. [2018-07-23 13:56:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 207 transitions. [2018-07-23 13:56:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-07-23 13:56:59,768 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:59,768 INFO L357 BasicCegarLoop]: trace histogram [203, 1, 1, 1] [2018-07-23 13:56:59,768 INFO L414 AbstractCegarLoop]: === Iteration 204 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:59,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1014226886, now seen corresponding path program 203 times [2018-07-23 13:56:59,768 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 20706 backedges. 0 proven. 20706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:01,009 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:01,009 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [205] total 205 [2018-07-23 13:57:01,009 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:01,009 INFO L185 omatonBuilderFactory]: Interpolants [108033#(<= main_x 14), 108032#(<= main_x 13), 108035#(<= main_x 16), 108034#(<= main_x 15), 108037#(<= main_x 18), 108036#(<= main_x 17), 108039#(<= main_x 20), 108038#(<= main_x 19), 108041#(<= main_x 22), 108040#(<= main_x 21), 108043#(<= main_x 24), 108042#(<= main_x 23), 108045#(<= main_x 26), 108044#(<= main_x 25), 108047#(<= main_x 28), 108046#(<= main_x 27), 108049#(<= main_x 30), 108048#(<= main_x 29), 108051#(<= main_x 32), 108050#(<= main_x 31), 108053#(<= main_x 34), 108052#(<= main_x 33), 108055#(<= main_x 36), 108054#(<= main_x 35), 108057#(<= main_x 38), 108056#(<= main_x 37), 108059#(<= main_x 40), 108058#(<= main_x 39), 108061#(<= main_x 42), 108060#(<= main_x 41), 108063#(<= main_x 44), 108062#(<= main_x 43), 108065#(<= main_x 46), 108064#(<= main_x 45), 108067#(<= main_x 48), 108066#(<= main_x 47), 108069#(<= main_x 50), 108068#(<= main_x 49), 108071#(<= main_x 52), 108070#(<= main_x 51), 108073#(<= main_x 54), 108072#(<= main_x 53), 108075#(<= main_x 56), 108074#(<= main_x 55), 108077#(<= main_x 58), 108076#(<= main_x 57), 108079#(<= main_x 60), 108078#(<= main_x 59), 108081#(<= main_x 62), 108080#(<= main_x 61), 108083#(<= main_x 64), 108082#(<= main_x 63), 108085#(<= main_x 66), 108084#(<= main_x 65), 108087#(<= main_x 68), 108086#(<= main_x 67), 108089#(<= main_x 70), 108088#(<= main_x 69), 108091#(<= main_x 72), 108090#(<= main_x 71), 108093#(<= main_x 74), 108092#(<= main_x 73), 108095#(<= main_x 76), 108094#(<= main_x 75), 108097#(<= main_x 78), 108096#(<= main_x 77), 108099#(<= main_x 80), 108098#(<= main_x 79), 108101#(<= main_x 82), 108100#(<= main_x 81), 108103#(<= main_x 84), 108102#(<= main_x 83), 108105#(<= main_x 86), 108104#(<= main_x 85), 108107#(<= main_x 88), 108106#(<= main_x 87), 108109#(<= main_x 90), 108108#(<= main_x 89), 108111#(<= main_x 92), 108110#(<= main_x 91), 108113#(<= main_x 94), 108112#(<= main_x 93), 108115#(<= main_x 96), 108114#(<= main_x 95), 108117#(<= main_x 98), 108116#(<= main_x 97), 108119#(<= main_x 100), 108118#(<= main_x 99), 108121#(<= main_x 102), 108120#(<= main_x 101), 108123#(<= main_x 104), 108122#(<= main_x 103), 108125#(<= main_x 106), 108124#(<= main_x 105), 108127#(<= main_x 108), 108126#(<= main_x 107), 108129#(<= main_x 110), 108128#(<= main_x 109), 108131#(<= main_x 112), 108130#(<= main_x 111), 108133#(<= main_x 114), 108132#(<= main_x 113), 108135#(<= main_x 116), 108134#(<= main_x 115), 108137#(<= main_x 118), 108136#(<= main_x 117), 108139#(<= main_x 120), 108138#(<= main_x 119), 108141#(<= main_x 122), 108140#(<= main_x 121), 108143#(<= main_x 124), 108142#(<= main_x 123), 108145#(<= main_x 126), 108144#(<= main_x 125), 108147#(<= main_x 128), 108146#(<= main_x 127), 108149#(<= main_x 130), 108148#(<= main_x 129), 108151#(<= main_x 132), 108150#(<= main_x 131), 108153#(<= main_x 134), 108152#(<= main_x 133), 108155#(<= main_x 136), 108154#(<= main_x 135), 108157#(<= main_x 138), 108156#(<= main_x 137), 108159#(<= main_x 140), 108158#(<= main_x 139), 108161#(<= main_x 142), 108160#(<= main_x 141), 108163#(<= main_x 144), 108162#(<= main_x 143), 108165#(<= main_x 146), 108164#(<= main_x 145), 108167#(<= main_x 148), 108166#(<= main_x 147), 108169#(<= main_x 150), 108168#(<= main_x 149), 108171#(<= main_x 152), 108170#(<= main_x 151), 108173#(<= main_x 154), 108172#(<= main_x 153), 108175#(<= main_x 156), 108174#(<= main_x 155), 108177#(<= main_x 158), 108176#(<= main_x 157), 108179#(<= main_x 160), 108178#(<= main_x 159), 108181#(<= main_x 162), 108180#(<= main_x 161), 108183#(<= main_x 164), 108182#(<= main_x 163), 108185#(<= main_x 166), 108184#(<= main_x 165), 108187#(<= main_x 168), 108186#(<= main_x 167), 108189#(<= main_x 170), 108188#(<= main_x 169), 108191#(<= main_x 172), 108190#(<= main_x 171), 108193#(<= main_x 174), 108192#(<= main_x 173), 108195#(<= main_x 176), 108194#(<= main_x 175), 108197#(<= main_x 178), 108196#(<= main_x 177), 108199#(<= main_x 180), 108198#(<= main_x 179), 108201#(<= main_x 182), 108200#(<= main_x 181), 108203#(<= main_x 184), 108202#(<= main_x 183), 108205#(<= main_x 186), 108204#(<= main_x 185), 108207#(<= main_x 188), 108206#(<= main_x 187), 108209#(<= main_x 190), 108208#(<= main_x 189), 108211#(<= main_x 192), 108210#(<= main_x 191), 108213#(<= main_x 194), 108212#(<= main_x 193), 108215#(<= main_x 196), 108214#(<= main_x 195), 108217#(<= main_x 198), 108216#(<= main_x 197), 108219#(<= main_x 200), 108218#(<= main_x 199), 108221#(<= main_x 202), 108220#(<= main_x 201), 108222#(<= main_x 203), 108017#true, 108019#(<= main_x 0), 108018#false, 108021#(<= main_x 2), 108020#(<= main_x 1), 108023#(<= main_x 4), 108022#(<= main_x 3), 108025#(<= main_x 6), 108024#(<= main_x 5), 108027#(<= main_x 8), 108026#(<= main_x 7), 108029#(<= main_x 10), 108028#(<= main_x 9), 108031#(<= main_x 12), 108030#(<= main_x 11)] [2018-07-23 13:57:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 20706 backedges. 0 proven. 20706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:01,010 INFO L450 AbstractCegarLoop]: Interpolant automaton has 206 states [2018-07-23 13:57:01,012 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 206 interpolants. [2018-07-23 13:57:01,013 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21115, Invalid=21115, Unknown=0, NotChecked=0, Total=42230 [2018-07-23 13:57:01,013 INFO L87 Difference]: Start difference. First operand 207 states and 207 transitions. Second operand 206 states. [2018-07-23 13:57:02,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:02,264 INFO L93 Difference]: Finished difference Result 210 states and 210 transitions. [2018-07-23 13:57:02,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2018-07-23 13:57:02,264 INFO L78 Accepts]: Start accepts. Automaton has 206 states. Word has length 206 [2018-07-23 13:57:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:02,265 INFO L225 Difference]: With dead ends: 210 [2018-07-23 13:57:02,265 INFO L226 Difference]: Without dead ends: 208 [2018-07-23 13:57:02,266 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21115, Invalid=21115, Unknown=0, NotChecked=0, Total=42230 [2018-07-23 13:57:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-07-23 13:57:02,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-07-23 13:57:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-07-23 13:57:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2018-07-23 13:57:02,269 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 206 [2018-07-23 13:57:02,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:02,269 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2018-07-23 13:57:02,269 INFO L472 AbstractCegarLoop]: Interpolant automaton has 206 states. [2018-07-23 13:57:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2018-07-23 13:57:02,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-07-23 13:57:02,269 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:02,270 INFO L357 BasicCegarLoop]: trace histogram [204, 1, 1, 1] [2018-07-23 13:57:02,270 INFO L414 AbstractCegarLoop]: === Iteration 205 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:02,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1376258528, now seen corresponding path program 204 times [2018-07-23 13:57:02,270 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:03,466 INFO L134 CoverageAnalysis]: Checked inductivity of 20910 backedges. 0 proven. 20910 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:03,466 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:03,466 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [206] total 206 [2018-07-23 13:57:03,467 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:03,467 INFO L185 omatonBuilderFactory]: Interpolants [109059#true, 109061#(<= main_x 0), 109060#false, 109063#(<= main_x 2), 109062#(<= main_x 1), 109065#(<= main_x 4), 109064#(<= main_x 3), 109067#(<= main_x 6), 109066#(<= main_x 5), 109069#(<= main_x 8), 109068#(<= main_x 7), 109071#(<= main_x 10), 109070#(<= main_x 9), 109073#(<= main_x 12), 109072#(<= main_x 11), 109075#(<= main_x 14), 109074#(<= main_x 13), 109077#(<= main_x 16), 109076#(<= main_x 15), 109079#(<= main_x 18), 109078#(<= main_x 17), 109081#(<= main_x 20), 109080#(<= main_x 19), 109083#(<= main_x 22), 109082#(<= main_x 21), 109085#(<= main_x 24), 109084#(<= main_x 23), 109087#(<= main_x 26), 109086#(<= main_x 25), 109089#(<= main_x 28), 109088#(<= main_x 27), 109091#(<= main_x 30), 109090#(<= main_x 29), 109093#(<= main_x 32), 109092#(<= main_x 31), 109095#(<= main_x 34), 109094#(<= main_x 33), 109097#(<= main_x 36), 109096#(<= main_x 35), 109099#(<= main_x 38), 109098#(<= main_x 37), 109101#(<= main_x 40), 109100#(<= main_x 39), 109103#(<= main_x 42), 109102#(<= main_x 41), 109105#(<= main_x 44), 109104#(<= main_x 43), 109107#(<= main_x 46), 109106#(<= main_x 45), 109109#(<= main_x 48), 109108#(<= main_x 47), 109111#(<= main_x 50), 109110#(<= main_x 49), 109113#(<= main_x 52), 109112#(<= main_x 51), 109115#(<= main_x 54), 109114#(<= main_x 53), 109117#(<= main_x 56), 109116#(<= main_x 55), 109119#(<= main_x 58), 109118#(<= main_x 57), 109121#(<= main_x 60), 109120#(<= main_x 59), 109123#(<= main_x 62), 109122#(<= main_x 61), 109125#(<= main_x 64), 109124#(<= main_x 63), 109127#(<= main_x 66), 109126#(<= main_x 65), 109129#(<= main_x 68), 109128#(<= main_x 67), 109131#(<= main_x 70), 109130#(<= main_x 69), 109133#(<= main_x 72), 109132#(<= main_x 71), 109135#(<= main_x 74), 109134#(<= main_x 73), 109137#(<= main_x 76), 109136#(<= main_x 75), 109139#(<= main_x 78), 109138#(<= main_x 77), 109141#(<= main_x 80), 109140#(<= main_x 79), 109143#(<= main_x 82), 109142#(<= main_x 81), 109145#(<= main_x 84), 109144#(<= main_x 83), 109147#(<= main_x 86), 109146#(<= main_x 85), 109149#(<= main_x 88), 109148#(<= main_x 87), 109151#(<= main_x 90), 109150#(<= main_x 89), 109153#(<= main_x 92), 109152#(<= main_x 91), 109155#(<= main_x 94), 109154#(<= main_x 93), 109157#(<= main_x 96), 109156#(<= main_x 95), 109159#(<= main_x 98), 109158#(<= main_x 97), 109161#(<= main_x 100), 109160#(<= main_x 99), 109163#(<= main_x 102), 109162#(<= main_x 101), 109165#(<= main_x 104), 109164#(<= main_x 103), 109167#(<= main_x 106), 109166#(<= main_x 105), 109169#(<= main_x 108), 109168#(<= main_x 107), 109171#(<= main_x 110), 109170#(<= main_x 109), 109173#(<= main_x 112), 109172#(<= main_x 111), 109175#(<= main_x 114), 109174#(<= main_x 113), 109177#(<= main_x 116), 109176#(<= main_x 115), 109179#(<= main_x 118), 109178#(<= main_x 117), 109181#(<= main_x 120), 109180#(<= main_x 119), 109183#(<= main_x 122), 109182#(<= main_x 121), 109185#(<= main_x 124), 109184#(<= main_x 123), 109187#(<= main_x 126), 109186#(<= main_x 125), 109189#(<= main_x 128), 109188#(<= main_x 127), 109191#(<= main_x 130), 109190#(<= main_x 129), 109193#(<= main_x 132), 109192#(<= main_x 131), 109195#(<= main_x 134), 109194#(<= main_x 133), 109197#(<= main_x 136), 109196#(<= main_x 135), 109199#(<= main_x 138), 109198#(<= main_x 137), 109201#(<= main_x 140), 109200#(<= main_x 139), 109203#(<= main_x 142), 109202#(<= main_x 141), 109205#(<= main_x 144), 109204#(<= main_x 143), 109207#(<= main_x 146), 109206#(<= main_x 145), 109209#(<= main_x 148), 109208#(<= main_x 147), 109211#(<= main_x 150), 109210#(<= main_x 149), 109213#(<= main_x 152), 109212#(<= main_x 151), 109215#(<= main_x 154), 109214#(<= main_x 153), 109217#(<= main_x 156), 109216#(<= main_x 155), 109219#(<= main_x 158), 109218#(<= main_x 157), 109221#(<= main_x 160), 109220#(<= main_x 159), 109223#(<= main_x 162), 109222#(<= main_x 161), 109225#(<= main_x 164), 109224#(<= main_x 163), 109227#(<= main_x 166), 109226#(<= main_x 165), 109229#(<= main_x 168), 109228#(<= main_x 167), 109231#(<= main_x 170), 109230#(<= main_x 169), 109233#(<= main_x 172), 109232#(<= main_x 171), 109235#(<= main_x 174), 109234#(<= main_x 173), 109237#(<= main_x 176), 109236#(<= main_x 175), 109239#(<= main_x 178), 109238#(<= main_x 177), 109241#(<= main_x 180), 109240#(<= main_x 179), 109243#(<= main_x 182), 109242#(<= main_x 181), 109245#(<= main_x 184), 109244#(<= main_x 183), 109247#(<= main_x 186), 109246#(<= main_x 185), 109249#(<= main_x 188), 109248#(<= main_x 187), 109251#(<= main_x 190), 109250#(<= main_x 189), 109253#(<= main_x 192), 109252#(<= main_x 191), 109255#(<= main_x 194), 109254#(<= main_x 193), 109257#(<= main_x 196), 109256#(<= main_x 195), 109259#(<= main_x 198), 109258#(<= main_x 197), 109261#(<= main_x 200), 109260#(<= main_x 199), 109263#(<= main_x 202), 109262#(<= main_x 201), 109265#(<= main_x 204), 109264#(<= main_x 203)] [2018-07-23 13:57:03,468 INFO L134 CoverageAnalysis]: Checked inductivity of 20910 backedges. 0 proven. 20910 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:03,468 INFO L450 AbstractCegarLoop]: Interpolant automaton has 207 states [2018-07-23 13:57:03,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 207 interpolants. [2018-07-23 13:57:03,473 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21321, Invalid=21321, Unknown=0, NotChecked=0, Total=42642 [2018-07-23 13:57:03,473 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand 207 states. [2018-07-23 13:57:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:04,980 INFO L93 Difference]: Finished difference Result 211 states and 211 transitions. [2018-07-23 13:57:04,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 207 states. [2018-07-23 13:57:04,980 INFO L78 Accepts]: Start accepts. Automaton has 207 states. Word has length 207 [2018-07-23 13:57:04,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:04,981 INFO L225 Difference]: With dead ends: 211 [2018-07-23 13:57:04,981 INFO L226 Difference]: Without dead ends: 209 [2018-07-23 13:57:04,984 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21321, Invalid=21321, Unknown=0, NotChecked=0, Total=42642 [2018-07-23 13:57:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-07-23 13:57:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2018-07-23 13:57:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-07-23 13:57:04,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2018-07-23 13:57:04,986 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 207 [2018-07-23 13:57:04,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:04,986 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2018-07-23 13:57:04,987 INFO L472 AbstractCegarLoop]: Interpolant automaton has 207 states. [2018-07-23 13:57:04,987 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2018-07-23 13:57:04,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-07-23 13:57:04,987 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:04,987 INFO L357 BasicCegarLoop]: trace histogram [205, 1, 1, 1] [2018-07-23 13:57:04,987 INFO L414 AbstractCegarLoop]: === Iteration 206 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:04,987 INFO L82 PathProgramCache]: Analyzing trace with hash -285662458, now seen corresponding path program 205 times [2018-07-23 13:57:04,988 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 21115 backedges. 0 proven. 21115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:06,205 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:06,206 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [207] total 207 [2018-07-23 13:57:06,206 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:06,206 INFO L185 omatonBuilderFactory]: Interpolants [110107#false, 110106#true, 110109#(<= main_x 1), 110108#(<= main_x 0), 110111#(<= main_x 3), 110110#(<= main_x 2), 110113#(<= main_x 5), 110112#(<= main_x 4), 110115#(<= main_x 7), 110114#(<= main_x 6), 110117#(<= main_x 9), 110116#(<= main_x 8), 110119#(<= main_x 11), 110118#(<= main_x 10), 110121#(<= main_x 13), 110120#(<= main_x 12), 110123#(<= main_x 15), 110122#(<= main_x 14), 110125#(<= main_x 17), 110124#(<= main_x 16), 110127#(<= main_x 19), 110126#(<= main_x 18), 110129#(<= main_x 21), 110128#(<= main_x 20), 110131#(<= main_x 23), 110130#(<= main_x 22), 110133#(<= main_x 25), 110132#(<= main_x 24), 110135#(<= main_x 27), 110134#(<= main_x 26), 110137#(<= main_x 29), 110136#(<= main_x 28), 110139#(<= main_x 31), 110138#(<= main_x 30), 110141#(<= main_x 33), 110140#(<= main_x 32), 110143#(<= main_x 35), 110142#(<= main_x 34), 110145#(<= main_x 37), 110144#(<= main_x 36), 110147#(<= main_x 39), 110146#(<= main_x 38), 110149#(<= main_x 41), 110148#(<= main_x 40), 110151#(<= main_x 43), 110150#(<= main_x 42), 110153#(<= main_x 45), 110152#(<= main_x 44), 110155#(<= main_x 47), 110154#(<= main_x 46), 110157#(<= main_x 49), 110156#(<= main_x 48), 110159#(<= main_x 51), 110158#(<= main_x 50), 110161#(<= main_x 53), 110160#(<= main_x 52), 110163#(<= main_x 55), 110162#(<= main_x 54), 110165#(<= main_x 57), 110164#(<= main_x 56), 110167#(<= main_x 59), 110166#(<= main_x 58), 110169#(<= main_x 61), 110168#(<= main_x 60), 110171#(<= main_x 63), 110170#(<= main_x 62), 110173#(<= main_x 65), 110172#(<= main_x 64), 110175#(<= main_x 67), 110174#(<= main_x 66), 110177#(<= main_x 69), 110176#(<= main_x 68), 110179#(<= main_x 71), 110178#(<= main_x 70), 110181#(<= main_x 73), 110180#(<= main_x 72), 110183#(<= main_x 75), 110182#(<= main_x 74), 110185#(<= main_x 77), 110184#(<= main_x 76), 110187#(<= main_x 79), 110186#(<= main_x 78), 110189#(<= main_x 81), 110188#(<= main_x 80), 110191#(<= main_x 83), 110190#(<= main_x 82), 110193#(<= main_x 85), 110192#(<= main_x 84), 110195#(<= main_x 87), 110194#(<= main_x 86), 110197#(<= main_x 89), 110196#(<= main_x 88), 110199#(<= main_x 91), 110198#(<= main_x 90), 110201#(<= main_x 93), 110200#(<= main_x 92), 110203#(<= main_x 95), 110202#(<= main_x 94), 110205#(<= main_x 97), 110204#(<= main_x 96), 110207#(<= main_x 99), 110206#(<= main_x 98), 110209#(<= main_x 101), 110208#(<= main_x 100), 110211#(<= main_x 103), 110210#(<= main_x 102), 110213#(<= main_x 105), 110212#(<= main_x 104), 110215#(<= main_x 107), 110214#(<= main_x 106), 110217#(<= main_x 109), 110216#(<= main_x 108), 110219#(<= main_x 111), 110218#(<= main_x 110), 110221#(<= main_x 113), 110220#(<= main_x 112), 110223#(<= main_x 115), 110222#(<= main_x 114), 110225#(<= main_x 117), 110224#(<= main_x 116), 110227#(<= main_x 119), 110226#(<= main_x 118), 110229#(<= main_x 121), 110228#(<= main_x 120), 110231#(<= main_x 123), 110230#(<= main_x 122), 110233#(<= main_x 125), 110232#(<= main_x 124), 110235#(<= main_x 127), 110234#(<= main_x 126), 110237#(<= main_x 129), 110236#(<= main_x 128), 110239#(<= main_x 131), 110238#(<= main_x 130), 110241#(<= main_x 133), 110240#(<= main_x 132), 110243#(<= main_x 135), 110242#(<= main_x 134), 110245#(<= main_x 137), 110244#(<= main_x 136), 110247#(<= main_x 139), 110246#(<= main_x 138), 110249#(<= main_x 141), 110248#(<= main_x 140), 110251#(<= main_x 143), 110250#(<= main_x 142), 110253#(<= main_x 145), 110252#(<= main_x 144), 110255#(<= main_x 147), 110254#(<= main_x 146), 110257#(<= main_x 149), 110256#(<= main_x 148), 110259#(<= main_x 151), 110258#(<= main_x 150), 110261#(<= main_x 153), 110260#(<= main_x 152), 110263#(<= main_x 155), 110262#(<= main_x 154), 110265#(<= main_x 157), 110264#(<= main_x 156), 110267#(<= main_x 159), 110266#(<= main_x 158), 110269#(<= main_x 161), 110268#(<= main_x 160), 110271#(<= main_x 163), 110270#(<= main_x 162), 110273#(<= main_x 165), 110272#(<= main_x 164), 110275#(<= main_x 167), 110274#(<= main_x 166), 110277#(<= main_x 169), 110276#(<= main_x 168), 110279#(<= main_x 171), 110278#(<= main_x 170), 110281#(<= main_x 173), 110280#(<= main_x 172), 110283#(<= main_x 175), 110282#(<= main_x 174), 110285#(<= main_x 177), 110284#(<= main_x 176), 110287#(<= main_x 179), 110286#(<= main_x 178), 110289#(<= main_x 181), 110288#(<= main_x 180), 110291#(<= main_x 183), 110290#(<= main_x 182), 110293#(<= main_x 185), 110292#(<= main_x 184), 110295#(<= main_x 187), 110294#(<= main_x 186), 110297#(<= main_x 189), 110296#(<= main_x 188), 110299#(<= main_x 191), 110298#(<= main_x 190), 110301#(<= main_x 193), 110300#(<= main_x 192), 110303#(<= main_x 195), 110302#(<= main_x 194), 110305#(<= main_x 197), 110304#(<= main_x 196), 110307#(<= main_x 199), 110306#(<= main_x 198), 110309#(<= main_x 201), 110308#(<= main_x 200), 110311#(<= main_x 203), 110310#(<= main_x 202), 110313#(<= main_x 205), 110312#(<= main_x 204)] [2018-07-23 13:57:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 21115 backedges. 0 proven. 21115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:06,207 INFO L450 AbstractCegarLoop]: Interpolant automaton has 208 states [2018-07-23 13:57:06,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2018-07-23 13:57:06,212 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21528, Invalid=21528, Unknown=0, NotChecked=0, Total=43056 [2018-07-23 13:57:06,212 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand 208 states. [2018-07-23 13:57:07,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:07,352 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2018-07-23 13:57:07,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2018-07-23 13:57:07,352 INFO L78 Accepts]: Start accepts. Automaton has 208 states. Word has length 208 [2018-07-23 13:57:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:07,352 INFO L225 Difference]: With dead ends: 212 [2018-07-23 13:57:07,353 INFO L226 Difference]: Without dead ends: 210 [2018-07-23 13:57:07,355 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21528, Invalid=21528, Unknown=0, NotChecked=0, Total=43056 [2018-07-23 13:57:07,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-07-23 13:57:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2018-07-23 13:57:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-07-23 13:57:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 210 transitions. [2018-07-23 13:57:07,357 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 210 transitions. Word has length 208 [2018-07-23 13:57:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:07,357 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 210 transitions. [2018-07-23 13:57:07,357 INFO L472 AbstractCegarLoop]: Interpolant automaton has 208 states. [2018-07-23 13:57:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 210 transitions. [2018-07-23 13:57:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-07-23 13:57:07,358 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:07,358 INFO L357 BasicCegarLoop]: trace histogram [206, 1, 1, 1] [2018-07-23 13:57:07,358 INFO L414 AbstractCegarLoop]: === Iteration 207 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:07,358 INFO L82 PathProgramCache]: Analyzing trace with hash -265605472, now seen corresponding path program 206 times [2018-07-23 13:57:07,359 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 21321 backedges. 0 proven. 21321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:08,455 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:08,456 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [208] total 208 [2018-07-23 13:57:08,456 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:08,456 INFO L185 omatonBuilderFactory]: Interpolants [111159#false, 111158#true, 111161#(<= main_x 1), 111160#(<= main_x 0), 111163#(<= main_x 3), 111162#(<= main_x 2), 111165#(<= main_x 5), 111164#(<= main_x 4), 111167#(<= main_x 7), 111166#(<= main_x 6), 111169#(<= main_x 9), 111168#(<= main_x 8), 111171#(<= main_x 11), 111170#(<= main_x 10), 111173#(<= main_x 13), 111172#(<= main_x 12), 111175#(<= main_x 15), 111174#(<= main_x 14), 111177#(<= main_x 17), 111176#(<= main_x 16), 111179#(<= main_x 19), 111178#(<= main_x 18), 111181#(<= main_x 21), 111180#(<= main_x 20), 111183#(<= main_x 23), 111182#(<= main_x 22), 111185#(<= main_x 25), 111184#(<= main_x 24), 111187#(<= main_x 27), 111186#(<= main_x 26), 111189#(<= main_x 29), 111188#(<= main_x 28), 111191#(<= main_x 31), 111190#(<= main_x 30), 111193#(<= main_x 33), 111192#(<= main_x 32), 111195#(<= main_x 35), 111194#(<= main_x 34), 111197#(<= main_x 37), 111196#(<= main_x 36), 111199#(<= main_x 39), 111198#(<= main_x 38), 111201#(<= main_x 41), 111200#(<= main_x 40), 111203#(<= main_x 43), 111202#(<= main_x 42), 111205#(<= main_x 45), 111204#(<= main_x 44), 111207#(<= main_x 47), 111206#(<= main_x 46), 111209#(<= main_x 49), 111208#(<= main_x 48), 111211#(<= main_x 51), 111210#(<= main_x 50), 111213#(<= main_x 53), 111212#(<= main_x 52), 111215#(<= main_x 55), 111214#(<= main_x 54), 111217#(<= main_x 57), 111216#(<= main_x 56), 111219#(<= main_x 59), 111218#(<= main_x 58), 111221#(<= main_x 61), 111220#(<= main_x 60), 111223#(<= main_x 63), 111222#(<= main_x 62), 111225#(<= main_x 65), 111224#(<= main_x 64), 111227#(<= main_x 67), 111226#(<= main_x 66), 111229#(<= main_x 69), 111228#(<= main_x 68), 111231#(<= main_x 71), 111230#(<= main_x 70), 111233#(<= main_x 73), 111232#(<= main_x 72), 111235#(<= main_x 75), 111234#(<= main_x 74), 111237#(<= main_x 77), 111236#(<= main_x 76), 111239#(<= main_x 79), 111238#(<= main_x 78), 111241#(<= main_x 81), 111240#(<= main_x 80), 111243#(<= main_x 83), 111242#(<= main_x 82), 111245#(<= main_x 85), 111244#(<= main_x 84), 111247#(<= main_x 87), 111246#(<= main_x 86), 111249#(<= main_x 89), 111248#(<= main_x 88), 111251#(<= main_x 91), 111250#(<= main_x 90), 111253#(<= main_x 93), 111252#(<= main_x 92), 111255#(<= main_x 95), 111254#(<= main_x 94), 111257#(<= main_x 97), 111256#(<= main_x 96), 111259#(<= main_x 99), 111258#(<= main_x 98), 111261#(<= main_x 101), 111260#(<= main_x 100), 111263#(<= main_x 103), 111262#(<= main_x 102), 111265#(<= main_x 105), 111264#(<= main_x 104), 111267#(<= main_x 107), 111266#(<= main_x 106), 111269#(<= main_x 109), 111268#(<= main_x 108), 111271#(<= main_x 111), 111270#(<= main_x 110), 111273#(<= main_x 113), 111272#(<= main_x 112), 111275#(<= main_x 115), 111274#(<= main_x 114), 111277#(<= main_x 117), 111276#(<= main_x 116), 111279#(<= main_x 119), 111278#(<= main_x 118), 111281#(<= main_x 121), 111280#(<= main_x 120), 111283#(<= main_x 123), 111282#(<= main_x 122), 111285#(<= main_x 125), 111284#(<= main_x 124), 111287#(<= main_x 127), 111286#(<= main_x 126), 111289#(<= main_x 129), 111288#(<= main_x 128), 111291#(<= main_x 131), 111290#(<= main_x 130), 111293#(<= main_x 133), 111292#(<= main_x 132), 111295#(<= main_x 135), 111294#(<= main_x 134), 111297#(<= main_x 137), 111296#(<= main_x 136), 111299#(<= main_x 139), 111298#(<= main_x 138), 111301#(<= main_x 141), 111300#(<= main_x 140), 111303#(<= main_x 143), 111302#(<= main_x 142), 111305#(<= main_x 145), 111304#(<= main_x 144), 111307#(<= main_x 147), 111306#(<= main_x 146), 111309#(<= main_x 149), 111308#(<= main_x 148), 111311#(<= main_x 151), 111310#(<= main_x 150), 111313#(<= main_x 153), 111312#(<= main_x 152), 111315#(<= main_x 155), 111314#(<= main_x 154), 111317#(<= main_x 157), 111316#(<= main_x 156), 111319#(<= main_x 159), 111318#(<= main_x 158), 111321#(<= main_x 161), 111320#(<= main_x 160), 111323#(<= main_x 163), 111322#(<= main_x 162), 111325#(<= main_x 165), 111324#(<= main_x 164), 111327#(<= main_x 167), 111326#(<= main_x 166), 111329#(<= main_x 169), 111328#(<= main_x 168), 111331#(<= main_x 171), 111330#(<= main_x 170), 111333#(<= main_x 173), 111332#(<= main_x 172), 111335#(<= main_x 175), 111334#(<= main_x 174), 111337#(<= main_x 177), 111336#(<= main_x 176), 111339#(<= main_x 179), 111338#(<= main_x 178), 111341#(<= main_x 181), 111340#(<= main_x 180), 111343#(<= main_x 183), 111342#(<= main_x 182), 111345#(<= main_x 185), 111344#(<= main_x 184), 111347#(<= main_x 187), 111346#(<= main_x 186), 111349#(<= main_x 189), 111348#(<= main_x 188), 111351#(<= main_x 191), 111350#(<= main_x 190), 111353#(<= main_x 193), 111352#(<= main_x 192), 111355#(<= main_x 195), 111354#(<= main_x 194), 111357#(<= main_x 197), 111356#(<= main_x 196), 111359#(<= main_x 199), 111358#(<= main_x 198), 111361#(<= main_x 201), 111360#(<= main_x 200), 111363#(<= main_x 203), 111362#(<= main_x 202), 111365#(<= main_x 205), 111364#(<= main_x 204), 111366#(<= main_x 206)] [2018-07-23 13:57:08,457 INFO L134 CoverageAnalysis]: Checked inductivity of 21321 backedges. 0 proven. 21321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:08,457 INFO L450 AbstractCegarLoop]: Interpolant automaton has 209 states [2018-07-23 13:57:08,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2018-07-23 13:57:08,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21736, Invalid=21736, Unknown=0, NotChecked=0, Total=43472 [2018-07-23 13:57:08,461 INFO L87 Difference]: Start difference. First operand 210 states and 210 transitions. Second operand 209 states. [2018-07-23 13:57:09,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:09,543 INFO L93 Difference]: Finished difference Result 213 states and 213 transitions. [2018-07-23 13:57:09,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2018-07-23 13:57:09,544 INFO L78 Accepts]: Start accepts. Automaton has 209 states. Word has length 209 [2018-07-23 13:57:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:09,544 INFO L225 Difference]: With dead ends: 213 [2018-07-23 13:57:09,544 INFO L226 Difference]: Without dead ends: 211 [2018-07-23 13:57:09,546 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21736, Invalid=21736, Unknown=0, NotChecked=0, Total=43472 [2018-07-23 13:57:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-07-23 13:57:09,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2018-07-23 13:57:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-07-23 13:57:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 211 transitions. [2018-07-23 13:57:09,548 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 211 transitions. Word has length 209 [2018-07-23 13:57:09,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:09,549 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 211 transitions. [2018-07-23 13:57:09,549 INFO L472 AbstractCegarLoop]: Interpolant automaton has 209 states. [2018-07-23 13:57:09,549 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 211 transitions. [2018-07-23 13:57:09,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-07-23 13:57:09,549 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:09,549 INFO L357 BasicCegarLoop]: trace histogram [207, 1, 1, 1] [2018-07-23 13:57:09,549 INFO L414 AbstractCegarLoop]: === Iteration 208 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:09,549 INFO L82 PathProgramCache]: Analyzing trace with hash 356161094, now seen corresponding path program 207 times [2018-07-23 13:57:09,550 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 21528 backedges. 0 proven. 21528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:10,680 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:10,680 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [209] total 209 [2018-07-23 13:57:10,680 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:10,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:10,680 INFO L185 omatonBuilderFactory]: Interpolants [112215#true, 112217#(<= main_x 0), 112216#false, 112219#(<= main_x 2), 112218#(<= main_x 1), 112221#(<= main_x 4), 112220#(<= main_x 3), 112223#(<= main_x 6), 112222#(<= main_x 5), 112225#(<= main_x 8), 112224#(<= main_x 7), 112227#(<= main_x 10), 112226#(<= main_x 9), 112229#(<= main_x 12), 112228#(<= main_x 11), 112231#(<= main_x 14), 112230#(<= main_x 13), 112233#(<= main_x 16), 112232#(<= main_x 15), 112235#(<= main_x 18), 112234#(<= main_x 17), 112237#(<= main_x 20), 112236#(<= main_x 19), 112239#(<= main_x 22), 112238#(<= main_x 21), 112241#(<= main_x 24), 112240#(<= main_x 23), 112243#(<= main_x 26), 112242#(<= main_x 25), 112245#(<= main_x 28), 112244#(<= main_x 27), 112247#(<= main_x 30), 112246#(<= main_x 29), 112249#(<= main_x 32), 112248#(<= main_x 31), 112251#(<= main_x 34), 112250#(<= main_x 33), 112253#(<= main_x 36), 112252#(<= main_x 35), 112255#(<= main_x 38), 112254#(<= main_x 37), 112257#(<= main_x 40), 112256#(<= main_x 39), 112259#(<= main_x 42), 112258#(<= main_x 41), 112261#(<= main_x 44), 112260#(<= main_x 43), 112263#(<= main_x 46), 112262#(<= main_x 45), 112265#(<= main_x 48), 112264#(<= main_x 47), 112267#(<= main_x 50), 112266#(<= main_x 49), 112269#(<= main_x 52), 112268#(<= main_x 51), 112271#(<= main_x 54), 112270#(<= main_x 53), 112273#(<= main_x 56), 112272#(<= main_x 55), 112275#(<= main_x 58), 112274#(<= main_x 57), 112277#(<= main_x 60), 112276#(<= main_x 59), 112279#(<= main_x 62), 112278#(<= main_x 61), 112281#(<= main_x 64), 112280#(<= main_x 63), 112283#(<= main_x 66), 112282#(<= main_x 65), 112285#(<= main_x 68), 112284#(<= main_x 67), 112287#(<= main_x 70), 112286#(<= main_x 69), 112289#(<= main_x 72), 112288#(<= main_x 71), 112291#(<= main_x 74), 112290#(<= main_x 73), 112293#(<= main_x 76), 112292#(<= main_x 75), 112295#(<= main_x 78), 112294#(<= main_x 77), 112297#(<= main_x 80), 112296#(<= main_x 79), 112299#(<= main_x 82), 112298#(<= main_x 81), 112301#(<= main_x 84), 112300#(<= main_x 83), 112303#(<= main_x 86), 112302#(<= main_x 85), 112305#(<= main_x 88), 112304#(<= main_x 87), 112307#(<= main_x 90), 112306#(<= main_x 89), 112309#(<= main_x 92), 112308#(<= main_x 91), 112311#(<= main_x 94), 112310#(<= main_x 93), 112313#(<= main_x 96), 112312#(<= main_x 95), 112315#(<= main_x 98), 112314#(<= main_x 97), 112317#(<= main_x 100), 112316#(<= main_x 99), 112319#(<= main_x 102), 112318#(<= main_x 101), 112321#(<= main_x 104), 112320#(<= main_x 103), 112323#(<= main_x 106), 112322#(<= main_x 105), 112325#(<= main_x 108), 112324#(<= main_x 107), 112327#(<= main_x 110), 112326#(<= main_x 109), 112329#(<= main_x 112), 112328#(<= main_x 111), 112331#(<= main_x 114), 112330#(<= main_x 113), 112333#(<= main_x 116), 112332#(<= main_x 115), 112335#(<= main_x 118), 112334#(<= main_x 117), 112337#(<= main_x 120), 112336#(<= main_x 119), 112339#(<= main_x 122), 112338#(<= main_x 121), 112341#(<= main_x 124), 112340#(<= main_x 123), 112343#(<= main_x 126), 112342#(<= main_x 125), 112345#(<= main_x 128), 112344#(<= main_x 127), 112347#(<= main_x 130), 112346#(<= main_x 129), 112349#(<= main_x 132), 112348#(<= main_x 131), 112351#(<= main_x 134), 112350#(<= main_x 133), 112353#(<= main_x 136), 112352#(<= main_x 135), 112355#(<= main_x 138), 112354#(<= main_x 137), 112357#(<= main_x 140), 112356#(<= main_x 139), 112359#(<= main_x 142), 112358#(<= main_x 141), 112361#(<= main_x 144), 112360#(<= main_x 143), 112363#(<= main_x 146), 112362#(<= main_x 145), 112365#(<= main_x 148), 112364#(<= main_x 147), 112367#(<= main_x 150), 112366#(<= main_x 149), 112369#(<= main_x 152), 112368#(<= main_x 151), 112371#(<= main_x 154), 112370#(<= main_x 153), 112373#(<= main_x 156), 112372#(<= main_x 155), 112375#(<= main_x 158), 112374#(<= main_x 157), 112377#(<= main_x 160), 112376#(<= main_x 159), 112379#(<= main_x 162), 112378#(<= main_x 161), 112381#(<= main_x 164), 112380#(<= main_x 163), 112383#(<= main_x 166), 112382#(<= main_x 165), 112385#(<= main_x 168), 112384#(<= main_x 167), 112387#(<= main_x 170), 112386#(<= main_x 169), 112389#(<= main_x 172), 112388#(<= main_x 171), 112391#(<= main_x 174), 112390#(<= main_x 173), 112393#(<= main_x 176), 112392#(<= main_x 175), 112395#(<= main_x 178), 112394#(<= main_x 177), 112397#(<= main_x 180), 112396#(<= main_x 179), 112399#(<= main_x 182), 112398#(<= main_x 181), 112401#(<= main_x 184), 112400#(<= main_x 183), 112403#(<= main_x 186), 112402#(<= main_x 185), 112405#(<= main_x 188), 112404#(<= main_x 187), 112407#(<= main_x 190), 112406#(<= main_x 189), 112409#(<= main_x 192), 112408#(<= main_x 191), 112411#(<= main_x 194), 112410#(<= main_x 193), 112413#(<= main_x 196), 112412#(<= main_x 195), 112415#(<= main_x 198), 112414#(<= main_x 197), 112417#(<= main_x 200), 112416#(<= main_x 199), 112419#(<= main_x 202), 112418#(<= main_x 201), 112421#(<= main_x 204), 112420#(<= main_x 203), 112423#(<= main_x 206), 112422#(<= main_x 205), 112424#(<= main_x 207)] [2018-07-23 13:57:10,681 INFO L134 CoverageAnalysis]: Checked inductivity of 21528 backedges. 0 proven. 21528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:10,681 INFO L450 AbstractCegarLoop]: Interpolant automaton has 210 states [2018-07-23 13:57:10,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 210 interpolants. [2018-07-23 13:57:10,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21945, Invalid=21945, Unknown=0, NotChecked=0, Total=43890 [2018-07-23 13:57:10,685 INFO L87 Difference]: Start difference. First operand 211 states and 211 transitions. Second operand 210 states. [2018-07-23 13:57:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:11,476 INFO L93 Difference]: Finished difference Result 214 states and 214 transitions. [2018-07-23 13:57:11,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2018-07-23 13:57:11,476 INFO L78 Accepts]: Start accepts. Automaton has 210 states. Word has length 210 [2018-07-23 13:57:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:11,477 INFO L225 Difference]: With dead ends: 214 [2018-07-23 13:57:11,477 INFO L226 Difference]: Without dead ends: 212 [2018-07-23 13:57:11,478 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21945, Invalid=21945, Unknown=0, NotChecked=0, Total=43890 [2018-07-23 13:57:11,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-07-23 13:57:11,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2018-07-23 13:57:11,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-07-23 13:57:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 212 transitions. [2018-07-23 13:57:11,482 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 212 transitions. Word has length 210 [2018-07-23 13:57:11,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:11,482 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 212 transitions. [2018-07-23 13:57:11,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 210 states. [2018-07-23 13:57:11,482 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 212 transitions. [2018-07-23 13:57:11,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-07-23 13:57:11,483 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:11,483 INFO L357 BasicCegarLoop]: trace histogram [208, 1, 1, 1] [2018-07-23 13:57:11,483 INFO L414 AbstractCegarLoop]: === Iteration 209 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:11,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1843911840, now seen corresponding path program 208 times [2018-07-23 13:57:11,484 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 0 proven. 21736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:12,777 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:12,777 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [210] total 210 [2018-07-23 13:57:12,777 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:12,778 INFO L185 omatonBuilderFactory]: Interpolants [113277#true, 113279#(<= main_x 0), 113278#false, 113281#(<= main_x 2), 113280#(<= main_x 1), 113283#(<= main_x 4), 113282#(<= main_x 3), 113285#(<= main_x 6), 113284#(<= main_x 5), 113287#(<= main_x 8), 113286#(<= main_x 7), 113289#(<= main_x 10), 113288#(<= main_x 9), 113291#(<= main_x 12), 113290#(<= main_x 11), 113293#(<= main_x 14), 113292#(<= main_x 13), 113295#(<= main_x 16), 113294#(<= main_x 15), 113297#(<= main_x 18), 113296#(<= main_x 17), 113299#(<= main_x 20), 113298#(<= main_x 19), 113301#(<= main_x 22), 113300#(<= main_x 21), 113303#(<= main_x 24), 113302#(<= main_x 23), 113305#(<= main_x 26), 113304#(<= main_x 25), 113307#(<= main_x 28), 113306#(<= main_x 27), 113309#(<= main_x 30), 113308#(<= main_x 29), 113311#(<= main_x 32), 113310#(<= main_x 31), 113313#(<= main_x 34), 113312#(<= main_x 33), 113315#(<= main_x 36), 113314#(<= main_x 35), 113317#(<= main_x 38), 113316#(<= main_x 37), 113319#(<= main_x 40), 113318#(<= main_x 39), 113321#(<= main_x 42), 113320#(<= main_x 41), 113323#(<= main_x 44), 113322#(<= main_x 43), 113325#(<= main_x 46), 113324#(<= main_x 45), 113327#(<= main_x 48), 113326#(<= main_x 47), 113329#(<= main_x 50), 113328#(<= main_x 49), 113331#(<= main_x 52), 113330#(<= main_x 51), 113333#(<= main_x 54), 113332#(<= main_x 53), 113335#(<= main_x 56), 113334#(<= main_x 55), 113337#(<= main_x 58), 113336#(<= main_x 57), 113339#(<= main_x 60), 113338#(<= main_x 59), 113341#(<= main_x 62), 113340#(<= main_x 61), 113343#(<= main_x 64), 113342#(<= main_x 63), 113345#(<= main_x 66), 113344#(<= main_x 65), 113347#(<= main_x 68), 113346#(<= main_x 67), 113349#(<= main_x 70), 113348#(<= main_x 69), 113351#(<= main_x 72), 113350#(<= main_x 71), 113353#(<= main_x 74), 113352#(<= main_x 73), 113355#(<= main_x 76), 113354#(<= main_x 75), 113357#(<= main_x 78), 113356#(<= main_x 77), 113359#(<= main_x 80), 113358#(<= main_x 79), 113361#(<= main_x 82), 113360#(<= main_x 81), 113363#(<= main_x 84), 113362#(<= main_x 83), 113365#(<= main_x 86), 113364#(<= main_x 85), 113367#(<= main_x 88), 113366#(<= main_x 87), 113369#(<= main_x 90), 113368#(<= main_x 89), 113371#(<= main_x 92), 113370#(<= main_x 91), 113373#(<= main_x 94), 113372#(<= main_x 93), 113375#(<= main_x 96), 113374#(<= main_x 95), 113377#(<= main_x 98), 113376#(<= main_x 97), 113379#(<= main_x 100), 113378#(<= main_x 99), 113381#(<= main_x 102), 113380#(<= main_x 101), 113383#(<= main_x 104), 113382#(<= main_x 103), 113385#(<= main_x 106), 113384#(<= main_x 105), 113387#(<= main_x 108), 113386#(<= main_x 107), 113389#(<= main_x 110), 113388#(<= main_x 109), 113391#(<= main_x 112), 113390#(<= main_x 111), 113393#(<= main_x 114), 113392#(<= main_x 113), 113395#(<= main_x 116), 113394#(<= main_x 115), 113397#(<= main_x 118), 113396#(<= main_x 117), 113399#(<= main_x 120), 113398#(<= main_x 119), 113401#(<= main_x 122), 113400#(<= main_x 121), 113403#(<= main_x 124), 113402#(<= main_x 123), 113405#(<= main_x 126), 113404#(<= main_x 125), 113407#(<= main_x 128), 113406#(<= main_x 127), 113409#(<= main_x 130), 113408#(<= main_x 129), 113411#(<= main_x 132), 113410#(<= main_x 131), 113413#(<= main_x 134), 113412#(<= main_x 133), 113415#(<= main_x 136), 113414#(<= main_x 135), 113417#(<= main_x 138), 113416#(<= main_x 137), 113419#(<= main_x 140), 113418#(<= main_x 139), 113421#(<= main_x 142), 113420#(<= main_x 141), 113423#(<= main_x 144), 113422#(<= main_x 143), 113425#(<= main_x 146), 113424#(<= main_x 145), 113427#(<= main_x 148), 113426#(<= main_x 147), 113429#(<= main_x 150), 113428#(<= main_x 149), 113431#(<= main_x 152), 113430#(<= main_x 151), 113433#(<= main_x 154), 113432#(<= main_x 153), 113435#(<= main_x 156), 113434#(<= main_x 155), 113437#(<= main_x 158), 113436#(<= main_x 157), 113439#(<= main_x 160), 113438#(<= main_x 159), 113441#(<= main_x 162), 113440#(<= main_x 161), 113443#(<= main_x 164), 113442#(<= main_x 163), 113445#(<= main_x 166), 113444#(<= main_x 165), 113447#(<= main_x 168), 113446#(<= main_x 167), 113449#(<= main_x 170), 113448#(<= main_x 169), 113451#(<= main_x 172), 113450#(<= main_x 171), 113453#(<= main_x 174), 113452#(<= main_x 173), 113455#(<= main_x 176), 113454#(<= main_x 175), 113457#(<= main_x 178), 113456#(<= main_x 177), 113459#(<= main_x 180), 113458#(<= main_x 179), 113461#(<= main_x 182), 113460#(<= main_x 181), 113463#(<= main_x 184), 113462#(<= main_x 183), 113465#(<= main_x 186), 113464#(<= main_x 185), 113467#(<= main_x 188), 113466#(<= main_x 187), 113469#(<= main_x 190), 113468#(<= main_x 189), 113471#(<= main_x 192), 113470#(<= main_x 191), 113473#(<= main_x 194), 113472#(<= main_x 193), 113475#(<= main_x 196), 113474#(<= main_x 195), 113477#(<= main_x 198), 113476#(<= main_x 197), 113479#(<= main_x 200), 113478#(<= main_x 199), 113481#(<= main_x 202), 113480#(<= main_x 201), 113483#(<= main_x 204), 113482#(<= main_x 203), 113485#(<= main_x 206), 113484#(<= main_x 205), 113487#(<= main_x 208), 113486#(<= main_x 207)] [2018-07-23 13:57:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 0 proven. 21736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:12,779 INFO L450 AbstractCegarLoop]: Interpolant automaton has 211 states [2018-07-23 13:57:12,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2018-07-23 13:57:12,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22155, Invalid=22155, Unknown=0, NotChecked=0, Total=44310 [2018-07-23 13:57:12,782 INFO L87 Difference]: Start difference. First operand 212 states and 212 transitions. Second operand 211 states. [2018-07-23 13:57:13,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:13,344 INFO L93 Difference]: Finished difference Result 215 states and 215 transitions. [2018-07-23 13:57:13,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2018-07-23 13:57:13,344 INFO L78 Accepts]: Start accepts. Automaton has 211 states. Word has length 211 [2018-07-23 13:57:13,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:13,345 INFO L225 Difference]: With dead ends: 215 [2018-07-23 13:57:13,345 INFO L226 Difference]: Without dead ends: 213 [2018-07-23 13:57:13,346 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22155, Invalid=22155, Unknown=0, NotChecked=0, Total=44310 [2018-07-23 13:57:13,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-07-23 13:57:13,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2018-07-23 13:57:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-07-23 13:57:13,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 213 transitions. [2018-07-23 13:57:13,348 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 213 transitions. Word has length 211 [2018-07-23 13:57:13,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:13,349 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 213 transitions. [2018-07-23 13:57:13,349 INFO L472 AbstractCegarLoop]: Interpolant automaton has 211 states. [2018-07-23 13:57:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 213 transitions. [2018-07-23 13:57:13,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-07-23 13:57:13,349 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:13,349 INFO L357 BasicCegarLoop]: trace histogram [209, 1, 1, 1] [2018-07-23 13:57:13,349 INFO L414 AbstractCegarLoop]: === Iteration 210 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:13,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1326696058, now seen corresponding path program 209 times [2018-07-23 13:57:13,350 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 0 proven. 21945 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:14,492 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:14,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [211] total 211 [2018-07-23 13:57:14,493 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:14,493 INFO L185 omatonBuilderFactory]: Interpolants [114345#false, 114344#true, 114347#(<= main_x 1), 114346#(<= main_x 0), 114349#(<= main_x 3), 114348#(<= main_x 2), 114351#(<= main_x 5), 114350#(<= main_x 4), 114353#(<= main_x 7), 114352#(<= main_x 6), 114355#(<= main_x 9), 114354#(<= main_x 8), 114357#(<= main_x 11), 114356#(<= main_x 10), 114359#(<= main_x 13), 114358#(<= main_x 12), 114361#(<= main_x 15), 114360#(<= main_x 14), 114363#(<= main_x 17), 114362#(<= main_x 16), 114365#(<= main_x 19), 114364#(<= main_x 18), 114367#(<= main_x 21), 114366#(<= main_x 20), 114369#(<= main_x 23), 114368#(<= main_x 22), 114371#(<= main_x 25), 114370#(<= main_x 24), 114373#(<= main_x 27), 114372#(<= main_x 26), 114375#(<= main_x 29), 114374#(<= main_x 28), 114377#(<= main_x 31), 114376#(<= main_x 30), 114379#(<= main_x 33), 114378#(<= main_x 32), 114381#(<= main_x 35), 114380#(<= main_x 34), 114383#(<= main_x 37), 114382#(<= main_x 36), 114385#(<= main_x 39), 114384#(<= main_x 38), 114387#(<= main_x 41), 114386#(<= main_x 40), 114389#(<= main_x 43), 114388#(<= main_x 42), 114391#(<= main_x 45), 114390#(<= main_x 44), 114393#(<= main_x 47), 114392#(<= main_x 46), 114395#(<= main_x 49), 114394#(<= main_x 48), 114397#(<= main_x 51), 114396#(<= main_x 50), 114399#(<= main_x 53), 114398#(<= main_x 52), 114401#(<= main_x 55), 114400#(<= main_x 54), 114403#(<= main_x 57), 114402#(<= main_x 56), 114405#(<= main_x 59), 114404#(<= main_x 58), 114407#(<= main_x 61), 114406#(<= main_x 60), 114409#(<= main_x 63), 114408#(<= main_x 62), 114411#(<= main_x 65), 114410#(<= main_x 64), 114413#(<= main_x 67), 114412#(<= main_x 66), 114415#(<= main_x 69), 114414#(<= main_x 68), 114417#(<= main_x 71), 114416#(<= main_x 70), 114419#(<= main_x 73), 114418#(<= main_x 72), 114421#(<= main_x 75), 114420#(<= main_x 74), 114423#(<= main_x 77), 114422#(<= main_x 76), 114425#(<= main_x 79), 114424#(<= main_x 78), 114427#(<= main_x 81), 114426#(<= main_x 80), 114429#(<= main_x 83), 114428#(<= main_x 82), 114431#(<= main_x 85), 114430#(<= main_x 84), 114433#(<= main_x 87), 114432#(<= main_x 86), 114435#(<= main_x 89), 114434#(<= main_x 88), 114437#(<= main_x 91), 114436#(<= main_x 90), 114439#(<= main_x 93), 114438#(<= main_x 92), 114441#(<= main_x 95), 114440#(<= main_x 94), 114443#(<= main_x 97), 114442#(<= main_x 96), 114445#(<= main_x 99), 114444#(<= main_x 98), 114447#(<= main_x 101), 114446#(<= main_x 100), 114449#(<= main_x 103), 114448#(<= main_x 102), 114451#(<= main_x 105), 114450#(<= main_x 104), 114453#(<= main_x 107), 114452#(<= main_x 106), 114455#(<= main_x 109), 114454#(<= main_x 108), 114457#(<= main_x 111), 114456#(<= main_x 110), 114459#(<= main_x 113), 114458#(<= main_x 112), 114461#(<= main_x 115), 114460#(<= main_x 114), 114463#(<= main_x 117), 114462#(<= main_x 116), 114465#(<= main_x 119), 114464#(<= main_x 118), 114467#(<= main_x 121), 114466#(<= main_x 120), 114469#(<= main_x 123), 114468#(<= main_x 122), 114471#(<= main_x 125), 114470#(<= main_x 124), 114473#(<= main_x 127), 114472#(<= main_x 126), 114475#(<= main_x 129), 114474#(<= main_x 128), 114477#(<= main_x 131), 114476#(<= main_x 130), 114479#(<= main_x 133), 114478#(<= main_x 132), 114481#(<= main_x 135), 114480#(<= main_x 134), 114483#(<= main_x 137), 114482#(<= main_x 136), 114485#(<= main_x 139), 114484#(<= main_x 138), 114487#(<= main_x 141), 114486#(<= main_x 140), 114489#(<= main_x 143), 114488#(<= main_x 142), 114491#(<= main_x 145), 114490#(<= main_x 144), 114493#(<= main_x 147), 114492#(<= main_x 146), 114495#(<= main_x 149), 114494#(<= main_x 148), 114497#(<= main_x 151), 114496#(<= main_x 150), 114499#(<= main_x 153), 114498#(<= main_x 152), 114501#(<= main_x 155), 114500#(<= main_x 154), 114503#(<= main_x 157), 114502#(<= main_x 156), 114505#(<= main_x 159), 114504#(<= main_x 158), 114507#(<= main_x 161), 114506#(<= main_x 160), 114509#(<= main_x 163), 114508#(<= main_x 162), 114511#(<= main_x 165), 114510#(<= main_x 164), 114513#(<= main_x 167), 114512#(<= main_x 166), 114515#(<= main_x 169), 114514#(<= main_x 168), 114517#(<= main_x 171), 114516#(<= main_x 170), 114519#(<= main_x 173), 114518#(<= main_x 172), 114521#(<= main_x 175), 114520#(<= main_x 174), 114523#(<= main_x 177), 114522#(<= main_x 176), 114525#(<= main_x 179), 114524#(<= main_x 178), 114527#(<= main_x 181), 114526#(<= main_x 180), 114529#(<= main_x 183), 114528#(<= main_x 182), 114531#(<= main_x 185), 114530#(<= main_x 184), 114533#(<= main_x 187), 114532#(<= main_x 186), 114535#(<= main_x 189), 114534#(<= main_x 188), 114537#(<= main_x 191), 114536#(<= main_x 190), 114539#(<= main_x 193), 114538#(<= main_x 192), 114541#(<= main_x 195), 114540#(<= main_x 194), 114543#(<= main_x 197), 114542#(<= main_x 196), 114545#(<= main_x 199), 114544#(<= main_x 198), 114547#(<= main_x 201), 114546#(<= main_x 200), 114549#(<= main_x 203), 114548#(<= main_x 202), 114551#(<= main_x 205), 114550#(<= main_x 204), 114553#(<= main_x 207), 114552#(<= main_x 206), 114555#(<= main_x 209), 114554#(<= main_x 208)] [2018-07-23 13:57:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 21945 backedges. 0 proven. 21945 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:14,495 INFO L450 AbstractCegarLoop]: Interpolant automaton has 212 states [2018-07-23 13:57:14,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2018-07-23 13:57:14,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22366, Invalid=22366, Unknown=0, NotChecked=0, Total=44732 [2018-07-23 13:57:14,499 INFO L87 Difference]: Start difference. First operand 213 states and 213 transitions. Second operand 212 states. [2018-07-23 13:57:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:15,112 INFO L93 Difference]: Finished difference Result 216 states and 216 transitions. [2018-07-23 13:57:15,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2018-07-23 13:57:15,112 INFO L78 Accepts]: Start accepts. Automaton has 212 states. Word has length 212 [2018-07-23 13:57:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:15,113 INFO L225 Difference]: With dead ends: 216 [2018-07-23 13:57:15,113 INFO L226 Difference]: Without dead ends: 214 [2018-07-23 13:57:15,114 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22366, Invalid=22366, Unknown=0, NotChecked=0, Total=44732 [2018-07-23 13:57:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-07-23 13:57:15,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-07-23 13:57:15,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-07-23 13:57:15,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 214 transitions. [2018-07-23 13:57:15,117 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 214 transitions. Word has length 212 [2018-07-23 13:57:15,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:15,117 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 214 transitions. [2018-07-23 13:57:15,117 INFO L472 AbstractCegarLoop]: Interpolant automaton has 212 states. [2018-07-23 13:57:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 214 transitions. [2018-07-23 13:57:15,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-07-23 13:57:15,118 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:15,118 INFO L357 BasicCegarLoop]: trace histogram [210, 1, 1, 1] [2018-07-23 13:57:15,118 INFO L414 AbstractCegarLoop]: === Iteration 211 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:15,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1822091296, now seen corresponding path program 210 times [2018-07-23 13:57:15,118 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 22155 backedges. 0 proven. 22155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:16,318 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:16,318 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [212] total 212 [2018-07-23 13:57:16,318 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:16,318 INFO L185 omatonBuilderFactory]: Interpolants [115417#false, 115416#true, 115419#(<= main_x 1), 115418#(<= main_x 0), 115421#(<= main_x 3), 115420#(<= main_x 2), 115423#(<= main_x 5), 115422#(<= main_x 4), 115425#(<= main_x 7), 115424#(<= main_x 6), 115427#(<= main_x 9), 115426#(<= main_x 8), 115429#(<= main_x 11), 115428#(<= main_x 10), 115431#(<= main_x 13), 115430#(<= main_x 12), 115433#(<= main_x 15), 115432#(<= main_x 14), 115435#(<= main_x 17), 115434#(<= main_x 16), 115437#(<= main_x 19), 115436#(<= main_x 18), 115439#(<= main_x 21), 115438#(<= main_x 20), 115441#(<= main_x 23), 115440#(<= main_x 22), 115443#(<= main_x 25), 115442#(<= main_x 24), 115445#(<= main_x 27), 115444#(<= main_x 26), 115447#(<= main_x 29), 115446#(<= main_x 28), 115449#(<= main_x 31), 115448#(<= main_x 30), 115451#(<= main_x 33), 115450#(<= main_x 32), 115453#(<= main_x 35), 115452#(<= main_x 34), 115455#(<= main_x 37), 115454#(<= main_x 36), 115457#(<= main_x 39), 115456#(<= main_x 38), 115459#(<= main_x 41), 115458#(<= main_x 40), 115461#(<= main_x 43), 115460#(<= main_x 42), 115463#(<= main_x 45), 115462#(<= main_x 44), 115465#(<= main_x 47), 115464#(<= main_x 46), 115467#(<= main_x 49), 115466#(<= main_x 48), 115469#(<= main_x 51), 115468#(<= main_x 50), 115471#(<= main_x 53), 115470#(<= main_x 52), 115473#(<= main_x 55), 115472#(<= main_x 54), 115475#(<= main_x 57), 115474#(<= main_x 56), 115477#(<= main_x 59), 115476#(<= main_x 58), 115479#(<= main_x 61), 115478#(<= main_x 60), 115481#(<= main_x 63), 115480#(<= main_x 62), 115483#(<= main_x 65), 115482#(<= main_x 64), 115485#(<= main_x 67), 115484#(<= main_x 66), 115487#(<= main_x 69), 115486#(<= main_x 68), 115489#(<= main_x 71), 115488#(<= main_x 70), 115491#(<= main_x 73), 115490#(<= main_x 72), 115493#(<= main_x 75), 115492#(<= main_x 74), 115495#(<= main_x 77), 115494#(<= main_x 76), 115497#(<= main_x 79), 115496#(<= main_x 78), 115499#(<= main_x 81), 115498#(<= main_x 80), 115501#(<= main_x 83), 115500#(<= main_x 82), 115503#(<= main_x 85), 115502#(<= main_x 84), 115505#(<= main_x 87), 115504#(<= main_x 86), 115507#(<= main_x 89), 115506#(<= main_x 88), 115509#(<= main_x 91), 115508#(<= main_x 90), 115511#(<= main_x 93), 115510#(<= main_x 92), 115513#(<= main_x 95), 115512#(<= main_x 94), 115515#(<= main_x 97), 115514#(<= main_x 96), 115517#(<= main_x 99), 115516#(<= main_x 98), 115519#(<= main_x 101), 115518#(<= main_x 100), 115521#(<= main_x 103), 115520#(<= main_x 102), 115523#(<= main_x 105), 115522#(<= main_x 104), 115525#(<= main_x 107), 115524#(<= main_x 106), 115527#(<= main_x 109), 115526#(<= main_x 108), 115529#(<= main_x 111), 115528#(<= main_x 110), 115531#(<= main_x 113), 115530#(<= main_x 112), 115533#(<= main_x 115), 115532#(<= main_x 114), 115535#(<= main_x 117), 115534#(<= main_x 116), 115537#(<= main_x 119), 115536#(<= main_x 118), 115539#(<= main_x 121), 115538#(<= main_x 120), 115541#(<= main_x 123), 115540#(<= main_x 122), 115543#(<= main_x 125), 115542#(<= main_x 124), 115545#(<= main_x 127), 115544#(<= main_x 126), 115547#(<= main_x 129), 115546#(<= main_x 128), 115549#(<= main_x 131), 115548#(<= main_x 130), 115551#(<= main_x 133), 115550#(<= main_x 132), 115553#(<= main_x 135), 115552#(<= main_x 134), 115555#(<= main_x 137), 115554#(<= main_x 136), 115557#(<= main_x 139), 115556#(<= main_x 138), 115559#(<= main_x 141), 115558#(<= main_x 140), 115561#(<= main_x 143), 115560#(<= main_x 142), 115563#(<= main_x 145), 115562#(<= main_x 144), 115565#(<= main_x 147), 115564#(<= main_x 146), 115567#(<= main_x 149), 115566#(<= main_x 148), 115569#(<= main_x 151), 115568#(<= main_x 150), 115571#(<= main_x 153), 115570#(<= main_x 152), 115573#(<= main_x 155), 115572#(<= main_x 154), 115575#(<= main_x 157), 115574#(<= main_x 156), 115577#(<= main_x 159), 115576#(<= main_x 158), 115579#(<= main_x 161), 115578#(<= main_x 160), 115581#(<= main_x 163), 115580#(<= main_x 162), 115583#(<= main_x 165), 115582#(<= main_x 164), 115585#(<= main_x 167), 115584#(<= main_x 166), 115587#(<= main_x 169), 115586#(<= main_x 168), 115589#(<= main_x 171), 115588#(<= main_x 170), 115591#(<= main_x 173), 115590#(<= main_x 172), 115593#(<= main_x 175), 115592#(<= main_x 174), 115595#(<= main_x 177), 115594#(<= main_x 176), 115597#(<= main_x 179), 115596#(<= main_x 178), 115599#(<= main_x 181), 115598#(<= main_x 180), 115601#(<= main_x 183), 115600#(<= main_x 182), 115603#(<= main_x 185), 115602#(<= main_x 184), 115605#(<= main_x 187), 115604#(<= main_x 186), 115607#(<= main_x 189), 115606#(<= main_x 188), 115609#(<= main_x 191), 115608#(<= main_x 190), 115611#(<= main_x 193), 115610#(<= main_x 192), 115613#(<= main_x 195), 115612#(<= main_x 194), 115615#(<= main_x 197), 115614#(<= main_x 196), 115617#(<= main_x 199), 115616#(<= main_x 198), 115619#(<= main_x 201), 115618#(<= main_x 200), 115621#(<= main_x 203), 115620#(<= main_x 202), 115623#(<= main_x 205), 115622#(<= main_x 204), 115625#(<= main_x 207), 115624#(<= main_x 206), 115627#(<= main_x 209), 115626#(<= main_x 208), 115628#(<= main_x 210)] [2018-07-23 13:57:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 22155 backedges. 0 proven. 22155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:16,319 INFO L450 AbstractCegarLoop]: Interpolant automaton has 213 states [2018-07-23 13:57:16,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2018-07-23 13:57:16,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2018-07-23 13:57:16,322 INFO L87 Difference]: Start difference. First operand 214 states and 214 transitions. Second operand 213 states. [2018-07-23 13:57:17,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:17,238 INFO L93 Difference]: Finished difference Result 217 states and 217 transitions. [2018-07-23 13:57:17,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 213 states. [2018-07-23 13:57:17,238 INFO L78 Accepts]: Start accepts. Automaton has 213 states. Word has length 213 [2018-07-23 13:57:17,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:17,239 INFO L225 Difference]: With dead ends: 217 [2018-07-23 13:57:17,239 INFO L226 Difference]: Without dead ends: 215 [2018-07-23 13:57:17,240 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2018-07-23 13:57:17,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-07-23 13:57:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2018-07-23 13:57:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-07-23 13:57:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 215 transitions. [2018-07-23 13:57:17,243 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 215 transitions. Word has length 213 [2018-07-23 13:57:17,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:17,243 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 215 transitions. [2018-07-23 13:57:17,243 INFO L472 AbstractCegarLoop]: Interpolant automaton has 213 states. [2018-07-23 13:57:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 215 transitions. [2018-07-23 13:57:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-07-23 13:57:17,243 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:17,243 INFO L357 BasicCegarLoop]: trace histogram [211, 1, 1, 1] [2018-07-23 13:57:17,244 INFO L414 AbstractCegarLoop]: === Iteration 212 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:17,244 INFO L82 PathProgramCache]: Analyzing trace with hash 650251462, now seen corresponding path program 211 times [2018-07-23 13:57:17,244 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 22366 backedges. 0 proven. 22366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:18,398 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:18,398 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [213] total 213 [2018-07-23 13:57:18,398 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:18,398 INFO L185 omatonBuilderFactory]: Interpolants [116493#true, 116495#(<= main_x 0), 116494#false, 116497#(<= main_x 2), 116496#(<= main_x 1), 116499#(<= main_x 4), 116498#(<= main_x 3), 116501#(<= main_x 6), 116500#(<= main_x 5), 116503#(<= main_x 8), 116502#(<= main_x 7), 116505#(<= main_x 10), 116504#(<= main_x 9), 116507#(<= main_x 12), 116506#(<= main_x 11), 116509#(<= main_x 14), 116508#(<= main_x 13), 116511#(<= main_x 16), 116510#(<= main_x 15), 116513#(<= main_x 18), 116512#(<= main_x 17), 116515#(<= main_x 20), 116514#(<= main_x 19), 116517#(<= main_x 22), 116516#(<= main_x 21), 116519#(<= main_x 24), 116518#(<= main_x 23), 116521#(<= main_x 26), 116520#(<= main_x 25), 116523#(<= main_x 28), 116522#(<= main_x 27), 116525#(<= main_x 30), 116524#(<= main_x 29), 116527#(<= main_x 32), 116526#(<= main_x 31), 116529#(<= main_x 34), 116528#(<= main_x 33), 116531#(<= main_x 36), 116530#(<= main_x 35), 116533#(<= main_x 38), 116532#(<= main_x 37), 116535#(<= main_x 40), 116534#(<= main_x 39), 116537#(<= main_x 42), 116536#(<= main_x 41), 116539#(<= main_x 44), 116538#(<= main_x 43), 116541#(<= main_x 46), 116540#(<= main_x 45), 116543#(<= main_x 48), 116542#(<= main_x 47), 116545#(<= main_x 50), 116544#(<= main_x 49), 116547#(<= main_x 52), 116546#(<= main_x 51), 116549#(<= main_x 54), 116548#(<= main_x 53), 116551#(<= main_x 56), 116550#(<= main_x 55), 116553#(<= main_x 58), 116552#(<= main_x 57), 116555#(<= main_x 60), 116554#(<= main_x 59), 116557#(<= main_x 62), 116556#(<= main_x 61), 116559#(<= main_x 64), 116558#(<= main_x 63), 116561#(<= main_x 66), 116560#(<= main_x 65), 116563#(<= main_x 68), 116562#(<= main_x 67), 116565#(<= main_x 70), 116564#(<= main_x 69), 116567#(<= main_x 72), 116566#(<= main_x 71), 116569#(<= main_x 74), 116568#(<= main_x 73), 116571#(<= main_x 76), 116570#(<= main_x 75), 116573#(<= main_x 78), 116572#(<= main_x 77), 116575#(<= main_x 80), 116574#(<= main_x 79), 116577#(<= main_x 82), 116576#(<= main_x 81), 116579#(<= main_x 84), 116578#(<= main_x 83), 116581#(<= main_x 86), 116580#(<= main_x 85), 116583#(<= main_x 88), 116582#(<= main_x 87), 116585#(<= main_x 90), 116584#(<= main_x 89), 116587#(<= main_x 92), 116586#(<= main_x 91), 116589#(<= main_x 94), 116588#(<= main_x 93), 116591#(<= main_x 96), 116590#(<= main_x 95), 116593#(<= main_x 98), 116592#(<= main_x 97), 116595#(<= main_x 100), 116594#(<= main_x 99), 116597#(<= main_x 102), 116596#(<= main_x 101), 116599#(<= main_x 104), 116598#(<= main_x 103), 116601#(<= main_x 106), 116600#(<= main_x 105), 116603#(<= main_x 108), 116602#(<= main_x 107), 116605#(<= main_x 110), 116604#(<= main_x 109), 116607#(<= main_x 112), 116606#(<= main_x 111), 116609#(<= main_x 114), 116608#(<= main_x 113), 116611#(<= main_x 116), 116610#(<= main_x 115), 116613#(<= main_x 118), 116612#(<= main_x 117), 116615#(<= main_x 120), 116614#(<= main_x 119), 116617#(<= main_x 122), 116616#(<= main_x 121), 116619#(<= main_x 124), 116618#(<= main_x 123), 116621#(<= main_x 126), 116620#(<= main_x 125), 116623#(<= main_x 128), 116622#(<= main_x 127), 116625#(<= main_x 130), 116624#(<= main_x 129), 116627#(<= main_x 132), 116626#(<= main_x 131), 116629#(<= main_x 134), 116628#(<= main_x 133), 116631#(<= main_x 136), 116630#(<= main_x 135), 116633#(<= main_x 138), 116632#(<= main_x 137), 116635#(<= main_x 140), 116634#(<= main_x 139), 116637#(<= main_x 142), 116636#(<= main_x 141), 116639#(<= main_x 144), 116638#(<= main_x 143), 116641#(<= main_x 146), 116640#(<= main_x 145), 116643#(<= main_x 148), 116642#(<= main_x 147), 116645#(<= main_x 150), 116644#(<= main_x 149), 116647#(<= main_x 152), 116646#(<= main_x 151), 116649#(<= main_x 154), 116648#(<= main_x 153), 116651#(<= main_x 156), 116650#(<= main_x 155), 116653#(<= main_x 158), 116652#(<= main_x 157), 116655#(<= main_x 160), 116654#(<= main_x 159), 116657#(<= main_x 162), 116656#(<= main_x 161), 116659#(<= main_x 164), 116658#(<= main_x 163), 116661#(<= main_x 166), 116660#(<= main_x 165), 116663#(<= main_x 168), 116662#(<= main_x 167), 116665#(<= main_x 170), 116664#(<= main_x 169), 116667#(<= main_x 172), 116666#(<= main_x 171), 116669#(<= main_x 174), 116668#(<= main_x 173), 116671#(<= main_x 176), 116670#(<= main_x 175), 116673#(<= main_x 178), 116672#(<= main_x 177), 116675#(<= main_x 180), 116674#(<= main_x 179), 116677#(<= main_x 182), 116676#(<= main_x 181), 116679#(<= main_x 184), 116678#(<= main_x 183), 116681#(<= main_x 186), 116680#(<= main_x 185), 116683#(<= main_x 188), 116682#(<= main_x 187), 116685#(<= main_x 190), 116684#(<= main_x 189), 116687#(<= main_x 192), 116686#(<= main_x 191), 116689#(<= main_x 194), 116688#(<= main_x 193), 116691#(<= main_x 196), 116690#(<= main_x 195), 116693#(<= main_x 198), 116692#(<= main_x 197), 116695#(<= main_x 200), 116694#(<= main_x 199), 116697#(<= main_x 202), 116696#(<= main_x 201), 116699#(<= main_x 204), 116698#(<= main_x 203), 116701#(<= main_x 206), 116700#(<= main_x 205), 116703#(<= main_x 208), 116702#(<= main_x 207), 116705#(<= main_x 210), 116704#(<= main_x 209), 116706#(<= main_x 211)] [2018-07-23 13:57:18,399 INFO L134 CoverageAnalysis]: Checked inductivity of 22366 backedges. 0 proven. 22366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:18,399 INFO L450 AbstractCegarLoop]: Interpolant automaton has 214 states [2018-07-23 13:57:18,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 214 interpolants. [2018-07-23 13:57:18,403 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22791, Invalid=22791, Unknown=0, NotChecked=0, Total=45582 [2018-07-23 13:57:18,403 INFO L87 Difference]: Start difference. First operand 215 states and 215 transitions. Second operand 214 states. [2018-07-23 13:57:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:19,703 INFO L93 Difference]: Finished difference Result 218 states and 218 transitions. [2018-07-23 13:57:19,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2018-07-23 13:57:19,703 INFO L78 Accepts]: Start accepts. Automaton has 214 states. Word has length 214 [2018-07-23 13:57:19,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:19,704 INFO L225 Difference]: With dead ends: 218 [2018-07-23 13:57:19,704 INFO L226 Difference]: Without dead ends: 216 [2018-07-23 13:57:19,705 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22791, Invalid=22791, Unknown=0, NotChecked=0, Total=45582 [2018-07-23 13:57:19,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-07-23 13:57:19,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2018-07-23 13:57:19,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-07-23 13:57:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2018-07-23 13:57:19,708 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 214 [2018-07-23 13:57:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:19,708 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2018-07-23 13:57:19,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 214 states. [2018-07-23 13:57:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2018-07-23 13:57:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-07-23 13:57:19,709 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:19,709 INFO L357 BasicCegarLoop]: trace histogram [212, 1, 1, 1] [2018-07-23 13:57:19,709 INFO L414 AbstractCegarLoop]: === Iteration 213 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:19,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1317045024, now seen corresponding path program 212 times [2018-07-23 13:57:19,709 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 22578 backedges. 0 proven. 22578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:20,947 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:20,947 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [214] total 214 [2018-07-23 13:57:20,948 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:20,948 INFO L185 omatonBuilderFactory]: Interpolants [117761#(<= main_x 184), 117760#(<= main_x 183), 117763#(<= main_x 186), 117762#(<= main_x 185), 117765#(<= main_x 188), 117764#(<= main_x 187), 117767#(<= main_x 190), 117766#(<= main_x 189), 117769#(<= main_x 192), 117768#(<= main_x 191), 117771#(<= main_x 194), 117770#(<= main_x 193), 117773#(<= main_x 196), 117772#(<= main_x 195), 117775#(<= main_x 198), 117774#(<= main_x 197), 117777#(<= main_x 200), 117776#(<= main_x 199), 117779#(<= main_x 202), 117778#(<= main_x 201), 117781#(<= main_x 204), 117780#(<= main_x 203), 117783#(<= main_x 206), 117782#(<= main_x 205), 117785#(<= main_x 208), 117784#(<= main_x 207), 117787#(<= main_x 210), 117786#(<= main_x 209), 117789#(<= main_x 212), 117788#(<= main_x 211), 117575#true, 117577#(<= main_x 0), 117576#false, 117579#(<= main_x 2), 117578#(<= main_x 1), 117581#(<= main_x 4), 117580#(<= main_x 3), 117583#(<= main_x 6), 117582#(<= main_x 5), 117585#(<= main_x 8), 117584#(<= main_x 7), 117587#(<= main_x 10), 117586#(<= main_x 9), 117589#(<= main_x 12), 117588#(<= main_x 11), 117591#(<= main_x 14), 117590#(<= main_x 13), 117593#(<= main_x 16), 117592#(<= main_x 15), 117595#(<= main_x 18), 117594#(<= main_x 17), 117597#(<= main_x 20), 117596#(<= main_x 19), 117599#(<= main_x 22), 117598#(<= main_x 21), 117601#(<= main_x 24), 117600#(<= main_x 23), 117603#(<= main_x 26), 117602#(<= main_x 25), 117605#(<= main_x 28), 117604#(<= main_x 27), 117607#(<= main_x 30), 117606#(<= main_x 29), 117609#(<= main_x 32), 117608#(<= main_x 31), 117611#(<= main_x 34), 117610#(<= main_x 33), 117613#(<= main_x 36), 117612#(<= main_x 35), 117615#(<= main_x 38), 117614#(<= main_x 37), 117617#(<= main_x 40), 117616#(<= main_x 39), 117619#(<= main_x 42), 117618#(<= main_x 41), 117621#(<= main_x 44), 117620#(<= main_x 43), 117623#(<= main_x 46), 117622#(<= main_x 45), 117625#(<= main_x 48), 117624#(<= main_x 47), 117627#(<= main_x 50), 117626#(<= main_x 49), 117629#(<= main_x 52), 117628#(<= main_x 51), 117631#(<= main_x 54), 117630#(<= main_x 53), 117633#(<= main_x 56), 117632#(<= main_x 55), 117635#(<= main_x 58), 117634#(<= main_x 57), 117637#(<= main_x 60), 117636#(<= main_x 59), 117639#(<= main_x 62), 117638#(<= main_x 61), 117641#(<= main_x 64), 117640#(<= main_x 63), 117643#(<= main_x 66), 117642#(<= main_x 65), 117645#(<= main_x 68), 117644#(<= main_x 67), 117647#(<= main_x 70), 117646#(<= main_x 69), 117649#(<= main_x 72), 117648#(<= main_x 71), 117651#(<= main_x 74), 117650#(<= main_x 73), 117653#(<= main_x 76), 117652#(<= main_x 75), 117655#(<= main_x 78), 117654#(<= main_x 77), 117657#(<= main_x 80), 117656#(<= main_x 79), 117659#(<= main_x 82), 117658#(<= main_x 81), 117661#(<= main_x 84), 117660#(<= main_x 83), 117663#(<= main_x 86), 117662#(<= main_x 85), 117665#(<= main_x 88), 117664#(<= main_x 87), 117667#(<= main_x 90), 117666#(<= main_x 89), 117669#(<= main_x 92), 117668#(<= main_x 91), 117671#(<= main_x 94), 117670#(<= main_x 93), 117673#(<= main_x 96), 117672#(<= main_x 95), 117675#(<= main_x 98), 117674#(<= main_x 97), 117677#(<= main_x 100), 117676#(<= main_x 99), 117679#(<= main_x 102), 117678#(<= main_x 101), 117681#(<= main_x 104), 117680#(<= main_x 103), 117683#(<= main_x 106), 117682#(<= main_x 105), 117685#(<= main_x 108), 117684#(<= main_x 107), 117687#(<= main_x 110), 117686#(<= main_x 109), 117689#(<= main_x 112), 117688#(<= main_x 111), 117691#(<= main_x 114), 117690#(<= main_x 113), 117693#(<= main_x 116), 117692#(<= main_x 115), 117695#(<= main_x 118), 117694#(<= main_x 117), 117697#(<= main_x 120), 117696#(<= main_x 119), 117699#(<= main_x 122), 117698#(<= main_x 121), 117701#(<= main_x 124), 117700#(<= main_x 123), 117703#(<= main_x 126), 117702#(<= main_x 125), 117705#(<= main_x 128), 117704#(<= main_x 127), 117707#(<= main_x 130), 117706#(<= main_x 129), 117709#(<= main_x 132), 117708#(<= main_x 131), 117711#(<= main_x 134), 117710#(<= main_x 133), 117713#(<= main_x 136), 117712#(<= main_x 135), 117715#(<= main_x 138), 117714#(<= main_x 137), 117717#(<= main_x 140), 117716#(<= main_x 139), 117719#(<= main_x 142), 117718#(<= main_x 141), 117721#(<= main_x 144), 117720#(<= main_x 143), 117723#(<= main_x 146), 117722#(<= main_x 145), 117725#(<= main_x 148), 117724#(<= main_x 147), 117727#(<= main_x 150), 117726#(<= main_x 149), 117729#(<= main_x 152), 117728#(<= main_x 151), 117731#(<= main_x 154), 117730#(<= main_x 153), 117733#(<= main_x 156), 117732#(<= main_x 155), 117735#(<= main_x 158), 117734#(<= main_x 157), 117737#(<= main_x 160), 117736#(<= main_x 159), 117739#(<= main_x 162), 117738#(<= main_x 161), 117741#(<= main_x 164), 117740#(<= main_x 163), 117743#(<= main_x 166), 117742#(<= main_x 165), 117745#(<= main_x 168), 117744#(<= main_x 167), 117747#(<= main_x 170), 117746#(<= main_x 169), 117749#(<= main_x 172), 117748#(<= main_x 171), 117751#(<= main_x 174), 117750#(<= main_x 173), 117753#(<= main_x 176), 117752#(<= main_x 175), 117755#(<= main_x 178), 117754#(<= main_x 177), 117757#(<= main_x 180), 117756#(<= main_x 179), 117759#(<= main_x 182), 117758#(<= main_x 181)] [2018-07-23 13:57:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 22578 backedges. 0 proven. 22578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:20,949 INFO L450 AbstractCegarLoop]: Interpolant automaton has 215 states [2018-07-23 13:57:20,951 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 215 interpolants. [2018-07-23 13:57:20,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23005, Invalid=23005, Unknown=0, NotChecked=0, Total=46010 [2018-07-23 13:57:20,951 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand 215 states. [2018-07-23 13:57:21,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:21,636 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2018-07-23 13:57:21,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2018-07-23 13:57:21,637 INFO L78 Accepts]: Start accepts. Automaton has 215 states. Word has length 215 [2018-07-23 13:57:21,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:21,637 INFO L225 Difference]: With dead ends: 219 [2018-07-23 13:57:21,637 INFO L226 Difference]: Without dead ends: 217 [2018-07-23 13:57:21,638 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23005, Invalid=23005, Unknown=0, NotChecked=0, Total=46010 [2018-07-23 13:57:21,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-07-23 13:57:21,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2018-07-23 13:57:21,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-07-23 13:57:21,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 217 transitions. [2018-07-23 13:57:21,640 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 217 transitions. Word has length 215 [2018-07-23 13:57:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:21,640 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 217 transitions. [2018-07-23 13:57:21,640 INFO L472 AbstractCegarLoop]: Interpolant automaton has 215 states. [2018-07-23 13:57:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 217 transitions. [2018-07-23 13:57:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-07-23 13:57:21,641 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:21,641 INFO L357 BasicCegarLoop]: trace histogram [213, 1, 1, 1] [2018-07-23 13:57:21,641 INFO L414 AbstractCegarLoop]: === Iteration 214 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:21,641 INFO L82 PathProgramCache]: Analyzing trace with hash 2121273350, now seen corresponding path program 213 times [2018-07-23 13:57:21,641 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 22791 backedges. 0 proven. 22791 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:22,867 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:22,867 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [215] total 215 [2018-07-23 13:57:22,868 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:22,868 INFO L185 omatonBuilderFactory]: Interpolants [118785#(<= main_x 121), 118784#(<= main_x 120), 118787#(<= main_x 123), 118786#(<= main_x 122), 118789#(<= main_x 125), 118788#(<= main_x 124), 118791#(<= main_x 127), 118790#(<= main_x 126), 118793#(<= main_x 129), 118792#(<= main_x 128), 118795#(<= main_x 131), 118794#(<= main_x 130), 118797#(<= main_x 133), 118796#(<= main_x 132), 118799#(<= main_x 135), 118798#(<= main_x 134), 118801#(<= main_x 137), 118800#(<= main_x 136), 118803#(<= main_x 139), 118802#(<= main_x 138), 118805#(<= main_x 141), 118804#(<= main_x 140), 118807#(<= main_x 143), 118806#(<= main_x 142), 118809#(<= main_x 145), 118808#(<= main_x 144), 118811#(<= main_x 147), 118810#(<= main_x 146), 118813#(<= main_x 149), 118812#(<= main_x 148), 118815#(<= main_x 151), 118814#(<= main_x 150), 118817#(<= main_x 153), 118816#(<= main_x 152), 118819#(<= main_x 155), 118818#(<= main_x 154), 118821#(<= main_x 157), 118820#(<= main_x 156), 118823#(<= main_x 159), 118822#(<= main_x 158), 118825#(<= main_x 161), 118824#(<= main_x 160), 118827#(<= main_x 163), 118826#(<= main_x 162), 118829#(<= main_x 165), 118828#(<= main_x 164), 118831#(<= main_x 167), 118830#(<= main_x 166), 118833#(<= main_x 169), 118832#(<= main_x 168), 118835#(<= main_x 171), 118834#(<= main_x 170), 118837#(<= main_x 173), 118836#(<= main_x 172), 118839#(<= main_x 175), 118838#(<= main_x 174), 118841#(<= main_x 177), 118840#(<= main_x 176), 118843#(<= main_x 179), 118842#(<= main_x 178), 118845#(<= main_x 181), 118844#(<= main_x 180), 118847#(<= main_x 183), 118846#(<= main_x 182), 118849#(<= main_x 185), 118848#(<= main_x 184), 118851#(<= main_x 187), 118850#(<= main_x 186), 118853#(<= main_x 189), 118852#(<= main_x 188), 118855#(<= main_x 191), 118854#(<= main_x 190), 118857#(<= main_x 193), 118856#(<= main_x 192), 118859#(<= main_x 195), 118858#(<= main_x 194), 118861#(<= main_x 197), 118860#(<= main_x 196), 118863#(<= main_x 199), 118862#(<= main_x 198), 118865#(<= main_x 201), 118864#(<= main_x 200), 118867#(<= main_x 203), 118866#(<= main_x 202), 118869#(<= main_x 205), 118868#(<= main_x 204), 118871#(<= main_x 207), 118870#(<= main_x 206), 118873#(<= main_x 209), 118872#(<= main_x 208), 118875#(<= main_x 211), 118874#(<= main_x 210), 118877#(<= main_x 213), 118876#(<= main_x 212), 118663#false, 118662#true, 118665#(<= main_x 1), 118664#(<= main_x 0), 118667#(<= main_x 3), 118666#(<= main_x 2), 118669#(<= main_x 5), 118668#(<= main_x 4), 118671#(<= main_x 7), 118670#(<= main_x 6), 118673#(<= main_x 9), 118672#(<= main_x 8), 118675#(<= main_x 11), 118674#(<= main_x 10), 118677#(<= main_x 13), 118676#(<= main_x 12), 118679#(<= main_x 15), 118678#(<= main_x 14), 118681#(<= main_x 17), 118680#(<= main_x 16), 118683#(<= main_x 19), 118682#(<= main_x 18), 118685#(<= main_x 21), 118684#(<= main_x 20), 118687#(<= main_x 23), 118686#(<= main_x 22), 118689#(<= main_x 25), 118688#(<= main_x 24), 118691#(<= main_x 27), 118690#(<= main_x 26), 118693#(<= main_x 29), 118692#(<= main_x 28), 118695#(<= main_x 31), 118694#(<= main_x 30), 118697#(<= main_x 33), 118696#(<= main_x 32), 118699#(<= main_x 35), 118698#(<= main_x 34), 118701#(<= main_x 37), 118700#(<= main_x 36), 118703#(<= main_x 39), 118702#(<= main_x 38), 118705#(<= main_x 41), 118704#(<= main_x 40), 118707#(<= main_x 43), 118706#(<= main_x 42), 118709#(<= main_x 45), 118708#(<= main_x 44), 118711#(<= main_x 47), 118710#(<= main_x 46), 118713#(<= main_x 49), 118712#(<= main_x 48), 118715#(<= main_x 51), 118714#(<= main_x 50), 118717#(<= main_x 53), 118716#(<= main_x 52), 118719#(<= main_x 55), 118718#(<= main_x 54), 118721#(<= main_x 57), 118720#(<= main_x 56), 118723#(<= main_x 59), 118722#(<= main_x 58), 118725#(<= main_x 61), 118724#(<= main_x 60), 118727#(<= main_x 63), 118726#(<= main_x 62), 118729#(<= main_x 65), 118728#(<= main_x 64), 118731#(<= main_x 67), 118730#(<= main_x 66), 118733#(<= main_x 69), 118732#(<= main_x 68), 118735#(<= main_x 71), 118734#(<= main_x 70), 118737#(<= main_x 73), 118736#(<= main_x 72), 118739#(<= main_x 75), 118738#(<= main_x 74), 118741#(<= main_x 77), 118740#(<= main_x 76), 118743#(<= main_x 79), 118742#(<= main_x 78), 118745#(<= main_x 81), 118744#(<= main_x 80), 118747#(<= main_x 83), 118746#(<= main_x 82), 118749#(<= main_x 85), 118748#(<= main_x 84), 118751#(<= main_x 87), 118750#(<= main_x 86), 118753#(<= main_x 89), 118752#(<= main_x 88), 118755#(<= main_x 91), 118754#(<= main_x 90), 118757#(<= main_x 93), 118756#(<= main_x 92), 118759#(<= main_x 95), 118758#(<= main_x 94), 118761#(<= main_x 97), 118760#(<= main_x 96), 118763#(<= main_x 99), 118762#(<= main_x 98), 118765#(<= main_x 101), 118764#(<= main_x 100), 118767#(<= main_x 103), 118766#(<= main_x 102), 118769#(<= main_x 105), 118768#(<= main_x 104), 118771#(<= main_x 107), 118770#(<= main_x 106), 118773#(<= main_x 109), 118772#(<= main_x 108), 118775#(<= main_x 111), 118774#(<= main_x 110), 118777#(<= main_x 113), 118776#(<= main_x 112), 118779#(<= main_x 115), 118778#(<= main_x 114), 118781#(<= main_x 117), 118780#(<= main_x 116), 118783#(<= main_x 119), 118782#(<= main_x 118)] [2018-07-23 13:57:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 22791 backedges. 0 proven. 22791 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:22,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 216 states [2018-07-23 13:57:22,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2018-07-23 13:57:22,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23220, Invalid=23220, Unknown=0, NotChecked=0, Total=46440 [2018-07-23 13:57:22,875 INFO L87 Difference]: Start difference. First operand 217 states and 217 transitions. Second operand 216 states. [2018-07-23 13:57:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:23,290 INFO L93 Difference]: Finished difference Result 220 states and 220 transitions. [2018-07-23 13:57:23,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2018-07-23 13:57:23,291 INFO L78 Accepts]: Start accepts. Automaton has 216 states. Word has length 216 [2018-07-23 13:57:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:23,291 INFO L225 Difference]: With dead ends: 220 [2018-07-23 13:57:23,291 INFO L226 Difference]: Without dead ends: 218 [2018-07-23 13:57:23,293 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23220, Invalid=23220, Unknown=0, NotChecked=0, Total=46440 [2018-07-23 13:57:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-07-23 13:57:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2018-07-23 13:57:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-07-23 13:57:23,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 218 transitions. [2018-07-23 13:57:23,295 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 218 transitions. Word has length 216 [2018-07-23 13:57:23,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:23,296 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 218 transitions. [2018-07-23 13:57:23,296 INFO L472 AbstractCegarLoop]: Interpolant automaton has 216 states. [2018-07-23 13:57:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 218 transitions. [2018-07-23 13:57:23,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-07-23 13:57:23,296 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:23,296 INFO L357 BasicCegarLoop]: trace histogram [214, 1, 1, 1] [2018-07-23 13:57:23,296 INFO L414 AbstractCegarLoop]: === Iteration 215 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:23,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1334960544, now seen corresponding path program 214 times [2018-07-23 13:57:23,297 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 23005 backedges. 0 proven. 23005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:24,488 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:24,488 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [216] total 216 [2018-07-23 13:57:24,488 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:24,489 INFO L185 omatonBuilderFactory]: Interpolants [119809#(<= main_x 53), 119808#(<= main_x 52), 119811#(<= main_x 55), 119810#(<= main_x 54), 119813#(<= main_x 57), 119812#(<= main_x 56), 119815#(<= main_x 59), 119814#(<= main_x 58), 119817#(<= main_x 61), 119816#(<= main_x 60), 119819#(<= main_x 63), 119818#(<= main_x 62), 119821#(<= main_x 65), 119820#(<= main_x 64), 119823#(<= main_x 67), 119822#(<= main_x 66), 119825#(<= main_x 69), 119824#(<= main_x 68), 119827#(<= main_x 71), 119826#(<= main_x 70), 119829#(<= main_x 73), 119828#(<= main_x 72), 119831#(<= main_x 75), 119830#(<= main_x 74), 119833#(<= main_x 77), 119832#(<= main_x 76), 119835#(<= main_x 79), 119834#(<= main_x 78), 119837#(<= main_x 81), 119836#(<= main_x 80), 119839#(<= main_x 83), 119838#(<= main_x 82), 119841#(<= main_x 85), 119840#(<= main_x 84), 119843#(<= main_x 87), 119842#(<= main_x 86), 119845#(<= main_x 89), 119844#(<= main_x 88), 119847#(<= main_x 91), 119846#(<= main_x 90), 119849#(<= main_x 93), 119848#(<= main_x 92), 119851#(<= main_x 95), 119850#(<= main_x 94), 119853#(<= main_x 97), 119852#(<= main_x 96), 119855#(<= main_x 99), 119854#(<= main_x 98), 119857#(<= main_x 101), 119856#(<= main_x 100), 119859#(<= main_x 103), 119858#(<= main_x 102), 119861#(<= main_x 105), 119860#(<= main_x 104), 119863#(<= main_x 107), 119862#(<= main_x 106), 119865#(<= main_x 109), 119864#(<= main_x 108), 119867#(<= main_x 111), 119866#(<= main_x 110), 119869#(<= main_x 113), 119868#(<= main_x 112), 119871#(<= main_x 115), 119870#(<= main_x 114), 119873#(<= main_x 117), 119872#(<= main_x 116), 119875#(<= main_x 119), 119874#(<= main_x 118), 119877#(<= main_x 121), 119876#(<= main_x 120), 119879#(<= main_x 123), 119878#(<= main_x 122), 119881#(<= main_x 125), 119880#(<= main_x 124), 119883#(<= main_x 127), 119882#(<= main_x 126), 119885#(<= main_x 129), 119884#(<= main_x 128), 119887#(<= main_x 131), 119886#(<= main_x 130), 119889#(<= main_x 133), 119888#(<= main_x 132), 119891#(<= main_x 135), 119890#(<= main_x 134), 119893#(<= main_x 137), 119892#(<= main_x 136), 119895#(<= main_x 139), 119894#(<= main_x 138), 119897#(<= main_x 141), 119896#(<= main_x 140), 119899#(<= main_x 143), 119898#(<= main_x 142), 119901#(<= main_x 145), 119900#(<= main_x 144), 119903#(<= main_x 147), 119902#(<= main_x 146), 119905#(<= main_x 149), 119904#(<= main_x 148), 119907#(<= main_x 151), 119906#(<= main_x 150), 119909#(<= main_x 153), 119908#(<= main_x 152), 119911#(<= main_x 155), 119910#(<= main_x 154), 119913#(<= main_x 157), 119912#(<= main_x 156), 119915#(<= main_x 159), 119914#(<= main_x 158), 119917#(<= main_x 161), 119916#(<= main_x 160), 119919#(<= main_x 163), 119918#(<= main_x 162), 119921#(<= main_x 165), 119920#(<= main_x 164), 119923#(<= main_x 167), 119922#(<= main_x 166), 119925#(<= main_x 169), 119924#(<= main_x 168), 119927#(<= main_x 171), 119926#(<= main_x 170), 119929#(<= main_x 173), 119928#(<= main_x 172), 119931#(<= main_x 175), 119930#(<= main_x 174), 119933#(<= main_x 177), 119932#(<= main_x 176), 119935#(<= main_x 179), 119934#(<= main_x 178), 119937#(<= main_x 181), 119936#(<= main_x 180), 119939#(<= main_x 183), 119938#(<= main_x 182), 119941#(<= main_x 185), 119940#(<= main_x 184), 119943#(<= main_x 187), 119942#(<= main_x 186), 119945#(<= main_x 189), 119944#(<= main_x 188), 119947#(<= main_x 191), 119946#(<= main_x 190), 119949#(<= main_x 193), 119948#(<= main_x 192), 119951#(<= main_x 195), 119950#(<= main_x 194), 119953#(<= main_x 197), 119952#(<= main_x 196), 119955#(<= main_x 199), 119954#(<= main_x 198), 119957#(<= main_x 201), 119956#(<= main_x 200), 119959#(<= main_x 203), 119958#(<= main_x 202), 119961#(<= main_x 205), 119960#(<= main_x 204), 119963#(<= main_x 207), 119962#(<= main_x 206), 119965#(<= main_x 209), 119964#(<= main_x 208), 119967#(<= main_x 211), 119966#(<= main_x 210), 119969#(<= main_x 213), 119968#(<= main_x 212), 119970#(<= main_x 214), 119755#false, 119754#true, 119757#(<= main_x 1), 119756#(<= main_x 0), 119759#(<= main_x 3), 119758#(<= main_x 2), 119761#(<= main_x 5), 119760#(<= main_x 4), 119763#(<= main_x 7), 119762#(<= main_x 6), 119765#(<= main_x 9), 119764#(<= main_x 8), 119767#(<= main_x 11), 119766#(<= main_x 10), 119769#(<= main_x 13), 119768#(<= main_x 12), 119771#(<= main_x 15), 119770#(<= main_x 14), 119773#(<= main_x 17), 119772#(<= main_x 16), 119775#(<= main_x 19), 119774#(<= main_x 18), 119777#(<= main_x 21), 119776#(<= main_x 20), 119779#(<= main_x 23), 119778#(<= main_x 22), 119781#(<= main_x 25), 119780#(<= main_x 24), 119783#(<= main_x 27), 119782#(<= main_x 26), 119785#(<= main_x 29), 119784#(<= main_x 28), 119787#(<= main_x 31), 119786#(<= main_x 30), 119789#(<= main_x 33), 119788#(<= main_x 32), 119791#(<= main_x 35), 119790#(<= main_x 34), 119793#(<= main_x 37), 119792#(<= main_x 36), 119795#(<= main_x 39), 119794#(<= main_x 38), 119797#(<= main_x 41), 119796#(<= main_x 40), 119799#(<= main_x 43), 119798#(<= main_x 42), 119801#(<= main_x 45), 119800#(<= main_x 44), 119803#(<= main_x 47), 119802#(<= main_x 46), 119805#(<= main_x 49), 119804#(<= main_x 48), 119807#(<= main_x 51), 119806#(<= main_x 50)] [2018-07-23 13:57:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 23005 backedges. 0 proven. 23005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:24,490 INFO L450 AbstractCegarLoop]: Interpolant automaton has 217 states [2018-07-23 13:57:24,492 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 217 interpolants. [2018-07-23 13:57:24,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23436, Invalid=23436, Unknown=0, NotChecked=0, Total=46872 [2018-07-23 13:57:24,494 INFO L87 Difference]: Start difference. First operand 218 states and 218 transitions. Second operand 217 states. [2018-07-23 13:57:25,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:25,330 INFO L93 Difference]: Finished difference Result 221 states and 221 transitions. [2018-07-23 13:57:25,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2018-07-23 13:57:25,330 INFO L78 Accepts]: Start accepts. Automaton has 217 states. Word has length 217 [2018-07-23 13:57:25,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:25,330 INFO L225 Difference]: With dead ends: 221 [2018-07-23 13:57:25,330 INFO L226 Difference]: Without dead ends: 219 [2018-07-23 13:57:25,332 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23436, Invalid=23436, Unknown=0, NotChecked=0, Total=46872 [2018-07-23 13:57:25,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-07-23 13:57:25,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2018-07-23 13:57:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-07-23 13:57:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 219 transitions. [2018-07-23 13:57:25,334 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 219 transitions. Word has length 217 [2018-07-23 13:57:25,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:25,335 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 219 transitions. [2018-07-23 13:57:25,335 INFO L472 AbstractCegarLoop]: Interpolant automaton has 217 states. [2018-07-23 13:57:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 219 transitions. [2018-07-23 13:57:25,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-07-23 13:57:25,335 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:25,335 INFO L357 BasicCegarLoop]: trace histogram [215, 1, 1, 1] [2018-07-23 13:57:25,335 INFO L414 AbstractCegarLoop]: === Iteration 216 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:25,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1565899962, now seen corresponding path program 215 times [2018-07-23 13:57:25,336 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:26,532 INFO L134 CoverageAnalysis]: Checked inductivity of 23220 backedges. 0 proven. 23220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:26,532 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:26,532 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [217] total 217 [2018-07-23 13:57:26,532 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:26,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:26,533 INFO L185 omatonBuilderFactory]: Interpolants [120851#true, 120853#(<= main_x 0), 120852#false, 120855#(<= main_x 2), 120854#(<= main_x 1), 120857#(<= main_x 4), 120856#(<= main_x 3), 120859#(<= main_x 6), 120858#(<= main_x 5), 120861#(<= main_x 8), 120860#(<= main_x 7), 120863#(<= main_x 10), 120862#(<= main_x 9), 120865#(<= main_x 12), 120864#(<= main_x 11), 120867#(<= main_x 14), 120866#(<= main_x 13), 120869#(<= main_x 16), 120868#(<= main_x 15), 120871#(<= main_x 18), 120870#(<= main_x 17), 120873#(<= main_x 20), 120872#(<= main_x 19), 120875#(<= main_x 22), 120874#(<= main_x 21), 120877#(<= main_x 24), 120876#(<= main_x 23), 120879#(<= main_x 26), 120878#(<= main_x 25), 120881#(<= main_x 28), 120880#(<= main_x 27), 120883#(<= main_x 30), 120882#(<= main_x 29), 120885#(<= main_x 32), 120884#(<= main_x 31), 120887#(<= main_x 34), 120886#(<= main_x 33), 120889#(<= main_x 36), 120888#(<= main_x 35), 120891#(<= main_x 38), 120890#(<= main_x 37), 120893#(<= main_x 40), 120892#(<= main_x 39), 120895#(<= main_x 42), 120894#(<= main_x 41), 120897#(<= main_x 44), 120896#(<= main_x 43), 120899#(<= main_x 46), 120898#(<= main_x 45), 120901#(<= main_x 48), 120900#(<= main_x 47), 120903#(<= main_x 50), 120902#(<= main_x 49), 120905#(<= main_x 52), 120904#(<= main_x 51), 120907#(<= main_x 54), 120906#(<= main_x 53), 120909#(<= main_x 56), 120908#(<= main_x 55), 120911#(<= main_x 58), 120910#(<= main_x 57), 120913#(<= main_x 60), 120912#(<= main_x 59), 120915#(<= main_x 62), 120914#(<= main_x 61), 120917#(<= main_x 64), 120916#(<= main_x 63), 120919#(<= main_x 66), 120918#(<= main_x 65), 120921#(<= main_x 68), 120920#(<= main_x 67), 120923#(<= main_x 70), 120922#(<= main_x 69), 120925#(<= main_x 72), 120924#(<= main_x 71), 120927#(<= main_x 74), 120926#(<= main_x 73), 120929#(<= main_x 76), 120928#(<= main_x 75), 120931#(<= main_x 78), 120930#(<= main_x 77), 120933#(<= main_x 80), 120932#(<= main_x 79), 120935#(<= main_x 82), 120934#(<= main_x 81), 120937#(<= main_x 84), 120936#(<= main_x 83), 120939#(<= main_x 86), 120938#(<= main_x 85), 120941#(<= main_x 88), 120940#(<= main_x 87), 120943#(<= main_x 90), 120942#(<= main_x 89), 120945#(<= main_x 92), 120944#(<= main_x 91), 120947#(<= main_x 94), 120946#(<= main_x 93), 120949#(<= main_x 96), 120948#(<= main_x 95), 120951#(<= main_x 98), 120950#(<= main_x 97), 120953#(<= main_x 100), 120952#(<= main_x 99), 120955#(<= main_x 102), 120954#(<= main_x 101), 120957#(<= main_x 104), 120956#(<= main_x 103), 120959#(<= main_x 106), 120958#(<= main_x 105), 120961#(<= main_x 108), 120960#(<= main_x 107), 120963#(<= main_x 110), 120962#(<= main_x 109), 120965#(<= main_x 112), 120964#(<= main_x 111), 120967#(<= main_x 114), 120966#(<= main_x 113), 120969#(<= main_x 116), 120968#(<= main_x 115), 120971#(<= main_x 118), 120970#(<= main_x 117), 120973#(<= main_x 120), 120972#(<= main_x 119), 120975#(<= main_x 122), 120974#(<= main_x 121), 120977#(<= main_x 124), 120976#(<= main_x 123), 120979#(<= main_x 126), 120978#(<= main_x 125), 120981#(<= main_x 128), 120980#(<= main_x 127), 120983#(<= main_x 130), 120982#(<= main_x 129), 120985#(<= main_x 132), 120984#(<= main_x 131), 120987#(<= main_x 134), 120986#(<= main_x 133), 120989#(<= main_x 136), 120988#(<= main_x 135), 120991#(<= main_x 138), 120990#(<= main_x 137), 120993#(<= main_x 140), 120992#(<= main_x 139), 120995#(<= main_x 142), 120994#(<= main_x 141), 120997#(<= main_x 144), 120996#(<= main_x 143), 120999#(<= main_x 146), 120998#(<= main_x 145), 121001#(<= main_x 148), 121000#(<= main_x 147), 121003#(<= main_x 150), 121002#(<= main_x 149), 121005#(<= main_x 152), 121004#(<= main_x 151), 121007#(<= main_x 154), 121006#(<= main_x 153), 121009#(<= main_x 156), 121008#(<= main_x 155), 121011#(<= main_x 158), 121010#(<= main_x 157), 121013#(<= main_x 160), 121012#(<= main_x 159), 121015#(<= main_x 162), 121014#(<= main_x 161), 121017#(<= main_x 164), 121016#(<= main_x 163), 121019#(<= main_x 166), 121018#(<= main_x 165), 121021#(<= main_x 168), 121020#(<= main_x 167), 121023#(<= main_x 170), 121022#(<= main_x 169), 121025#(<= main_x 172), 121024#(<= main_x 171), 121027#(<= main_x 174), 121026#(<= main_x 173), 121029#(<= main_x 176), 121028#(<= main_x 175), 121031#(<= main_x 178), 121030#(<= main_x 177), 121033#(<= main_x 180), 121032#(<= main_x 179), 121035#(<= main_x 182), 121034#(<= main_x 181), 121037#(<= main_x 184), 121036#(<= main_x 183), 121039#(<= main_x 186), 121038#(<= main_x 185), 121041#(<= main_x 188), 121040#(<= main_x 187), 121043#(<= main_x 190), 121042#(<= main_x 189), 121045#(<= main_x 192), 121044#(<= main_x 191), 121047#(<= main_x 194), 121046#(<= main_x 193), 121049#(<= main_x 196), 121048#(<= main_x 195), 121051#(<= main_x 198), 121050#(<= main_x 197), 121053#(<= main_x 200), 121052#(<= main_x 199), 121055#(<= main_x 202), 121054#(<= main_x 201), 121057#(<= main_x 204), 121056#(<= main_x 203), 121059#(<= main_x 206), 121058#(<= main_x 205), 121061#(<= main_x 208), 121060#(<= main_x 207), 121063#(<= main_x 210), 121062#(<= main_x 209), 121065#(<= main_x 212), 121064#(<= main_x 211), 121067#(<= main_x 214), 121066#(<= main_x 213), 121068#(<= main_x 215)] [2018-07-23 13:57:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 23220 backedges. 0 proven. 23220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:26,534 INFO L450 AbstractCegarLoop]: Interpolant automaton has 218 states [2018-07-23 13:57:26,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 218 interpolants. [2018-07-23 13:57:26,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23653, Invalid=23653, Unknown=0, NotChecked=0, Total=47306 [2018-07-23 13:57:26,538 INFO L87 Difference]: Start difference. First operand 219 states and 219 transitions. Second operand 218 states. [2018-07-23 13:57:27,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:27,855 INFO L93 Difference]: Finished difference Result 222 states and 222 transitions. [2018-07-23 13:57:27,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2018-07-23 13:57:27,856 INFO L78 Accepts]: Start accepts. Automaton has 218 states. Word has length 218 [2018-07-23 13:57:27,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:27,856 INFO L225 Difference]: With dead ends: 222 [2018-07-23 13:57:27,856 INFO L226 Difference]: Without dead ends: 220 [2018-07-23 13:57:27,858 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23653, Invalid=23653, Unknown=0, NotChecked=0, Total=47306 [2018-07-23 13:57:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-07-23 13:57:27,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2018-07-23 13:57:27,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-07-23 13:57:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 220 transitions. [2018-07-23 13:57:27,860 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 220 transitions. Word has length 218 [2018-07-23 13:57:27,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:27,861 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 220 transitions. [2018-07-23 13:57:27,861 INFO L472 AbstractCegarLoop]: Interpolant automaton has 218 states. [2018-07-23 13:57:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 220 transitions. [2018-07-23 13:57:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-07-23 13:57:27,861 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:27,861 INFO L357 BasicCegarLoop]: trace histogram [216, 1, 1, 1] [2018-07-23 13:57:27,861 INFO L414 AbstractCegarLoop]: === Iteration 217 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:27,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1298262432, now seen corresponding path program 216 times [2018-07-23 13:57:27,862 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 23436 backedges. 0 proven. 23436 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:29,114 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:29,114 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [218] total 218 [2018-07-23 13:57:29,114 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:29,115 INFO L185 omatonBuilderFactory]: Interpolants [121953#true, 121955#(<= main_x 0), 121954#false, 121957#(<= main_x 2), 121956#(<= main_x 1), 121959#(<= main_x 4), 121958#(<= main_x 3), 121961#(<= main_x 6), 121960#(<= main_x 5), 121963#(<= main_x 8), 121962#(<= main_x 7), 121965#(<= main_x 10), 121964#(<= main_x 9), 121967#(<= main_x 12), 121966#(<= main_x 11), 121969#(<= main_x 14), 121968#(<= main_x 13), 121971#(<= main_x 16), 121970#(<= main_x 15), 121973#(<= main_x 18), 121972#(<= main_x 17), 121975#(<= main_x 20), 121974#(<= main_x 19), 121977#(<= main_x 22), 121976#(<= main_x 21), 121979#(<= main_x 24), 121978#(<= main_x 23), 121981#(<= main_x 26), 121980#(<= main_x 25), 121983#(<= main_x 28), 121982#(<= main_x 27), 121985#(<= main_x 30), 121984#(<= main_x 29), 121987#(<= main_x 32), 121986#(<= main_x 31), 121989#(<= main_x 34), 121988#(<= main_x 33), 121991#(<= main_x 36), 121990#(<= main_x 35), 121993#(<= main_x 38), 121992#(<= main_x 37), 121995#(<= main_x 40), 121994#(<= main_x 39), 121997#(<= main_x 42), 121996#(<= main_x 41), 121999#(<= main_x 44), 121998#(<= main_x 43), 122001#(<= main_x 46), 122000#(<= main_x 45), 122003#(<= main_x 48), 122002#(<= main_x 47), 122005#(<= main_x 50), 122004#(<= main_x 49), 122007#(<= main_x 52), 122006#(<= main_x 51), 122009#(<= main_x 54), 122008#(<= main_x 53), 122011#(<= main_x 56), 122010#(<= main_x 55), 122013#(<= main_x 58), 122012#(<= main_x 57), 122015#(<= main_x 60), 122014#(<= main_x 59), 122017#(<= main_x 62), 122016#(<= main_x 61), 122019#(<= main_x 64), 122018#(<= main_x 63), 122021#(<= main_x 66), 122020#(<= main_x 65), 122023#(<= main_x 68), 122022#(<= main_x 67), 122025#(<= main_x 70), 122024#(<= main_x 69), 122027#(<= main_x 72), 122026#(<= main_x 71), 122029#(<= main_x 74), 122028#(<= main_x 73), 122031#(<= main_x 76), 122030#(<= main_x 75), 122033#(<= main_x 78), 122032#(<= main_x 77), 122035#(<= main_x 80), 122034#(<= main_x 79), 122037#(<= main_x 82), 122036#(<= main_x 81), 122039#(<= main_x 84), 122038#(<= main_x 83), 122041#(<= main_x 86), 122040#(<= main_x 85), 122043#(<= main_x 88), 122042#(<= main_x 87), 122045#(<= main_x 90), 122044#(<= main_x 89), 122047#(<= main_x 92), 122046#(<= main_x 91), 122049#(<= main_x 94), 122048#(<= main_x 93), 122051#(<= main_x 96), 122050#(<= main_x 95), 122053#(<= main_x 98), 122052#(<= main_x 97), 122055#(<= main_x 100), 122054#(<= main_x 99), 122057#(<= main_x 102), 122056#(<= main_x 101), 122059#(<= main_x 104), 122058#(<= main_x 103), 122061#(<= main_x 106), 122060#(<= main_x 105), 122063#(<= main_x 108), 122062#(<= main_x 107), 122065#(<= main_x 110), 122064#(<= main_x 109), 122067#(<= main_x 112), 122066#(<= main_x 111), 122069#(<= main_x 114), 122068#(<= main_x 113), 122071#(<= main_x 116), 122070#(<= main_x 115), 122073#(<= main_x 118), 122072#(<= main_x 117), 122075#(<= main_x 120), 122074#(<= main_x 119), 122077#(<= main_x 122), 122076#(<= main_x 121), 122079#(<= main_x 124), 122078#(<= main_x 123), 122081#(<= main_x 126), 122080#(<= main_x 125), 122083#(<= main_x 128), 122082#(<= main_x 127), 122085#(<= main_x 130), 122084#(<= main_x 129), 122087#(<= main_x 132), 122086#(<= main_x 131), 122089#(<= main_x 134), 122088#(<= main_x 133), 122091#(<= main_x 136), 122090#(<= main_x 135), 122093#(<= main_x 138), 122092#(<= main_x 137), 122095#(<= main_x 140), 122094#(<= main_x 139), 122097#(<= main_x 142), 122096#(<= main_x 141), 122099#(<= main_x 144), 122098#(<= main_x 143), 122101#(<= main_x 146), 122100#(<= main_x 145), 122103#(<= main_x 148), 122102#(<= main_x 147), 122105#(<= main_x 150), 122104#(<= main_x 149), 122107#(<= main_x 152), 122106#(<= main_x 151), 122109#(<= main_x 154), 122108#(<= main_x 153), 122111#(<= main_x 156), 122110#(<= main_x 155), 122113#(<= main_x 158), 122112#(<= main_x 157), 122115#(<= main_x 160), 122114#(<= main_x 159), 122117#(<= main_x 162), 122116#(<= main_x 161), 122119#(<= main_x 164), 122118#(<= main_x 163), 122121#(<= main_x 166), 122120#(<= main_x 165), 122123#(<= main_x 168), 122122#(<= main_x 167), 122125#(<= main_x 170), 122124#(<= main_x 169), 122127#(<= main_x 172), 122126#(<= main_x 171), 122129#(<= main_x 174), 122128#(<= main_x 173), 122131#(<= main_x 176), 122130#(<= main_x 175), 122133#(<= main_x 178), 122132#(<= main_x 177), 122135#(<= main_x 180), 122134#(<= main_x 179), 122137#(<= main_x 182), 122136#(<= main_x 181), 122139#(<= main_x 184), 122138#(<= main_x 183), 122141#(<= main_x 186), 122140#(<= main_x 185), 122143#(<= main_x 188), 122142#(<= main_x 187), 122145#(<= main_x 190), 122144#(<= main_x 189), 122147#(<= main_x 192), 122146#(<= main_x 191), 122149#(<= main_x 194), 122148#(<= main_x 193), 122151#(<= main_x 196), 122150#(<= main_x 195), 122153#(<= main_x 198), 122152#(<= main_x 197), 122155#(<= main_x 200), 122154#(<= main_x 199), 122157#(<= main_x 202), 122156#(<= main_x 201), 122159#(<= main_x 204), 122158#(<= main_x 203), 122161#(<= main_x 206), 122160#(<= main_x 205), 122163#(<= main_x 208), 122162#(<= main_x 207), 122165#(<= main_x 210), 122164#(<= main_x 209), 122167#(<= main_x 212), 122166#(<= main_x 211), 122169#(<= main_x 214), 122168#(<= main_x 213), 122171#(<= main_x 216), 122170#(<= main_x 215)] [2018-07-23 13:57:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 23436 backedges. 0 proven. 23436 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:29,116 INFO L450 AbstractCegarLoop]: Interpolant automaton has 219 states [2018-07-23 13:57:29,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 219 interpolants. [2018-07-23 13:57:29,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23871, Invalid=23871, Unknown=0, NotChecked=0, Total=47742 [2018-07-23 13:57:29,120 INFO L87 Difference]: Start difference. First operand 220 states and 220 transitions. Second operand 219 states. [2018-07-23 13:57:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:29,972 INFO L93 Difference]: Finished difference Result 223 states and 223 transitions. [2018-07-23 13:57:29,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2018-07-23 13:57:29,972 INFO L78 Accepts]: Start accepts. Automaton has 219 states. Word has length 219 [2018-07-23 13:57:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:29,972 INFO L225 Difference]: With dead ends: 223 [2018-07-23 13:57:29,972 INFO L226 Difference]: Without dead ends: 221 [2018-07-23 13:57:29,974 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23871, Invalid=23871, Unknown=0, NotChecked=0, Total=47742 [2018-07-23 13:57:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-07-23 13:57:29,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2018-07-23 13:57:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-07-23 13:57:29,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 221 transitions. [2018-07-23 13:57:29,977 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 221 transitions. Word has length 219 [2018-07-23 13:57:29,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:29,977 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 221 transitions. [2018-07-23 13:57:29,977 INFO L472 AbstractCegarLoop]: Interpolant automaton has 219 states. [2018-07-23 13:57:29,977 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 221 transitions. [2018-07-23 13:57:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-07-23 13:57:29,978 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:29,978 INFO L357 BasicCegarLoop]: trace histogram [217, 1, 1, 1] [2018-07-23 13:57:29,978 INFO L414 AbstractCegarLoop]: === Iteration 218 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:29,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1591433594, now seen corresponding path program 217 times [2018-07-23 13:57:29,978 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 23653 backedges. 0 proven. 23653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:31,199 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:31,199 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [219] total 219 [2018-07-23 13:57:31,199 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:31,200 INFO L185 omatonBuilderFactory]: Interpolants [123061#false, 123060#true, 123063#(<= main_x 1), 123062#(<= main_x 0), 123065#(<= main_x 3), 123064#(<= main_x 2), 123067#(<= main_x 5), 123066#(<= main_x 4), 123069#(<= main_x 7), 123068#(<= main_x 6), 123071#(<= main_x 9), 123070#(<= main_x 8), 123073#(<= main_x 11), 123072#(<= main_x 10), 123075#(<= main_x 13), 123074#(<= main_x 12), 123077#(<= main_x 15), 123076#(<= main_x 14), 123079#(<= main_x 17), 123078#(<= main_x 16), 123081#(<= main_x 19), 123080#(<= main_x 18), 123083#(<= main_x 21), 123082#(<= main_x 20), 123085#(<= main_x 23), 123084#(<= main_x 22), 123087#(<= main_x 25), 123086#(<= main_x 24), 123089#(<= main_x 27), 123088#(<= main_x 26), 123091#(<= main_x 29), 123090#(<= main_x 28), 123093#(<= main_x 31), 123092#(<= main_x 30), 123095#(<= main_x 33), 123094#(<= main_x 32), 123097#(<= main_x 35), 123096#(<= main_x 34), 123099#(<= main_x 37), 123098#(<= main_x 36), 123101#(<= main_x 39), 123100#(<= main_x 38), 123103#(<= main_x 41), 123102#(<= main_x 40), 123105#(<= main_x 43), 123104#(<= main_x 42), 123107#(<= main_x 45), 123106#(<= main_x 44), 123109#(<= main_x 47), 123108#(<= main_x 46), 123111#(<= main_x 49), 123110#(<= main_x 48), 123113#(<= main_x 51), 123112#(<= main_x 50), 123115#(<= main_x 53), 123114#(<= main_x 52), 123117#(<= main_x 55), 123116#(<= main_x 54), 123119#(<= main_x 57), 123118#(<= main_x 56), 123121#(<= main_x 59), 123120#(<= main_x 58), 123123#(<= main_x 61), 123122#(<= main_x 60), 123125#(<= main_x 63), 123124#(<= main_x 62), 123127#(<= main_x 65), 123126#(<= main_x 64), 123129#(<= main_x 67), 123128#(<= main_x 66), 123131#(<= main_x 69), 123130#(<= main_x 68), 123133#(<= main_x 71), 123132#(<= main_x 70), 123135#(<= main_x 73), 123134#(<= main_x 72), 123137#(<= main_x 75), 123136#(<= main_x 74), 123139#(<= main_x 77), 123138#(<= main_x 76), 123141#(<= main_x 79), 123140#(<= main_x 78), 123143#(<= main_x 81), 123142#(<= main_x 80), 123145#(<= main_x 83), 123144#(<= main_x 82), 123147#(<= main_x 85), 123146#(<= main_x 84), 123149#(<= main_x 87), 123148#(<= main_x 86), 123151#(<= main_x 89), 123150#(<= main_x 88), 123153#(<= main_x 91), 123152#(<= main_x 90), 123155#(<= main_x 93), 123154#(<= main_x 92), 123157#(<= main_x 95), 123156#(<= main_x 94), 123159#(<= main_x 97), 123158#(<= main_x 96), 123161#(<= main_x 99), 123160#(<= main_x 98), 123163#(<= main_x 101), 123162#(<= main_x 100), 123165#(<= main_x 103), 123164#(<= main_x 102), 123167#(<= main_x 105), 123166#(<= main_x 104), 123169#(<= main_x 107), 123168#(<= main_x 106), 123171#(<= main_x 109), 123170#(<= main_x 108), 123173#(<= main_x 111), 123172#(<= main_x 110), 123175#(<= main_x 113), 123174#(<= main_x 112), 123177#(<= main_x 115), 123176#(<= main_x 114), 123179#(<= main_x 117), 123178#(<= main_x 116), 123181#(<= main_x 119), 123180#(<= main_x 118), 123183#(<= main_x 121), 123182#(<= main_x 120), 123185#(<= main_x 123), 123184#(<= main_x 122), 123187#(<= main_x 125), 123186#(<= main_x 124), 123189#(<= main_x 127), 123188#(<= main_x 126), 123191#(<= main_x 129), 123190#(<= main_x 128), 123193#(<= main_x 131), 123192#(<= main_x 130), 123195#(<= main_x 133), 123194#(<= main_x 132), 123197#(<= main_x 135), 123196#(<= main_x 134), 123199#(<= main_x 137), 123198#(<= main_x 136), 123201#(<= main_x 139), 123200#(<= main_x 138), 123203#(<= main_x 141), 123202#(<= main_x 140), 123205#(<= main_x 143), 123204#(<= main_x 142), 123207#(<= main_x 145), 123206#(<= main_x 144), 123209#(<= main_x 147), 123208#(<= main_x 146), 123211#(<= main_x 149), 123210#(<= main_x 148), 123213#(<= main_x 151), 123212#(<= main_x 150), 123215#(<= main_x 153), 123214#(<= main_x 152), 123217#(<= main_x 155), 123216#(<= main_x 154), 123219#(<= main_x 157), 123218#(<= main_x 156), 123221#(<= main_x 159), 123220#(<= main_x 158), 123223#(<= main_x 161), 123222#(<= main_x 160), 123225#(<= main_x 163), 123224#(<= main_x 162), 123227#(<= main_x 165), 123226#(<= main_x 164), 123229#(<= main_x 167), 123228#(<= main_x 166), 123231#(<= main_x 169), 123230#(<= main_x 168), 123233#(<= main_x 171), 123232#(<= main_x 170), 123235#(<= main_x 173), 123234#(<= main_x 172), 123237#(<= main_x 175), 123236#(<= main_x 174), 123239#(<= main_x 177), 123238#(<= main_x 176), 123241#(<= main_x 179), 123240#(<= main_x 178), 123243#(<= main_x 181), 123242#(<= main_x 180), 123245#(<= main_x 183), 123244#(<= main_x 182), 123247#(<= main_x 185), 123246#(<= main_x 184), 123249#(<= main_x 187), 123248#(<= main_x 186), 123251#(<= main_x 189), 123250#(<= main_x 188), 123253#(<= main_x 191), 123252#(<= main_x 190), 123255#(<= main_x 193), 123254#(<= main_x 192), 123257#(<= main_x 195), 123256#(<= main_x 194), 123259#(<= main_x 197), 123258#(<= main_x 196), 123261#(<= main_x 199), 123260#(<= main_x 198), 123263#(<= main_x 201), 123262#(<= main_x 200), 123265#(<= main_x 203), 123264#(<= main_x 202), 123267#(<= main_x 205), 123266#(<= main_x 204), 123269#(<= main_x 207), 123268#(<= main_x 206), 123271#(<= main_x 209), 123270#(<= main_x 208), 123273#(<= main_x 211), 123272#(<= main_x 210), 123275#(<= main_x 213), 123274#(<= main_x 212), 123277#(<= main_x 215), 123276#(<= main_x 214), 123279#(<= main_x 217), 123278#(<= main_x 216)] [2018-07-23 13:57:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 23653 backedges. 0 proven. 23653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:31,202 INFO L450 AbstractCegarLoop]: Interpolant automaton has 220 states [2018-07-23 13:57:31,205 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 220 interpolants. [2018-07-23 13:57:31,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24090, Invalid=24090, Unknown=0, NotChecked=0, Total=48180 [2018-07-23 13:57:31,207 INFO L87 Difference]: Start difference. First operand 221 states and 221 transitions. Second operand 220 states. [2018-07-23 13:57:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:32,322 INFO L93 Difference]: Finished difference Result 224 states and 224 transitions. [2018-07-23 13:57:32,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2018-07-23 13:57:32,323 INFO L78 Accepts]: Start accepts. Automaton has 220 states. Word has length 220 [2018-07-23 13:57:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:32,323 INFO L225 Difference]: With dead ends: 224 [2018-07-23 13:57:32,323 INFO L226 Difference]: Without dead ends: 222 [2018-07-23 13:57:32,325 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=24090, Invalid=24090, Unknown=0, NotChecked=0, Total=48180 [2018-07-23 13:57:32,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-07-23 13:57:32,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2018-07-23 13:57:32,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-07-23 13:57:32,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2018-07-23 13:57:32,328 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 220 [2018-07-23 13:57:32,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:32,329 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2018-07-23 13:57:32,329 INFO L472 AbstractCegarLoop]: Interpolant automaton has 220 states. [2018-07-23 13:57:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2018-07-23 13:57:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-07-23 13:57:32,329 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:32,329 INFO L357 BasicCegarLoop]: trace histogram [218, 1, 1, 1] [2018-07-23 13:57:32,329 INFO L414 AbstractCegarLoop]: === Iteration 219 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:32,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2089805024, now seen corresponding path program 218 times [2018-07-23 13:57:32,330 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 23871 backedges. 0 proven. 23871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:33,782 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:33,782 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [220] total 220 [2018-07-23 13:57:33,782 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:33,783 INFO L185 omatonBuilderFactory]: Interpolants [124173#false, 124172#true, 124175#(<= main_x 1), 124174#(<= main_x 0), 124177#(<= main_x 3), 124176#(<= main_x 2), 124179#(<= main_x 5), 124178#(<= main_x 4), 124181#(<= main_x 7), 124180#(<= main_x 6), 124183#(<= main_x 9), 124182#(<= main_x 8), 124185#(<= main_x 11), 124184#(<= main_x 10), 124187#(<= main_x 13), 124186#(<= main_x 12), 124189#(<= main_x 15), 124188#(<= main_x 14), 124191#(<= main_x 17), 124190#(<= main_x 16), 124193#(<= main_x 19), 124192#(<= main_x 18), 124195#(<= main_x 21), 124194#(<= main_x 20), 124197#(<= main_x 23), 124196#(<= main_x 22), 124199#(<= main_x 25), 124198#(<= main_x 24), 124201#(<= main_x 27), 124200#(<= main_x 26), 124203#(<= main_x 29), 124202#(<= main_x 28), 124205#(<= main_x 31), 124204#(<= main_x 30), 124207#(<= main_x 33), 124206#(<= main_x 32), 124209#(<= main_x 35), 124208#(<= main_x 34), 124211#(<= main_x 37), 124210#(<= main_x 36), 124213#(<= main_x 39), 124212#(<= main_x 38), 124215#(<= main_x 41), 124214#(<= main_x 40), 124217#(<= main_x 43), 124216#(<= main_x 42), 124219#(<= main_x 45), 124218#(<= main_x 44), 124221#(<= main_x 47), 124220#(<= main_x 46), 124223#(<= main_x 49), 124222#(<= main_x 48), 124225#(<= main_x 51), 124224#(<= main_x 50), 124227#(<= main_x 53), 124226#(<= main_x 52), 124229#(<= main_x 55), 124228#(<= main_x 54), 124231#(<= main_x 57), 124230#(<= main_x 56), 124233#(<= main_x 59), 124232#(<= main_x 58), 124235#(<= main_x 61), 124234#(<= main_x 60), 124237#(<= main_x 63), 124236#(<= main_x 62), 124239#(<= main_x 65), 124238#(<= main_x 64), 124241#(<= main_x 67), 124240#(<= main_x 66), 124243#(<= main_x 69), 124242#(<= main_x 68), 124245#(<= main_x 71), 124244#(<= main_x 70), 124247#(<= main_x 73), 124246#(<= main_x 72), 124249#(<= main_x 75), 124248#(<= main_x 74), 124251#(<= main_x 77), 124250#(<= main_x 76), 124253#(<= main_x 79), 124252#(<= main_x 78), 124255#(<= main_x 81), 124254#(<= main_x 80), 124257#(<= main_x 83), 124256#(<= main_x 82), 124259#(<= main_x 85), 124258#(<= main_x 84), 124261#(<= main_x 87), 124260#(<= main_x 86), 124263#(<= main_x 89), 124262#(<= main_x 88), 124265#(<= main_x 91), 124264#(<= main_x 90), 124267#(<= main_x 93), 124266#(<= main_x 92), 124269#(<= main_x 95), 124268#(<= main_x 94), 124271#(<= main_x 97), 124270#(<= main_x 96), 124273#(<= main_x 99), 124272#(<= main_x 98), 124275#(<= main_x 101), 124274#(<= main_x 100), 124277#(<= main_x 103), 124276#(<= main_x 102), 124279#(<= main_x 105), 124278#(<= main_x 104), 124281#(<= main_x 107), 124280#(<= main_x 106), 124283#(<= main_x 109), 124282#(<= main_x 108), 124285#(<= main_x 111), 124284#(<= main_x 110), 124287#(<= main_x 113), 124286#(<= main_x 112), 124289#(<= main_x 115), 124288#(<= main_x 114), 124291#(<= main_x 117), 124290#(<= main_x 116), 124293#(<= main_x 119), 124292#(<= main_x 118), 124295#(<= main_x 121), 124294#(<= main_x 120), 124297#(<= main_x 123), 124296#(<= main_x 122), 124299#(<= main_x 125), 124298#(<= main_x 124), 124301#(<= main_x 127), 124300#(<= main_x 126), 124303#(<= main_x 129), 124302#(<= main_x 128), 124305#(<= main_x 131), 124304#(<= main_x 130), 124307#(<= main_x 133), 124306#(<= main_x 132), 124309#(<= main_x 135), 124308#(<= main_x 134), 124311#(<= main_x 137), 124310#(<= main_x 136), 124313#(<= main_x 139), 124312#(<= main_x 138), 124315#(<= main_x 141), 124314#(<= main_x 140), 124317#(<= main_x 143), 124316#(<= main_x 142), 124319#(<= main_x 145), 124318#(<= main_x 144), 124321#(<= main_x 147), 124320#(<= main_x 146), 124323#(<= main_x 149), 124322#(<= main_x 148), 124325#(<= main_x 151), 124324#(<= main_x 150), 124327#(<= main_x 153), 124326#(<= main_x 152), 124329#(<= main_x 155), 124328#(<= main_x 154), 124331#(<= main_x 157), 124330#(<= main_x 156), 124333#(<= main_x 159), 124332#(<= main_x 158), 124335#(<= main_x 161), 124334#(<= main_x 160), 124337#(<= main_x 163), 124336#(<= main_x 162), 124339#(<= main_x 165), 124338#(<= main_x 164), 124341#(<= main_x 167), 124340#(<= main_x 166), 124343#(<= main_x 169), 124342#(<= main_x 168), 124345#(<= main_x 171), 124344#(<= main_x 170), 124347#(<= main_x 173), 124346#(<= main_x 172), 124349#(<= main_x 175), 124348#(<= main_x 174), 124351#(<= main_x 177), 124350#(<= main_x 176), 124353#(<= main_x 179), 124352#(<= main_x 178), 124355#(<= main_x 181), 124354#(<= main_x 180), 124357#(<= main_x 183), 124356#(<= main_x 182), 124359#(<= main_x 185), 124358#(<= main_x 184), 124361#(<= main_x 187), 124360#(<= main_x 186), 124363#(<= main_x 189), 124362#(<= main_x 188), 124365#(<= main_x 191), 124364#(<= main_x 190), 124367#(<= main_x 193), 124366#(<= main_x 192), 124369#(<= main_x 195), 124368#(<= main_x 194), 124371#(<= main_x 197), 124370#(<= main_x 196), 124373#(<= main_x 199), 124372#(<= main_x 198), 124375#(<= main_x 201), 124374#(<= main_x 200), 124377#(<= main_x 203), 124376#(<= main_x 202), 124379#(<= main_x 205), 124378#(<= main_x 204), 124381#(<= main_x 207), 124380#(<= main_x 206), 124383#(<= main_x 209), 124382#(<= main_x 208), 124385#(<= main_x 211), 124384#(<= main_x 210), 124387#(<= main_x 213), 124386#(<= main_x 212), 124389#(<= main_x 215), 124388#(<= main_x 214), 124391#(<= main_x 217), 124390#(<= main_x 216), 124392#(<= main_x 218)] [2018-07-23 13:57:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 23871 backedges. 0 proven. 23871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:33,784 INFO L450 AbstractCegarLoop]: Interpolant automaton has 221 states [2018-07-23 13:57:33,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 221 interpolants. [2018-07-23 13:57:33,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24310, Invalid=24310, Unknown=0, NotChecked=0, Total=48620 [2018-07-23 13:57:33,789 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand 221 states. [2018-07-23 13:57:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:35,737 INFO L93 Difference]: Finished difference Result 225 states and 225 transitions. [2018-07-23 13:57:35,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2018-07-23 13:57:35,737 INFO L78 Accepts]: Start accepts. Automaton has 221 states. Word has length 221 [2018-07-23 13:57:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:35,738 INFO L225 Difference]: With dead ends: 225 [2018-07-23 13:57:35,738 INFO L226 Difference]: Without dead ends: 223 [2018-07-23 13:57:35,741 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24310, Invalid=24310, Unknown=0, NotChecked=0, Total=48620 [2018-07-23 13:57:35,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-07-23 13:57:35,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-07-23 13:57:35,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-07-23 13:57:35,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2018-07-23 13:57:35,743 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 221 [2018-07-23 13:57:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:35,744 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2018-07-23 13:57:35,744 INFO L472 AbstractCegarLoop]: Interpolant automaton has 221 states. [2018-07-23 13:57:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2018-07-23 13:57:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-07-23 13:57:35,744 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:35,744 INFO L357 BasicCegarLoop]: trace histogram [219, 1, 1, 1] [2018-07-23 13:57:35,745 INFO L414 AbstractCegarLoop]: === Iteration 220 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:35,745 INFO L82 PathProgramCache]: Analyzing trace with hash -359450170, now seen corresponding path program 219 times [2018-07-23 13:57:35,745 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 24090 backedges. 0 proven. 24090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:37,174 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:37,174 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [221] total 221 [2018-07-23 13:57:37,174 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:37,175 INFO L185 omatonBuilderFactory]: Interpolants [125441#(<= main_x 150), 125440#(<= main_x 149), 125443#(<= main_x 152), 125442#(<= main_x 151), 125445#(<= main_x 154), 125444#(<= main_x 153), 125447#(<= main_x 156), 125446#(<= main_x 155), 125449#(<= main_x 158), 125448#(<= main_x 157), 125451#(<= main_x 160), 125450#(<= main_x 159), 125453#(<= main_x 162), 125452#(<= main_x 161), 125455#(<= main_x 164), 125454#(<= main_x 163), 125457#(<= main_x 166), 125456#(<= main_x 165), 125459#(<= main_x 168), 125458#(<= main_x 167), 125461#(<= main_x 170), 125460#(<= main_x 169), 125463#(<= main_x 172), 125462#(<= main_x 171), 125465#(<= main_x 174), 125464#(<= main_x 173), 125467#(<= main_x 176), 125466#(<= main_x 175), 125469#(<= main_x 178), 125468#(<= main_x 177), 125471#(<= main_x 180), 125470#(<= main_x 179), 125473#(<= main_x 182), 125472#(<= main_x 181), 125475#(<= main_x 184), 125474#(<= main_x 183), 125477#(<= main_x 186), 125476#(<= main_x 185), 125479#(<= main_x 188), 125478#(<= main_x 187), 125481#(<= main_x 190), 125480#(<= main_x 189), 125483#(<= main_x 192), 125482#(<= main_x 191), 125485#(<= main_x 194), 125484#(<= main_x 193), 125487#(<= main_x 196), 125486#(<= main_x 195), 125489#(<= main_x 198), 125488#(<= main_x 197), 125491#(<= main_x 200), 125490#(<= main_x 199), 125493#(<= main_x 202), 125492#(<= main_x 201), 125495#(<= main_x 204), 125494#(<= main_x 203), 125497#(<= main_x 206), 125496#(<= main_x 205), 125499#(<= main_x 208), 125498#(<= main_x 207), 125501#(<= main_x 210), 125500#(<= main_x 209), 125503#(<= main_x 212), 125502#(<= main_x 211), 125505#(<= main_x 214), 125504#(<= main_x 213), 125507#(<= main_x 216), 125506#(<= main_x 215), 125509#(<= main_x 218), 125508#(<= main_x 217), 125510#(<= main_x 219), 125289#true, 125291#(<= main_x 0), 125290#false, 125293#(<= main_x 2), 125292#(<= main_x 1), 125295#(<= main_x 4), 125294#(<= main_x 3), 125297#(<= main_x 6), 125296#(<= main_x 5), 125299#(<= main_x 8), 125298#(<= main_x 7), 125301#(<= main_x 10), 125300#(<= main_x 9), 125303#(<= main_x 12), 125302#(<= main_x 11), 125305#(<= main_x 14), 125304#(<= main_x 13), 125307#(<= main_x 16), 125306#(<= main_x 15), 125309#(<= main_x 18), 125308#(<= main_x 17), 125311#(<= main_x 20), 125310#(<= main_x 19), 125313#(<= main_x 22), 125312#(<= main_x 21), 125315#(<= main_x 24), 125314#(<= main_x 23), 125317#(<= main_x 26), 125316#(<= main_x 25), 125319#(<= main_x 28), 125318#(<= main_x 27), 125321#(<= main_x 30), 125320#(<= main_x 29), 125323#(<= main_x 32), 125322#(<= main_x 31), 125325#(<= main_x 34), 125324#(<= main_x 33), 125327#(<= main_x 36), 125326#(<= main_x 35), 125329#(<= main_x 38), 125328#(<= main_x 37), 125331#(<= main_x 40), 125330#(<= main_x 39), 125333#(<= main_x 42), 125332#(<= main_x 41), 125335#(<= main_x 44), 125334#(<= main_x 43), 125337#(<= main_x 46), 125336#(<= main_x 45), 125339#(<= main_x 48), 125338#(<= main_x 47), 125341#(<= main_x 50), 125340#(<= main_x 49), 125343#(<= main_x 52), 125342#(<= main_x 51), 125345#(<= main_x 54), 125344#(<= main_x 53), 125347#(<= main_x 56), 125346#(<= main_x 55), 125349#(<= main_x 58), 125348#(<= main_x 57), 125351#(<= main_x 60), 125350#(<= main_x 59), 125353#(<= main_x 62), 125352#(<= main_x 61), 125355#(<= main_x 64), 125354#(<= main_x 63), 125357#(<= main_x 66), 125356#(<= main_x 65), 125359#(<= main_x 68), 125358#(<= main_x 67), 125361#(<= main_x 70), 125360#(<= main_x 69), 125363#(<= main_x 72), 125362#(<= main_x 71), 125365#(<= main_x 74), 125364#(<= main_x 73), 125367#(<= main_x 76), 125366#(<= main_x 75), 125369#(<= main_x 78), 125368#(<= main_x 77), 125371#(<= main_x 80), 125370#(<= main_x 79), 125373#(<= main_x 82), 125372#(<= main_x 81), 125375#(<= main_x 84), 125374#(<= main_x 83), 125377#(<= main_x 86), 125376#(<= main_x 85), 125379#(<= main_x 88), 125378#(<= main_x 87), 125381#(<= main_x 90), 125380#(<= main_x 89), 125383#(<= main_x 92), 125382#(<= main_x 91), 125385#(<= main_x 94), 125384#(<= main_x 93), 125387#(<= main_x 96), 125386#(<= main_x 95), 125389#(<= main_x 98), 125388#(<= main_x 97), 125391#(<= main_x 100), 125390#(<= main_x 99), 125393#(<= main_x 102), 125392#(<= main_x 101), 125395#(<= main_x 104), 125394#(<= main_x 103), 125397#(<= main_x 106), 125396#(<= main_x 105), 125399#(<= main_x 108), 125398#(<= main_x 107), 125401#(<= main_x 110), 125400#(<= main_x 109), 125403#(<= main_x 112), 125402#(<= main_x 111), 125405#(<= main_x 114), 125404#(<= main_x 113), 125407#(<= main_x 116), 125406#(<= main_x 115), 125409#(<= main_x 118), 125408#(<= main_x 117), 125411#(<= main_x 120), 125410#(<= main_x 119), 125413#(<= main_x 122), 125412#(<= main_x 121), 125415#(<= main_x 124), 125414#(<= main_x 123), 125417#(<= main_x 126), 125416#(<= main_x 125), 125419#(<= main_x 128), 125418#(<= main_x 127), 125421#(<= main_x 130), 125420#(<= main_x 129), 125423#(<= main_x 132), 125422#(<= main_x 131), 125425#(<= main_x 134), 125424#(<= main_x 133), 125427#(<= main_x 136), 125426#(<= main_x 135), 125429#(<= main_x 138), 125428#(<= main_x 137), 125431#(<= main_x 140), 125430#(<= main_x 139), 125433#(<= main_x 142), 125432#(<= main_x 141), 125435#(<= main_x 144), 125434#(<= main_x 143), 125437#(<= main_x 146), 125436#(<= main_x 145), 125439#(<= main_x 148), 125438#(<= main_x 147)] [2018-07-23 13:57:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24090 backedges. 0 proven. 24090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:37,176 INFO L450 AbstractCegarLoop]: Interpolant automaton has 222 states [2018-07-23 13:57:37,179 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 222 interpolants. [2018-07-23 13:57:37,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24531, Invalid=24531, Unknown=0, NotChecked=0, Total=49062 [2018-07-23 13:57:37,181 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand 222 states. [2018-07-23 13:57:37,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:37,724 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2018-07-23 13:57:37,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2018-07-23 13:57:37,724 INFO L78 Accepts]: Start accepts. Automaton has 222 states. Word has length 222 [2018-07-23 13:57:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:37,724 INFO L225 Difference]: With dead ends: 226 [2018-07-23 13:57:37,724 INFO L226 Difference]: Without dead ends: 224 [2018-07-23 13:57:37,726 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24531, Invalid=24531, Unknown=0, NotChecked=0, Total=49062 [2018-07-23 13:57:37,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-07-23 13:57:37,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2018-07-23 13:57:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-07-23 13:57:37,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 224 transitions. [2018-07-23 13:57:37,730 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 224 transitions. Word has length 222 [2018-07-23 13:57:37,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:37,730 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 224 transitions. [2018-07-23 13:57:37,730 INFO L472 AbstractCegarLoop]: Interpolant automaton has 222 states. [2018-07-23 13:57:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 224 transitions. [2018-07-23 13:57:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-07-23 13:57:37,731 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:37,731 INFO L357 BasicCegarLoop]: trace histogram [220, 1, 1, 1] [2018-07-23 13:57:37,731 INFO L414 AbstractCegarLoop]: === Iteration 221 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:37,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1741942752, now seen corresponding path program 220 times [2018-07-23 13:57:37,732 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 24310 backedges. 0 proven. 24310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:39,153 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:39,153 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [222] total 222 [2018-07-23 13:57:39,153 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:39,154 INFO L185 omatonBuilderFactory]: Interpolants [126465#(<= main_x 52), 126464#(<= main_x 51), 126467#(<= main_x 54), 126466#(<= main_x 53), 126469#(<= main_x 56), 126468#(<= main_x 55), 126471#(<= main_x 58), 126470#(<= main_x 57), 126473#(<= main_x 60), 126472#(<= main_x 59), 126475#(<= main_x 62), 126474#(<= main_x 61), 126477#(<= main_x 64), 126476#(<= main_x 63), 126479#(<= main_x 66), 126478#(<= main_x 65), 126481#(<= main_x 68), 126480#(<= main_x 67), 126483#(<= main_x 70), 126482#(<= main_x 69), 126485#(<= main_x 72), 126484#(<= main_x 71), 126487#(<= main_x 74), 126486#(<= main_x 73), 126489#(<= main_x 76), 126488#(<= main_x 75), 126491#(<= main_x 78), 126490#(<= main_x 77), 126493#(<= main_x 80), 126492#(<= main_x 79), 126495#(<= main_x 82), 126494#(<= main_x 81), 126497#(<= main_x 84), 126496#(<= main_x 83), 126499#(<= main_x 86), 126498#(<= main_x 85), 126501#(<= main_x 88), 126500#(<= main_x 87), 126503#(<= main_x 90), 126502#(<= main_x 89), 126505#(<= main_x 92), 126504#(<= main_x 91), 126507#(<= main_x 94), 126506#(<= main_x 93), 126509#(<= main_x 96), 126508#(<= main_x 95), 126511#(<= main_x 98), 126510#(<= main_x 97), 126513#(<= main_x 100), 126512#(<= main_x 99), 126515#(<= main_x 102), 126514#(<= main_x 101), 126517#(<= main_x 104), 126516#(<= main_x 103), 126519#(<= main_x 106), 126518#(<= main_x 105), 126521#(<= main_x 108), 126520#(<= main_x 107), 126523#(<= main_x 110), 126522#(<= main_x 109), 126525#(<= main_x 112), 126524#(<= main_x 111), 126527#(<= main_x 114), 126526#(<= main_x 113), 126529#(<= main_x 116), 126528#(<= main_x 115), 126531#(<= main_x 118), 126530#(<= main_x 117), 126533#(<= main_x 120), 126532#(<= main_x 119), 126535#(<= main_x 122), 126534#(<= main_x 121), 126537#(<= main_x 124), 126536#(<= main_x 123), 126539#(<= main_x 126), 126538#(<= main_x 125), 126541#(<= main_x 128), 126540#(<= main_x 127), 126543#(<= main_x 130), 126542#(<= main_x 129), 126545#(<= main_x 132), 126544#(<= main_x 131), 126547#(<= main_x 134), 126546#(<= main_x 133), 126549#(<= main_x 136), 126548#(<= main_x 135), 126551#(<= main_x 138), 126550#(<= main_x 137), 126553#(<= main_x 140), 126552#(<= main_x 139), 126555#(<= main_x 142), 126554#(<= main_x 141), 126557#(<= main_x 144), 126556#(<= main_x 143), 126559#(<= main_x 146), 126558#(<= main_x 145), 126561#(<= main_x 148), 126560#(<= main_x 147), 126563#(<= main_x 150), 126562#(<= main_x 149), 126565#(<= main_x 152), 126564#(<= main_x 151), 126567#(<= main_x 154), 126566#(<= main_x 153), 126569#(<= main_x 156), 126568#(<= main_x 155), 126571#(<= main_x 158), 126570#(<= main_x 157), 126573#(<= main_x 160), 126572#(<= main_x 159), 126575#(<= main_x 162), 126574#(<= main_x 161), 126577#(<= main_x 164), 126576#(<= main_x 163), 126579#(<= main_x 166), 126578#(<= main_x 165), 126581#(<= main_x 168), 126580#(<= main_x 167), 126583#(<= main_x 170), 126582#(<= main_x 169), 126585#(<= main_x 172), 126584#(<= main_x 171), 126587#(<= main_x 174), 126586#(<= main_x 173), 126589#(<= main_x 176), 126588#(<= main_x 175), 126591#(<= main_x 178), 126590#(<= main_x 177), 126593#(<= main_x 180), 126592#(<= main_x 179), 126595#(<= main_x 182), 126594#(<= main_x 181), 126597#(<= main_x 184), 126596#(<= main_x 183), 126599#(<= main_x 186), 126598#(<= main_x 185), 126601#(<= main_x 188), 126600#(<= main_x 187), 126603#(<= main_x 190), 126602#(<= main_x 189), 126605#(<= main_x 192), 126604#(<= main_x 191), 126607#(<= main_x 194), 126606#(<= main_x 193), 126609#(<= main_x 196), 126608#(<= main_x 195), 126611#(<= main_x 198), 126610#(<= main_x 197), 126613#(<= main_x 200), 126612#(<= main_x 199), 126615#(<= main_x 202), 126614#(<= main_x 201), 126617#(<= main_x 204), 126616#(<= main_x 203), 126619#(<= main_x 206), 126618#(<= main_x 205), 126621#(<= main_x 208), 126620#(<= main_x 207), 126623#(<= main_x 210), 126622#(<= main_x 209), 126625#(<= main_x 212), 126624#(<= main_x 211), 126627#(<= main_x 214), 126626#(<= main_x 213), 126629#(<= main_x 216), 126628#(<= main_x 215), 126631#(<= main_x 218), 126630#(<= main_x 217), 126633#(<= main_x 220), 126632#(<= main_x 219), 126411#true, 126413#(<= main_x 0), 126412#false, 126415#(<= main_x 2), 126414#(<= main_x 1), 126417#(<= main_x 4), 126416#(<= main_x 3), 126419#(<= main_x 6), 126418#(<= main_x 5), 126421#(<= main_x 8), 126420#(<= main_x 7), 126423#(<= main_x 10), 126422#(<= main_x 9), 126425#(<= main_x 12), 126424#(<= main_x 11), 126427#(<= main_x 14), 126426#(<= main_x 13), 126429#(<= main_x 16), 126428#(<= main_x 15), 126431#(<= main_x 18), 126430#(<= main_x 17), 126433#(<= main_x 20), 126432#(<= main_x 19), 126435#(<= main_x 22), 126434#(<= main_x 21), 126437#(<= main_x 24), 126436#(<= main_x 23), 126439#(<= main_x 26), 126438#(<= main_x 25), 126441#(<= main_x 28), 126440#(<= main_x 27), 126443#(<= main_x 30), 126442#(<= main_x 29), 126445#(<= main_x 32), 126444#(<= main_x 31), 126447#(<= main_x 34), 126446#(<= main_x 33), 126449#(<= main_x 36), 126448#(<= main_x 35), 126451#(<= main_x 38), 126450#(<= main_x 37), 126453#(<= main_x 40), 126452#(<= main_x 39), 126455#(<= main_x 42), 126454#(<= main_x 41), 126457#(<= main_x 44), 126456#(<= main_x 43), 126459#(<= main_x 46), 126458#(<= main_x 45), 126461#(<= main_x 48), 126460#(<= main_x 47), 126463#(<= main_x 50), 126462#(<= main_x 49)] [2018-07-23 13:57:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 24310 backedges. 0 proven. 24310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:39,155 INFO L450 AbstractCegarLoop]: Interpolant automaton has 223 states [2018-07-23 13:57:39,158 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 223 interpolants. [2018-07-23 13:57:39,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24753, Invalid=24753, Unknown=0, NotChecked=0, Total=49506 [2018-07-23 13:57:39,160 INFO L87 Difference]: Start difference. First operand 224 states and 224 transitions. Second operand 223 states. [2018-07-23 13:57:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:40,112 INFO L93 Difference]: Finished difference Result 227 states and 227 transitions. [2018-07-23 13:57:40,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2018-07-23 13:57:40,112 INFO L78 Accepts]: Start accepts. Automaton has 223 states. Word has length 223 [2018-07-23 13:57:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:40,112 INFO L225 Difference]: With dead ends: 227 [2018-07-23 13:57:40,112 INFO L226 Difference]: Without dead ends: 225 [2018-07-23 13:57:40,114 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=24753, Invalid=24753, Unknown=0, NotChecked=0, Total=49506 [2018-07-23 13:57:40,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-07-23 13:57:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2018-07-23 13:57:40,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-07-23 13:57:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 225 transitions. [2018-07-23 13:57:40,117 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 225 transitions. Word has length 223 [2018-07-23 13:57:40,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:40,117 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 225 transitions. [2018-07-23 13:57:40,117 INFO L472 AbstractCegarLoop]: Interpolant automaton has 223 states. [2018-07-23 13:57:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 225 transitions. [2018-07-23 13:57:40,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-07-23 13:57:40,117 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:40,118 INFO L357 BasicCegarLoop]: trace histogram [221, 1, 1, 1] [2018-07-23 13:57:40,118 INFO L414 AbstractCegarLoop]: === Iteration 222 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:40,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1834353402, now seen corresponding path program 221 times [2018-07-23 13:57:40,118 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 24531 backedges. 0 proven. 24531 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:41,476 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:41,476 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [223] total 223 [2018-07-23 13:57:41,476 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:41,476 INFO L185 omatonBuilderFactory]: Interpolants [127539#false, 127538#true, 127541#(<= main_x 1), 127540#(<= main_x 0), 127543#(<= main_x 3), 127542#(<= main_x 2), 127545#(<= main_x 5), 127544#(<= main_x 4), 127547#(<= main_x 7), 127546#(<= main_x 6), 127549#(<= main_x 9), 127548#(<= main_x 8), 127551#(<= main_x 11), 127550#(<= main_x 10), 127553#(<= main_x 13), 127552#(<= main_x 12), 127555#(<= main_x 15), 127554#(<= main_x 14), 127557#(<= main_x 17), 127556#(<= main_x 16), 127559#(<= main_x 19), 127558#(<= main_x 18), 127561#(<= main_x 21), 127560#(<= main_x 20), 127563#(<= main_x 23), 127562#(<= main_x 22), 127565#(<= main_x 25), 127564#(<= main_x 24), 127567#(<= main_x 27), 127566#(<= main_x 26), 127569#(<= main_x 29), 127568#(<= main_x 28), 127571#(<= main_x 31), 127570#(<= main_x 30), 127573#(<= main_x 33), 127572#(<= main_x 32), 127575#(<= main_x 35), 127574#(<= main_x 34), 127577#(<= main_x 37), 127576#(<= main_x 36), 127579#(<= main_x 39), 127578#(<= main_x 38), 127581#(<= main_x 41), 127580#(<= main_x 40), 127583#(<= main_x 43), 127582#(<= main_x 42), 127585#(<= main_x 45), 127584#(<= main_x 44), 127587#(<= main_x 47), 127586#(<= main_x 46), 127589#(<= main_x 49), 127588#(<= main_x 48), 127591#(<= main_x 51), 127590#(<= main_x 50), 127593#(<= main_x 53), 127592#(<= main_x 52), 127595#(<= main_x 55), 127594#(<= main_x 54), 127597#(<= main_x 57), 127596#(<= main_x 56), 127599#(<= main_x 59), 127598#(<= main_x 58), 127601#(<= main_x 61), 127600#(<= main_x 60), 127603#(<= main_x 63), 127602#(<= main_x 62), 127605#(<= main_x 65), 127604#(<= main_x 64), 127607#(<= main_x 67), 127606#(<= main_x 66), 127609#(<= main_x 69), 127608#(<= main_x 68), 127611#(<= main_x 71), 127610#(<= main_x 70), 127613#(<= main_x 73), 127612#(<= main_x 72), 127615#(<= main_x 75), 127614#(<= main_x 74), 127617#(<= main_x 77), 127616#(<= main_x 76), 127619#(<= main_x 79), 127618#(<= main_x 78), 127621#(<= main_x 81), 127620#(<= main_x 80), 127623#(<= main_x 83), 127622#(<= main_x 82), 127625#(<= main_x 85), 127624#(<= main_x 84), 127627#(<= main_x 87), 127626#(<= main_x 86), 127629#(<= main_x 89), 127628#(<= main_x 88), 127631#(<= main_x 91), 127630#(<= main_x 90), 127633#(<= main_x 93), 127632#(<= main_x 92), 127635#(<= main_x 95), 127634#(<= main_x 94), 127637#(<= main_x 97), 127636#(<= main_x 96), 127639#(<= main_x 99), 127638#(<= main_x 98), 127641#(<= main_x 101), 127640#(<= main_x 100), 127643#(<= main_x 103), 127642#(<= main_x 102), 127645#(<= main_x 105), 127644#(<= main_x 104), 127647#(<= main_x 107), 127646#(<= main_x 106), 127649#(<= main_x 109), 127648#(<= main_x 108), 127651#(<= main_x 111), 127650#(<= main_x 110), 127653#(<= main_x 113), 127652#(<= main_x 112), 127655#(<= main_x 115), 127654#(<= main_x 114), 127657#(<= main_x 117), 127656#(<= main_x 116), 127659#(<= main_x 119), 127658#(<= main_x 118), 127661#(<= main_x 121), 127660#(<= main_x 120), 127663#(<= main_x 123), 127662#(<= main_x 122), 127665#(<= main_x 125), 127664#(<= main_x 124), 127667#(<= main_x 127), 127666#(<= main_x 126), 127669#(<= main_x 129), 127668#(<= main_x 128), 127671#(<= main_x 131), 127670#(<= main_x 130), 127673#(<= main_x 133), 127672#(<= main_x 132), 127675#(<= main_x 135), 127674#(<= main_x 134), 127677#(<= main_x 137), 127676#(<= main_x 136), 127679#(<= main_x 139), 127678#(<= main_x 138), 127681#(<= main_x 141), 127680#(<= main_x 140), 127683#(<= main_x 143), 127682#(<= main_x 142), 127685#(<= main_x 145), 127684#(<= main_x 144), 127687#(<= main_x 147), 127686#(<= main_x 146), 127689#(<= main_x 149), 127688#(<= main_x 148), 127691#(<= main_x 151), 127690#(<= main_x 150), 127693#(<= main_x 153), 127692#(<= main_x 152), 127695#(<= main_x 155), 127694#(<= main_x 154), 127697#(<= main_x 157), 127696#(<= main_x 156), 127699#(<= main_x 159), 127698#(<= main_x 158), 127701#(<= main_x 161), 127700#(<= main_x 160), 127703#(<= main_x 163), 127702#(<= main_x 162), 127705#(<= main_x 165), 127704#(<= main_x 164), 127707#(<= main_x 167), 127706#(<= main_x 166), 127709#(<= main_x 169), 127708#(<= main_x 168), 127711#(<= main_x 171), 127710#(<= main_x 170), 127713#(<= main_x 173), 127712#(<= main_x 172), 127715#(<= main_x 175), 127714#(<= main_x 174), 127717#(<= main_x 177), 127716#(<= main_x 176), 127719#(<= main_x 179), 127718#(<= main_x 178), 127721#(<= main_x 181), 127720#(<= main_x 180), 127723#(<= main_x 183), 127722#(<= main_x 182), 127725#(<= main_x 185), 127724#(<= main_x 184), 127727#(<= main_x 187), 127726#(<= main_x 186), 127729#(<= main_x 189), 127728#(<= main_x 188), 127731#(<= main_x 191), 127730#(<= main_x 190), 127733#(<= main_x 193), 127732#(<= main_x 192), 127735#(<= main_x 195), 127734#(<= main_x 194), 127737#(<= main_x 197), 127736#(<= main_x 196), 127739#(<= main_x 199), 127738#(<= main_x 198), 127741#(<= main_x 201), 127740#(<= main_x 200), 127743#(<= main_x 203), 127742#(<= main_x 202), 127745#(<= main_x 205), 127744#(<= main_x 204), 127747#(<= main_x 207), 127746#(<= main_x 206), 127749#(<= main_x 209), 127748#(<= main_x 208), 127751#(<= main_x 211), 127750#(<= main_x 210), 127753#(<= main_x 213), 127752#(<= main_x 212), 127755#(<= main_x 215), 127754#(<= main_x 214), 127757#(<= main_x 217), 127756#(<= main_x 216), 127759#(<= main_x 219), 127758#(<= main_x 218), 127761#(<= main_x 221), 127760#(<= main_x 220)] [2018-07-23 13:57:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 24531 backedges. 0 proven. 24531 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:41,477 INFO L450 AbstractCegarLoop]: Interpolant automaton has 224 states [2018-07-23 13:57:41,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 224 interpolants. [2018-07-23 13:57:41,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24976, Invalid=24976, Unknown=0, NotChecked=0, Total=49952 [2018-07-23 13:57:41,482 INFO L87 Difference]: Start difference. First operand 225 states and 225 transitions. Second operand 224 states. [2018-07-23 13:57:42,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:42,885 INFO L93 Difference]: Finished difference Result 228 states and 228 transitions. [2018-07-23 13:57:42,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2018-07-23 13:57:42,886 INFO L78 Accepts]: Start accepts. Automaton has 224 states. Word has length 224 [2018-07-23 13:57:42,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:42,886 INFO L225 Difference]: With dead ends: 228 [2018-07-23 13:57:42,886 INFO L226 Difference]: Without dead ends: 226 [2018-07-23 13:57:42,888 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=24976, Invalid=24976, Unknown=0, NotChecked=0, Total=49952 [2018-07-23 13:57:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-07-23 13:57:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2018-07-23 13:57:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-07-23 13:57:42,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 226 transitions. [2018-07-23 13:57:42,890 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 226 transitions. Word has length 224 [2018-07-23 13:57:42,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:42,890 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 226 transitions. [2018-07-23 13:57:42,891 INFO L472 AbstractCegarLoop]: Interpolant automaton has 224 states. [2018-07-23 13:57:42,891 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 226 transitions. [2018-07-23 13:57:42,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-07-23 13:57:42,891 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:42,891 INFO L357 BasicCegarLoop]: trace histogram [222, 1, 1, 1] [2018-07-23 13:57:42,891 INFO L414 AbstractCegarLoop]: === Iteration 223 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:42,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1030384480, now seen corresponding path program 222 times [2018-07-23 13:57:42,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 24753 backedges. 0 proven. 24753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:44,232 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:44,232 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [224] total 224 [2018-07-23 13:57:44,232 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:44,233 INFO L185 omatonBuilderFactory]: Interpolants [128671#false, 128670#true, 128673#(<= main_x 1), 128672#(<= main_x 0), 128675#(<= main_x 3), 128674#(<= main_x 2), 128677#(<= main_x 5), 128676#(<= main_x 4), 128679#(<= main_x 7), 128678#(<= main_x 6), 128681#(<= main_x 9), 128680#(<= main_x 8), 128683#(<= main_x 11), 128682#(<= main_x 10), 128685#(<= main_x 13), 128684#(<= main_x 12), 128687#(<= main_x 15), 128686#(<= main_x 14), 128689#(<= main_x 17), 128688#(<= main_x 16), 128691#(<= main_x 19), 128690#(<= main_x 18), 128693#(<= main_x 21), 128692#(<= main_x 20), 128695#(<= main_x 23), 128694#(<= main_x 22), 128697#(<= main_x 25), 128696#(<= main_x 24), 128699#(<= main_x 27), 128698#(<= main_x 26), 128701#(<= main_x 29), 128700#(<= main_x 28), 128703#(<= main_x 31), 128702#(<= main_x 30), 128705#(<= main_x 33), 128704#(<= main_x 32), 128707#(<= main_x 35), 128706#(<= main_x 34), 128709#(<= main_x 37), 128708#(<= main_x 36), 128711#(<= main_x 39), 128710#(<= main_x 38), 128713#(<= main_x 41), 128712#(<= main_x 40), 128715#(<= main_x 43), 128714#(<= main_x 42), 128717#(<= main_x 45), 128716#(<= main_x 44), 128719#(<= main_x 47), 128718#(<= main_x 46), 128721#(<= main_x 49), 128720#(<= main_x 48), 128723#(<= main_x 51), 128722#(<= main_x 50), 128725#(<= main_x 53), 128724#(<= main_x 52), 128727#(<= main_x 55), 128726#(<= main_x 54), 128729#(<= main_x 57), 128728#(<= main_x 56), 128731#(<= main_x 59), 128730#(<= main_x 58), 128733#(<= main_x 61), 128732#(<= main_x 60), 128735#(<= main_x 63), 128734#(<= main_x 62), 128737#(<= main_x 65), 128736#(<= main_x 64), 128739#(<= main_x 67), 128738#(<= main_x 66), 128741#(<= main_x 69), 128740#(<= main_x 68), 128743#(<= main_x 71), 128742#(<= main_x 70), 128745#(<= main_x 73), 128744#(<= main_x 72), 128747#(<= main_x 75), 128746#(<= main_x 74), 128749#(<= main_x 77), 128748#(<= main_x 76), 128751#(<= main_x 79), 128750#(<= main_x 78), 128753#(<= main_x 81), 128752#(<= main_x 80), 128755#(<= main_x 83), 128754#(<= main_x 82), 128757#(<= main_x 85), 128756#(<= main_x 84), 128759#(<= main_x 87), 128758#(<= main_x 86), 128761#(<= main_x 89), 128760#(<= main_x 88), 128763#(<= main_x 91), 128762#(<= main_x 90), 128765#(<= main_x 93), 128764#(<= main_x 92), 128767#(<= main_x 95), 128766#(<= main_x 94), 128769#(<= main_x 97), 128768#(<= main_x 96), 128771#(<= main_x 99), 128770#(<= main_x 98), 128773#(<= main_x 101), 128772#(<= main_x 100), 128775#(<= main_x 103), 128774#(<= main_x 102), 128777#(<= main_x 105), 128776#(<= main_x 104), 128779#(<= main_x 107), 128778#(<= main_x 106), 128781#(<= main_x 109), 128780#(<= main_x 108), 128783#(<= main_x 111), 128782#(<= main_x 110), 128785#(<= main_x 113), 128784#(<= main_x 112), 128787#(<= main_x 115), 128786#(<= main_x 114), 128789#(<= main_x 117), 128788#(<= main_x 116), 128791#(<= main_x 119), 128790#(<= main_x 118), 128793#(<= main_x 121), 128792#(<= main_x 120), 128795#(<= main_x 123), 128794#(<= main_x 122), 128797#(<= main_x 125), 128796#(<= main_x 124), 128799#(<= main_x 127), 128798#(<= main_x 126), 128801#(<= main_x 129), 128800#(<= main_x 128), 128803#(<= main_x 131), 128802#(<= main_x 130), 128805#(<= main_x 133), 128804#(<= main_x 132), 128807#(<= main_x 135), 128806#(<= main_x 134), 128809#(<= main_x 137), 128808#(<= main_x 136), 128811#(<= main_x 139), 128810#(<= main_x 138), 128813#(<= main_x 141), 128812#(<= main_x 140), 128815#(<= main_x 143), 128814#(<= main_x 142), 128817#(<= main_x 145), 128816#(<= main_x 144), 128819#(<= main_x 147), 128818#(<= main_x 146), 128821#(<= main_x 149), 128820#(<= main_x 148), 128823#(<= main_x 151), 128822#(<= main_x 150), 128825#(<= main_x 153), 128824#(<= main_x 152), 128827#(<= main_x 155), 128826#(<= main_x 154), 128829#(<= main_x 157), 128828#(<= main_x 156), 128831#(<= main_x 159), 128830#(<= main_x 158), 128833#(<= main_x 161), 128832#(<= main_x 160), 128835#(<= main_x 163), 128834#(<= main_x 162), 128837#(<= main_x 165), 128836#(<= main_x 164), 128839#(<= main_x 167), 128838#(<= main_x 166), 128841#(<= main_x 169), 128840#(<= main_x 168), 128843#(<= main_x 171), 128842#(<= main_x 170), 128845#(<= main_x 173), 128844#(<= main_x 172), 128847#(<= main_x 175), 128846#(<= main_x 174), 128849#(<= main_x 177), 128848#(<= main_x 176), 128851#(<= main_x 179), 128850#(<= main_x 178), 128853#(<= main_x 181), 128852#(<= main_x 180), 128855#(<= main_x 183), 128854#(<= main_x 182), 128857#(<= main_x 185), 128856#(<= main_x 184), 128859#(<= main_x 187), 128858#(<= main_x 186), 128861#(<= main_x 189), 128860#(<= main_x 188), 128863#(<= main_x 191), 128862#(<= main_x 190), 128865#(<= main_x 193), 128864#(<= main_x 192), 128867#(<= main_x 195), 128866#(<= main_x 194), 128869#(<= main_x 197), 128868#(<= main_x 196), 128871#(<= main_x 199), 128870#(<= main_x 198), 128873#(<= main_x 201), 128872#(<= main_x 200), 128875#(<= main_x 203), 128874#(<= main_x 202), 128877#(<= main_x 205), 128876#(<= main_x 204), 128879#(<= main_x 207), 128878#(<= main_x 206), 128881#(<= main_x 209), 128880#(<= main_x 208), 128883#(<= main_x 211), 128882#(<= main_x 210), 128885#(<= main_x 213), 128884#(<= main_x 212), 128887#(<= main_x 215), 128886#(<= main_x 214), 128889#(<= main_x 217), 128888#(<= main_x 216), 128891#(<= main_x 219), 128890#(<= main_x 218), 128893#(<= main_x 221), 128892#(<= main_x 220), 128894#(<= main_x 222)] [2018-07-23 13:57:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 24753 backedges. 0 proven. 24753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:44,234 INFO L450 AbstractCegarLoop]: Interpolant automaton has 225 states [2018-07-23 13:57:44,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 225 interpolants. [2018-07-23 13:57:44,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25200, Invalid=25200, Unknown=0, NotChecked=0, Total=50400 [2018-07-23 13:57:44,239 INFO L87 Difference]: Start difference. First operand 226 states and 226 transitions. Second operand 225 states. [2018-07-23 13:57:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:45,110 INFO L93 Difference]: Finished difference Result 229 states and 229 transitions. [2018-07-23 13:57:45,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2018-07-23 13:57:45,110 INFO L78 Accepts]: Start accepts. Automaton has 225 states. Word has length 225 [2018-07-23 13:57:45,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:45,111 INFO L225 Difference]: With dead ends: 229 [2018-07-23 13:57:45,111 INFO L226 Difference]: Without dead ends: 227 [2018-07-23 13:57:45,113 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25200, Invalid=25200, Unknown=0, NotChecked=0, Total=50400 [2018-07-23 13:57:45,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-07-23 13:57:45,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2018-07-23 13:57:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-07-23 13:57:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 227 transitions. [2018-07-23 13:57:45,115 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 227 transitions. Word has length 225 [2018-07-23 13:57:45,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:45,115 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 227 transitions. [2018-07-23 13:57:45,115 INFO L472 AbstractCegarLoop]: Interpolant automaton has 225 states. [2018-07-23 13:57:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 227 transitions. [2018-07-23 13:57:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-07-23 13:57:45,116 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:45,116 INFO L357 BasicCegarLoop]: trace histogram [223, 1, 1, 1] [2018-07-23 13:57:45,116 INFO L414 AbstractCegarLoop]: === Iteration 224 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:45,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1877151674, now seen corresponding path program 223 times [2018-07-23 13:57:45,116 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 24976 backedges. 0 proven. 24976 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:46,391 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:46,391 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [225] total 225 [2018-07-23 13:57:46,391 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:46,391 INFO L185 omatonBuilderFactory]: Interpolants [129807#true, 129809#(<= main_x 0), 129808#false, 129811#(<= main_x 2), 129810#(<= main_x 1), 129813#(<= main_x 4), 129812#(<= main_x 3), 129815#(<= main_x 6), 129814#(<= main_x 5), 129817#(<= main_x 8), 129816#(<= main_x 7), 129819#(<= main_x 10), 129818#(<= main_x 9), 129821#(<= main_x 12), 129820#(<= main_x 11), 129823#(<= main_x 14), 129822#(<= main_x 13), 129825#(<= main_x 16), 129824#(<= main_x 15), 129827#(<= main_x 18), 129826#(<= main_x 17), 129829#(<= main_x 20), 129828#(<= main_x 19), 129831#(<= main_x 22), 129830#(<= main_x 21), 129833#(<= main_x 24), 129832#(<= main_x 23), 129835#(<= main_x 26), 129834#(<= main_x 25), 129837#(<= main_x 28), 129836#(<= main_x 27), 129839#(<= main_x 30), 129838#(<= main_x 29), 129841#(<= main_x 32), 129840#(<= main_x 31), 129843#(<= main_x 34), 129842#(<= main_x 33), 129845#(<= main_x 36), 129844#(<= main_x 35), 129847#(<= main_x 38), 129846#(<= main_x 37), 129849#(<= main_x 40), 129848#(<= main_x 39), 129851#(<= main_x 42), 129850#(<= main_x 41), 129853#(<= main_x 44), 129852#(<= main_x 43), 129855#(<= main_x 46), 129854#(<= main_x 45), 129857#(<= main_x 48), 129856#(<= main_x 47), 129859#(<= main_x 50), 129858#(<= main_x 49), 129861#(<= main_x 52), 129860#(<= main_x 51), 129863#(<= main_x 54), 129862#(<= main_x 53), 129865#(<= main_x 56), 129864#(<= main_x 55), 129867#(<= main_x 58), 129866#(<= main_x 57), 129869#(<= main_x 60), 129868#(<= main_x 59), 129871#(<= main_x 62), 129870#(<= main_x 61), 129873#(<= main_x 64), 129872#(<= main_x 63), 129875#(<= main_x 66), 129874#(<= main_x 65), 129877#(<= main_x 68), 129876#(<= main_x 67), 129879#(<= main_x 70), 129878#(<= main_x 69), 129881#(<= main_x 72), 129880#(<= main_x 71), 129883#(<= main_x 74), 129882#(<= main_x 73), 129885#(<= main_x 76), 129884#(<= main_x 75), 129887#(<= main_x 78), 129886#(<= main_x 77), 129889#(<= main_x 80), 129888#(<= main_x 79), 129891#(<= main_x 82), 129890#(<= main_x 81), 129893#(<= main_x 84), 129892#(<= main_x 83), 129895#(<= main_x 86), 129894#(<= main_x 85), 129897#(<= main_x 88), 129896#(<= main_x 87), 129899#(<= main_x 90), 129898#(<= main_x 89), 129901#(<= main_x 92), 129900#(<= main_x 91), 129903#(<= main_x 94), 129902#(<= main_x 93), 129905#(<= main_x 96), 129904#(<= main_x 95), 129907#(<= main_x 98), 129906#(<= main_x 97), 129909#(<= main_x 100), 129908#(<= main_x 99), 129911#(<= main_x 102), 129910#(<= main_x 101), 129913#(<= main_x 104), 129912#(<= main_x 103), 129915#(<= main_x 106), 129914#(<= main_x 105), 129917#(<= main_x 108), 129916#(<= main_x 107), 129919#(<= main_x 110), 129918#(<= main_x 109), 129921#(<= main_x 112), 129920#(<= main_x 111), 129923#(<= main_x 114), 129922#(<= main_x 113), 129925#(<= main_x 116), 129924#(<= main_x 115), 129927#(<= main_x 118), 129926#(<= main_x 117), 129929#(<= main_x 120), 129928#(<= main_x 119), 129931#(<= main_x 122), 129930#(<= main_x 121), 129933#(<= main_x 124), 129932#(<= main_x 123), 129935#(<= main_x 126), 129934#(<= main_x 125), 129937#(<= main_x 128), 129936#(<= main_x 127), 129939#(<= main_x 130), 129938#(<= main_x 129), 129941#(<= main_x 132), 129940#(<= main_x 131), 129943#(<= main_x 134), 129942#(<= main_x 133), 129945#(<= main_x 136), 129944#(<= main_x 135), 129947#(<= main_x 138), 129946#(<= main_x 137), 129949#(<= main_x 140), 129948#(<= main_x 139), 129951#(<= main_x 142), 129950#(<= main_x 141), 129953#(<= main_x 144), 129952#(<= main_x 143), 129955#(<= main_x 146), 129954#(<= main_x 145), 129957#(<= main_x 148), 129956#(<= main_x 147), 129959#(<= main_x 150), 129958#(<= main_x 149), 129961#(<= main_x 152), 129960#(<= main_x 151), 129963#(<= main_x 154), 129962#(<= main_x 153), 129965#(<= main_x 156), 129964#(<= main_x 155), 129967#(<= main_x 158), 129966#(<= main_x 157), 129969#(<= main_x 160), 129968#(<= main_x 159), 129971#(<= main_x 162), 129970#(<= main_x 161), 129973#(<= main_x 164), 129972#(<= main_x 163), 129975#(<= main_x 166), 129974#(<= main_x 165), 129977#(<= main_x 168), 129976#(<= main_x 167), 129979#(<= main_x 170), 129978#(<= main_x 169), 129981#(<= main_x 172), 129980#(<= main_x 171), 129983#(<= main_x 174), 129982#(<= main_x 173), 129985#(<= main_x 176), 129984#(<= main_x 175), 129987#(<= main_x 178), 129986#(<= main_x 177), 129989#(<= main_x 180), 129988#(<= main_x 179), 129991#(<= main_x 182), 129990#(<= main_x 181), 129993#(<= main_x 184), 129992#(<= main_x 183), 129995#(<= main_x 186), 129994#(<= main_x 185), 129997#(<= main_x 188), 129996#(<= main_x 187), 129999#(<= main_x 190), 129998#(<= main_x 189), 130001#(<= main_x 192), 130000#(<= main_x 191), 130003#(<= main_x 194), 130002#(<= main_x 193), 130005#(<= main_x 196), 130004#(<= main_x 195), 130007#(<= main_x 198), 130006#(<= main_x 197), 130009#(<= main_x 200), 130008#(<= main_x 199), 130011#(<= main_x 202), 130010#(<= main_x 201), 130013#(<= main_x 204), 130012#(<= main_x 203), 130015#(<= main_x 206), 130014#(<= main_x 205), 130017#(<= main_x 208), 130016#(<= main_x 207), 130019#(<= main_x 210), 130018#(<= main_x 209), 130021#(<= main_x 212), 130020#(<= main_x 211), 130023#(<= main_x 214), 130022#(<= main_x 213), 130025#(<= main_x 216), 130024#(<= main_x 215), 130027#(<= main_x 218), 130026#(<= main_x 217), 130029#(<= main_x 220), 130028#(<= main_x 219), 130031#(<= main_x 222), 130030#(<= main_x 221), 130032#(<= main_x 223)] [2018-07-23 13:57:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24976 backedges. 0 proven. 24976 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:46,393 INFO L450 AbstractCegarLoop]: Interpolant automaton has 226 states [2018-07-23 13:57:46,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2018-07-23 13:57:46,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25425, Invalid=25425, Unknown=0, NotChecked=0, Total=50850 [2018-07-23 13:57:46,397 INFO L87 Difference]: Start difference. First operand 227 states and 227 transitions. Second operand 226 states. [2018-07-23 13:57:47,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:47,963 INFO L93 Difference]: Finished difference Result 230 states and 230 transitions. [2018-07-23 13:57:47,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2018-07-23 13:57:47,963 INFO L78 Accepts]: Start accepts. Automaton has 226 states. Word has length 226 [2018-07-23 13:57:47,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:47,963 INFO L225 Difference]: With dead ends: 230 [2018-07-23 13:57:47,963 INFO L226 Difference]: Without dead ends: 228 [2018-07-23 13:57:47,965 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25425, Invalid=25425, Unknown=0, NotChecked=0, Total=50850 [2018-07-23 13:57:47,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-07-23 13:57:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2018-07-23 13:57:47,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-07-23 13:57:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 228 transitions. [2018-07-23 13:57:47,968 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 228 transitions. Word has length 226 [2018-07-23 13:57:47,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:47,968 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 228 transitions. [2018-07-23 13:57:47,968 INFO L472 AbstractCegarLoop]: Interpolant automaton has 226 states. [2018-07-23 13:57:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 228 transitions. [2018-07-23 13:57:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-07-23 13:57:47,969 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:47,969 INFO L357 BasicCegarLoop]: trace histogram [224, 1, 1, 1] [2018-07-23 13:57:47,969 INFO L414 AbstractCegarLoop]: === Iteration 225 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:47,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1937836384, now seen corresponding path program 224 times [2018-07-23 13:57:47,969 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 25200 backedges. 0 proven. 25200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:49,346 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:49,346 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [226] total 226 [2018-07-23 13:57:49,346 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:49,346 INFO L185 omatonBuilderFactory]: Interpolants [131074#(<= main_x 123), 131075#(<= main_x 124), 131072#(<= main_x 121), 131073#(<= main_x 122), 131078#(<= main_x 127), 131079#(<= main_x 128), 131076#(<= main_x 125), 131077#(<= main_x 126), 131082#(<= main_x 131), 131083#(<= main_x 132), 131080#(<= main_x 129), 131081#(<= main_x 130), 131086#(<= main_x 135), 131087#(<= main_x 136), 131084#(<= main_x 133), 131085#(<= main_x 134), 131090#(<= main_x 139), 131091#(<= main_x 140), 131088#(<= main_x 137), 131089#(<= main_x 138), 131094#(<= main_x 143), 131095#(<= main_x 144), 131092#(<= main_x 141), 131093#(<= main_x 142), 131098#(<= main_x 147), 131099#(<= main_x 148), 131096#(<= main_x 145), 131097#(<= main_x 146), 131102#(<= main_x 151), 131103#(<= main_x 152), 131100#(<= main_x 149), 131101#(<= main_x 150), 131106#(<= main_x 155), 131107#(<= main_x 156), 131104#(<= main_x 153), 131105#(<= main_x 154), 131110#(<= main_x 159), 131111#(<= main_x 160), 131108#(<= main_x 157), 131109#(<= main_x 158), 131114#(<= main_x 163), 131115#(<= main_x 164), 131112#(<= main_x 161), 131113#(<= main_x 162), 131118#(<= main_x 167), 131119#(<= main_x 168), 131116#(<= main_x 165), 131117#(<= main_x 166), 131122#(<= main_x 171), 131123#(<= main_x 172), 131120#(<= main_x 169), 131121#(<= main_x 170), 131126#(<= main_x 175), 131127#(<= main_x 176), 131124#(<= main_x 173), 131125#(<= main_x 174), 131130#(<= main_x 179), 131131#(<= main_x 180), 131128#(<= main_x 177), 131129#(<= main_x 178), 131134#(<= main_x 183), 131135#(<= main_x 184), 131132#(<= main_x 181), 131133#(<= main_x 182), 131138#(<= main_x 187), 131139#(<= main_x 188), 131136#(<= main_x 185), 131137#(<= main_x 186), 131142#(<= main_x 191), 131143#(<= main_x 192), 131140#(<= main_x 189), 131141#(<= main_x 190), 131146#(<= main_x 195), 131147#(<= main_x 196), 131144#(<= main_x 193), 131145#(<= main_x 194), 131150#(<= main_x 199), 131151#(<= main_x 200), 131148#(<= main_x 197), 131149#(<= main_x 198), 131154#(<= main_x 203), 131155#(<= main_x 204), 131152#(<= main_x 201), 131153#(<= main_x 202), 131158#(<= main_x 207), 131159#(<= main_x 208), 131156#(<= main_x 205), 131157#(<= main_x 206), 131162#(<= main_x 211), 131163#(<= main_x 212), 131160#(<= main_x 209), 131161#(<= main_x 210), 131166#(<= main_x 215), 131167#(<= main_x 216), 131164#(<= main_x 213), 131165#(<= main_x 214), 131170#(<= main_x 219), 131171#(<= main_x 220), 131168#(<= main_x 217), 131169#(<= main_x 218), 131174#(<= main_x 223), 131175#(<= main_x 224), 131172#(<= main_x 221), 131173#(<= main_x 222), 130949#true, 130951#(<= main_x 0), 130950#false, 130953#(<= main_x 2), 130952#(<= main_x 1), 130955#(<= main_x 4), 130954#(<= main_x 3), 130957#(<= main_x 6), 130956#(<= main_x 5), 130959#(<= main_x 8), 130958#(<= main_x 7), 130961#(<= main_x 10), 130960#(<= main_x 9), 130963#(<= main_x 12), 130962#(<= main_x 11), 130965#(<= main_x 14), 130964#(<= main_x 13), 130967#(<= main_x 16), 130966#(<= main_x 15), 130969#(<= main_x 18), 130968#(<= main_x 17), 130971#(<= main_x 20), 130970#(<= main_x 19), 130973#(<= main_x 22), 130972#(<= main_x 21), 130975#(<= main_x 24), 130974#(<= main_x 23), 130977#(<= main_x 26), 130976#(<= main_x 25), 130979#(<= main_x 28), 130978#(<= main_x 27), 130981#(<= main_x 30), 130980#(<= main_x 29), 130983#(<= main_x 32), 130982#(<= main_x 31), 130985#(<= main_x 34), 130984#(<= main_x 33), 130987#(<= main_x 36), 130986#(<= main_x 35), 130989#(<= main_x 38), 130988#(<= main_x 37), 130991#(<= main_x 40), 130990#(<= main_x 39), 130993#(<= main_x 42), 130992#(<= main_x 41), 130995#(<= main_x 44), 130994#(<= main_x 43), 130997#(<= main_x 46), 130996#(<= main_x 45), 130999#(<= main_x 48), 130998#(<= main_x 47), 131001#(<= main_x 50), 131000#(<= main_x 49), 131003#(<= main_x 52), 131002#(<= main_x 51), 131005#(<= main_x 54), 131004#(<= main_x 53), 131007#(<= main_x 56), 131006#(<= main_x 55), 131009#(<= main_x 58), 131008#(<= main_x 57), 131011#(<= main_x 60), 131010#(<= main_x 59), 131013#(<= main_x 62), 131012#(<= main_x 61), 131015#(<= main_x 64), 131014#(<= main_x 63), 131017#(<= main_x 66), 131016#(<= main_x 65), 131019#(<= main_x 68), 131018#(<= main_x 67), 131021#(<= main_x 70), 131020#(<= main_x 69), 131023#(<= main_x 72), 131022#(<= main_x 71), 131025#(<= main_x 74), 131024#(<= main_x 73), 131027#(<= main_x 76), 131026#(<= main_x 75), 131029#(<= main_x 78), 131028#(<= main_x 77), 131031#(<= main_x 80), 131030#(<= main_x 79), 131033#(<= main_x 82), 131032#(<= main_x 81), 131035#(<= main_x 84), 131034#(<= main_x 83), 131037#(<= main_x 86), 131036#(<= main_x 85), 131039#(<= main_x 88), 131038#(<= main_x 87), 131041#(<= main_x 90), 131040#(<= main_x 89), 131043#(<= main_x 92), 131042#(<= main_x 91), 131045#(<= main_x 94), 131044#(<= main_x 93), 131047#(<= main_x 96), 131046#(<= main_x 95), 131049#(<= main_x 98), 131048#(<= main_x 97), 131051#(<= main_x 100), 131050#(<= main_x 99), 131053#(<= main_x 102), 131052#(<= main_x 101), 131055#(<= main_x 104), 131054#(<= main_x 103), 131057#(<= main_x 106), 131056#(<= main_x 105), 131059#(<= main_x 108), 131058#(<= main_x 107), 131061#(<= main_x 110), 131060#(<= main_x 109), 131063#(<= main_x 112), 131062#(<= main_x 111), 131065#(<= main_x 114), 131064#(<= main_x 113), 131067#(<= main_x 116), 131066#(<= main_x 115), 131069#(<= main_x 118), 131068#(<= main_x 117), 131071#(<= main_x 120), 131070#(<= main_x 119)] [2018-07-23 13:57:49,347 INFO L134 CoverageAnalysis]: Checked inductivity of 25200 backedges. 0 proven. 25200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:49,348 INFO L450 AbstractCegarLoop]: Interpolant automaton has 227 states [2018-07-23 13:57:49,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 227 interpolants. [2018-07-23 13:57:49,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25651, Invalid=25651, Unknown=0, NotChecked=0, Total=51302 [2018-07-23 13:57:49,353 INFO L87 Difference]: Start difference. First operand 228 states and 228 transitions. Second operand 227 states. [2018-07-23 13:57:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:49,761 INFO L93 Difference]: Finished difference Result 231 states and 231 transitions. [2018-07-23 13:57:49,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2018-07-23 13:57:49,761 INFO L78 Accepts]: Start accepts. Automaton has 227 states. Word has length 227 [2018-07-23 13:57:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:49,761 INFO L225 Difference]: With dead ends: 231 [2018-07-23 13:57:49,761 INFO L226 Difference]: Without dead ends: 229 [2018-07-23 13:57:49,763 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25651, Invalid=25651, Unknown=0, NotChecked=0, Total=51302 [2018-07-23 13:57:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-07-23 13:57:49,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2018-07-23 13:57:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-07-23 13:57:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 229 transitions. [2018-07-23 13:57:49,766 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 229 transitions. Word has length 227 [2018-07-23 13:57:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:49,766 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 229 transitions. [2018-07-23 13:57:49,766 INFO L472 AbstractCegarLoop]: Interpolant automaton has 227 states. [2018-07-23 13:57:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 229 transitions. [2018-07-23 13:57:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-07-23 13:57:49,767 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:49,767 INFO L357 BasicCegarLoop]: trace histogram [225, 1, 1, 1] [2018-07-23 13:57:49,767 INFO L414 AbstractCegarLoop]: === Iteration 226 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:49,767 INFO L82 PathProgramCache]: Analyzing trace with hash -56618106, now seen corresponding path program 225 times [2018-07-23 13:57:49,767 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 25425 backedges. 0 proven. 25425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:51,130 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:51,130 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [227] total 227 [2018-07-23 13:57:51,130 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:51,131 INFO L185 omatonBuilderFactory]: Interpolants [132098#(<= main_x 0), 132099#(<= main_x 1), 132096#true, 132097#false, 132102#(<= main_x 4), 132103#(<= main_x 5), 132100#(<= main_x 2), 132101#(<= main_x 3), 132106#(<= main_x 8), 132107#(<= main_x 9), 132104#(<= main_x 6), 132105#(<= main_x 7), 132110#(<= main_x 12), 132111#(<= main_x 13), 132108#(<= main_x 10), 132109#(<= main_x 11), 132114#(<= main_x 16), 132115#(<= main_x 17), 132112#(<= main_x 14), 132113#(<= main_x 15), 132118#(<= main_x 20), 132119#(<= main_x 21), 132116#(<= main_x 18), 132117#(<= main_x 19), 132122#(<= main_x 24), 132123#(<= main_x 25), 132120#(<= main_x 22), 132121#(<= main_x 23), 132126#(<= main_x 28), 132127#(<= main_x 29), 132124#(<= main_x 26), 132125#(<= main_x 27), 132130#(<= main_x 32), 132131#(<= main_x 33), 132128#(<= main_x 30), 132129#(<= main_x 31), 132134#(<= main_x 36), 132135#(<= main_x 37), 132132#(<= main_x 34), 132133#(<= main_x 35), 132138#(<= main_x 40), 132139#(<= main_x 41), 132136#(<= main_x 38), 132137#(<= main_x 39), 132142#(<= main_x 44), 132143#(<= main_x 45), 132140#(<= main_x 42), 132141#(<= main_x 43), 132146#(<= main_x 48), 132147#(<= main_x 49), 132144#(<= main_x 46), 132145#(<= main_x 47), 132150#(<= main_x 52), 132151#(<= main_x 53), 132148#(<= main_x 50), 132149#(<= main_x 51), 132154#(<= main_x 56), 132155#(<= main_x 57), 132152#(<= main_x 54), 132153#(<= main_x 55), 132158#(<= main_x 60), 132159#(<= main_x 61), 132156#(<= main_x 58), 132157#(<= main_x 59), 132162#(<= main_x 64), 132163#(<= main_x 65), 132160#(<= main_x 62), 132161#(<= main_x 63), 132166#(<= main_x 68), 132167#(<= main_x 69), 132164#(<= main_x 66), 132165#(<= main_x 67), 132170#(<= main_x 72), 132171#(<= main_x 73), 132168#(<= main_x 70), 132169#(<= main_x 71), 132174#(<= main_x 76), 132175#(<= main_x 77), 132172#(<= main_x 74), 132173#(<= main_x 75), 132178#(<= main_x 80), 132179#(<= main_x 81), 132176#(<= main_x 78), 132177#(<= main_x 79), 132182#(<= main_x 84), 132183#(<= main_x 85), 132180#(<= main_x 82), 132181#(<= main_x 83), 132186#(<= main_x 88), 132187#(<= main_x 89), 132184#(<= main_x 86), 132185#(<= main_x 87), 132190#(<= main_x 92), 132191#(<= main_x 93), 132188#(<= main_x 90), 132189#(<= main_x 91), 132194#(<= main_x 96), 132195#(<= main_x 97), 132192#(<= main_x 94), 132193#(<= main_x 95), 132198#(<= main_x 100), 132199#(<= main_x 101), 132196#(<= main_x 98), 132197#(<= main_x 99), 132202#(<= main_x 104), 132203#(<= main_x 105), 132200#(<= main_x 102), 132201#(<= main_x 103), 132206#(<= main_x 108), 132207#(<= main_x 109), 132204#(<= main_x 106), 132205#(<= main_x 107), 132210#(<= main_x 112), 132211#(<= main_x 113), 132208#(<= main_x 110), 132209#(<= main_x 111), 132214#(<= main_x 116), 132215#(<= main_x 117), 132212#(<= main_x 114), 132213#(<= main_x 115), 132218#(<= main_x 120), 132219#(<= main_x 121), 132216#(<= main_x 118), 132217#(<= main_x 119), 132222#(<= main_x 124), 132223#(<= main_x 125), 132220#(<= main_x 122), 132221#(<= main_x 123), 132226#(<= main_x 128), 132227#(<= main_x 129), 132224#(<= main_x 126), 132225#(<= main_x 127), 132230#(<= main_x 132), 132231#(<= main_x 133), 132228#(<= main_x 130), 132229#(<= main_x 131), 132234#(<= main_x 136), 132235#(<= main_x 137), 132232#(<= main_x 134), 132233#(<= main_x 135), 132238#(<= main_x 140), 132239#(<= main_x 141), 132236#(<= main_x 138), 132237#(<= main_x 139), 132242#(<= main_x 144), 132243#(<= main_x 145), 132240#(<= main_x 142), 132241#(<= main_x 143), 132246#(<= main_x 148), 132247#(<= main_x 149), 132244#(<= main_x 146), 132245#(<= main_x 147), 132250#(<= main_x 152), 132251#(<= main_x 153), 132248#(<= main_x 150), 132249#(<= main_x 151), 132254#(<= main_x 156), 132255#(<= main_x 157), 132252#(<= main_x 154), 132253#(<= main_x 155), 132258#(<= main_x 160), 132259#(<= main_x 161), 132256#(<= main_x 158), 132257#(<= main_x 159), 132262#(<= main_x 164), 132263#(<= main_x 165), 132260#(<= main_x 162), 132261#(<= main_x 163), 132266#(<= main_x 168), 132267#(<= main_x 169), 132264#(<= main_x 166), 132265#(<= main_x 167), 132270#(<= main_x 172), 132271#(<= main_x 173), 132268#(<= main_x 170), 132269#(<= main_x 171), 132274#(<= main_x 176), 132275#(<= main_x 177), 132272#(<= main_x 174), 132273#(<= main_x 175), 132278#(<= main_x 180), 132279#(<= main_x 181), 132276#(<= main_x 178), 132277#(<= main_x 179), 132282#(<= main_x 184), 132283#(<= main_x 185), 132280#(<= main_x 182), 132281#(<= main_x 183), 132286#(<= main_x 188), 132287#(<= main_x 189), 132284#(<= main_x 186), 132285#(<= main_x 187), 132290#(<= main_x 192), 132291#(<= main_x 193), 132288#(<= main_x 190), 132289#(<= main_x 191), 132294#(<= main_x 196), 132295#(<= main_x 197), 132292#(<= main_x 194), 132293#(<= main_x 195), 132298#(<= main_x 200), 132299#(<= main_x 201), 132296#(<= main_x 198), 132297#(<= main_x 199), 132302#(<= main_x 204), 132303#(<= main_x 205), 132300#(<= main_x 202), 132301#(<= main_x 203), 132306#(<= main_x 208), 132307#(<= main_x 209), 132304#(<= main_x 206), 132305#(<= main_x 207), 132310#(<= main_x 212), 132311#(<= main_x 213), 132308#(<= main_x 210), 132309#(<= main_x 211), 132314#(<= main_x 216), 132315#(<= main_x 217), 132312#(<= main_x 214), 132313#(<= main_x 215), 132318#(<= main_x 220), 132319#(<= main_x 221), 132316#(<= main_x 218), 132317#(<= main_x 219), 132322#(<= main_x 224), 132323#(<= main_x 225), 132320#(<= main_x 222), 132321#(<= main_x 223)] [2018-07-23 13:57:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 25425 backedges. 0 proven. 25425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:51,132 INFO L450 AbstractCegarLoop]: Interpolant automaton has 228 states [2018-07-23 13:57:51,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2018-07-23 13:57:51,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25878, Invalid=25878, Unknown=0, NotChecked=0, Total=51756 [2018-07-23 13:57:51,138 INFO L87 Difference]: Start difference. First operand 229 states and 229 transitions. Second operand 228 states. [2018-07-23 13:57:53,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:53,234 INFO L93 Difference]: Finished difference Result 232 states and 232 transitions. [2018-07-23 13:57:53,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2018-07-23 13:57:53,234 INFO L78 Accepts]: Start accepts. Automaton has 228 states. Word has length 228 [2018-07-23 13:57:53,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:53,235 INFO L225 Difference]: With dead ends: 232 [2018-07-23 13:57:53,235 INFO L226 Difference]: Without dead ends: 230 [2018-07-23 13:57:53,237 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25878, Invalid=25878, Unknown=0, NotChecked=0, Total=51756 [2018-07-23 13:57:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-07-23 13:57:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2018-07-23 13:57:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-07-23 13:57:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2018-07-23 13:57:53,240 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 228 [2018-07-23 13:57:53,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:53,240 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2018-07-23 13:57:53,240 INFO L472 AbstractCegarLoop]: Interpolant automaton has 228 states. [2018-07-23 13:57:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2018-07-23 13:57:53,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-07-23 13:57:53,241 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:53,241 INFO L357 BasicCegarLoop]: trace histogram [226, 1, 1, 1] [2018-07-23 13:57:53,241 INFO L414 AbstractCegarLoop]: === Iteration 227 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:53,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1755165152, now seen corresponding path program 226 times [2018-07-23 13:57:53,241 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 25651 backedges. 0 proven. 25651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:54,785 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:54,785 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [228] total 228 [2018-07-23 13:57:54,785 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:54,786 INFO L185 omatonBuilderFactory]: Interpolants [133250#(<= main_x 0), 133251#(<= main_x 1), 133248#true, 133249#false, 133254#(<= main_x 4), 133255#(<= main_x 5), 133252#(<= main_x 2), 133253#(<= main_x 3), 133258#(<= main_x 8), 133259#(<= main_x 9), 133256#(<= main_x 6), 133257#(<= main_x 7), 133262#(<= main_x 12), 133263#(<= main_x 13), 133260#(<= main_x 10), 133261#(<= main_x 11), 133266#(<= main_x 16), 133267#(<= main_x 17), 133264#(<= main_x 14), 133265#(<= main_x 15), 133270#(<= main_x 20), 133271#(<= main_x 21), 133268#(<= main_x 18), 133269#(<= main_x 19), 133274#(<= main_x 24), 133275#(<= main_x 25), 133272#(<= main_x 22), 133273#(<= main_x 23), 133278#(<= main_x 28), 133279#(<= main_x 29), 133276#(<= main_x 26), 133277#(<= main_x 27), 133282#(<= main_x 32), 133283#(<= main_x 33), 133280#(<= main_x 30), 133281#(<= main_x 31), 133286#(<= main_x 36), 133287#(<= main_x 37), 133284#(<= main_x 34), 133285#(<= main_x 35), 133290#(<= main_x 40), 133291#(<= main_x 41), 133288#(<= main_x 38), 133289#(<= main_x 39), 133294#(<= main_x 44), 133295#(<= main_x 45), 133292#(<= main_x 42), 133293#(<= main_x 43), 133298#(<= main_x 48), 133299#(<= main_x 49), 133296#(<= main_x 46), 133297#(<= main_x 47), 133302#(<= main_x 52), 133303#(<= main_x 53), 133300#(<= main_x 50), 133301#(<= main_x 51), 133306#(<= main_x 56), 133307#(<= main_x 57), 133304#(<= main_x 54), 133305#(<= main_x 55), 133310#(<= main_x 60), 133311#(<= main_x 61), 133308#(<= main_x 58), 133309#(<= main_x 59), 133314#(<= main_x 64), 133315#(<= main_x 65), 133312#(<= main_x 62), 133313#(<= main_x 63), 133318#(<= main_x 68), 133319#(<= main_x 69), 133316#(<= main_x 66), 133317#(<= main_x 67), 133322#(<= main_x 72), 133323#(<= main_x 73), 133320#(<= main_x 70), 133321#(<= main_x 71), 133326#(<= main_x 76), 133327#(<= main_x 77), 133324#(<= main_x 74), 133325#(<= main_x 75), 133330#(<= main_x 80), 133331#(<= main_x 81), 133328#(<= main_x 78), 133329#(<= main_x 79), 133334#(<= main_x 84), 133335#(<= main_x 85), 133332#(<= main_x 82), 133333#(<= main_x 83), 133338#(<= main_x 88), 133339#(<= main_x 89), 133336#(<= main_x 86), 133337#(<= main_x 87), 133342#(<= main_x 92), 133343#(<= main_x 93), 133340#(<= main_x 90), 133341#(<= main_x 91), 133346#(<= main_x 96), 133347#(<= main_x 97), 133344#(<= main_x 94), 133345#(<= main_x 95), 133350#(<= main_x 100), 133351#(<= main_x 101), 133348#(<= main_x 98), 133349#(<= main_x 99), 133354#(<= main_x 104), 133355#(<= main_x 105), 133352#(<= main_x 102), 133353#(<= main_x 103), 133358#(<= main_x 108), 133359#(<= main_x 109), 133356#(<= main_x 106), 133357#(<= main_x 107), 133362#(<= main_x 112), 133363#(<= main_x 113), 133360#(<= main_x 110), 133361#(<= main_x 111), 133366#(<= main_x 116), 133367#(<= main_x 117), 133364#(<= main_x 114), 133365#(<= main_x 115), 133370#(<= main_x 120), 133371#(<= main_x 121), 133368#(<= main_x 118), 133369#(<= main_x 119), 133374#(<= main_x 124), 133375#(<= main_x 125), 133372#(<= main_x 122), 133373#(<= main_x 123), 133378#(<= main_x 128), 133379#(<= main_x 129), 133376#(<= main_x 126), 133377#(<= main_x 127), 133382#(<= main_x 132), 133383#(<= main_x 133), 133380#(<= main_x 130), 133381#(<= main_x 131), 133386#(<= main_x 136), 133387#(<= main_x 137), 133384#(<= main_x 134), 133385#(<= main_x 135), 133390#(<= main_x 140), 133391#(<= main_x 141), 133388#(<= main_x 138), 133389#(<= main_x 139), 133394#(<= main_x 144), 133395#(<= main_x 145), 133392#(<= main_x 142), 133393#(<= main_x 143), 133398#(<= main_x 148), 133399#(<= main_x 149), 133396#(<= main_x 146), 133397#(<= main_x 147), 133402#(<= main_x 152), 133403#(<= main_x 153), 133400#(<= main_x 150), 133401#(<= main_x 151), 133406#(<= main_x 156), 133407#(<= main_x 157), 133404#(<= main_x 154), 133405#(<= main_x 155), 133410#(<= main_x 160), 133411#(<= main_x 161), 133408#(<= main_x 158), 133409#(<= main_x 159), 133414#(<= main_x 164), 133415#(<= main_x 165), 133412#(<= main_x 162), 133413#(<= main_x 163), 133418#(<= main_x 168), 133419#(<= main_x 169), 133416#(<= main_x 166), 133417#(<= main_x 167), 133422#(<= main_x 172), 133423#(<= main_x 173), 133420#(<= main_x 170), 133421#(<= main_x 171), 133426#(<= main_x 176), 133427#(<= main_x 177), 133424#(<= main_x 174), 133425#(<= main_x 175), 133430#(<= main_x 180), 133431#(<= main_x 181), 133428#(<= main_x 178), 133429#(<= main_x 179), 133434#(<= main_x 184), 133435#(<= main_x 185), 133432#(<= main_x 182), 133433#(<= main_x 183), 133438#(<= main_x 188), 133439#(<= main_x 189), 133436#(<= main_x 186), 133437#(<= main_x 187), 133442#(<= main_x 192), 133443#(<= main_x 193), 133440#(<= main_x 190), 133441#(<= main_x 191), 133446#(<= main_x 196), 133447#(<= main_x 197), 133444#(<= main_x 194), 133445#(<= main_x 195), 133450#(<= main_x 200), 133451#(<= main_x 201), 133448#(<= main_x 198), 133449#(<= main_x 199), 133454#(<= main_x 204), 133455#(<= main_x 205), 133452#(<= main_x 202), 133453#(<= main_x 203), 133458#(<= main_x 208), 133459#(<= main_x 209), 133456#(<= main_x 206), 133457#(<= main_x 207), 133462#(<= main_x 212), 133463#(<= main_x 213), 133460#(<= main_x 210), 133461#(<= main_x 211), 133466#(<= main_x 216), 133467#(<= main_x 217), 133464#(<= main_x 214), 133465#(<= main_x 215), 133470#(<= main_x 220), 133471#(<= main_x 221), 133468#(<= main_x 218), 133469#(<= main_x 219), 133474#(<= main_x 224), 133475#(<= main_x 225), 133472#(<= main_x 222), 133473#(<= main_x 223), 133476#(<= main_x 226)] [2018-07-23 13:57:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 25651 backedges. 0 proven. 25651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:54,787 INFO L450 AbstractCegarLoop]: Interpolant automaton has 229 states [2018-07-23 13:57:54,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 229 interpolants. [2018-07-23 13:57:54,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26106, Invalid=26106, Unknown=0, NotChecked=0, Total=52212 [2018-07-23 13:57:54,793 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand 229 states. [2018-07-23 13:57:55,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:55,649 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2018-07-23 13:57:55,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2018-07-23 13:57:55,649 INFO L78 Accepts]: Start accepts. Automaton has 229 states. Word has length 229 [2018-07-23 13:57:55,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:55,649 INFO L225 Difference]: With dead ends: 233 [2018-07-23 13:57:55,649 INFO L226 Difference]: Without dead ends: 231 [2018-07-23 13:57:55,650 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=26106, Invalid=26106, Unknown=0, NotChecked=0, Total=52212 [2018-07-23 13:57:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-07-23 13:57:55,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2018-07-23 13:57:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-07-23 13:57:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 231 transitions. [2018-07-23 13:57:55,653 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 231 transitions. Word has length 229 [2018-07-23 13:57:55,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:55,653 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 231 transitions. [2018-07-23 13:57:55,653 INFO L472 AbstractCegarLoop]: Interpolant automaton has 229 states. [2018-07-23 13:57:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 231 transitions. [2018-07-23 13:57:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-07-23 13:57:55,653 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:55,654 INFO L357 BasicCegarLoop]: trace histogram [227, 1, 1, 1] [2018-07-23 13:57:55,654 INFO L414 AbstractCegarLoop]: === Iteration 228 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:55,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1424451270, now seen corresponding path program 227 times [2018-07-23 13:57:55,654 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:57:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 25878 backedges. 0 proven. 25878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:57,188 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:57:57,188 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [229] total 229 [2018-07-23 13:57:57,189 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:57:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:57,189 INFO L185 omatonBuilderFactory]: Interpolants [134406#false, 134407#(<= main_x 0), 134405#true, 134410#(<= main_x 3), 134411#(<= main_x 4), 134408#(<= main_x 1), 134409#(<= main_x 2), 134414#(<= main_x 7), 134415#(<= main_x 8), 134412#(<= main_x 5), 134413#(<= main_x 6), 134418#(<= main_x 11), 134419#(<= main_x 12), 134416#(<= main_x 9), 134417#(<= main_x 10), 134422#(<= main_x 15), 134423#(<= main_x 16), 134420#(<= main_x 13), 134421#(<= main_x 14), 134426#(<= main_x 19), 134427#(<= main_x 20), 134424#(<= main_x 17), 134425#(<= main_x 18), 134430#(<= main_x 23), 134431#(<= main_x 24), 134428#(<= main_x 21), 134429#(<= main_x 22), 134434#(<= main_x 27), 134435#(<= main_x 28), 134432#(<= main_x 25), 134433#(<= main_x 26), 134438#(<= main_x 31), 134439#(<= main_x 32), 134436#(<= main_x 29), 134437#(<= main_x 30), 134442#(<= main_x 35), 134443#(<= main_x 36), 134440#(<= main_x 33), 134441#(<= main_x 34), 134446#(<= main_x 39), 134447#(<= main_x 40), 134444#(<= main_x 37), 134445#(<= main_x 38), 134450#(<= main_x 43), 134451#(<= main_x 44), 134448#(<= main_x 41), 134449#(<= main_x 42), 134454#(<= main_x 47), 134455#(<= main_x 48), 134452#(<= main_x 45), 134453#(<= main_x 46), 134458#(<= main_x 51), 134459#(<= main_x 52), 134456#(<= main_x 49), 134457#(<= main_x 50), 134462#(<= main_x 55), 134463#(<= main_x 56), 134460#(<= main_x 53), 134461#(<= main_x 54), 134466#(<= main_x 59), 134467#(<= main_x 60), 134464#(<= main_x 57), 134465#(<= main_x 58), 134470#(<= main_x 63), 134471#(<= main_x 64), 134468#(<= main_x 61), 134469#(<= main_x 62), 134474#(<= main_x 67), 134475#(<= main_x 68), 134472#(<= main_x 65), 134473#(<= main_x 66), 134478#(<= main_x 71), 134479#(<= main_x 72), 134476#(<= main_x 69), 134477#(<= main_x 70), 134482#(<= main_x 75), 134483#(<= main_x 76), 134480#(<= main_x 73), 134481#(<= main_x 74), 134486#(<= main_x 79), 134487#(<= main_x 80), 134484#(<= main_x 77), 134485#(<= main_x 78), 134490#(<= main_x 83), 134491#(<= main_x 84), 134488#(<= main_x 81), 134489#(<= main_x 82), 134494#(<= main_x 87), 134495#(<= main_x 88), 134492#(<= main_x 85), 134493#(<= main_x 86), 134498#(<= main_x 91), 134499#(<= main_x 92), 134496#(<= main_x 89), 134497#(<= main_x 90), 134502#(<= main_x 95), 134503#(<= main_x 96), 134500#(<= main_x 93), 134501#(<= main_x 94), 134506#(<= main_x 99), 134507#(<= main_x 100), 134504#(<= main_x 97), 134505#(<= main_x 98), 134510#(<= main_x 103), 134511#(<= main_x 104), 134508#(<= main_x 101), 134509#(<= main_x 102), 134514#(<= main_x 107), 134515#(<= main_x 108), 134512#(<= main_x 105), 134513#(<= main_x 106), 134518#(<= main_x 111), 134519#(<= main_x 112), 134516#(<= main_x 109), 134517#(<= main_x 110), 134522#(<= main_x 115), 134523#(<= main_x 116), 134520#(<= main_x 113), 134521#(<= main_x 114), 134526#(<= main_x 119), 134527#(<= main_x 120), 134524#(<= main_x 117), 134525#(<= main_x 118), 134530#(<= main_x 123), 134531#(<= main_x 124), 134528#(<= main_x 121), 134529#(<= main_x 122), 134534#(<= main_x 127), 134535#(<= main_x 128), 134532#(<= main_x 125), 134533#(<= main_x 126), 134538#(<= main_x 131), 134539#(<= main_x 132), 134536#(<= main_x 129), 134537#(<= main_x 130), 134542#(<= main_x 135), 134543#(<= main_x 136), 134540#(<= main_x 133), 134541#(<= main_x 134), 134546#(<= main_x 139), 134547#(<= main_x 140), 134544#(<= main_x 137), 134545#(<= main_x 138), 134550#(<= main_x 143), 134551#(<= main_x 144), 134548#(<= main_x 141), 134549#(<= main_x 142), 134554#(<= main_x 147), 134555#(<= main_x 148), 134552#(<= main_x 145), 134553#(<= main_x 146), 134558#(<= main_x 151), 134559#(<= main_x 152), 134556#(<= main_x 149), 134557#(<= main_x 150), 134562#(<= main_x 155), 134563#(<= main_x 156), 134560#(<= main_x 153), 134561#(<= main_x 154), 134566#(<= main_x 159), 134567#(<= main_x 160), 134564#(<= main_x 157), 134565#(<= main_x 158), 134570#(<= main_x 163), 134571#(<= main_x 164), 134568#(<= main_x 161), 134569#(<= main_x 162), 134574#(<= main_x 167), 134575#(<= main_x 168), 134572#(<= main_x 165), 134573#(<= main_x 166), 134578#(<= main_x 171), 134579#(<= main_x 172), 134576#(<= main_x 169), 134577#(<= main_x 170), 134582#(<= main_x 175), 134583#(<= main_x 176), 134580#(<= main_x 173), 134581#(<= main_x 174), 134586#(<= main_x 179), 134587#(<= main_x 180), 134584#(<= main_x 177), 134585#(<= main_x 178), 134590#(<= main_x 183), 134591#(<= main_x 184), 134588#(<= main_x 181), 134589#(<= main_x 182), 134594#(<= main_x 187), 134595#(<= main_x 188), 134592#(<= main_x 185), 134593#(<= main_x 186), 134598#(<= main_x 191), 134599#(<= main_x 192), 134596#(<= main_x 189), 134597#(<= main_x 190), 134602#(<= main_x 195), 134603#(<= main_x 196), 134600#(<= main_x 193), 134601#(<= main_x 194), 134606#(<= main_x 199), 134607#(<= main_x 200), 134604#(<= main_x 197), 134605#(<= main_x 198), 134610#(<= main_x 203), 134611#(<= main_x 204), 134608#(<= main_x 201), 134609#(<= main_x 202), 134614#(<= main_x 207), 134615#(<= main_x 208), 134612#(<= main_x 205), 134613#(<= main_x 206), 134618#(<= main_x 211), 134619#(<= main_x 212), 134616#(<= main_x 209), 134617#(<= main_x 210), 134622#(<= main_x 215), 134623#(<= main_x 216), 134620#(<= main_x 213), 134621#(<= main_x 214), 134626#(<= main_x 219), 134627#(<= main_x 220), 134624#(<= main_x 217), 134625#(<= main_x 218), 134630#(<= main_x 223), 134631#(<= main_x 224), 134628#(<= main_x 221), 134629#(<= main_x 222), 134634#(<= main_x 227), 134632#(<= main_x 225), 134633#(<= main_x 226)] [2018-07-23 13:57:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 25878 backedges. 0 proven. 25878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:57:57,191 INFO L450 AbstractCegarLoop]: Interpolant automaton has 230 states [2018-07-23 13:57:57,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 230 interpolants. [2018-07-23 13:57:57,197 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26335, Invalid=26335, Unknown=0, NotChecked=0, Total=52670 [2018-07-23 13:57:57,197 INFO L87 Difference]: Start difference. First operand 231 states and 231 transitions. Second operand 230 states. [2018-07-23 13:57:59,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:57:59,106 INFO L93 Difference]: Finished difference Result 234 states and 234 transitions. [2018-07-23 13:57:59,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2018-07-23 13:57:59,106 INFO L78 Accepts]: Start accepts. Automaton has 230 states. Word has length 230 [2018-07-23 13:57:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:57:59,107 INFO L225 Difference]: With dead ends: 234 [2018-07-23 13:57:59,107 INFO L226 Difference]: Without dead ends: 232 [2018-07-23 13:57:59,110 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=26335, Invalid=26335, Unknown=0, NotChecked=0, Total=52670 [2018-07-23 13:57:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-07-23 13:57:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2018-07-23 13:57:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-07-23 13:57:59,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 232 transitions. [2018-07-23 13:57:59,113 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 232 transitions. Word has length 230 [2018-07-23 13:57:59,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:57:59,113 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 232 transitions. [2018-07-23 13:57:59,113 INFO L472 AbstractCegarLoop]: Interpolant automaton has 230 states. [2018-07-23 13:57:59,113 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 232 transitions. [2018-07-23 13:57:59,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-07-23 13:57:59,113 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:57:59,114 INFO L357 BasicCegarLoop]: trace histogram [228, 1, 1, 1] [2018-07-23 13:57:59,114 INFO L414 AbstractCegarLoop]: === Iteration 229 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:57:59,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1208312544, now seen corresponding path program 228 times [2018-07-23 13:57:59,114 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:57:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 26106 backedges. 0 proven. 26106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:00,733 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:00,733 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [230] total 230 [2018-07-23 13:58:00,734 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:00,734 INFO L185 omatonBuilderFactory]: Interpolants [135682#(<= main_x 113), 135683#(<= main_x 114), 135680#(<= main_x 111), 135681#(<= main_x 112), 135686#(<= main_x 117), 135687#(<= main_x 118), 135684#(<= main_x 115), 135685#(<= main_x 116), 135690#(<= main_x 121), 135691#(<= main_x 122), 135688#(<= main_x 119), 135689#(<= main_x 120), 135694#(<= main_x 125), 135695#(<= main_x 126), 135692#(<= main_x 123), 135693#(<= main_x 124), 135698#(<= main_x 129), 135699#(<= main_x 130), 135696#(<= main_x 127), 135697#(<= main_x 128), 135702#(<= main_x 133), 135703#(<= main_x 134), 135700#(<= main_x 131), 135701#(<= main_x 132), 135706#(<= main_x 137), 135707#(<= main_x 138), 135704#(<= main_x 135), 135705#(<= main_x 136), 135710#(<= main_x 141), 135711#(<= main_x 142), 135708#(<= main_x 139), 135709#(<= main_x 140), 135714#(<= main_x 145), 135715#(<= main_x 146), 135712#(<= main_x 143), 135713#(<= main_x 144), 135718#(<= main_x 149), 135719#(<= main_x 150), 135716#(<= main_x 147), 135717#(<= main_x 148), 135722#(<= main_x 153), 135723#(<= main_x 154), 135720#(<= main_x 151), 135721#(<= main_x 152), 135726#(<= main_x 157), 135727#(<= main_x 158), 135724#(<= main_x 155), 135725#(<= main_x 156), 135730#(<= main_x 161), 135731#(<= main_x 162), 135728#(<= main_x 159), 135729#(<= main_x 160), 135734#(<= main_x 165), 135735#(<= main_x 166), 135732#(<= main_x 163), 135733#(<= main_x 164), 135738#(<= main_x 169), 135739#(<= main_x 170), 135736#(<= main_x 167), 135737#(<= main_x 168), 135742#(<= main_x 173), 135743#(<= main_x 174), 135740#(<= main_x 171), 135741#(<= main_x 172), 135746#(<= main_x 177), 135747#(<= main_x 178), 135744#(<= main_x 175), 135745#(<= main_x 176), 135750#(<= main_x 181), 135751#(<= main_x 182), 135748#(<= main_x 179), 135749#(<= main_x 180), 135754#(<= main_x 185), 135755#(<= main_x 186), 135752#(<= main_x 183), 135753#(<= main_x 184), 135758#(<= main_x 189), 135759#(<= main_x 190), 135756#(<= main_x 187), 135757#(<= main_x 188), 135762#(<= main_x 193), 135763#(<= main_x 194), 135760#(<= main_x 191), 135761#(<= main_x 192), 135766#(<= main_x 197), 135767#(<= main_x 198), 135764#(<= main_x 195), 135765#(<= main_x 196), 135770#(<= main_x 201), 135771#(<= main_x 202), 135768#(<= main_x 199), 135769#(<= main_x 200), 135774#(<= main_x 205), 135775#(<= main_x 206), 135772#(<= main_x 203), 135773#(<= main_x 204), 135778#(<= main_x 209), 135779#(<= main_x 210), 135776#(<= main_x 207), 135777#(<= main_x 208), 135782#(<= main_x 213), 135783#(<= main_x 214), 135780#(<= main_x 211), 135781#(<= main_x 212), 135786#(<= main_x 217), 135787#(<= main_x 218), 135784#(<= main_x 215), 135785#(<= main_x 216), 135790#(<= main_x 221), 135791#(<= main_x 222), 135788#(<= main_x 219), 135789#(<= main_x 220), 135794#(<= main_x 225), 135795#(<= main_x 226), 135792#(<= main_x 223), 135793#(<= main_x 224), 135796#(<= main_x 227), 135797#(<= main_x 228), 135567#true, 135570#(<= main_x 1), 135571#(<= main_x 2), 135568#false, 135569#(<= main_x 0), 135574#(<= main_x 5), 135575#(<= main_x 6), 135572#(<= main_x 3), 135573#(<= main_x 4), 135578#(<= main_x 9), 135579#(<= main_x 10), 135576#(<= main_x 7), 135577#(<= main_x 8), 135582#(<= main_x 13), 135583#(<= main_x 14), 135580#(<= main_x 11), 135581#(<= main_x 12), 135586#(<= main_x 17), 135587#(<= main_x 18), 135584#(<= main_x 15), 135585#(<= main_x 16), 135590#(<= main_x 21), 135591#(<= main_x 22), 135588#(<= main_x 19), 135589#(<= main_x 20), 135594#(<= main_x 25), 135595#(<= main_x 26), 135592#(<= main_x 23), 135593#(<= main_x 24), 135598#(<= main_x 29), 135599#(<= main_x 30), 135596#(<= main_x 27), 135597#(<= main_x 28), 135602#(<= main_x 33), 135603#(<= main_x 34), 135600#(<= main_x 31), 135601#(<= main_x 32), 135606#(<= main_x 37), 135607#(<= main_x 38), 135604#(<= main_x 35), 135605#(<= main_x 36), 135610#(<= main_x 41), 135611#(<= main_x 42), 135608#(<= main_x 39), 135609#(<= main_x 40), 135614#(<= main_x 45), 135615#(<= main_x 46), 135612#(<= main_x 43), 135613#(<= main_x 44), 135618#(<= main_x 49), 135619#(<= main_x 50), 135616#(<= main_x 47), 135617#(<= main_x 48), 135622#(<= main_x 53), 135623#(<= main_x 54), 135620#(<= main_x 51), 135621#(<= main_x 52), 135626#(<= main_x 57), 135627#(<= main_x 58), 135624#(<= main_x 55), 135625#(<= main_x 56), 135630#(<= main_x 61), 135631#(<= main_x 62), 135628#(<= main_x 59), 135629#(<= main_x 60), 135634#(<= main_x 65), 135635#(<= main_x 66), 135632#(<= main_x 63), 135633#(<= main_x 64), 135638#(<= main_x 69), 135639#(<= main_x 70), 135636#(<= main_x 67), 135637#(<= main_x 68), 135642#(<= main_x 73), 135643#(<= main_x 74), 135640#(<= main_x 71), 135641#(<= main_x 72), 135646#(<= main_x 77), 135647#(<= main_x 78), 135644#(<= main_x 75), 135645#(<= main_x 76), 135650#(<= main_x 81), 135651#(<= main_x 82), 135648#(<= main_x 79), 135649#(<= main_x 80), 135654#(<= main_x 85), 135655#(<= main_x 86), 135652#(<= main_x 83), 135653#(<= main_x 84), 135658#(<= main_x 89), 135659#(<= main_x 90), 135656#(<= main_x 87), 135657#(<= main_x 88), 135662#(<= main_x 93), 135663#(<= main_x 94), 135660#(<= main_x 91), 135661#(<= main_x 92), 135666#(<= main_x 97), 135667#(<= main_x 98), 135664#(<= main_x 95), 135665#(<= main_x 96), 135670#(<= main_x 101), 135671#(<= main_x 102), 135668#(<= main_x 99), 135669#(<= main_x 100), 135674#(<= main_x 105), 135675#(<= main_x 106), 135672#(<= main_x 103), 135673#(<= main_x 104), 135678#(<= main_x 109), 135679#(<= main_x 110), 135676#(<= main_x 107), 135677#(<= main_x 108)] [2018-07-23 13:58:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 26106 backedges. 0 proven. 26106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:00,735 INFO L450 AbstractCegarLoop]: Interpolant automaton has 231 states [2018-07-23 13:58:00,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 231 interpolants. [2018-07-23 13:58:00,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26565, Invalid=26565, Unknown=0, NotChecked=0, Total=53130 [2018-07-23 13:58:00,739 INFO L87 Difference]: Start difference. First operand 232 states and 232 transitions. Second operand 231 states. [2018-07-23 13:58:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:01,239 INFO L93 Difference]: Finished difference Result 235 states and 235 transitions. [2018-07-23 13:58:01,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2018-07-23 13:58:01,239 INFO L78 Accepts]: Start accepts. Automaton has 231 states. Word has length 231 [2018-07-23 13:58:01,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:01,240 INFO L225 Difference]: With dead ends: 235 [2018-07-23 13:58:01,240 INFO L226 Difference]: Without dead ends: 233 [2018-07-23 13:58:01,242 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=26565, Invalid=26565, Unknown=0, NotChecked=0, Total=53130 [2018-07-23 13:58:01,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-07-23 13:58:01,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2018-07-23 13:58:01,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-07-23 13:58:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 233 transitions. [2018-07-23 13:58:01,244 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 233 transitions. Word has length 231 [2018-07-23 13:58:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:01,245 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 233 transitions. [2018-07-23 13:58:01,245 INFO L472 AbstractCegarLoop]: Interpolant automaton has 231 states. [2018-07-23 13:58:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 233 transitions. [2018-07-23 13:58:01,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-07-23 13:58:01,245 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:01,245 INFO L357 BasicCegarLoop]: trace histogram [229, 1, 1, 1] [2018-07-23 13:58:01,246 INFO L414 AbstractCegarLoop]: === Iteration 230 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:01,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1197020666, now seen corresponding path program 229 times [2018-07-23 13:58:01,246 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:02,699 INFO L134 CoverageAnalysis]: Checked inductivity of 26335 backedges. 0 proven. 26335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:02,700 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:02,700 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [231] total 231 [2018-07-23 13:58:02,700 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:02,701 INFO L185 omatonBuilderFactory]: Interpolants [136734#true, 136735#false, 136738#(<= main_x 2), 136739#(<= main_x 3), 136736#(<= main_x 0), 136737#(<= main_x 1), 136742#(<= main_x 6), 136743#(<= main_x 7), 136740#(<= main_x 4), 136741#(<= main_x 5), 136746#(<= main_x 10), 136747#(<= main_x 11), 136744#(<= main_x 8), 136745#(<= main_x 9), 136750#(<= main_x 14), 136751#(<= main_x 15), 136748#(<= main_x 12), 136749#(<= main_x 13), 136754#(<= main_x 18), 136755#(<= main_x 19), 136752#(<= main_x 16), 136753#(<= main_x 17), 136758#(<= main_x 22), 136759#(<= main_x 23), 136756#(<= main_x 20), 136757#(<= main_x 21), 136762#(<= main_x 26), 136763#(<= main_x 27), 136760#(<= main_x 24), 136761#(<= main_x 25), 136766#(<= main_x 30), 136767#(<= main_x 31), 136764#(<= main_x 28), 136765#(<= main_x 29), 136770#(<= main_x 34), 136771#(<= main_x 35), 136768#(<= main_x 32), 136769#(<= main_x 33), 136774#(<= main_x 38), 136775#(<= main_x 39), 136772#(<= main_x 36), 136773#(<= main_x 37), 136778#(<= main_x 42), 136779#(<= main_x 43), 136776#(<= main_x 40), 136777#(<= main_x 41), 136782#(<= main_x 46), 136783#(<= main_x 47), 136780#(<= main_x 44), 136781#(<= main_x 45), 136786#(<= main_x 50), 136787#(<= main_x 51), 136784#(<= main_x 48), 136785#(<= main_x 49), 136790#(<= main_x 54), 136791#(<= main_x 55), 136788#(<= main_x 52), 136789#(<= main_x 53), 136794#(<= main_x 58), 136795#(<= main_x 59), 136792#(<= main_x 56), 136793#(<= main_x 57), 136798#(<= main_x 62), 136799#(<= main_x 63), 136796#(<= main_x 60), 136797#(<= main_x 61), 136802#(<= main_x 66), 136803#(<= main_x 67), 136800#(<= main_x 64), 136801#(<= main_x 65), 136806#(<= main_x 70), 136807#(<= main_x 71), 136804#(<= main_x 68), 136805#(<= main_x 69), 136810#(<= main_x 74), 136811#(<= main_x 75), 136808#(<= main_x 72), 136809#(<= main_x 73), 136814#(<= main_x 78), 136815#(<= main_x 79), 136812#(<= main_x 76), 136813#(<= main_x 77), 136818#(<= main_x 82), 136819#(<= main_x 83), 136816#(<= main_x 80), 136817#(<= main_x 81), 136822#(<= main_x 86), 136823#(<= main_x 87), 136820#(<= main_x 84), 136821#(<= main_x 85), 136826#(<= main_x 90), 136827#(<= main_x 91), 136824#(<= main_x 88), 136825#(<= main_x 89), 136830#(<= main_x 94), 136831#(<= main_x 95), 136828#(<= main_x 92), 136829#(<= main_x 93), 136834#(<= main_x 98), 136835#(<= main_x 99), 136832#(<= main_x 96), 136833#(<= main_x 97), 136838#(<= main_x 102), 136839#(<= main_x 103), 136836#(<= main_x 100), 136837#(<= main_x 101), 136842#(<= main_x 106), 136843#(<= main_x 107), 136840#(<= main_x 104), 136841#(<= main_x 105), 136846#(<= main_x 110), 136847#(<= main_x 111), 136844#(<= main_x 108), 136845#(<= main_x 109), 136850#(<= main_x 114), 136851#(<= main_x 115), 136848#(<= main_x 112), 136849#(<= main_x 113), 136854#(<= main_x 118), 136855#(<= main_x 119), 136852#(<= main_x 116), 136853#(<= main_x 117), 136858#(<= main_x 122), 136859#(<= main_x 123), 136856#(<= main_x 120), 136857#(<= main_x 121), 136862#(<= main_x 126), 136863#(<= main_x 127), 136860#(<= main_x 124), 136861#(<= main_x 125), 136866#(<= main_x 130), 136867#(<= main_x 131), 136864#(<= main_x 128), 136865#(<= main_x 129), 136870#(<= main_x 134), 136871#(<= main_x 135), 136868#(<= main_x 132), 136869#(<= main_x 133), 136874#(<= main_x 138), 136875#(<= main_x 139), 136872#(<= main_x 136), 136873#(<= main_x 137), 136878#(<= main_x 142), 136879#(<= main_x 143), 136876#(<= main_x 140), 136877#(<= main_x 141), 136882#(<= main_x 146), 136883#(<= main_x 147), 136880#(<= main_x 144), 136881#(<= main_x 145), 136886#(<= main_x 150), 136887#(<= main_x 151), 136884#(<= main_x 148), 136885#(<= main_x 149), 136890#(<= main_x 154), 136891#(<= main_x 155), 136888#(<= main_x 152), 136889#(<= main_x 153), 136894#(<= main_x 158), 136895#(<= main_x 159), 136892#(<= main_x 156), 136893#(<= main_x 157), 136898#(<= main_x 162), 136899#(<= main_x 163), 136896#(<= main_x 160), 136897#(<= main_x 161), 136902#(<= main_x 166), 136903#(<= main_x 167), 136900#(<= main_x 164), 136901#(<= main_x 165), 136906#(<= main_x 170), 136907#(<= main_x 171), 136904#(<= main_x 168), 136905#(<= main_x 169), 136910#(<= main_x 174), 136911#(<= main_x 175), 136908#(<= main_x 172), 136909#(<= main_x 173), 136914#(<= main_x 178), 136915#(<= main_x 179), 136912#(<= main_x 176), 136913#(<= main_x 177), 136918#(<= main_x 182), 136919#(<= main_x 183), 136916#(<= main_x 180), 136917#(<= main_x 181), 136922#(<= main_x 186), 136923#(<= main_x 187), 136920#(<= main_x 184), 136921#(<= main_x 185), 136926#(<= main_x 190), 136927#(<= main_x 191), 136924#(<= main_x 188), 136925#(<= main_x 189), 136930#(<= main_x 194), 136931#(<= main_x 195), 136928#(<= main_x 192), 136929#(<= main_x 193), 136934#(<= main_x 198), 136935#(<= main_x 199), 136932#(<= main_x 196), 136933#(<= main_x 197), 136938#(<= main_x 202), 136939#(<= main_x 203), 136936#(<= main_x 200), 136937#(<= main_x 201), 136942#(<= main_x 206), 136943#(<= main_x 207), 136940#(<= main_x 204), 136941#(<= main_x 205), 136946#(<= main_x 210), 136947#(<= main_x 211), 136944#(<= main_x 208), 136945#(<= main_x 209), 136950#(<= main_x 214), 136951#(<= main_x 215), 136948#(<= main_x 212), 136949#(<= main_x 213), 136954#(<= main_x 218), 136955#(<= main_x 219), 136952#(<= main_x 216), 136953#(<= main_x 217), 136958#(<= main_x 222), 136959#(<= main_x 223), 136956#(<= main_x 220), 136957#(<= main_x 221), 136962#(<= main_x 226), 136963#(<= main_x 227), 136960#(<= main_x 224), 136961#(<= main_x 225), 136964#(<= main_x 228), 136965#(<= main_x 229)] [2018-07-23 13:58:02,702 INFO L134 CoverageAnalysis]: Checked inductivity of 26335 backedges. 0 proven. 26335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:02,702 INFO L450 AbstractCegarLoop]: Interpolant automaton has 232 states [2018-07-23 13:58:02,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 232 interpolants. [2018-07-23 13:58:02,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26796, Invalid=26796, Unknown=0, NotChecked=0, Total=53592 [2018-07-23 13:58:02,707 INFO L87 Difference]: Start difference. First operand 233 states and 233 transitions. Second operand 232 states. [2018-07-23 13:58:04,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:04,399 INFO L93 Difference]: Finished difference Result 236 states and 236 transitions. [2018-07-23 13:58:04,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 232 states. [2018-07-23 13:58:04,400 INFO L78 Accepts]: Start accepts. Automaton has 232 states. Word has length 232 [2018-07-23 13:58:04,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:04,400 INFO L225 Difference]: With dead ends: 236 [2018-07-23 13:58:04,400 INFO L226 Difference]: Without dead ends: 234 [2018-07-23 13:58:04,403 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26796, Invalid=26796, Unknown=0, NotChecked=0, Total=53592 [2018-07-23 13:58:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-07-23 13:58:04,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2018-07-23 13:58:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-07-23 13:58:04,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 234 transitions. [2018-07-23 13:58:04,406 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 234 transitions. Word has length 232 [2018-07-23 13:58:04,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:04,406 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 234 transitions. [2018-07-23 13:58:04,406 INFO L472 AbstractCegarLoop]: Interpolant automaton has 232 states. [2018-07-23 13:58:04,406 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 234 transitions. [2018-07-23 13:58:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-07-23 13:58:04,407 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:04,407 INFO L357 BasicCegarLoop]: trace histogram [230, 1, 1, 1] [2018-07-23 13:58:04,407 INFO L414 AbstractCegarLoop]: === Iteration 231 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:04,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1547061152, now seen corresponding path program 230 times [2018-07-23 13:58:04,407 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 26565 backedges. 0 proven. 26565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:06,031 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:06,031 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [232] total 232 [2018-07-23 13:58:06,031 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:06,031 INFO L185 omatonBuilderFactory]: Interpolants [137906#true, 137907#false, 137910#(<= main_x 2), 137911#(<= main_x 3), 137908#(<= main_x 0), 137909#(<= main_x 1), 137914#(<= main_x 6), 137915#(<= main_x 7), 137912#(<= main_x 4), 137913#(<= main_x 5), 137918#(<= main_x 10), 137919#(<= main_x 11), 137916#(<= main_x 8), 137917#(<= main_x 9), 137922#(<= main_x 14), 137923#(<= main_x 15), 137920#(<= main_x 12), 137921#(<= main_x 13), 137926#(<= main_x 18), 137927#(<= main_x 19), 137924#(<= main_x 16), 137925#(<= main_x 17), 137930#(<= main_x 22), 137931#(<= main_x 23), 137928#(<= main_x 20), 137929#(<= main_x 21), 137934#(<= main_x 26), 137935#(<= main_x 27), 137932#(<= main_x 24), 137933#(<= main_x 25), 137938#(<= main_x 30), 137939#(<= main_x 31), 137936#(<= main_x 28), 137937#(<= main_x 29), 137942#(<= main_x 34), 137943#(<= main_x 35), 137940#(<= main_x 32), 137941#(<= main_x 33), 137946#(<= main_x 38), 137947#(<= main_x 39), 137944#(<= main_x 36), 137945#(<= main_x 37), 137950#(<= main_x 42), 137951#(<= main_x 43), 137948#(<= main_x 40), 137949#(<= main_x 41), 137954#(<= main_x 46), 137955#(<= main_x 47), 137952#(<= main_x 44), 137953#(<= main_x 45), 137958#(<= main_x 50), 137959#(<= main_x 51), 137956#(<= main_x 48), 137957#(<= main_x 49), 137962#(<= main_x 54), 137963#(<= main_x 55), 137960#(<= main_x 52), 137961#(<= main_x 53), 137966#(<= main_x 58), 137967#(<= main_x 59), 137964#(<= main_x 56), 137965#(<= main_x 57), 137970#(<= main_x 62), 137971#(<= main_x 63), 137968#(<= main_x 60), 137969#(<= main_x 61), 137974#(<= main_x 66), 137975#(<= main_x 67), 137972#(<= main_x 64), 137973#(<= main_x 65), 137978#(<= main_x 70), 137979#(<= main_x 71), 137976#(<= main_x 68), 137977#(<= main_x 69), 137982#(<= main_x 74), 137983#(<= main_x 75), 137980#(<= main_x 72), 137981#(<= main_x 73), 137986#(<= main_x 78), 137987#(<= main_x 79), 137984#(<= main_x 76), 137985#(<= main_x 77), 137990#(<= main_x 82), 137991#(<= main_x 83), 137988#(<= main_x 80), 137989#(<= main_x 81), 137994#(<= main_x 86), 137995#(<= main_x 87), 137992#(<= main_x 84), 137993#(<= main_x 85), 137998#(<= main_x 90), 137999#(<= main_x 91), 137996#(<= main_x 88), 137997#(<= main_x 89), 138002#(<= main_x 94), 138003#(<= main_x 95), 138000#(<= main_x 92), 138001#(<= main_x 93), 138006#(<= main_x 98), 138007#(<= main_x 99), 138004#(<= main_x 96), 138005#(<= main_x 97), 138010#(<= main_x 102), 138011#(<= main_x 103), 138008#(<= main_x 100), 138009#(<= main_x 101), 138014#(<= main_x 106), 138015#(<= main_x 107), 138012#(<= main_x 104), 138013#(<= main_x 105), 138018#(<= main_x 110), 138019#(<= main_x 111), 138016#(<= main_x 108), 138017#(<= main_x 109), 138022#(<= main_x 114), 138023#(<= main_x 115), 138020#(<= main_x 112), 138021#(<= main_x 113), 138026#(<= main_x 118), 138027#(<= main_x 119), 138024#(<= main_x 116), 138025#(<= main_x 117), 138030#(<= main_x 122), 138031#(<= main_x 123), 138028#(<= main_x 120), 138029#(<= main_x 121), 138034#(<= main_x 126), 138035#(<= main_x 127), 138032#(<= main_x 124), 138033#(<= main_x 125), 138038#(<= main_x 130), 138039#(<= main_x 131), 138036#(<= main_x 128), 138037#(<= main_x 129), 138042#(<= main_x 134), 138043#(<= main_x 135), 138040#(<= main_x 132), 138041#(<= main_x 133), 138046#(<= main_x 138), 138047#(<= main_x 139), 138044#(<= main_x 136), 138045#(<= main_x 137), 138050#(<= main_x 142), 138051#(<= main_x 143), 138048#(<= main_x 140), 138049#(<= main_x 141), 138054#(<= main_x 146), 138055#(<= main_x 147), 138052#(<= main_x 144), 138053#(<= main_x 145), 138058#(<= main_x 150), 138059#(<= main_x 151), 138056#(<= main_x 148), 138057#(<= main_x 149), 138062#(<= main_x 154), 138063#(<= main_x 155), 138060#(<= main_x 152), 138061#(<= main_x 153), 138066#(<= main_x 158), 138067#(<= main_x 159), 138064#(<= main_x 156), 138065#(<= main_x 157), 138070#(<= main_x 162), 138071#(<= main_x 163), 138068#(<= main_x 160), 138069#(<= main_x 161), 138074#(<= main_x 166), 138075#(<= main_x 167), 138072#(<= main_x 164), 138073#(<= main_x 165), 138078#(<= main_x 170), 138079#(<= main_x 171), 138076#(<= main_x 168), 138077#(<= main_x 169), 138082#(<= main_x 174), 138083#(<= main_x 175), 138080#(<= main_x 172), 138081#(<= main_x 173), 138086#(<= main_x 178), 138087#(<= main_x 179), 138084#(<= main_x 176), 138085#(<= main_x 177), 138090#(<= main_x 182), 138091#(<= main_x 183), 138088#(<= main_x 180), 138089#(<= main_x 181), 138094#(<= main_x 186), 138095#(<= main_x 187), 138092#(<= main_x 184), 138093#(<= main_x 185), 138098#(<= main_x 190), 138099#(<= main_x 191), 138096#(<= main_x 188), 138097#(<= main_x 189), 138102#(<= main_x 194), 138103#(<= main_x 195), 138100#(<= main_x 192), 138101#(<= main_x 193), 138106#(<= main_x 198), 138107#(<= main_x 199), 138104#(<= main_x 196), 138105#(<= main_x 197), 138110#(<= main_x 202), 138111#(<= main_x 203), 138108#(<= main_x 200), 138109#(<= main_x 201), 138114#(<= main_x 206), 138115#(<= main_x 207), 138112#(<= main_x 204), 138113#(<= main_x 205), 138118#(<= main_x 210), 138119#(<= main_x 211), 138116#(<= main_x 208), 138117#(<= main_x 209), 138122#(<= main_x 214), 138123#(<= main_x 215), 138120#(<= main_x 212), 138121#(<= main_x 213), 138126#(<= main_x 218), 138127#(<= main_x 219), 138124#(<= main_x 216), 138125#(<= main_x 217), 138130#(<= main_x 222), 138131#(<= main_x 223), 138128#(<= main_x 220), 138129#(<= main_x 221), 138134#(<= main_x 226), 138135#(<= main_x 227), 138132#(<= main_x 224), 138133#(<= main_x 225), 138138#(<= main_x 230), 138136#(<= main_x 228), 138137#(<= main_x 229)] [2018-07-23 13:58:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 26565 backedges. 0 proven. 26565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:06,033 INFO L450 AbstractCegarLoop]: Interpolant automaton has 233 states [2018-07-23 13:58:06,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 233 interpolants. [2018-07-23 13:58:06,037 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27028, Invalid=27028, Unknown=0, NotChecked=0, Total=54056 [2018-07-23 13:58:06,037 INFO L87 Difference]: Start difference. First operand 234 states and 234 transitions. Second operand 233 states. [2018-07-23 13:58:07,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:07,471 INFO L93 Difference]: Finished difference Result 237 states and 237 transitions. [2018-07-23 13:58:07,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2018-07-23 13:58:07,471 INFO L78 Accepts]: Start accepts. Automaton has 233 states. Word has length 233 [2018-07-23 13:58:07,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:07,471 INFO L225 Difference]: With dead ends: 237 [2018-07-23 13:58:07,471 INFO L226 Difference]: Without dead ends: 235 [2018-07-23 13:58:07,473 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27028, Invalid=27028, Unknown=0, NotChecked=0, Total=54056 [2018-07-23 13:58:07,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-07-23 13:58:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2018-07-23 13:58:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-07-23 13:58:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 235 transitions. [2018-07-23 13:58:07,476 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 235 transitions. Word has length 233 [2018-07-23 13:58:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:07,476 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 235 transitions. [2018-07-23 13:58:07,476 INFO L472 AbstractCegarLoop]: Interpolant automaton has 233 states. [2018-07-23 13:58:07,476 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 235 transitions. [2018-07-23 13:58:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-23 13:58:07,477 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:07,477 INFO L357 BasicCegarLoop]: trace histogram [231, 1, 1, 1] [2018-07-23 13:58:07,477 INFO L414 AbstractCegarLoop]: === Iteration 232 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:07,477 INFO L82 PathProgramCache]: Analyzing trace with hash 714251590, now seen corresponding path program 231 times [2018-07-23 13:58:07,477 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 26796 backedges. 0 proven. 26796 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:09,169 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:09,170 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [233] total 233 [2018-07-23 13:58:09,170 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:09,170 INFO L185 omatonBuilderFactory]: Interpolants [139266#(<= main_x 181), 139267#(<= main_x 182), 139264#(<= main_x 179), 139265#(<= main_x 180), 139270#(<= main_x 185), 139271#(<= main_x 186), 139268#(<= main_x 183), 139269#(<= main_x 184), 139274#(<= main_x 189), 139275#(<= main_x 190), 139272#(<= main_x 187), 139273#(<= main_x 188), 139278#(<= main_x 193), 139279#(<= main_x 194), 139276#(<= main_x 191), 139277#(<= main_x 192), 139282#(<= main_x 197), 139283#(<= main_x 198), 139280#(<= main_x 195), 139281#(<= main_x 196), 139286#(<= main_x 201), 139287#(<= main_x 202), 139284#(<= main_x 199), 139285#(<= main_x 200), 139290#(<= main_x 205), 139291#(<= main_x 206), 139288#(<= main_x 203), 139289#(<= main_x 204), 139294#(<= main_x 209), 139295#(<= main_x 210), 139292#(<= main_x 207), 139293#(<= main_x 208), 139298#(<= main_x 213), 139299#(<= main_x 214), 139296#(<= main_x 211), 139297#(<= main_x 212), 139302#(<= main_x 217), 139303#(<= main_x 218), 139300#(<= main_x 215), 139301#(<= main_x 216), 139306#(<= main_x 221), 139307#(<= main_x 222), 139304#(<= main_x 219), 139305#(<= main_x 220), 139310#(<= main_x 225), 139311#(<= main_x 226), 139308#(<= main_x 223), 139309#(<= main_x 224), 139314#(<= main_x 229), 139315#(<= main_x 230), 139312#(<= main_x 227), 139313#(<= main_x 228), 139316#(<= main_x 231), 139083#true, 139086#(<= main_x 1), 139087#(<= main_x 2), 139084#false, 139085#(<= main_x 0), 139090#(<= main_x 5), 139091#(<= main_x 6), 139088#(<= main_x 3), 139089#(<= main_x 4), 139094#(<= main_x 9), 139095#(<= main_x 10), 139092#(<= main_x 7), 139093#(<= main_x 8), 139098#(<= main_x 13), 139099#(<= main_x 14), 139096#(<= main_x 11), 139097#(<= main_x 12), 139102#(<= main_x 17), 139103#(<= main_x 18), 139100#(<= main_x 15), 139101#(<= main_x 16), 139106#(<= main_x 21), 139107#(<= main_x 22), 139104#(<= main_x 19), 139105#(<= main_x 20), 139110#(<= main_x 25), 139111#(<= main_x 26), 139108#(<= main_x 23), 139109#(<= main_x 24), 139114#(<= main_x 29), 139115#(<= main_x 30), 139112#(<= main_x 27), 139113#(<= main_x 28), 139118#(<= main_x 33), 139119#(<= main_x 34), 139116#(<= main_x 31), 139117#(<= main_x 32), 139122#(<= main_x 37), 139123#(<= main_x 38), 139120#(<= main_x 35), 139121#(<= main_x 36), 139126#(<= main_x 41), 139127#(<= main_x 42), 139124#(<= main_x 39), 139125#(<= main_x 40), 139130#(<= main_x 45), 139131#(<= main_x 46), 139128#(<= main_x 43), 139129#(<= main_x 44), 139134#(<= main_x 49), 139135#(<= main_x 50), 139132#(<= main_x 47), 139133#(<= main_x 48), 139138#(<= main_x 53), 139139#(<= main_x 54), 139136#(<= main_x 51), 139137#(<= main_x 52), 139142#(<= main_x 57), 139143#(<= main_x 58), 139140#(<= main_x 55), 139141#(<= main_x 56), 139146#(<= main_x 61), 139147#(<= main_x 62), 139144#(<= main_x 59), 139145#(<= main_x 60), 139150#(<= main_x 65), 139151#(<= main_x 66), 139148#(<= main_x 63), 139149#(<= main_x 64), 139154#(<= main_x 69), 139155#(<= main_x 70), 139152#(<= main_x 67), 139153#(<= main_x 68), 139158#(<= main_x 73), 139159#(<= main_x 74), 139156#(<= main_x 71), 139157#(<= main_x 72), 139162#(<= main_x 77), 139163#(<= main_x 78), 139160#(<= main_x 75), 139161#(<= main_x 76), 139166#(<= main_x 81), 139167#(<= main_x 82), 139164#(<= main_x 79), 139165#(<= main_x 80), 139170#(<= main_x 85), 139171#(<= main_x 86), 139168#(<= main_x 83), 139169#(<= main_x 84), 139174#(<= main_x 89), 139175#(<= main_x 90), 139172#(<= main_x 87), 139173#(<= main_x 88), 139178#(<= main_x 93), 139179#(<= main_x 94), 139176#(<= main_x 91), 139177#(<= main_x 92), 139182#(<= main_x 97), 139183#(<= main_x 98), 139180#(<= main_x 95), 139181#(<= main_x 96), 139186#(<= main_x 101), 139187#(<= main_x 102), 139184#(<= main_x 99), 139185#(<= main_x 100), 139190#(<= main_x 105), 139191#(<= main_x 106), 139188#(<= main_x 103), 139189#(<= main_x 104), 139194#(<= main_x 109), 139195#(<= main_x 110), 139192#(<= main_x 107), 139193#(<= main_x 108), 139198#(<= main_x 113), 139199#(<= main_x 114), 139196#(<= main_x 111), 139197#(<= main_x 112), 139202#(<= main_x 117), 139203#(<= main_x 118), 139200#(<= main_x 115), 139201#(<= main_x 116), 139206#(<= main_x 121), 139207#(<= main_x 122), 139204#(<= main_x 119), 139205#(<= main_x 120), 139210#(<= main_x 125), 139211#(<= main_x 126), 139208#(<= main_x 123), 139209#(<= main_x 124), 139214#(<= main_x 129), 139215#(<= main_x 130), 139212#(<= main_x 127), 139213#(<= main_x 128), 139218#(<= main_x 133), 139219#(<= main_x 134), 139216#(<= main_x 131), 139217#(<= main_x 132), 139222#(<= main_x 137), 139223#(<= main_x 138), 139220#(<= main_x 135), 139221#(<= main_x 136), 139226#(<= main_x 141), 139227#(<= main_x 142), 139224#(<= main_x 139), 139225#(<= main_x 140), 139230#(<= main_x 145), 139231#(<= main_x 146), 139228#(<= main_x 143), 139229#(<= main_x 144), 139234#(<= main_x 149), 139235#(<= main_x 150), 139232#(<= main_x 147), 139233#(<= main_x 148), 139238#(<= main_x 153), 139239#(<= main_x 154), 139236#(<= main_x 151), 139237#(<= main_x 152), 139242#(<= main_x 157), 139243#(<= main_x 158), 139240#(<= main_x 155), 139241#(<= main_x 156), 139246#(<= main_x 161), 139247#(<= main_x 162), 139244#(<= main_x 159), 139245#(<= main_x 160), 139250#(<= main_x 165), 139251#(<= main_x 166), 139248#(<= main_x 163), 139249#(<= main_x 164), 139254#(<= main_x 169), 139255#(<= main_x 170), 139252#(<= main_x 167), 139253#(<= main_x 168), 139258#(<= main_x 173), 139259#(<= main_x 174), 139256#(<= main_x 171), 139257#(<= main_x 172), 139262#(<= main_x 177), 139263#(<= main_x 178), 139260#(<= main_x 175), 139261#(<= main_x 176)] [2018-07-23 13:58:09,171 INFO L134 CoverageAnalysis]: Checked inductivity of 26796 backedges. 0 proven. 26796 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:09,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 234 states [2018-07-23 13:58:09,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 234 interpolants. [2018-07-23 13:58:09,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27261, Invalid=27261, Unknown=0, NotChecked=0, Total=54522 [2018-07-23 13:58:09,177 INFO L87 Difference]: Start difference. First operand 235 states and 235 transitions. Second operand 234 states. [2018-07-23 13:58:10,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:10,139 INFO L93 Difference]: Finished difference Result 238 states and 238 transitions. [2018-07-23 13:58:10,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2018-07-23 13:58:10,140 INFO L78 Accepts]: Start accepts. Automaton has 234 states. Word has length 234 [2018-07-23 13:58:10,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:10,140 INFO L225 Difference]: With dead ends: 238 [2018-07-23 13:58:10,140 INFO L226 Difference]: Without dead ends: 236 [2018-07-23 13:58:10,143 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27261, Invalid=27261, Unknown=0, NotChecked=0, Total=54522 [2018-07-23 13:58:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-07-23 13:58:10,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2018-07-23 13:58:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-07-23 13:58:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2018-07-23 13:58:10,146 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 234 [2018-07-23 13:58:10,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:10,146 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2018-07-23 13:58:10,146 INFO L472 AbstractCegarLoop]: Interpolant automaton has 234 states. [2018-07-23 13:58:10,146 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2018-07-23 13:58:10,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-07-23 13:58:10,147 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:10,147 INFO L357 BasicCegarLoop]: trace histogram [232, 1, 1, 1] [2018-07-23 13:58:10,147 INFO L414 AbstractCegarLoop]: === Iteration 233 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:10,147 INFO L82 PathProgramCache]: Analyzing trace with hash 666958944, now seen corresponding path program 232 times [2018-07-23 13:58:10,147 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 27028 backedges. 0 proven. 27028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:11,816 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:11,816 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [234] total 234 [2018-07-23 13:58:11,817 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:11,817 INFO L185 omatonBuilderFactory]: Interpolants [140290#(<= main_x 23), 140291#(<= main_x 24), 140288#(<= main_x 21), 140289#(<= main_x 22), 140294#(<= main_x 27), 140295#(<= main_x 28), 140292#(<= main_x 25), 140293#(<= main_x 26), 140298#(<= main_x 31), 140299#(<= main_x 32), 140296#(<= main_x 29), 140297#(<= main_x 30), 140302#(<= main_x 35), 140303#(<= main_x 36), 140300#(<= main_x 33), 140301#(<= main_x 34), 140306#(<= main_x 39), 140307#(<= main_x 40), 140304#(<= main_x 37), 140305#(<= main_x 38), 140310#(<= main_x 43), 140311#(<= main_x 44), 140308#(<= main_x 41), 140309#(<= main_x 42), 140314#(<= main_x 47), 140315#(<= main_x 48), 140312#(<= main_x 45), 140313#(<= main_x 46), 140318#(<= main_x 51), 140319#(<= main_x 52), 140316#(<= main_x 49), 140317#(<= main_x 50), 140322#(<= main_x 55), 140323#(<= main_x 56), 140320#(<= main_x 53), 140321#(<= main_x 54), 140326#(<= main_x 59), 140327#(<= main_x 60), 140324#(<= main_x 57), 140325#(<= main_x 58), 140330#(<= main_x 63), 140331#(<= main_x 64), 140328#(<= main_x 61), 140329#(<= main_x 62), 140334#(<= main_x 67), 140335#(<= main_x 68), 140332#(<= main_x 65), 140333#(<= main_x 66), 140338#(<= main_x 71), 140339#(<= main_x 72), 140336#(<= main_x 69), 140337#(<= main_x 70), 140342#(<= main_x 75), 140343#(<= main_x 76), 140340#(<= main_x 73), 140341#(<= main_x 74), 140346#(<= main_x 79), 140347#(<= main_x 80), 140344#(<= main_x 77), 140345#(<= main_x 78), 140350#(<= main_x 83), 140351#(<= main_x 84), 140348#(<= main_x 81), 140349#(<= main_x 82), 140354#(<= main_x 87), 140355#(<= main_x 88), 140352#(<= main_x 85), 140353#(<= main_x 86), 140358#(<= main_x 91), 140359#(<= main_x 92), 140356#(<= main_x 89), 140357#(<= main_x 90), 140362#(<= main_x 95), 140363#(<= main_x 96), 140360#(<= main_x 93), 140361#(<= main_x 94), 140366#(<= main_x 99), 140367#(<= main_x 100), 140364#(<= main_x 97), 140365#(<= main_x 98), 140370#(<= main_x 103), 140371#(<= main_x 104), 140368#(<= main_x 101), 140369#(<= main_x 102), 140374#(<= main_x 107), 140375#(<= main_x 108), 140372#(<= main_x 105), 140373#(<= main_x 106), 140378#(<= main_x 111), 140379#(<= main_x 112), 140376#(<= main_x 109), 140377#(<= main_x 110), 140382#(<= main_x 115), 140383#(<= main_x 116), 140380#(<= main_x 113), 140381#(<= main_x 114), 140386#(<= main_x 119), 140387#(<= main_x 120), 140384#(<= main_x 117), 140385#(<= main_x 118), 140390#(<= main_x 123), 140391#(<= main_x 124), 140388#(<= main_x 121), 140389#(<= main_x 122), 140394#(<= main_x 127), 140395#(<= main_x 128), 140392#(<= main_x 125), 140393#(<= main_x 126), 140398#(<= main_x 131), 140399#(<= main_x 132), 140396#(<= main_x 129), 140397#(<= main_x 130), 140402#(<= main_x 135), 140403#(<= main_x 136), 140400#(<= main_x 133), 140401#(<= main_x 134), 140406#(<= main_x 139), 140407#(<= main_x 140), 140404#(<= main_x 137), 140405#(<= main_x 138), 140410#(<= main_x 143), 140411#(<= main_x 144), 140408#(<= main_x 141), 140409#(<= main_x 142), 140414#(<= main_x 147), 140415#(<= main_x 148), 140412#(<= main_x 145), 140413#(<= main_x 146), 140418#(<= main_x 151), 140419#(<= main_x 152), 140416#(<= main_x 149), 140417#(<= main_x 150), 140422#(<= main_x 155), 140423#(<= main_x 156), 140420#(<= main_x 153), 140421#(<= main_x 154), 140426#(<= main_x 159), 140427#(<= main_x 160), 140424#(<= main_x 157), 140425#(<= main_x 158), 140430#(<= main_x 163), 140431#(<= main_x 164), 140428#(<= main_x 161), 140429#(<= main_x 162), 140434#(<= main_x 167), 140435#(<= main_x 168), 140432#(<= main_x 165), 140433#(<= main_x 166), 140438#(<= main_x 171), 140439#(<= main_x 172), 140436#(<= main_x 169), 140437#(<= main_x 170), 140442#(<= main_x 175), 140443#(<= main_x 176), 140440#(<= main_x 173), 140441#(<= main_x 174), 140446#(<= main_x 179), 140447#(<= main_x 180), 140444#(<= main_x 177), 140445#(<= main_x 178), 140450#(<= main_x 183), 140451#(<= main_x 184), 140448#(<= main_x 181), 140449#(<= main_x 182), 140454#(<= main_x 187), 140455#(<= main_x 188), 140452#(<= main_x 185), 140453#(<= main_x 186), 140458#(<= main_x 191), 140459#(<= main_x 192), 140456#(<= main_x 189), 140457#(<= main_x 190), 140462#(<= main_x 195), 140463#(<= main_x 196), 140460#(<= main_x 193), 140461#(<= main_x 194), 140466#(<= main_x 199), 140467#(<= main_x 200), 140464#(<= main_x 197), 140465#(<= main_x 198), 140470#(<= main_x 203), 140471#(<= main_x 204), 140468#(<= main_x 201), 140469#(<= main_x 202), 140474#(<= main_x 207), 140475#(<= main_x 208), 140472#(<= main_x 205), 140473#(<= main_x 206), 140478#(<= main_x 211), 140479#(<= main_x 212), 140476#(<= main_x 209), 140477#(<= main_x 210), 140482#(<= main_x 215), 140483#(<= main_x 216), 140480#(<= main_x 213), 140481#(<= main_x 214), 140486#(<= main_x 219), 140487#(<= main_x 220), 140484#(<= main_x 217), 140485#(<= main_x 218), 140490#(<= main_x 223), 140491#(<= main_x 224), 140488#(<= main_x 221), 140489#(<= main_x 222), 140494#(<= main_x 227), 140495#(<= main_x 228), 140492#(<= main_x 225), 140493#(<= main_x 226), 140498#(<= main_x 231), 140499#(<= main_x 232), 140496#(<= main_x 229), 140497#(<= main_x 230), 140266#false, 140267#(<= main_x 0), 140265#true, 140270#(<= main_x 3), 140271#(<= main_x 4), 140268#(<= main_x 1), 140269#(<= main_x 2), 140274#(<= main_x 7), 140275#(<= main_x 8), 140272#(<= main_x 5), 140273#(<= main_x 6), 140278#(<= main_x 11), 140279#(<= main_x 12), 140276#(<= main_x 9), 140277#(<= main_x 10), 140282#(<= main_x 15), 140283#(<= main_x 16), 140280#(<= main_x 13), 140281#(<= main_x 14), 140286#(<= main_x 19), 140287#(<= main_x 20), 140284#(<= main_x 17), 140285#(<= main_x 18)] [2018-07-23 13:58:11,818 INFO L134 CoverageAnalysis]: Checked inductivity of 27028 backedges. 0 proven. 27028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:11,818 INFO L450 AbstractCegarLoop]: Interpolant automaton has 235 states [2018-07-23 13:58:11,822 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 235 interpolants. [2018-07-23 13:58:11,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27495, Invalid=27495, Unknown=0, NotChecked=0, Total=54990 [2018-07-23 13:58:11,824 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand 235 states. [2018-07-23 13:58:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:13,596 INFO L93 Difference]: Finished difference Result 239 states and 239 transitions. [2018-07-23 13:58:13,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 235 states. [2018-07-23 13:58:13,596 INFO L78 Accepts]: Start accepts. Automaton has 235 states. Word has length 235 [2018-07-23 13:58:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:13,597 INFO L225 Difference]: With dead ends: 239 [2018-07-23 13:58:13,597 INFO L226 Difference]: Without dead ends: 237 [2018-07-23 13:58:13,600 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27495, Invalid=27495, Unknown=0, NotChecked=0, Total=54990 [2018-07-23 13:58:13,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-07-23 13:58:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2018-07-23 13:58:13,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-07-23 13:58:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2018-07-23 13:58:13,604 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 235 [2018-07-23 13:58:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:13,604 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2018-07-23 13:58:13,604 INFO L472 AbstractCegarLoop]: Interpolant automaton has 235 states. [2018-07-23 13:58:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2018-07-23 13:58:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-07-23 13:58:13,605 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:13,605 INFO L357 BasicCegarLoop]: trace histogram [233, 1, 1, 1] [2018-07-23 13:58:13,605 INFO L414 AbstractCegarLoop]: === Iteration 234 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:13,605 INFO L82 PathProgramCache]: Analyzing trace with hash -799113082, now seen corresponding path program 233 times [2018-07-23 13:58:13,605 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:15,323 INFO L134 CoverageAnalysis]: Checked inductivity of 27261 backedges. 0 proven. 27261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:15,323 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:15,323 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [235] total 235 [2018-07-23 13:58:15,324 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:15,324 INFO L185 omatonBuilderFactory]: Interpolants [141454#(<= main_x 0), 141455#(<= main_x 1), 141452#true, 141453#false, 141458#(<= main_x 4), 141459#(<= main_x 5), 141456#(<= main_x 2), 141457#(<= main_x 3), 141462#(<= main_x 8), 141463#(<= main_x 9), 141460#(<= main_x 6), 141461#(<= main_x 7), 141466#(<= main_x 12), 141467#(<= main_x 13), 141464#(<= main_x 10), 141465#(<= main_x 11), 141470#(<= main_x 16), 141471#(<= main_x 17), 141468#(<= main_x 14), 141469#(<= main_x 15), 141474#(<= main_x 20), 141475#(<= main_x 21), 141472#(<= main_x 18), 141473#(<= main_x 19), 141478#(<= main_x 24), 141479#(<= main_x 25), 141476#(<= main_x 22), 141477#(<= main_x 23), 141482#(<= main_x 28), 141483#(<= main_x 29), 141480#(<= main_x 26), 141481#(<= main_x 27), 141486#(<= main_x 32), 141487#(<= main_x 33), 141484#(<= main_x 30), 141485#(<= main_x 31), 141490#(<= main_x 36), 141491#(<= main_x 37), 141488#(<= main_x 34), 141489#(<= main_x 35), 141494#(<= main_x 40), 141495#(<= main_x 41), 141492#(<= main_x 38), 141493#(<= main_x 39), 141498#(<= main_x 44), 141499#(<= main_x 45), 141496#(<= main_x 42), 141497#(<= main_x 43), 141502#(<= main_x 48), 141503#(<= main_x 49), 141500#(<= main_x 46), 141501#(<= main_x 47), 141506#(<= main_x 52), 141507#(<= main_x 53), 141504#(<= main_x 50), 141505#(<= main_x 51), 141510#(<= main_x 56), 141511#(<= main_x 57), 141508#(<= main_x 54), 141509#(<= main_x 55), 141514#(<= main_x 60), 141515#(<= main_x 61), 141512#(<= main_x 58), 141513#(<= main_x 59), 141518#(<= main_x 64), 141519#(<= main_x 65), 141516#(<= main_x 62), 141517#(<= main_x 63), 141522#(<= main_x 68), 141523#(<= main_x 69), 141520#(<= main_x 66), 141521#(<= main_x 67), 141526#(<= main_x 72), 141527#(<= main_x 73), 141524#(<= main_x 70), 141525#(<= main_x 71), 141530#(<= main_x 76), 141531#(<= main_x 77), 141528#(<= main_x 74), 141529#(<= main_x 75), 141534#(<= main_x 80), 141535#(<= main_x 81), 141532#(<= main_x 78), 141533#(<= main_x 79), 141538#(<= main_x 84), 141539#(<= main_x 85), 141536#(<= main_x 82), 141537#(<= main_x 83), 141542#(<= main_x 88), 141543#(<= main_x 89), 141540#(<= main_x 86), 141541#(<= main_x 87), 141546#(<= main_x 92), 141547#(<= main_x 93), 141544#(<= main_x 90), 141545#(<= main_x 91), 141550#(<= main_x 96), 141551#(<= main_x 97), 141548#(<= main_x 94), 141549#(<= main_x 95), 141554#(<= main_x 100), 141555#(<= main_x 101), 141552#(<= main_x 98), 141553#(<= main_x 99), 141558#(<= main_x 104), 141559#(<= main_x 105), 141556#(<= main_x 102), 141557#(<= main_x 103), 141562#(<= main_x 108), 141563#(<= main_x 109), 141560#(<= main_x 106), 141561#(<= main_x 107), 141566#(<= main_x 112), 141567#(<= main_x 113), 141564#(<= main_x 110), 141565#(<= main_x 111), 141570#(<= main_x 116), 141571#(<= main_x 117), 141568#(<= main_x 114), 141569#(<= main_x 115), 141574#(<= main_x 120), 141575#(<= main_x 121), 141572#(<= main_x 118), 141573#(<= main_x 119), 141578#(<= main_x 124), 141579#(<= main_x 125), 141576#(<= main_x 122), 141577#(<= main_x 123), 141582#(<= main_x 128), 141583#(<= main_x 129), 141580#(<= main_x 126), 141581#(<= main_x 127), 141586#(<= main_x 132), 141587#(<= main_x 133), 141584#(<= main_x 130), 141585#(<= main_x 131), 141590#(<= main_x 136), 141591#(<= main_x 137), 141588#(<= main_x 134), 141589#(<= main_x 135), 141594#(<= main_x 140), 141595#(<= main_x 141), 141592#(<= main_x 138), 141593#(<= main_x 139), 141598#(<= main_x 144), 141599#(<= main_x 145), 141596#(<= main_x 142), 141597#(<= main_x 143), 141602#(<= main_x 148), 141603#(<= main_x 149), 141600#(<= main_x 146), 141601#(<= main_x 147), 141606#(<= main_x 152), 141607#(<= main_x 153), 141604#(<= main_x 150), 141605#(<= main_x 151), 141610#(<= main_x 156), 141611#(<= main_x 157), 141608#(<= main_x 154), 141609#(<= main_x 155), 141614#(<= main_x 160), 141615#(<= main_x 161), 141612#(<= main_x 158), 141613#(<= main_x 159), 141618#(<= main_x 164), 141619#(<= main_x 165), 141616#(<= main_x 162), 141617#(<= main_x 163), 141622#(<= main_x 168), 141623#(<= main_x 169), 141620#(<= main_x 166), 141621#(<= main_x 167), 141626#(<= main_x 172), 141627#(<= main_x 173), 141624#(<= main_x 170), 141625#(<= main_x 171), 141630#(<= main_x 176), 141631#(<= main_x 177), 141628#(<= main_x 174), 141629#(<= main_x 175), 141634#(<= main_x 180), 141635#(<= main_x 181), 141632#(<= main_x 178), 141633#(<= main_x 179), 141638#(<= main_x 184), 141639#(<= main_x 185), 141636#(<= main_x 182), 141637#(<= main_x 183), 141642#(<= main_x 188), 141643#(<= main_x 189), 141640#(<= main_x 186), 141641#(<= main_x 187), 141646#(<= main_x 192), 141647#(<= main_x 193), 141644#(<= main_x 190), 141645#(<= main_x 191), 141650#(<= main_x 196), 141651#(<= main_x 197), 141648#(<= main_x 194), 141649#(<= main_x 195), 141654#(<= main_x 200), 141655#(<= main_x 201), 141652#(<= main_x 198), 141653#(<= main_x 199), 141658#(<= main_x 204), 141659#(<= main_x 205), 141656#(<= main_x 202), 141657#(<= main_x 203), 141662#(<= main_x 208), 141663#(<= main_x 209), 141660#(<= main_x 206), 141661#(<= main_x 207), 141666#(<= main_x 212), 141667#(<= main_x 213), 141664#(<= main_x 210), 141665#(<= main_x 211), 141670#(<= main_x 216), 141671#(<= main_x 217), 141668#(<= main_x 214), 141669#(<= main_x 215), 141674#(<= main_x 220), 141675#(<= main_x 221), 141672#(<= main_x 218), 141673#(<= main_x 219), 141678#(<= main_x 224), 141679#(<= main_x 225), 141676#(<= main_x 222), 141677#(<= main_x 223), 141682#(<= main_x 228), 141683#(<= main_x 229), 141680#(<= main_x 226), 141681#(<= main_x 227), 141686#(<= main_x 232), 141687#(<= main_x 233), 141684#(<= main_x 230), 141685#(<= main_x 231)] [2018-07-23 13:58:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 27261 backedges. 0 proven. 27261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:15,326 INFO L450 AbstractCegarLoop]: Interpolant automaton has 236 states [2018-07-23 13:58:15,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 236 interpolants. [2018-07-23 13:58:15,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27730, Invalid=27730, Unknown=0, NotChecked=0, Total=55460 [2018-07-23 13:58:15,332 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand 236 states. [2018-07-23 13:58:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:16,318 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2018-07-23 13:58:16,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 236 states. [2018-07-23 13:58:16,318 INFO L78 Accepts]: Start accepts. Automaton has 236 states. Word has length 236 [2018-07-23 13:58:16,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:16,318 INFO L225 Difference]: With dead ends: 240 [2018-07-23 13:58:16,319 INFO L226 Difference]: Without dead ends: 238 [2018-07-23 13:58:16,320 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27730, Invalid=27730, Unknown=0, NotChecked=0, Total=55460 [2018-07-23 13:58:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-07-23 13:58:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-07-23 13:58:16,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-07-23 13:58:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 238 transitions. [2018-07-23 13:58:16,322 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 238 transitions. Word has length 236 [2018-07-23 13:58:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:16,322 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 238 transitions. [2018-07-23 13:58:16,322 INFO L472 AbstractCegarLoop]: Interpolant automaton has 236 states. [2018-07-23 13:58:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 238 transitions. [2018-07-23 13:58:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-07-23 13:58:16,323 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:16,323 INFO L357 BasicCegarLoop]: trace histogram [234, 1, 1, 1] [2018-07-23 13:58:16,323 INFO L414 AbstractCegarLoop]: === Iteration 235 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash 997294368, now seen corresponding path program 234 times [2018-07-23 13:58:16,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 27495 backedges. 0 proven. 27495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:18,042 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:18,042 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [236] total 236 [2018-07-23 13:58:18,042 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:18,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:18,043 INFO L185 omatonBuilderFactory]: Interpolants [142850#(<= main_x 204), 142851#(<= main_x 205), 142848#(<= main_x 202), 142849#(<= main_x 203), 142854#(<= main_x 208), 142855#(<= main_x 209), 142852#(<= main_x 206), 142853#(<= main_x 207), 142858#(<= main_x 212), 142859#(<= main_x 213), 142856#(<= main_x 210), 142857#(<= main_x 211), 142862#(<= main_x 216), 142863#(<= main_x 217), 142860#(<= main_x 214), 142861#(<= main_x 215), 142866#(<= main_x 220), 142867#(<= main_x 221), 142864#(<= main_x 218), 142865#(<= main_x 219), 142870#(<= main_x 224), 142871#(<= main_x 225), 142868#(<= main_x 222), 142869#(<= main_x 223), 142874#(<= main_x 228), 142875#(<= main_x 229), 142872#(<= main_x 226), 142873#(<= main_x 227), 142878#(<= main_x 232), 142879#(<= main_x 233), 142876#(<= main_x 230), 142877#(<= main_x 231), 142880#(<= main_x 234), 142646#(<= main_x 0), 142647#(<= main_x 1), 142644#true, 142645#false, 142650#(<= main_x 4), 142651#(<= main_x 5), 142648#(<= main_x 2), 142649#(<= main_x 3), 142654#(<= main_x 8), 142655#(<= main_x 9), 142652#(<= main_x 6), 142653#(<= main_x 7), 142658#(<= main_x 12), 142659#(<= main_x 13), 142656#(<= main_x 10), 142657#(<= main_x 11), 142662#(<= main_x 16), 142663#(<= main_x 17), 142660#(<= main_x 14), 142661#(<= main_x 15), 142666#(<= main_x 20), 142667#(<= main_x 21), 142664#(<= main_x 18), 142665#(<= main_x 19), 142670#(<= main_x 24), 142671#(<= main_x 25), 142668#(<= main_x 22), 142669#(<= main_x 23), 142674#(<= main_x 28), 142675#(<= main_x 29), 142672#(<= main_x 26), 142673#(<= main_x 27), 142678#(<= main_x 32), 142679#(<= main_x 33), 142676#(<= main_x 30), 142677#(<= main_x 31), 142682#(<= main_x 36), 142683#(<= main_x 37), 142680#(<= main_x 34), 142681#(<= main_x 35), 142686#(<= main_x 40), 142687#(<= main_x 41), 142684#(<= main_x 38), 142685#(<= main_x 39), 142690#(<= main_x 44), 142691#(<= main_x 45), 142688#(<= main_x 42), 142689#(<= main_x 43), 142694#(<= main_x 48), 142695#(<= main_x 49), 142692#(<= main_x 46), 142693#(<= main_x 47), 142698#(<= main_x 52), 142699#(<= main_x 53), 142696#(<= main_x 50), 142697#(<= main_x 51), 142702#(<= main_x 56), 142703#(<= main_x 57), 142700#(<= main_x 54), 142701#(<= main_x 55), 142706#(<= main_x 60), 142707#(<= main_x 61), 142704#(<= main_x 58), 142705#(<= main_x 59), 142710#(<= main_x 64), 142711#(<= main_x 65), 142708#(<= main_x 62), 142709#(<= main_x 63), 142714#(<= main_x 68), 142715#(<= main_x 69), 142712#(<= main_x 66), 142713#(<= main_x 67), 142718#(<= main_x 72), 142719#(<= main_x 73), 142716#(<= main_x 70), 142717#(<= main_x 71), 142722#(<= main_x 76), 142723#(<= main_x 77), 142720#(<= main_x 74), 142721#(<= main_x 75), 142726#(<= main_x 80), 142727#(<= main_x 81), 142724#(<= main_x 78), 142725#(<= main_x 79), 142730#(<= main_x 84), 142731#(<= main_x 85), 142728#(<= main_x 82), 142729#(<= main_x 83), 142734#(<= main_x 88), 142735#(<= main_x 89), 142732#(<= main_x 86), 142733#(<= main_x 87), 142738#(<= main_x 92), 142739#(<= main_x 93), 142736#(<= main_x 90), 142737#(<= main_x 91), 142742#(<= main_x 96), 142743#(<= main_x 97), 142740#(<= main_x 94), 142741#(<= main_x 95), 142746#(<= main_x 100), 142747#(<= main_x 101), 142744#(<= main_x 98), 142745#(<= main_x 99), 142750#(<= main_x 104), 142751#(<= main_x 105), 142748#(<= main_x 102), 142749#(<= main_x 103), 142754#(<= main_x 108), 142755#(<= main_x 109), 142752#(<= main_x 106), 142753#(<= main_x 107), 142758#(<= main_x 112), 142759#(<= main_x 113), 142756#(<= main_x 110), 142757#(<= main_x 111), 142762#(<= main_x 116), 142763#(<= main_x 117), 142760#(<= main_x 114), 142761#(<= main_x 115), 142766#(<= main_x 120), 142767#(<= main_x 121), 142764#(<= main_x 118), 142765#(<= main_x 119), 142770#(<= main_x 124), 142771#(<= main_x 125), 142768#(<= main_x 122), 142769#(<= main_x 123), 142774#(<= main_x 128), 142775#(<= main_x 129), 142772#(<= main_x 126), 142773#(<= main_x 127), 142778#(<= main_x 132), 142779#(<= main_x 133), 142776#(<= main_x 130), 142777#(<= main_x 131), 142782#(<= main_x 136), 142783#(<= main_x 137), 142780#(<= main_x 134), 142781#(<= main_x 135), 142786#(<= main_x 140), 142787#(<= main_x 141), 142784#(<= main_x 138), 142785#(<= main_x 139), 142790#(<= main_x 144), 142791#(<= main_x 145), 142788#(<= main_x 142), 142789#(<= main_x 143), 142794#(<= main_x 148), 142795#(<= main_x 149), 142792#(<= main_x 146), 142793#(<= main_x 147), 142798#(<= main_x 152), 142799#(<= main_x 153), 142796#(<= main_x 150), 142797#(<= main_x 151), 142802#(<= main_x 156), 142803#(<= main_x 157), 142800#(<= main_x 154), 142801#(<= main_x 155), 142806#(<= main_x 160), 142807#(<= main_x 161), 142804#(<= main_x 158), 142805#(<= main_x 159), 142810#(<= main_x 164), 142811#(<= main_x 165), 142808#(<= main_x 162), 142809#(<= main_x 163), 142814#(<= main_x 168), 142815#(<= main_x 169), 142812#(<= main_x 166), 142813#(<= main_x 167), 142818#(<= main_x 172), 142819#(<= main_x 173), 142816#(<= main_x 170), 142817#(<= main_x 171), 142822#(<= main_x 176), 142823#(<= main_x 177), 142820#(<= main_x 174), 142821#(<= main_x 175), 142826#(<= main_x 180), 142827#(<= main_x 181), 142824#(<= main_x 178), 142825#(<= main_x 179), 142830#(<= main_x 184), 142831#(<= main_x 185), 142828#(<= main_x 182), 142829#(<= main_x 183), 142834#(<= main_x 188), 142835#(<= main_x 189), 142832#(<= main_x 186), 142833#(<= main_x 187), 142838#(<= main_x 192), 142839#(<= main_x 193), 142836#(<= main_x 190), 142837#(<= main_x 191), 142842#(<= main_x 196), 142843#(<= main_x 197), 142840#(<= main_x 194), 142841#(<= main_x 195), 142846#(<= main_x 200), 142847#(<= main_x 201), 142844#(<= main_x 198), 142845#(<= main_x 199)] [2018-07-23 13:58:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 27495 backedges. 0 proven. 27495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:18,045 INFO L450 AbstractCegarLoop]: Interpolant automaton has 237 states [2018-07-23 13:58:18,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 237 interpolants. [2018-07-23 13:58:18,052 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27966, Invalid=27966, Unknown=0, NotChecked=0, Total=55932 [2018-07-23 13:58:18,052 INFO L87 Difference]: Start difference. First operand 238 states and 238 transitions. Second operand 237 states. [2018-07-23 13:58:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:19,519 INFO L93 Difference]: Finished difference Result 241 states and 241 transitions. [2018-07-23 13:58:19,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2018-07-23 13:58:19,520 INFO L78 Accepts]: Start accepts. Automaton has 237 states. Word has length 237 [2018-07-23 13:58:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:19,520 INFO L225 Difference]: With dead ends: 241 [2018-07-23 13:58:19,520 INFO L226 Difference]: Without dead ends: 239 [2018-07-23 13:58:19,523 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27966, Invalid=27966, Unknown=0, NotChecked=0, Total=55932 [2018-07-23 13:58:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-07-23 13:58:19,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2018-07-23 13:58:19,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2018-07-23 13:58:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2018-07-23 13:58:19,526 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 237 [2018-07-23 13:58:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:19,526 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2018-07-23 13:58:19,526 INFO L472 AbstractCegarLoop]: Interpolant automaton has 237 states. [2018-07-23 13:58:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2018-07-23 13:58:19,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-23 13:58:19,527 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:19,527 INFO L357 BasicCegarLoop]: trace histogram [235, 1, 1, 1] [2018-07-23 13:58:19,527 INFO L414 AbstractCegarLoop]: === Iteration 236 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:19,528 INFO L82 PathProgramCache]: Analyzing trace with hash 851350470, now seen corresponding path program 235 times [2018-07-23 13:58:19,528 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 27730 backedges. 0 proven. 27730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:21,247 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:21,247 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [237] total 237 [2018-07-23 13:58:21,247 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:21,248 INFO L185 omatonBuilderFactory]: Interpolants [143874#(<= main_x 31), 143875#(<= main_x 32), 143872#(<= main_x 29), 143873#(<= main_x 30), 143878#(<= main_x 35), 143879#(<= main_x 36), 143876#(<= main_x 33), 143877#(<= main_x 34), 143882#(<= main_x 39), 143883#(<= main_x 40), 143880#(<= main_x 37), 143881#(<= main_x 38), 143886#(<= main_x 43), 143887#(<= main_x 44), 143884#(<= main_x 41), 143885#(<= main_x 42), 143890#(<= main_x 47), 143891#(<= main_x 48), 143888#(<= main_x 45), 143889#(<= main_x 46), 143894#(<= main_x 51), 143895#(<= main_x 52), 143892#(<= main_x 49), 143893#(<= main_x 50), 143898#(<= main_x 55), 143899#(<= main_x 56), 143896#(<= main_x 53), 143897#(<= main_x 54), 143902#(<= main_x 59), 143903#(<= main_x 60), 143900#(<= main_x 57), 143901#(<= main_x 58), 143906#(<= main_x 63), 143907#(<= main_x 64), 143904#(<= main_x 61), 143905#(<= main_x 62), 143910#(<= main_x 67), 143911#(<= main_x 68), 143908#(<= main_x 65), 143909#(<= main_x 66), 143914#(<= main_x 71), 143915#(<= main_x 72), 143912#(<= main_x 69), 143913#(<= main_x 70), 143918#(<= main_x 75), 143919#(<= main_x 76), 143916#(<= main_x 73), 143917#(<= main_x 74), 143922#(<= main_x 79), 143923#(<= main_x 80), 143920#(<= main_x 77), 143921#(<= main_x 78), 143926#(<= main_x 83), 143927#(<= main_x 84), 143924#(<= main_x 81), 143925#(<= main_x 82), 143930#(<= main_x 87), 143931#(<= main_x 88), 143928#(<= main_x 85), 143929#(<= main_x 86), 143934#(<= main_x 91), 143935#(<= main_x 92), 143932#(<= main_x 89), 143933#(<= main_x 90), 143938#(<= main_x 95), 143939#(<= main_x 96), 143936#(<= main_x 93), 143937#(<= main_x 94), 143942#(<= main_x 99), 143943#(<= main_x 100), 143940#(<= main_x 97), 143941#(<= main_x 98), 143946#(<= main_x 103), 143947#(<= main_x 104), 143944#(<= main_x 101), 143945#(<= main_x 102), 143950#(<= main_x 107), 143951#(<= main_x 108), 143948#(<= main_x 105), 143949#(<= main_x 106), 143954#(<= main_x 111), 143955#(<= main_x 112), 143952#(<= main_x 109), 143953#(<= main_x 110), 143958#(<= main_x 115), 143959#(<= main_x 116), 143956#(<= main_x 113), 143957#(<= main_x 114), 143962#(<= main_x 119), 143963#(<= main_x 120), 143960#(<= main_x 117), 143961#(<= main_x 118), 143966#(<= main_x 123), 143967#(<= main_x 124), 143964#(<= main_x 121), 143965#(<= main_x 122), 143970#(<= main_x 127), 143971#(<= main_x 128), 143968#(<= main_x 125), 143969#(<= main_x 126), 143974#(<= main_x 131), 143975#(<= main_x 132), 143972#(<= main_x 129), 143973#(<= main_x 130), 143978#(<= main_x 135), 143979#(<= main_x 136), 143976#(<= main_x 133), 143977#(<= main_x 134), 143982#(<= main_x 139), 143983#(<= main_x 140), 143980#(<= main_x 137), 143981#(<= main_x 138), 143986#(<= main_x 143), 143987#(<= main_x 144), 143984#(<= main_x 141), 143985#(<= main_x 142), 143990#(<= main_x 147), 143991#(<= main_x 148), 143988#(<= main_x 145), 143989#(<= main_x 146), 143994#(<= main_x 151), 143995#(<= main_x 152), 143992#(<= main_x 149), 143993#(<= main_x 150), 143998#(<= main_x 155), 143999#(<= main_x 156), 143996#(<= main_x 153), 143997#(<= main_x 154), 144002#(<= main_x 159), 144003#(<= main_x 160), 144000#(<= main_x 157), 144001#(<= main_x 158), 144006#(<= main_x 163), 144007#(<= main_x 164), 144004#(<= main_x 161), 144005#(<= main_x 162), 144010#(<= main_x 167), 144011#(<= main_x 168), 144008#(<= main_x 165), 144009#(<= main_x 166), 144014#(<= main_x 171), 144015#(<= main_x 172), 144012#(<= main_x 169), 144013#(<= main_x 170), 144018#(<= main_x 175), 144019#(<= main_x 176), 144016#(<= main_x 173), 144017#(<= main_x 174), 144022#(<= main_x 179), 144023#(<= main_x 180), 144020#(<= main_x 177), 144021#(<= main_x 178), 144026#(<= main_x 183), 144027#(<= main_x 184), 144024#(<= main_x 181), 144025#(<= main_x 182), 144030#(<= main_x 187), 144031#(<= main_x 188), 144028#(<= main_x 185), 144029#(<= main_x 186), 144034#(<= main_x 191), 144035#(<= main_x 192), 144032#(<= main_x 189), 144033#(<= main_x 190), 144038#(<= main_x 195), 144039#(<= main_x 196), 144036#(<= main_x 193), 144037#(<= main_x 194), 144042#(<= main_x 199), 144043#(<= main_x 200), 144040#(<= main_x 197), 144041#(<= main_x 198), 144046#(<= main_x 203), 144047#(<= main_x 204), 144044#(<= main_x 201), 144045#(<= main_x 202), 144050#(<= main_x 207), 144051#(<= main_x 208), 144048#(<= main_x 205), 144049#(<= main_x 206), 144054#(<= main_x 211), 144055#(<= main_x 212), 144052#(<= main_x 209), 144053#(<= main_x 210), 144058#(<= main_x 215), 144059#(<= main_x 216), 144056#(<= main_x 213), 144057#(<= main_x 214), 144062#(<= main_x 219), 144063#(<= main_x 220), 144060#(<= main_x 217), 144061#(<= main_x 218), 144066#(<= main_x 223), 144067#(<= main_x 224), 144064#(<= main_x 221), 144065#(<= main_x 222), 144070#(<= main_x 227), 144071#(<= main_x 228), 144068#(<= main_x 225), 144069#(<= main_x 226), 144074#(<= main_x 231), 144075#(<= main_x 232), 144072#(<= main_x 229), 144073#(<= main_x 230), 144078#(<= main_x 235), 144076#(<= main_x 233), 144077#(<= main_x 234), 143842#false, 143843#(<= main_x 0), 143841#true, 143846#(<= main_x 3), 143847#(<= main_x 4), 143844#(<= main_x 1), 143845#(<= main_x 2), 143850#(<= main_x 7), 143851#(<= main_x 8), 143848#(<= main_x 5), 143849#(<= main_x 6), 143854#(<= main_x 11), 143855#(<= main_x 12), 143852#(<= main_x 9), 143853#(<= main_x 10), 143858#(<= main_x 15), 143859#(<= main_x 16), 143856#(<= main_x 13), 143857#(<= main_x 14), 143862#(<= main_x 19), 143863#(<= main_x 20), 143860#(<= main_x 17), 143861#(<= main_x 18), 143866#(<= main_x 23), 143867#(<= main_x 24), 143864#(<= main_x 21), 143865#(<= main_x 22), 143870#(<= main_x 27), 143871#(<= main_x 28), 143868#(<= main_x 25), 143869#(<= main_x 26)] [2018-07-23 13:58:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 27730 backedges. 0 proven. 27730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:21,249 INFO L450 AbstractCegarLoop]: Interpolant automaton has 238 states [2018-07-23 13:58:21,252 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 238 interpolants. [2018-07-23 13:58:21,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28203, Invalid=28203, Unknown=0, NotChecked=0, Total=56406 [2018-07-23 13:58:21,254 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand 238 states. [2018-07-23 13:58:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:23,153 INFO L93 Difference]: Finished difference Result 242 states and 242 transitions. [2018-07-23 13:58:23,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2018-07-23 13:58:23,154 INFO L78 Accepts]: Start accepts. Automaton has 238 states. Word has length 238 [2018-07-23 13:58:23,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:23,154 INFO L225 Difference]: With dead ends: 242 [2018-07-23 13:58:23,154 INFO L226 Difference]: Without dead ends: 240 [2018-07-23 13:58:23,156 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28203, Invalid=28203, Unknown=0, NotChecked=0, Total=56406 [2018-07-23 13:58:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-07-23 13:58:23,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2018-07-23 13:58:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-07-23 13:58:23,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 240 transitions. [2018-07-23 13:58:23,158 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 240 transitions. Word has length 238 [2018-07-23 13:58:23,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:23,158 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 240 transitions. [2018-07-23 13:58:23,158 INFO L472 AbstractCegarLoop]: Interpolant automaton has 238 states. [2018-07-23 13:58:23,158 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 240 transitions. [2018-07-23 13:58:23,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-07-23 13:58:23,159 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:23,159 INFO L357 BasicCegarLoop]: trace histogram [236, 1, 1, 1] [2018-07-23 13:58:23,159 INFO L414 AbstractCegarLoop]: === Iteration 237 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:23,159 INFO L82 PathProgramCache]: Analyzing trace with hash 622056928, now seen corresponding path program 236 times [2018-07-23 13:58:23,159 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:24,796 INFO L134 CoverageAnalysis]: Checked inductivity of 27966 backedges. 0 proven. 27966 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:24,796 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:24,797 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [238] total 238 [2018-07-23 13:58:24,797 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:24,797 INFO L185 omatonBuilderFactory]: Interpolants [145043#true, 145046#(<= main_x 1), 145047#(<= main_x 2), 145044#false, 145045#(<= main_x 0), 145050#(<= main_x 5), 145051#(<= main_x 6), 145048#(<= main_x 3), 145049#(<= main_x 4), 145054#(<= main_x 9), 145055#(<= main_x 10), 145052#(<= main_x 7), 145053#(<= main_x 8), 145058#(<= main_x 13), 145059#(<= main_x 14), 145056#(<= main_x 11), 145057#(<= main_x 12), 145062#(<= main_x 17), 145063#(<= main_x 18), 145060#(<= main_x 15), 145061#(<= main_x 16), 145066#(<= main_x 21), 145067#(<= main_x 22), 145064#(<= main_x 19), 145065#(<= main_x 20), 145070#(<= main_x 25), 145071#(<= main_x 26), 145068#(<= main_x 23), 145069#(<= main_x 24), 145074#(<= main_x 29), 145075#(<= main_x 30), 145072#(<= main_x 27), 145073#(<= main_x 28), 145078#(<= main_x 33), 145079#(<= main_x 34), 145076#(<= main_x 31), 145077#(<= main_x 32), 145082#(<= main_x 37), 145083#(<= main_x 38), 145080#(<= main_x 35), 145081#(<= main_x 36), 145086#(<= main_x 41), 145087#(<= main_x 42), 145084#(<= main_x 39), 145085#(<= main_x 40), 145090#(<= main_x 45), 145091#(<= main_x 46), 145088#(<= main_x 43), 145089#(<= main_x 44), 145094#(<= main_x 49), 145095#(<= main_x 50), 145092#(<= main_x 47), 145093#(<= main_x 48), 145098#(<= main_x 53), 145099#(<= main_x 54), 145096#(<= main_x 51), 145097#(<= main_x 52), 145102#(<= main_x 57), 145103#(<= main_x 58), 145100#(<= main_x 55), 145101#(<= main_x 56), 145106#(<= main_x 61), 145107#(<= main_x 62), 145104#(<= main_x 59), 145105#(<= main_x 60), 145110#(<= main_x 65), 145111#(<= main_x 66), 145108#(<= main_x 63), 145109#(<= main_x 64), 145114#(<= main_x 69), 145115#(<= main_x 70), 145112#(<= main_x 67), 145113#(<= main_x 68), 145118#(<= main_x 73), 145119#(<= main_x 74), 145116#(<= main_x 71), 145117#(<= main_x 72), 145122#(<= main_x 77), 145123#(<= main_x 78), 145120#(<= main_x 75), 145121#(<= main_x 76), 145126#(<= main_x 81), 145127#(<= main_x 82), 145124#(<= main_x 79), 145125#(<= main_x 80), 145130#(<= main_x 85), 145131#(<= main_x 86), 145128#(<= main_x 83), 145129#(<= main_x 84), 145134#(<= main_x 89), 145135#(<= main_x 90), 145132#(<= main_x 87), 145133#(<= main_x 88), 145138#(<= main_x 93), 145139#(<= main_x 94), 145136#(<= main_x 91), 145137#(<= main_x 92), 145142#(<= main_x 97), 145143#(<= main_x 98), 145140#(<= main_x 95), 145141#(<= main_x 96), 145146#(<= main_x 101), 145147#(<= main_x 102), 145144#(<= main_x 99), 145145#(<= main_x 100), 145150#(<= main_x 105), 145151#(<= main_x 106), 145148#(<= main_x 103), 145149#(<= main_x 104), 145154#(<= main_x 109), 145155#(<= main_x 110), 145152#(<= main_x 107), 145153#(<= main_x 108), 145158#(<= main_x 113), 145159#(<= main_x 114), 145156#(<= main_x 111), 145157#(<= main_x 112), 145162#(<= main_x 117), 145163#(<= main_x 118), 145160#(<= main_x 115), 145161#(<= main_x 116), 145166#(<= main_x 121), 145167#(<= main_x 122), 145164#(<= main_x 119), 145165#(<= main_x 120), 145170#(<= main_x 125), 145171#(<= main_x 126), 145168#(<= main_x 123), 145169#(<= main_x 124), 145174#(<= main_x 129), 145175#(<= main_x 130), 145172#(<= main_x 127), 145173#(<= main_x 128), 145178#(<= main_x 133), 145179#(<= main_x 134), 145176#(<= main_x 131), 145177#(<= main_x 132), 145182#(<= main_x 137), 145183#(<= main_x 138), 145180#(<= main_x 135), 145181#(<= main_x 136), 145186#(<= main_x 141), 145187#(<= main_x 142), 145184#(<= main_x 139), 145185#(<= main_x 140), 145190#(<= main_x 145), 145191#(<= main_x 146), 145188#(<= main_x 143), 145189#(<= main_x 144), 145194#(<= main_x 149), 145195#(<= main_x 150), 145192#(<= main_x 147), 145193#(<= main_x 148), 145198#(<= main_x 153), 145199#(<= main_x 154), 145196#(<= main_x 151), 145197#(<= main_x 152), 145202#(<= main_x 157), 145203#(<= main_x 158), 145200#(<= main_x 155), 145201#(<= main_x 156), 145206#(<= main_x 161), 145207#(<= main_x 162), 145204#(<= main_x 159), 145205#(<= main_x 160), 145210#(<= main_x 165), 145211#(<= main_x 166), 145208#(<= main_x 163), 145209#(<= main_x 164), 145214#(<= main_x 169), 145215#(<= main_x 170), 145212#(<= main_x 167), 145213#(<= main_x 168), 145218#(<= main_x 173), 145219#(<= main_x 174), 145216#(<= main_x 171), 145217#(<= main_x 172), 145222#(<= main_x 177), 145223#(<= main_x 178), 145220#(<= main_x 175), 145221#(<= main_x 176), 145226#(<= main_x 181), 145227#(<= main_x 182), 145224#(<= main_x 179), 145225#(<= main_x 180), 145230#(<= main_x 185), 145231#(<= main_x 186), 145228#(<= main_x 183), 145229#(<= main_x 184), 145234#(<= main_x 189), 145235#(<= main_x 190), 145232#(<= main_x 187), 145233#(<= main_x 188), 145238#(<= main_x 193), 145239#(<= main_x 194), 145236#(<= main_x 191), 145237#(<= main_x 192), 145242#(<= main_x 197), 145243#(<= main_x 198), 145240#(<= main_x 195), 145241#(<= main_x 196), 145246#(<= main_x 201), 145247#(<= main_x 202), 145244#(<= main_x 199), 145245#(<= main_x 200), 145250#(<= main_x 205), 145251#(<= main_x 206), 145248#(<= main_x 203), 145249#(<= main_x 204), 145254#(<= main_x 209), 145255#(<= main_x 210), 145252#(<= main_x 207), 145253#(<= main_x 208), 145258#(<= main_x 213), 145259#(<= main_x 214), 145256#(<= main_x 211), 145257#(<= main_x 212), 145262#(<= main_x 217), 145263#(<= main_x 218), 145260#(<= main_x 215), 145261#(<= main_x 216), 145266#(<= main_x 221), 145267#(<= main_x 222), 145264#(<= main_x 219), 145265#(<= main_x 220), 145270#(<= main_x 225), 145271#(<= main_x 226), 145268#(<= main_x 223), 145269#(<= main_x 224), 145274#(<= main_x 229), 145275#(<= main_x 230), 145272#(<= main_x 227), 145273#(<= main_x 228), 145278#(<= main_x 233), 145279#(<= main_x 234), 145276#(<= main_x 231), 145277#(<= main_x 232), 145280#(<= main_x 235), 145281#(<= main_x 236)] [2018-07-23 13:58:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 27966 backedges. 0 proven. 27966 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:24,799 INFO L450 AbstractCegarLoop]: Interpolant automaton has 239 states [2018-07-23 13:58:24,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 239 interpolants. [2018-07-23 13:58:24,806 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28441, Invalid=28441, Unknown=0, NotChecked=0, Total=56882 [2018-07-23 13:58:24,806 INFO L87 Difference]: Start difference. First operand 240 states and 240 transitions. Second operand 239 states. [2018-07-23 13:58:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:26,026 INFO L93 Difference]: Finished difference Result 243 states and 243 transitions. [2018-07-23 13:58:26,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 239 states. [2018-07-23 13:58:26,026 INFO L78 Accepts]: Start accepts. Automaton has 239 states. Word has length 239 [2018-07-23 13:58:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:26,027 INFO L225 Difference]: With dead ends: 243 [2018-07-23 13:58:26,027 INFO L226 Difference]: Without dead ends: 241 [2018-07-23 13:58:26,029 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28441, Invalid=28441, Unknown=0, NotChecked=0, Total=56882 [2018-07-23 13:58:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2018-07-23 13:58:26,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2018-07-23 13:58:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-07-23 13:58:26,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 241 transitions. [2018-07-23 13:58:26,064 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 241 transitions. Word has length 239 [2018-07-23 13:58:26,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:26,064 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 241 transitions. [2018-07-23 13:58:26,064 INFO L472 AbstractCegarLoop]: Interpolant automaton has 239 states. [2018-07-23 13:58:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 241 transitions. [2018-07-23 13:58:26,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-07-23 13:58:26,065 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:26,065 INFO L357 BasicCegarLoop]: trace histogram [237, 1, 1, 1] [2018-07-23 13:58:26,065 INFO L414 AbstractCegarLoop]: === Iteration 238 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:26,065 INFO L82 PathProgramCache]: Analyzing trace with hash 2103891718, now seen corresponding path program 237 times [2018-07-23 13:58:26,065 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 28203 backedges. 0 proven. 28203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:27,697 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:27,697 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [239] total 239 [2018-07-23 13:58:27,697 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:27,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:27,698 INFO L185 omatonBuilderFactory]: Interpolants [146434#(<= main_x 182), 146435#(<= main_x 183), 146432#(<= main_x 180), 146433#(<= main_x 181), 146438#(<= main_x 186), 146439#(<= main_x 187), 146436#(<= main_x 184), 146437#(<= main_x 185), 146442#(<= main_x 190), 146443#(<= main_x 191), 146440#(<= main_x 188), 146441#(<= main_x 189), 146446#(<= main_x 194), 146447#(<= main_x 195), 146444#(<= main_x 192), 146445#(<= main_x 193), 146450#(<= main_x 198), 146451#(<= main_x 199), 146448#(<= main_x 196), 146449#(<= main_x 197), 146454#(<= main_x 202), 146455#(<= main_x 203), 146452#(<= main_x 200), 146453#(<= main_x 201), 146458#(<= main_x 206), 146459#(<= main_x 207), 146456#(<= main_x 204), 146457#(<= main_x 205), 146462#(<= main_x 210), 146463#(<= main_x 211), 146460#(<= main_x 208), 146461#(<= main_x 209), 146466#(<= main_x 214), 146467#(<= main_x 215), 146464#(<= main_x 212), 146465#(<= main_x 213), 146470#(<= main_x 218), 146471#(<= main_x 219), 146468#(<= main_x 216), 146469#(<= main_x 217), 146474#(<= main_x 222), 146475#(<= main_x 223), 146472#(<= main_x 220), 146473#(<= main_x 221), 146478#(<= main_x 226), 146479#(<= main_x 227), 146476#(<= main_x 224), 146477#(<= main_x 225), 146482#(<= main_x 230), 146483#(<= main_x 231), 146480#(<= main_x 228), 146481#(<= main_x 229), 146486#(<= main_x 234), 146487#(<= main_x 235), 146484#(<= main_x 232), 146485#(<= main_x 233), 146488#(<= main_x 236), 146489#(<= main_x 237), 146250#true, 146251#false, 146254#(<= main_x 2), 146255#(<= main_x 3), 146252#(<= main_x 0), 146253#(<= main_x 1), 146258#(<= main_x 6), 146259#(<= main_x 7), 146256#(<= main_x 4), 146257#(<= main_x 5), 146262#(<= main_x 10), 146263#(<= main_x 11), 146260#(<= main_x 8), 146261#(<= main_x 9), 146266#(<= main_x 14), 146267#(<= main_x 15), 146264#(<= main_x 12), 146265#(<= main_x 13), 146270#(<= main_x 18), 146271#(<= main_x 19), 146268#(<= main_x 16), 146269#(<= main_x 17), 146274#(<= main_x 22), 146275#(<= main_x 23), 146272#(<= main_x 20), 146273#(<= main_x 21), 146278#(<= main_x 26), 146279#(<= main_x 27), 146276#(<= main_x 24), 146277#(<= main_x 25), 146282#(<= main_x 30), 146283#(<= main_x 31), 146280#(<= main_x 28), 146281#(<= main_x 29), 146286#(<= main_x 34), 146287#(<= main_x 35), 146284#(<= main_x 32), 146285#(<= main_x 33), 146290#(<= main_x 38), 146291#(<= main_x 39), 146288#(<= main_x 36), 146289#(<= main_x 37), 146294#(<= main_x 42), 146295#(<= main_x 43), 146292#(<= main_x 40), 146293#(<= main_x 41), 146298#(<= main_x 46), 146299#(<= main_x 47), 146296#(<= main_x 44), 146297#(<= main_x 45), 146302#(<= main_x 50), 146303#(<= main_x 51), 146300#(<= main_x 48), 146301#(<= main_x 49), 146306#(<= main_x 54), 146307#(<= main_x 55), 146304#(<= main_x 52), 146305#(<= main_x 53), 146310#(<= main_x 58), 146311#(<= main_x 59), 146308#(<= main_x 56), 146309#(<= main_x 57), 146314#(<= main_x 62), 146315#(<= main_x 63), 146312#(<= main_x 60), 146313#(<= main_x 61), 146318#(<= main_x 66), 146319#(<= main_x 67), 146316#(<= main_x 64), 146317#(<= main_x 65), 146322#(<= main_x 70), 146323#(<= main_x 71), 146320#(<= main_x 68), 146321#(<= main_x 69), 146326#(<= main_x 74), 146327#(<= main_x 75), 146324#(<= main_x 72), 146325#(<= main_x 73), 146330#(<= main_x 78), 146331#(<= main_x 79), 146328#(<= main_x 76), 146329#(<= main_x 77), 146334#(<= main_x 82), 146335#(<= main_x 83), 146332#(<= main_x 80), 146333#(<= main_x 81), 146338#(<= main_x 86), 146339#(<= main_x 87), 146336#(<= main_x 84), 146337#(<= main_x 85), 146342#(<= main_x 90), 146343#(<= main_x 91), 146340#(<= main_x 88), 146341#(<= main_x 89), 146346#(<= main_x 94), 146347#(<= main_x 95), 146344#(<= main_x 92), 146345#(<= main_x 93), 146350#(<= main_x 98), 146351#(<= main_x 99), 146348#(<= main_x 96), 146349#(<= main_x 97), 146354#(<= main_x 102), 146355#(<= main_x 103), 146352#(<= main_x 100), 146353#(<= main_x 101), 146358#(<= main_x 106), 146359#(<= main_x 107), 146356#(<= main_x 104), 146357#(<= main_x 105), 146362#(<= main_x 110), 146363#(<= main_x 111), 146360#(<= main_x 108), 146361#(<= main_x 109), 146366#(<= main_x 114), 146367#(<= main_x 115), 146364#(<= main_x 112), 146365#(<= main_x 113), 146370#(<= main_x 118), 146371#(<= main_x 119), 146368#(<= main_x 116), 146369#(<= main_x 117), 146374#(<= main_x 122), 146375#(<= main_x 123), 146372#(<= main_x 120), 146373#(<= main_x 121), 146378#(<= main_x 126), 146379#(<= main_x 127), 146376#(<= main_x 124), 146377#(<= main_x 125), 146382#(<= main_x 130), 146383#(<= main_x 131), 146380#(<= main_x 128), 146381#(<= main_x 129), 146386#(<= main_x 134), 146387#(<= main_x 135), 146384#(<= main_x 132), 146385#(<= main_x 133), 146390#(<= main_x 138), 146391#(<= main_x 139), 146388#(<= main_x 136), 146389#(<= main_x 137), 146394#(<= main_x 142), 146395#(<= main_x 143), 146392#(<= main_x 140), 146393#(<= main_x 141), 146398#(<= main_x 146), 146399#(<= main_x 147), 146396#(<= main_x 144), 146397#(<= main_x 145), 146402#(<= main_x 150), 146403#(<= main_x 151), 146400#(<= main_x 148), 146401#(<= main_x 149), 146406#(<= main_x 154), 146407#(<= main_x 155), 146404#(<= main_x 152), 146405#(<= main_x 153), 146410#(<= main_x 158), 146411#(<= main_x 159), 146408#(<= main_x 156), 146409#(<= main_x 157), 146414#(<= main_x 162), 146415#(<= main_x 163), 146412#(<= main_x 160), 146413#(<= main_x 161), 146418#(<= main_x 166), 146419#(<= main_x 167), 146416#(<= main_x 164), 146417#(<= main_x 165), 146422#(<= main_x 170), 146423#(<= main_x 171), 146420#(<= main_x 168), 146421#(<= main_x 169), 146426#(<= main_x 174), 146427#(<= main_x 175), 146424#(<= main_x 172), 146425#(<= main_x 173), 146430#(<= main_x 178), 146431#(<= main_x 179), 146428#(<= main_x 176), 146429#(<= main_x 177)] [2018-07-23 13:58:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 28203 backedges. 0 proven. 28203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:27,699 INFO L450 AbstractCegarLoop]: Interpolant automaton has 240 states [2018-07-23 13:58:27,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 240 interpolants. [2018-07-23 13:58:27,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28680, Invalid=28680, Unknown=0, NotChecked=0, Total=57360 [2018-07-23 13:58:27,705 INFO L87 Difference]: Start difference. First operand 241 states and 241 transitions. Second operand 240 states. [2018-07-23 13:58:28,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:28,441 INFO L93 Difference]: Finished difference Result 244 states and 244 transitions. [2018-07-23 13:58:28,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 240 states. [2018-07-23 13:58:28,441 INFO L78 Accepts]: Start accepts. Automaton has 240 states. Word has length 240 [2018-07-23 13:58:28,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:28,442 INFO L225 Difference]: With dead ends: 244 [2018-07-23 13:58:28,442 INFO L226 Difference]: Without dead ends: 242 [2018-07-23 13:58:28,444 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28680, Invalid=28680, Unknown=0, NotChecked=0, Total=57360 [2018-07-23 13:58:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-07-23 13:58:28,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2018-07-23 13:58:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-07-23 13:58:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 242 transitions. [2018-07-23 13:58:28,447 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 242 transitions. Word has length 240 [2018-07-23 13:58:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:28,447 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 242 transitions. [2018-07-23 13:58:28,447 INFO L472 AbstractCegarLoop]: Interpolant automaton has 240 states. [2018-07-23 13:58:28,447 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 242 transitions. [2018-07-23 13:58:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-07-23 13:58:28,447 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:28,448 INFO L357 BasicCegarLoop]: trace histogram [238, 1, 1, 1] [2018-07-23 13:58:28,448 INFO L414 AbstractCegarLoop]: === Iteration 239 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:28,448 INFO L82 PathProgramCache]: Analyzing trace with hash 796129952, now seen corresponding path program 238 times [2018-07-23 13:58:28,448 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 28441 backedges. 0 proven. 28441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:30,115 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:30,115 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [240] total 240 [2018-07-23 13:58:30,115 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:30,116 INFO L185 omatonBuilderFactory]: Interpolants [147462#true, 147463#false, 147466#(<= main_x 2), 147467#(<= main_x 3), 147464#(<= main_x 0), 147465#(<= main_x 1), 147470#(<= main_x 6), 147471#(<= main_x 7), 147468#(<= main_x 4), 147469#(<= main_x 5), 147474#(<= main_x 10), 147475#(<= main_x 11), 147472#(<= main_x 8), 147473#(<= main_x 9), 147478#(<= main_x 14), 147479#(<= main_x 15), 147476#(<= main_x 12), 147477#(<= main_x 13), 147482#(<= main_x 18), 147483#(<= main_x 19), 147480#(<= main_x 16), 147481#(<= main_x 17), 147486#(<= main_x 22), 147487#(<= main_x 23), 147484#(<= main_x 20), 147485#(<= main_x 21), 147490#(<= main_x 26), 147491#(<= main_x 27), 147488#(<= main_x 24), 147489#(<= main_x 25), 147494#(<= main_x 30), 147495#(<= main_x 31), 147492#(<= main_x 28), 147493#(<= main_x 29), 147498#(<= main_x 34), 147499#(<= main_x 35), 147496#(<= main_x 32), 147497#(<= main_x 33), 147502#(<= main_x 38), 147503#(<= main_x 39), 147500#(<= main_x 36), 147501#(<= main_x 37), 147506#(<= main_x 42), 147507#(<= main_x 43), 147504#(<= main_x 40), 147505#(<= main_x 41), 147510#(<= main_x 46), 147511#(<= main_x 47), 147508#(<= main_x 44), 147509#(<= main_x 45), 147514#(<= main_x 50), 147515#(<= main_x 51), 147512#(<= main_x 48), 147513#(<= main_x 49), 147518#(<= main_x 54), 147519#(<= main_x 55), 147516#(<= main_x 52), 147517#(<= main_x 53), 147522#(<= main_x 58), 147523#(<= main_x 59), 147520#(<= main_x 56), 147521#(<= main_x 57), 147526#(<= main_x 62), 147527#(<= main_x 63), 147524#(<= main_x 60), 147525#(<= main_x 61), 147530#(<= main_x 66), 147531#(<= main_x 67), 147528#(<= main_x 64), 147529#(<= main_x 65), 147534#(<= main_x 70), 147535#(<= main_x 71), 147532#(<= main_x 68), 147533#(<= main_x 69), 147538#(<= main_x 74), 147539#(<= main_x 75), 147536#(<= main_x 72), 147537#(<= main_x 73), 147542#(<= main_x 78), 147543#(<= main_x 79), 147540#(<= main_x 76), 147541#(<= main_x 77), 147546#(<= main_x 82), 147547#(<= main_x 83), 147544#(<= main_x 80), 147545#(<= main_x 81), 147550#(<= main_x 86), 147551#(<= main_x 87), 147548#(<= main_x 84), 147549#(<= main_x 85), 147554#(<= main_x 90), 147555#(<= main_x 91), 147552#(<= main_x 88), 147553#(<= main_x 89), 147558#(<= main_x 94), 147559#(<= main_x 95), 147556#(<= main_x 92), 147557#(<= main_x 93), 147562#(<= main_x 98), 147563#(<= main_x 99), 147560#(<= main_x 96), 147561#(<= main_x 97), 147566#(<= main_x 102), 147567#(<= main_x 103), 147564#(<= main_x 100), 147565#(<= main_x 101), 147570#(<= main_x 106), 147571#(<= main_x 107), 147568#(<= main_x 104), 147569#(<= main_x 105), 147574#(<= main_x 110), 147575#(<= main_x 111), 147572#(<= main_x 108), 147573#(<= main_x 109), 147578#(<= main_x 114), 147579#(<= main_x 115), 147576#(<= main_x 112), 147577#(<= main_x 113), 147582#(<= main_x 118), 147583#(<= main_x 119), 147580#(<= main_x 116), 147581#(<= main_x 117), 147586#(<= main_x 122), 147587#(<= main_x 123), 147584#(<= main_x 120), 147585#(<= main_x 121), 147590#(<= main_x 126), 147591#(<= main_x 127), 147588#(<= main_x 124), 147589#(<= main_x 125), 147594#(<= main_x 130), 147595#(<= main_x 131), 147592#(<= main_x 128), 147593#(<= main_x 129), 147598#(<= main_x 134), 147599#(<= main_x 135), 147596#(<= main_x 132), 147597#(<= main_x 133), 147602#(<= main_x 138), 147603#(<= main_x 139), 147600#(<= main_x 136), 147601#(<= main_x 137), 147606#(<= main_x 142), 147607#(<= main_x 143), 147604#(<= main_x 140), 147605#(<= main_x 141), 147610#(<= main_x 146), 147611#(<= main_x 147), 147608#(<= main_x 144), 147609#(<= main_x 145), 147614#(<= main_x 150), 147615#(<= main_x 151), 147612#(<= main_x 148), 147613#(<= main_x 149), 147618#(<= main_x 154), 147619#(<= main_x 155), 147616#(<= main_x 152), 147617#(<= main_x 153), 147622#(<= main_x 158), 147623#(<= main_x 159), 147620#(<= main_x 156), 147621#(<= main_x 157), 147626#(<= main_x 162), 147627#(<= main_x 163), 147624#(<= main_x 160), 147625#(<= main_x 161), 147630#(<= main_x 166), 147631#(<= main_x 167), 147628#(<= main_x 164), 147629#(<= main_x 165), 147634#(<= main_x 170), 147635#(<= main_x 171), 147632#(<= main_x 168), 147633#(<= main_x 169), 147638#(<= main_x 174), 147639#(<= main_x 175), 147636#(<= main_x 172), 147637#(<= main_x 173), 147642#(<= main_x 178), 147643#(<= main_x 179), 147640#(<= main_x 176), 147641#(<= main_x 177), 147646#(<= main_x 182), 147647#(<= main_x 183), 147644#(<= main_x 180), 147645#(<= main_x 181), 147650#(<= main_x 186), 147651#(<= main_x 187), 147648#(<= main_x 184), 147649#(<= main_x 185), 147654#(<= main_x 190), 147655#(<= main_x 191), 147652#(<= main_x 188), 147653#(<= main_x 189), 147658#(<= main_x 194), 147659#(<= main_x 195), 147656#(<= main_x 192), 147657#(<= main_x 193), 147662#(<= main_x 198), 147663#(<= main_x 199), 147660#(<= main_x 196), 147661#(<= main_x 197), 147666#(<= main_x 202), 147667#(<= main_x 203), 147664#(<= main_x 200), 147665#(<= main_x 201), 147670#(<= main_x 206), 147671#(<= main_x 207), 147668#(<= main_x 204), 147669#(<= main_x 205), 147674#(<= main_x 210), 147675#(<= main_x 211), 147672#(<= main_x 208), 147673#(<= main_x 209), 147678#(<= main_x 214), 147679#(<= main_x 215), 147676#(<= main_x 212), 147677#(<= main_x 213), 147682#(<= main_x 218), 147683#(<= main_x 219), 147680#(<= main_x 216), 147681#(<= main_x 217), 147686#(<= main_x 222), 147687#(<= main_x 223), 147684#(<= main_x 220), 147685#(<= main_x 221), 147690#(<= main_x 226), 147691#(<= main_x 227), 147688#(<= main_x 224), 147689#(<= main_x 225), 147694#(<= main_x 230), 147695#(<= main_x 231), 147692#(<= main_x 228), 147693#(<= main_x 229), 147698#(<= main_x 234), 147699#(<= main_x 235), 147696#(<= main_x 232), 147697#(<= main_x 233), 147702#(<= main_x 238), 147700#(<= main_x 236), 147701#(<= main_x 237)] [2018-07-23 13:58:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28441 backedges. 0 proven. 28441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:30,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 241 states [2018-07-23 13:58:30,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 241 interpolants. [2018-07-23 13:58:30,122 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28920, Invalid=28920, Unknown=0, NotChecked=0, Total=57840 [2018-07-23 13:58:30,122 INFO L87 Difference]: Start difference. First operand 242 states and 242 transitions. Second operand 241 states. [2018-07-23 13:58:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:32,009 INFO L93 Difference]: Finished difference Result 245 states and 245 transitions. [2018-07-23 13:58:32,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2018-07-23 13:58:32,009 INFO L78 Accepts]: Start accepts. Automaton has 241 states. Word has length 241 [2018-07-23 13:58:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:32,010 INFO L225 Difference]: With dead ends: 245 [2018-07-23 13:58:32,010 INFO L226 Difference]: Without dead ends: 243 [2018-07-23 13:58:32,011 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28920, Invalid=28920, Unknown=0, NotChecked=0, Total=57840 [2018-07-23 13:58:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-07-23 13:58:32,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2018-07-23 13:58:32,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-07-23 13:58:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 243 transitions. [2018-07-23 13:58:32,014 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 243 transitions. Word has length 241 [2018-07-23 13:58:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:32,014 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 243 transitions. [2018-07-23 13:58:32,014 INFO L472 AbstractCegarLoop]: Interpolant automaton has 241 states. [2018-07-23 13:58:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 243 transitions. [2018-07-23 13:58:32,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-07-23 13:58:32,015 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:32,015 INFO L357 BasicCegarLoop]: trace histogram [239, 1, 1, 1] [2018-07-23 13:58:32,015 INFO L414 AbstractCegarLoop]: === Iteration 240 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:32,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1089779130, now seen corresponding path program 239 times [2018-07-23 13:58:32,015 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 28680 backedges. 0 proven. 28680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:33,706 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:33,707 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [241] total 241 [2018-07-23 13:58:33,707 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:33,707 INFO L185 omatonBuilderFactory]: Interpolants [148679#true, 148682#(<= main_x 1), 148683#(<= main_x 2), 148680#false, 148681#(<= main_x 0), 148686#(<= main_x 5), 148687#(<= main_x 6), 148684#(<= main_x 3), 148685#(<= main_x 4), 148690#(<= main_x 9), 148691#(<= main_x 10), 148688#(<= main_x 7), 148689#(<= main_x 8), 148694#(<= main_x 13), 148695#(<= main_x 14), 148692#(<= main_x 11), 148693#(<= main_x 12), 148698#(<= main_x 17), 148699#(<= main_x 18), 148696#(<= main_x 15), 148697#(<= main_x 16), 148702#(<= main_x 21), 148703#(<= main_x 22), 148700#(<= main_x 19), 148701#(<= main_x 20), 148706#(<= main_x 25), 148707#(<= main_x 26), 148704#(<= main_x 23), 148705#(<= main_x 24), 148710#(<= main_x 29), 148711#(<= main_x 30), 148708#(<= main_x 27), 148709#(<= main_x 28), 148714#(<= main_x 33), 148715#(<= main_x 34), 148712#(<= main_x 31), 148713#(<= main_x 32), 148718#(<= main_x 37), 148719#(<= main_x 38), 148716#(<= main_x 35), 148717#(<= main_x 36), 148722#(<= main_x 41), 148723#(<= main_x 42), 148720#(<= main_x 39), 148721#(<= main_x 40), 148726#(<= main_x 45), 148727#(<= main_x 46), 148724#(<= main_x 43), 148725#(<= main_x 44), 148730#(<= main_x 49), 148731#(<= main_x 50), 148728#(<= main_x 47), 148729#(<= main_x 48), 148734#(<= main_x 53), 148735#(<= main_x 54), 148732#(<= main_x 51), 148733#(<= main_x 52), 148738#(<= main_x 57), 148739#(<= main_x 58), 148736#(<= main_x 55), 148737#(<= main_x 56), 148742#(<= main_x 61), 148743#(<= main_x 62), 148740#(<= main_x 59), 148741#(<= main_x 60), 148746#(<= main_x 65), 148747#(<= main_x 66), 148744#(<= main_x 63), 148745#(<= main_x 64), 148750#(<= main_x 69), 148751#(<= main_x 70), 148748#(<= main_x 67), 148749#(<= main_x 68), 148754#(<= main_x 73), 148755#(<= main_x 74), 148752#(<= main_x 71), 148753#(<= main_x 72), 148758#(<= main_x 77), 148759#(<= main_x 78), 148756#(<= main_x 75), 148757#(<= main_x 76), 148762#(<= main_x 81), 148763#(<= main_x 82), 148760#(<= main_x 79), 148761#(<= main_x 80), 148766#(<= main_x 85), 148767#(<= main_x 86), 148764#(<= main_x 83), 148765#(<= main_x 84), 148770#(<= main_x 89), 148771#(<= main_x 90), 148768#(<= main_x 87), 148769#(<= main_x 88), 148774#(<= main_x 93), 148775#(<= main_x 94), 148772#(<= main_x 91), 148773#(<= main_x 92), 148778#(<= main_x 97), 148779#(<= main_x 98), 148776#(<= main_x 95), 148777#(<= main_x 96), 148782#(<= main_x 101), 148783#(<= main_x 102), 148780#(<= main_x 99), 148781#(<= main_x 100), 148786#(<= main_x 105), 148787#(<= main_x 106), 148784#(<= main_x 103), 148785#(<= main_x 104), 148790#(<= main_x 109), 148791#(<= main_x 110), 148788#(<= main_x 107), 148789#(<= main_x 108), 148794#(<= main_x 113), 148795#(<= main_x 114), 148792#(<= main_x 111), 148793#(<= main_x 112), 148798#(<= main_x 117), 148799#(<= main_x 118), 148796#(<= main_x 115), 148797#(<= main_x 116), 148802#(<= main_x 121), 148803#(<= main_x 122), 148800#(<= main_x 119), 148801#(<= main_x 120), 148806#(<= main_x 125), 148807#(<= main_x 126), 148804#(<= main_x 123), 148805#(<= main_x 124), 148810#(<= main_x 129), 148811#(<= main_x 130), 148808#(<= main_x 127), 148809#(<= main_x 128), 148814#(<= main_x 133), 148815#(<= main_x 134), 148812#(<= main_x 131), 148813#(<= main_x 132), 148818#(<= main_x 137), 148819#(<= main_x 138), 148816#(<= main_x 135), 148817#(<= main_x 136), 148822#(<= main_x 141), 148823#(<= main_x 142), 148820#(<= main_x 139), 148821#(<= main_x 140), 148826#(<= main_x 145), 148827#(<= main_x 146), 148824#(<= main_x 143), 148825#(<= main_x 144), 148830#(<= main_x 149), 148831#(<= main_x 150), 148828#(<= main_x 147), 148829#(<= main_x 148), 148834#(<= main_x 153), 148835#(<= main_x 154), 148832#(<= main_x 151), 148833#(<= main_x 152), 148838#(<= main_x 157), 148839#(<= main_x 158), 148836#(<= main_x 155), 148837#(<= main_x 156), 148842#(<= main_x 161), 148843#(<= main_x 162), 148840#(<= main_x 159), 148841#(<= main_x 160), 148846#(<= main_x 165), 148847#(<= main_x 166), 148844#(<= main_x 163), 148845#(<= main_x 164), 148850#(<= main_x 169), 148851#(<= main_x 170), 148848#(<= main_x 167), 148849#(<= main_x 168), 148854#(<= main_x 173), 148855#(<= main_x 174), 148852#(<= main_x 171), 148853#(<= main_x 172), 148858#(<= main_x 177), 148859#(<= main_x 178), 148856#(<= main_x 175), 148857#(<= main_x 176), 148862#(<= main_x 181), 148863#(<= main_x 182), 148860#(<= main_x 179), 148861#(<= main_x 180), 148866#(<= main_x 185), 148867#(<= main_x 186), 148864#(<= main_x 183), 148865#(<= main_x 184), 148870#(<= main_x 189), 148871#(<= main_x 190), 148868#(<= main_x 187), 148869#(<= main_x 188), 148874#(<= main_x 193), 148875#(<= main_x 194), 148872#(<= main_x 191), 148873#(<= main_x 192), 148878#(<= main_x 197), 148879#(<= main_x 198), 148876#(<= main_x 195), 148877#(<= main_x 196), 148882#(<= main_x 201), 148883#(<= main_x 202), 148880#(<= main_x 199), 148881#(<= main_x 200), 148886#(<= main_x 205), 148887#(<= main_x 206), 148884#(<= main_x 203), 148885#(<= main_x 204), 148890#(<= main_x 209), 148891#(<= main_x 210), 148888#(<= main_x 207), 148889#(<= main_x 208), 148894#(<= main_x 213), 148895#(<= main_x 214), 148892#(<= main_x 211), 148893#(<= main_x 212), 148898#(<= main_x 217), 148899#(<= main_x 218), 148896#(<= main_x 215), 148897#(<= main_x 216), 148902#(<= main_x 221), 148903#(<= main_x 222), 148900#(<= main_x 219), 148901#(<= main_x 220), 148906#(<= main_x 225), 148907#(<= main_x 226), 148904#(<= main_x 223), 148905#(<= main_x 224), 148910#(<= main_x 229), 148911#(<= main_x 230), 148908#(<= main_x 227), 148909#(<= main_x 228), 148914#(<= main_x 233), 148915#(<= main_x 234), 148912#(<= main_x 231), 148913#(<= main_x 232), 148918#(<= main_x 237), 148919#(<= main_x 238), 148916#(<= main_x 235), 148917#(<= main_x 236), 148920#(<= main_x 239)] [2018-07-23 13:58:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 28680 backedges. 0 proven. 28680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:33,708 INFO L450 AbstractCegarLoop]: Interpolant automaton has 242 states [2018-07-23 13:58:33,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 242 interpolants. [2018-07-23 13:58:33,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29161, Invalid=29161, Unknown=0, NotChecked=0, Total=58322 [2018-07-23 13:58:33,712 INFO L87 Difference]: Start difference. First operand 243 states and 243 transitions. Second operand 242 states. [2018-07-23 13:58:35,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:35,150 INFO L93 Difference]: Finished difference Result 246 states and 246 transitions. [2018-07-23 13:58:35,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2018-07-23 13:58:35,150 INFO L78 Accepts]: Start accepts. Automaton has 242 states. Word has length 242 [2018-07-23 13:58:35,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:35,151 INFO L225 Difference]: With dead ends: 246 [2018-07-23 13:58:35,151 INFO L226 Difference]: Without dead ends: 244 [2018-07-23 13:58:35,152 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=29161, Invalid=29161, Unknown=0, NotChecked=0, Total=58322 [2018-07-23 13:58:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-07-23 13:58:35,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2018-07-23 13:58:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-07-23 13:58:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 244 transitions. [2018-07-23 13:58:35,154 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 244 transitions. Word has length 242 [2018-07-23 13:58:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:35,154 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 244 transitions. [2018-07-23 13:58:35,154 INFO L472 AbstractCegarLoop]: Interpolant automaton has 242 states. [2018-07-23 13:58:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 244 transitions. [2018-07-23 13:58:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-07-23 13:58:35,155 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:35,155 INFO L357 BasicCegarLoop]: trace histogram [240, 1, 1, 1] [2018-07-23 13:58:35,155 INFO L414 AbstractCegarLoop]: === Iteration 241 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:35,155 INFO L82 PathProgramCache]: Analyzing trace with hash 576581472, now seen corresponding path program 240 times [2018-07-23 13:58:35,155 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 28920 backedges. 0 proven. 28920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:36,781 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:36,781 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [242] total 242 [2018-07-23 13:58:36,781 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:36,782 INFO L185 omatonBuilderFactory]: Interpolants [150018#(<= main_x 115), 150019#(<= main_x 116), 150016#(<= main_x 113), 150017#(<= main_x 114), 150022#(<= main_x 119), 150023#(<= main_x 120), 150020#(<= main_x 117), 150021#(<= main_x 118), 150026#(<= main_x 123), 150027#(<= main_x 124), 150024#(<= main_x 121), 150025#(<= main_x 122), 150030#(<= main_x 127), 150031#(<= main_x 128), 150028#(<= main_x 125), 150029#(<= main_x 126), 150034#(<= main_x 131), 150035#(<= main_x 132), 150032#(<= main_x 129), 150033#(<= main_x 130), 150038#(<= main_x 135), 150039#(<= main_x 136), 150036#(<= main_x 133), 150037#(<= main_x 134), 150042#(<= main_x 139), 150043#(<= main_x 140), 150040#(<= main_x 137), 150041#(<= main_x 138), 150046#(<= main_x 143), 150047#(<= main_x 144), 150044#(<= main_x 141), 150045#(<= main_x 142), 150050#(<= main_x 147), 150051#(<= main_x 148), 150048#(<= main_x 145), 150049#(<= main_x 146), 150054#(<= main_x 151), 150055#(<= main_x 152), 150052#(<= main_x 149), 150053#(<= main_x 150), 150058#(<= main_x 155), 150059#(<= main_x 156), 150056#(<= main_x 153), 150057#(<= main_x 154), 150062#(<= main_x 159), 150063#(<= main_x 160), 150060#(<= main_x 157), 150061#(<= main_x 158), 150066#(<= main_x 163), 150067#(<= main_x 164), 150064#(<= main_x 161), 150065#(<= main_x 162), 150070#(<= main_x 167), 150071#(<= main_x 168), 150068#(<= main_x 165), 150069#(<= main_x 166), 150074#(<= main_x 171), 150075#(<= main_x 172), 150072#(<= main_x 169), 150073#(<= main_x 170), 150078#(<= main_x 175), 150079#(<= main_x 176), 150076#(<= main_x 173), 150077#(<= main_x 174), 150082#(<= main_x 179), 150083#(<= main_x 180), 150080#(<= main_x 177), 150081#(<= main_x 178), 150086#(<= main_x 183), 150087#(<= main_x 184), 150084#(<= main_x 181), 150085#(<= main_x 182), 150090#(<= main_x 187), 150091#(<= main_x 188), 150088#(<= main_x 185), 150089#(<= main_x 186), 150094#(<= main_x 191), 150095#(<= main_x 192), 150092#(<= main_x 189), 150093#(<= main_x 190), 150098#(<= main_x 195), 150099#(<= main_x 196), 150096#(<= main_x 193), 150097#(<= main_x 194), 150102#(<= main_x 199), 150103#(<= main_x 200), 150100#(<= main_x 197), 150101#(<= main_x 198), 150106#(<= main_x 203), 150107#(<= main_x 204), 150104#(<= main_x 201), 150105#(<= main_x 202), 150110#(<= main_x 207), 150111#(<= main_x 208), 150108#(<= main_x 205), 150109#(<= main_x 206), 150114#(<= main_x 211), 150115#(<= main_x 212), 150112#(<= main_x 209), 150113#(<= main_x 210), 150118#(<= main_x 215), 150119#(<= main_x 216), 150116#(<= main_x 213), 150117#(<= main_x 214), 150122#(<= main_x 219), 150123#(<= main_x 220), 150120#(<= main_x 217), 150121#(<= main_x 218), 150126#(<= main_x 223), 150127#(<= main_x 224), 150124#(<= main_x 221), 150125#(<= main_x 222), 150130#(<= main_x 227), 150131#(<= main_x 228), 150128#(<= main_x 225), 150129#(<= main_x 226), 150134#(<= main_x 231), 150135#(<= main_x 232), 150132#(<= main_x 229), 150133#(<= main_x 230), 150138#(<= main_x 235), 150139#(<= main_x 236), 150136#(<= main_x 233), 150137#(<= main_x 234), 150142#(<= main_x 239), 150143#(<= main_x 240), 150140#(<= main_x 237), 150141#(<= main_x 238), 149902#false, 149903#(<= main_x 0), 149901#true, 149906#(<= main_x 3), 149907#(<= main_x 4), 149904#(<= main_x 1), 149905#(<= main_x 2), 149910#(<= main_x 7), 149911#(<= main_x 8), 149908#(<= main_x 5), 149909#(<= main_x 6), 149914#(<= main_x 11), 149915#(<= main_x 12), 149912#(<= main_x 9), 149913#(<= main_x 10), 149918#(<= main_x 15), 149919#(<= main_x 16), 149916#(<= main_x 13), 149917#(<= main_x 14), 149922#(<= main_x 19), 149923#(<= main_x 20), 149920#(<= main_x 17), 149921#(<= main_x 18), 149926#(<= main_x 23), 149927#(<= main_x 24), 149924#(<= main_x 21), 149925#(<= main_x 22), 149930#(<= main_x 27), 149931#(<= main_x 28), 149928#(<= main_x 25), 149929#(<= main_x 26), 149934#(<= main_x 31), 149935#(<= main_x 32), 149932#(<= main_x 29), 149933#(<= main_x 30), 149938#(<= main_x 35), 149939#(<= main_x 36), 149936#(<= main_x 33), 149937#(<= main_x 34), 149942#(<= main_x 39), 149943#(<= main_x 40), 149940#(<= main_x 37), 149941#(<= main_x 38), 149946#(<= main_x 43), 149947#(<= main_x 44), 149944#(<= main_x 41), 149945#(<= main_x 42), 149950#(<= main_x 47), 149951#(<= main_x 48), 149948#(<= main_x 45), 149949#(<= main_x 46), 149954#(<= main_x 51), 149955#(<= main_x 52), 149952#(<= main_x 49), 149953#(<= main_x 50), 149958#(<= main_x 55), 149959#(<= main_x 56), 149956#(<= main_x 53), 149957#(<= main_x 54), 149962#(<= main_x 59), 149963#(<= main_x 60), 149960#(<= main_x 57), 149961#(<= main_x 58), 149966#(<= main_x 63), 149967#(<= main_x 64), 149964#(<= main_x 61), 149965#(<= main_x 62), 149970#(<= main_x 67), 149971#(<= main_x 68), 149968#(<= main_x 65), 149969#(<= main_x 66), 149974#(<= main_x 71), 149975#(<= main_x 72), 149972#(<= main_x 69), 149973#(<= main_x 70), 149978#(<= main_x 75), 149979#(<= main_x 76), 149976#(<= main_x 73), 149977#(<= main_x 74), 149982#(<= main_x 79), 149983#(<= main_x 80), 149980#(<= main_x 77), 149981#(<= main_x 78), 149986#(<= main_x 83), 149987#(<= main_x 84), 149984#(<= main_x 81), 149985#(<= main_x 82), 149990#(<= main_x 87), 149991#(<= main_x 88), 149988#(<= main_x 85), 149989#(<= main_x 86), 149994#(<= main_x 91), 149995#(<= main_x 92), 149992#(<= main_x 89), 149993#(<= main_x 90), 149998#(<= main_x 95), 149999#(<= main_x 96), 149996#(<= main_x 93), 149997#(<= main_x 94), 150002#(<= main_x 99), 150003#(<= main_x 100), 150000#(<= main_x 97), 150001#(<= main_x 98), 150006#(<= main_x 103), 150007#(<= main_x 104), 150004#(<= main_x 101), 150005#(<= main_x 102), 150010#(<= main_x 107), 150011#(<= main_x 108), 150008#(<= main_x 105), 150009#(<= main_x 106), 150014#(<= main_x 111), 150015#(<= main_x 112), 150012#(<= main_x 109), 150013#(<= main_x 110)] [2018-07-23 13:58:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 28920 backedges. 0 proven. 28920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:36,783 INFO L450 AbstractCegarLoop]: Interpolant automaton has 243 states [2018-07-23 13:58:36,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2018-07-23 13:58:36,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29403, Invalid=29403, Unknown=0, NotChecked=0, Total=58806 [2018-07-23 13:58:36,789 INFO L87 Difference]: Start difference. First operand 244 states and 244 transitions. Second operand 243 states. [2018-07-23 13:58:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:37,391 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2018-07-23 13:58:37,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2018-07-23 13:58:37,391 INFO L78 Accepts]: Start accepts. Automaton has 243 states. Word has length 243 [2018-07-23 13:58:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:37,392 INFO L225 Difference]: With dead ends: 247 [2018-07-23 13:58:37,392 INFO L226 Difference]: Without dead ends: 245 [2018-07-23 13:58:37,394 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=29403, Invalid=29403, Unknown=0, NotChecked=0, Total=58806 [2018-07-23 13:58:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-07-23 13:58:37,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2018-07-23 13:58:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-07-23 13:58:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 245 transitions. [2018-07-23 13:58:37,397 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 245 transitions. Word has length 243 [2018-07-23 13:58:37,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:37,397 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 245 transitions. [2018-07-23 13:58:37,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 243 states. [2018-07-23 13:58:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 245 transitions. [2018-07-23 13:58:37,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-07-23 13:58:37,398 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:37,398 INFO L357 BasicCegarLoop]: trace histogram [241, 1, 1, 1] [2018-07-23 13:58:37,398 INFO L414 AbstractCegarLoop]: === Iteration 242 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:37,398 INFO L82 PathProgramCache]: Analyzing trace with hash 694152582, now seen corresponding path program 241 times [2018-07-23 13:58:37,398 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 29161 backedges. 0 proven. 29161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:38,958 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:38,958 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [243] total 243 [2018-07-23 13:58:38,959 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:38,959 INFO L185 omatonBuilderFactory]: Interpolants [151130#(<= main_x 0), 151131#(<= main_x 1), 151128#true, 151129#false, 151134#(<= main_x 4), 151135#(<= main_x 5), 151132#(<= main_x 2), 151133#(<= main_x 3), 151138#(<= main_x 8), 151139#(<= main_x 9), 151136#(<= main_x 6), 151137#(<= main_x 7), 151142#(<= main_x 12), 151143#(<= main_x 13), 151140#(<= main_x 10), 151141#(<= main_x 11), 151146#(<= main_x 16), 151147#(<= main_x 17), 151144#(<= main_x 14), 151145#(<= main_x 15), 151150#(<= main_x 20), 151151#(<= main_x 21), 151148#(<= main_x 18), 151149#(<= main_x 19), 151154#(<= main_x 24), 151155#(<= main_x 25), 151152#(<= main_x 22), 151153#(<= main_x 23), 151158#(<= main_x 28), 151159#(<= main_x 29), 151156#(<= main_x 26), 151157#(<= main_x 27), 151162#(<= main_x 32), 151163#(<= main_x 33), 151160#(<= main_x 30), 151161#(<= main_x 31), 151166#(<= main_x 36), 151167#(<= main_x 37), 151164#(<= main_x 34), 151165#(<= main_x 35), 151170#(<= main_x 40), 151171#(<= main_x 41), 151168#(<= main_x 38), 151169#(<= main_x 39), 151174#(<= main_x 44), 151175#(<= main_x 45), 151172#(<= main_x 42), 151173#(<= main_x 43), 151178#(<= main_x 48), 151179#(<= main_x 49), 151176#(<= main_x 46), 151177#(<= main_x 47), 151182#(<= main_x 52), 151183#(<= main_x 53), 151180#(<= main_x 50), 151181#(<= main_x 51), 151186#(<= main_x 56), 151187#(<= main_x 57), 151184#(<= main_x 54), 151185#(<= main_x 55), 151190#(<= main_x 60), 151191#(<= main_x 61), 151188#(<= main_x 58), 151189#(<= main_x 59), 151194#(<= main_x 64), 151195#(<= main_x 65), 151192#(<= main_x 62), 151193#(<= main_x 63), 151198#(<= main_x 68), 151199#(<= main_x 69), 151196#(<= main_x 66), 151197#(<= main_x 67), 151202#(<= main_x 72), 151203#(<= main_x 73), 151200#(<= main_x 70), 151201#(<= main_x 71), 151206#(<= main_x 76), 151207#(<= main_x 77), 151204#(<= main_x 74), 151205#(<= main_x 75), 151210#(<= main_x 80), 151211#(<= main_x 81), 151208#(<= main_x 78), 151209#(<= main_x 79), 151214#(<= main_x 84), 151215#(<= main_x 85), 151212#(<= main_x 82), 151213#(<= main_x 83), 151218#(<= main_x 88), 151219#(<= main_x 89), 151216#(<= main_x 86), 151217#(<= main_x 87), 151222#(<= main_x 92), 151223#(<= main_x 93), 151220#(<= main_x 90), 151221#(<= main_x 91), 151226#(<= main_x 96), 151227#(<= main_x 97), 151224#(<= main_x 94), 151225#(<= main_x 95), 151230#(<= main_x 100), 151231#(<= main_x 101), 151228#(<= main_x 98), 151229#(<= main_x 99), 151234#(<= main_x 104), 151235#(<= main_x 105), 151232#(<= main_x 102), 151233#(<= main_x 103), 151238#(<= main_x 108), 151239#(<= main_x 109), 151236#(<= main_x 106), 151237#(<= main_x 107), 151242#(<= main_x 112), 151243#(<= main_x 113), 151240#(<= main_x 110), 151241#(<= main_x 111), 151246#(<= main_x 116), 151247#(<= main_x 117), 151244#(<= main_x 114), 151245#(<= main_x 115), 151250#(<= main_x 120), 151251#(<= main_x 121), 151248#(<= main_x 118), 151249#(<= main_x 119), 151254#(<= main_x 124), 151255#(<= main_x 125), 151252#(<= main_x 122), 151253#(<= main_x 123), 151258#(<= main_x 128), 151259#(<= main_x 129), 151256#(<= main_x 126), 151257#(<= main_x 127), 151262#(<= main_x 132), 151263#(<= main_x 133), 151260#(<= main_x 130), 151261#(<= main_x 131), 151266#(<= main_x 136), 151267#(<= main_x 137), 151264#(<= main_x 134), 151265#(<= main_x 135), 151270#(<= main_x 140), 151271#(<= main_x 141), 151268#(<= main_x 138), 151269#(<= main_x 139), 151274#(<= main_x 144), 151275#(<= main_x 145), 151272#(<= main_x 142), 151273#(<= main_x 143), 151278#(<= main_x 148), 151279#(<= main_x 149), 151276#(<= main_x 146), 151277#(<= main_x 147), 151282#(<= main_x 152), 151283#(<= main_x 153), 151280#(<= main_x 150), 151281#(<= main_x 151), 151286#(<= main_x 156), 151287#(<= main_x 157), 151284#(<= main_x 154), 151285#(<= main_x 155), 151290#(<= main_x 160), 151291#(<= main_x 161), 151288#(<= main_x 158), 151289#(<= main_x 159), 151294#(<= main_x 164), 151295#(<= main_x 165), 151292#(<= main_x 162), 151293#(<= main_x 163), 151298#(<= main_x 168), 151299#(<= main_x 169), 151296#(<= main_x 166), 151297#(<= main_x 167), 151302#(<= main_x 172), 151303#(<= main_x 173), 151300#(<= main_x 170), 151301#(<= main_x 171), 151306#(<= main_x 176), 151307#(<= main_x 177), 151304#(<= main_x 174), 151305#(<= main_x 175), 151310#(<= main_x 180), 151311#(<= main_x 181), 151308#(<= main_x 178), 151309#(<= main_x 179), 151314#(<= main_x 184), 151315#(<= main_x 185), 151312#(<= main_x 182), 151313#(<= main_x 183), 151318#(<= main_x 188), 151319#(<= main_x 189), 151316#(<= main_x 186), 151317#(<= main_x 187), 151322#(<= main_x 192), 151323#(<= main_x 193), 151320#(<= main_x 190), 151321#(<= main_x 191), 151326#(<= main_x 196), 151327#(<= main_x 197), 151324#(<= main_x 194), 151325#(<= main_x 195), 151330#(<= main_x 200), 151331#(<= main_x 201), 151328#(<= main_x 198), 151329#(<= main_x 199), 151334#(<= main_x 204), 151335#(<= main_x 205), 151332#(<= main_x 202), 151333#(<= main_x 203), 151338#(<= main_x 208), 151339#(<= main_x 209), 151336#(<= main_x 206), 151337#(<= main_x 207), 151342#(<= main_x 212), 151343#(<= main_x 213), 151340#(<= main_x 210), 151341#(<= main_x 211), 151346#(<= main_x 216), 151347#(<= main_x 217), 151344#(<= main_x 214), 151345#(<= main_x 215), 151350#(<= main_x 220), 151351#(<= main_x 221), 151348#(<= main_x 218), 151349#(<= main_x 219), 151354#(<= main_x 224), 151355#(<= main_x 225), 151352#(<= main_x 222), 151353#(<= main_x 223), 151358#(<= main_x 228), 151359#(<= main_x 229), 151356#(<= main_x 226), 151357#(<= main_x 227), 151362#(<= main_x 232), 151363#(<= main_x 233), 151360#(<= main_x 230), 151361#(<= main_x 231), 151366#(<= main_x 236), 151367#(<= main_x 237), 151364#(<= main_x 234), 151365#(<= main_x 235), 151370#(<= main_x 240), 151371#(<= main_x 241), 151368#(<= main_x 238), 151369#(<= main_x 239)] [2018-07-23 13:58:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 29161 backedges. 0 proven. 29161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:38,961 INFO L450 AbstractCegarLoop]: Interpolant automaton has 244 states [2018-07-23 13:58:38,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 244 interpolants. [2018-07-23 13:58:38,967 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29646, Invalid=29646, Unknown=0, NotChecked=0, Total=59292 [2018-07-23 13:58:38,967 INFO L87 Difference]: Start difference. First operand 245 states and 245 transitions. Second operand 244 states. [2018-07-23 13:58:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:40,501 INFO L93 Difference]: Finished difference Result 248 states and 248 transitions. [2018-07-23 13:58:40,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2018-07-23 13:58:40,502 INFO L78 Accepts]: Start accepts. Automaton has 244 states. Word has length 244 [2018-07-23 13:58:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:40,502 INFO L225 Difference]: With dead ends: 248 [2018-07-23 13:58:40,502 INFO L226 Difference]: Without dead ends: 246 [2018-07-23 13:58:40,504 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29646, Invalid=29646, Unknown=0, NotChecked=0, Total=59292 [2018-07-23 13:58:40,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2018-07-23 13:58:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2018-07-23 13:58:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-07-23 13:58:40,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 246 transitions. [2018-07-23 13:58:40,508 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 246 transitions. Word has length 244 [2018-07-23 13:58:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:40,508 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 246 transitions. [2018-07-23 13:58:40,508 INFO L472 AbstractCegarLoop]: Interpolant automaton has 244 states. [2018-07-23 13:58:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 246 transitions. [2018-07-23 13:58:40,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-07-23 13:58:40,509 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:40,509 INFO L357 BasicCegarLoop]: trace histogram [242, 1, 1, 1] [2018-07-23 13:58:40,509 INFO L414 AbstractCegarLoop]: === Iteration 243 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:40,509 INFO L82 PathProgramCache]: Analyzing trace with hash 43889696, now seen corresponding path program 242 times [2018-07-23 13:58:40,509 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 29403 backedges. 0 proven. 29403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:42,265 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:42,266 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [244] total 244 [2018-07-23 13:58:42,266 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:42,266 INFO L185 omatonBuilderFactory]: Interpolants [152578#(<= main_x 216), 152579#(<= main_x 217), 152576#(<= main_x 214), 152577#(<= main_x 215), 152582#(<= main_x 220), 152583#(<= main_x 221), 152580#(<= main_x 218), 152581#(<= main_x 219), 152586#(<= main_x 224), 152587#(<= main_x 225), 152584#(<= main_x 222), 152585#(<= main_x 223), 152590#(<= main_x 228), 152591#(<= main_x 229), 152588#(<= main_x 226), 152589#(<= main_x 227), 152594#(<= main_x 232), 152595#(<= main_x 233), 152592#(<= main_x 230), 152593#(<= main_x 231), 152598#(<= main_x 236), 152599#(<= main_x 237), 152596#(<= main_x 234), 152597#(<= main_x 235), 152602#(<= main_x 240), 152603#(<= main_x 241), 152600#(<= main_x 238), 152601#(<= main_x 239), 152604#(<= main_x 242), 152362#(<= main_x 0), 152363#(<= main_x 1), 152360#true, 152361#false, 152366#(<= main_x 4), 152367#(<= main_x 5), 152364#(<= main_x 2), 152365#(<= main_x 3), 152370#(<= main_x 8), 152371#(<= main_x 9), 152368#(<= main_x 6), 152369#(<= main_x 7), 152374#(<= main_x 12), 152375#(<= main_x 13), 152372#(<= main_x 10), 152373#(<= main_x 11), 152378#(<= main_x 16), 152379#(<= main_x 17), 152376#(<= main_x 14), 152377#(<= main_x 15), 152382#(<= main_x 20), 152383#(<= main_x 21), 152380#(<= main_x 18), 152381#(<= main_x 19), 152386#(<= main_x 24), 152387#(<= main_x 25), 152384#(<= main_x 22), 152385#(<= main_x 23), 152390#(<= main_x 28), 152391#(<= main_x 29), 152388#(<= main_x 26), 152389#(<= main_x 27), 152394#(<= main_x 32), 152395#(<= main_x 33), 152392#(<= main_x 30), 152393#(<= main_x 31), 152398#(<= main_x 36), 152399#(<= main_x 37), 152396#(<= main_x 34), 152397#(<= main_x 35), 152402#(<= main_x 40), 152403#(<= main_x 41), 152400#(<= main_x 38), 152401#(<= main_x 39), 152406#(<= main_x 44), 152407#(<= main_x 45), 152404#(<= main_x 42), 152405#(<= main_x 43), 152410#(<= main_x 48), 152411#(<= main_x 49), 152408#(<= main_x 46), 152409#(<= main_x 47), 152414#(<= main_x 52), 152415#(<= main_x 53), 152412#(<= main_x 50), 152413#(<= main_x 51), 152418#(<= main_x 56), 152419#(<= main_x 57), 152416#(<= main_x 54), 152417#(<= main_x 55), 152422#(<= main_x 60), 152423#(<= main_x 61), 152420#(<= main_x 58), 152421#(<= main_x 59), 152426#(<= main_x 64), 152427#(<= main_x 65), 152424#(<= main_x 62), 152425#(<= main_x 63), 152430#(<= main_x 68), 152431#(<= main_x 69), 152428#(<= main_x 66), 152429#(<= main_x 67), 152434#(<= main_x 72), 152435#(<= main_x 73), 152432#(<= main_x 70), 152433#(<= main_x 71), 152438#(<= main_x 76), 152439#(<= main_x 77), 152436#(<= main_x 74), 152437#(<= main_x 75), 152442#(<= main_x 80), 152443#(<= main_x 81), 152440#(<= main_x 78), 152441#(<= main_x 79), 152446#(<= main_x 84), 152447#(<= main_x 85), 152444#(<= main_x 82), 152445#(<= main_x 83), 152450#(<= main_x 88), 152451#(<= main_x 89), 152448#(<= main_x 86), 152449#(<= main_x 87), 152454#(<= main_x 92), 152455#(<= main_x 93), 152452#(<= main_x 90), 152453#(<= main_x 91), 152458#(<= main_x 96), 152459#(<= main_x 97), 152456#(<= main_x 94), 152457#(<= main_x 95), 152462#(<= main_x 100), 152463#(<= main_x 101), 152460#(<= main_x 98), 152461#(<= main_x 99), 152466#(<= main_x 104), 152467#(<= main_x 105), 152464#(<= main_x 102), 152465#(<= main_x 103), 152470#(<= main_x 108), 152471#(<= main_x 109), 152468#(<= main_x 106), 152469#(<= main_x 107), 152474#(<= main_x 112), 152475#(<= main_x 113), 152472#(<= main_x 110), 152473#(<= main_x 111), 152478#(<= main_x 116), 152479#(<= main_x 117), 152476#(<= main_x 114), 152477#(<= main_x 115), 152482#(<= main_x 120), 152483#(<= main_x 121), 152480#(<= main_x 118), 152481#(<= main_x 119), 152486#(<= main_x 124), 152487#(<= main_x 125), 152484#(<= main_x 122), 152485#(<= main_x 123), 152490#(<= main_x 128), 152491#(<= main_x 129), 152488#(<= main_x 126), 152489#(<= main_x 127), 152494#(<= main_x 132), 152495#(<= main_x 133), 152492#(<= main_x 130), 152493#(<= main_x 131), 152498#(<= main_x 136), 152499#(<= main_x 137), 152496#(<= main_x 134), 152497#(<= main_x 135), 152502#(<= main_x 140), 152503#(<= main_x 141), 152500#(<= main_x 138), 152501#(<= main_x 139), 152506#(<= main_x 144), 152507#(<= main_x 145), 152504#(<= main_x 142), 152505#(<= main_x 143), 152510#(<= main_x 148), 152511#(<= main_x 149), 152508#(<= main_x 146), 152509#(<= main_x 147), 152514#(<= main_x 152), 152515#(<= main_x 153), 152512#(<= main_x 150), 152513#(<= main_x 151), 152518#(<= main_x 156), 152519#(<= main_x 157), 152516#(<= main_x 154), 152517#(<= main_x 155), 152522#(<= main_x 160), 152523#(<= main_x 161), 152520#(<= main_x 158), 152521#(<= main_x 159), 152526#(<= main_x 164), 152527#(<= main_x 165), 152524#(<= main_x 162), 152525#(<= main_x 163), 152530#(<= main_x 168), 152531#(<= main_x 169), 152528#(<= main_x 166), 152529#(<= main_x 167), 152534#(<= main_x 172), 152535#(<= main_x 173), 152532#(<= main_x 170), 152533#(<= main_x 171), 152538#(<= main_x 176), 152539#(<= main_x 177), 152536#(<= main_x 174), 152537#(<= main_x 175), 152542#(<= main_x 180), 152543#(<= main_x 181), 152540#(<= main_x 178), 152541#(<= main_x 179), 152546#(<= main_x 184), 152547#(<= main_x 185), 152544#(<= main_x 182), 152545#(<= main_x 183), 152550#(<= main_x 188), 152551#(<= main_x 189), 152548#(<= main_x 186), 152549#(<= main_x 187), 152554#(<= main_x 192), 152555#(<= main_x 193), 152552#(<= main_x 190), 152553#(<= main_x 191), 152558#(<= main_x 196), 152559#(<= main_x 197), 152556#(<= main_x 194), 152557#(<= main_x 195), 152562#(<= main_x 200), 152563#(<= main_x 201), 152560#(<= main_x 198), 152561#(<= main_x 199), 152566#(<= main_x 204), 152567#(<= main_x 205), 152564#(<= main_x 202), 152565#(<= main_x 203), 152570#(<= main_x 208), 152571#(<= main_x 209), 152568#(<= main_x 206), 152569#(<= main_x 207), 152574#(<= main_x 212), 152575#(<= main_x 213), 152572#(<= main_x 210), 152573#(<= main_x 211)] [2018-07-23 13:58:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 29403 backedges. 0 proven. 29403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:42,268 INFO L450 AbstractCegarLoop]: Interpolant automaton has 245 states [2018-07-23 13:58:42,272 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 245 interpolants. [2018-07-23 13:58:42,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29890, Invalid=29890, Unknown=0, NotChecked=0, Total=59780 [2018-07-23 13:58:42,274 INFO L87 Difference]: Start difference. First operand 246 states and 246 transitions. Second operand 245 states. [2018-07-23 13:58:43,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:43,690 INFO L93 Difference]: Finished difference Result 249 states and 249 transitions. [2018-07-23 13:58:43,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 245 states. [2018-07-23 13:58:43,690 INFO L78 Accepts]: Start accepts. Automaton has 245 states. Word has length 245 [2018-07-23 13:58:43,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:43,691 INFO L225 Difference]: With dead ends: 249 [2018-07-23 13:58:43,691 INFO L226 Difference]: Without dead ends: 247 [2018-07-23 13:58:43,693 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29890, Invalid=29890, Unknown=0, NotChecked=0, Total=59780 [2018-07-23 13:58:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-07-23 13:58:43,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2018-07-23 13:58:43,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-07-23 13:58:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 247 transitions. [2018-07-23 13:58:43,696 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 247 transitions. Word has length 245 [2018-07-23 13:58:43,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:43,696 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 247 transitions. [2018-07-23 13:58:43,696 INFO L472 AbstractCegarLoop]: Interpolant automaton has 245 states. [2018-07-23 13:58:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 247 transitions. [2018-07-23 13:58:43,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-07-23 13:58:43,697 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:43,697 INFO L357 BasicCegarLoop]: trace histogram [243, 1, 1, 1] [2018-07-23 13:58:43,697 INFO L414 AbstractCegarLoop]: === Iteration 244 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:43,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1360576710, now seen corresponding path program 243 times [2018-07-23 13:58:43,698 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 29646 backedges. 0 proven. 29646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:45,433 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:45,433 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [245] total 245 [2018-07-23 13:58:45,433 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:45,434 INFO L185 omatonBuilderFactory]: Interpolants [153602#(<= main_x 3), 153603#(<= main_x 4), 153600#(<= main_x 1), 153601#(<= main_x 2), 153606#(<= main_x 7), 153607#(<= main_x 8), 153604#(<= main_x 5), 153605#(<= main_x 6), 153610#(<= main_x 11), 153611#(<= main_x 12), 153608#(<= main_x 9), 153609#(<= main_x 10), 153614#(<= main_x 15), 153615#(<= main_x 16), 153612#(<= main_x 13), 153613#(<= main_x 14), 153618#(<= main_x 19), 153619#(<= main_x 20), 153616#(<= main_x 17), 153617#(<= main_x 18), 153622#(<= main_x 23), 153623#(<= main_x 24), 153620#(<= main_x 21), 153621#(<= main_x 22), 153626#(<= main_x 27), 153627#(<= main_x 28), 153624#(<= main_x 25), 153625#(<= main_x 26), 153630#(<= main_x 31), 153631#(<= main_x 32), 153628#(<= main_x 29), 153629#(<= main_x 30), 153634#(<= main_x 35), 153635#(<= main_x 36), 153632#(<= main_x 33), 153633#(<= main_x 34), 153638#(<= main_x 39), 153639#(<= main_x 40), 153636#(<= main_x 37), 153637#(<= main_x 38), 153642#(<= main_x 43), 153643#(<= main_x 44), 153640#(<= main_x 41), 153641#(<= main_x 42), 153646#(<= main_x 47), 153647#(<= main_x 48), 153644#(<= main_x 45), 153645#(<= main_x 46), 153650#(<= main_x 51), 153651#(<= main_x 52), 153648#(<= main_x 49), 153649#(<= main_x 50), 153654#(<= main_x 55), 153655#(<= main_x 56), 153652#(<= main_x 53), 153653#(<= main_x 54), 153658#(<= main_x 59), 153659#(<= main_x 60), 153656#(<= main_x 57), 153657#(<= main_x 58), 153662#(<= main_x 63), 153663#(<= main_x 64), 153660#(<= main_x 61), 153661#(<= main_x 62), 153666#(<= main_x 67), 153667#(<= main_x 68), 153664#(<= main_x 65), 153665#(<= main_x 66), 153670#(<= main_x 71), 153671#(<= main_x 72), 153668#(<= main_x 69), 153669#(<= main_x 70), 153674#(<= main_x 75), 153675#(<= main_x 76), 153672#(<= main_x 73), 153673#(<= main_x 74), 153678#(<= main_x 79), 153679#(<= main_x 80), 153676#(<= main_x 77), 153677#(<= main_x 78), 153682#(<= main_x 83), 153683#(<= main_x 84), 153680#(<= main_x 81), 153681#(<= main_x 82), 153686#(<= main_x 87), 153687#(<= main_x 88), 153684#(<= main_x 85), 153685#(<= main_x 86), 153690#(<= main_x 91), 153691#(<= main_x 92), 153688#(<= main_x 89), 153689#(<= main_x 90), 153694#(<= main_x 95), 153695#(<= main_x 96), 153692#(<= main_x 93), 153693#(<= main_x 94), 153698#(<= main_x 99), 153699#(<= main_x 100), 153696#(<= main_x 97), 153697#(<= main_x 98), 153702#(<= main_x 103), 153703#(<= main_x 104), 153700#(<= main_x 101), 153701#(<= main_x 102), 153706#(<= main_x 107), 153707#(<= main_x 108), 153704#(<= main_x 105), 153705#(<= main_x 106), 153710#(<= main_x 111), 153711#(<= main_x 112), 153708#(<= main_x 109), 153709#(<= main_x 110), 153714#(<= main_x 115), 153715#(<= main_x 116), 153712#(<= main_x 113), 153713#(<= main_x 114), 153718#(<= main_x 119), 153719#(<= main_x 120), 153716#(<= main_x 117), 153717#(<= main_x 118), 153722#(<= main_x 123), 153723#(<= main_x 124), 153720#(<= main_x 121), 153721#(<= main_x 122), 153726#(<= main_x 127), 153727#(<= main_x 128), 153724#(<= main_x 125), 153725#(<= main_x 126), 153730#(<= main_x 131), 153731#(<= main_x 132), 153728#(<= main_x 129), 153729#(<= main_x 130), 153734#(<= main_x 135), 153735#(<= main_x 136), 153732#(<= main_x 133), 153733#(<= main_x 134), 153738#(<= main_x 139), 153739#(<= main_x 140), 153736#(<= main_x 137), 153737#(<= main_x 138), 153742#(<= main_x 143), 153743#(<= main_x 144), 153740#(<= main_x 141), 153741#(<= main_x 142), 153746#(<= main_x 147), 153747#(<= main_x 148), 153744#(<= main_x 145), 153745#(<= main_x 146), 153750#(<= main_x 151), 153751#(<= main_x 152), 153748#(<= main_x 149), 153749#(<= main_x 150), 153754#(<= main_x 155), 153755#(<= main_x 156), 153752#(<= main_x 153), 153753#(<= main_x 154), 153758#(<= main_x 159), 153759#(<= main_x 160), 153756#(<= main_x 157), 153757#(<= main_x 158), 153762#(<= main_x 163), 153763#(<= main_x 164), 153760#(<= main_x 161), 153761#(<= main_x 162), 153766#(<= main_x 167), 153767#(<= main_x 168), 153764#(<= main_x 165), 153765#(<= main_x 166), 153770#(<= main_x 171), 153771#(<= main_x 172), 153768#(<= main_x 169), 153769#(<= main_x 170), 153774#(<= main_x 175), 153775#(<= main_x 176), 153772#(<= main_x 173), 153773#(<= main_x 174), 153778#(<= main_x 179), 153779#(<= main_x 180), 153776#(<= main_x 177), 153777#(<= main_x 178), 153782#(<= main_x 183), 153783#(<= main_x 184), 153780#(<= main_x 181), 153781#(<= main_x 182), 153786#(<= main_x 187), 153787#(<= main_x 188), 153784#(<= main_x 185), 153785#(<= main_x 186), 153790#(<= main_x 191), 153791#(<= main_x 192), 153788#(<= main_x 189), 153789#(<= main_x 190), 153794#(<= main_x 195), 153795#(<= main_x 196), 153792#(<= main_x 193), 153793#(<= main_x 194), 153798#(<= main_x 199), 153799#(<= main_x 200), 153796#(<= main_x 197), 153797#(<= main_x 198), 153802#(<= main_x 203), 153803#(<= main_x 204), 153800#(<= main_x 201), 153801#(<= main_x 202), 153806#(<= main_x 207), 153807#(<= main_x 208), 153804#(<= main_x 205), 153805#(<= main_x 206), 153810#(<= main_x 211), 153811#(<= main_x 212), 153808#(<= main_x 209), 153809#(<= main_x 210), 153814#(<= main_x 215), 153815#(<= main_x 216), 153812#(<= main_x 213), 153813#(<= main_x 214), 153818#(<= main_x 219), 153819#(<= main_x 220), 153816#(<= main_x 217), 153817#(<= main_x 218), 153822#(<= main_x 223), 153823#(<= main_x 224), 153820#(<= main_x 221), 153821#(<= main_x 222), 153826#(<= main_x 227), 153827#(<= main_x 228), 153824#(<= main_x 225), 153825#(<= main_x 226), 153830#(<= main_x 231), 153831#(<= main_x 232), 153828#(<= main_x 229), 153829#(<= main_x 230), 153834#(<= main_x 235), 153835#(<= main_x 236), 153832#(<= main_x 233), 153833#(<= main_x 234), 153838#(<= main_x 239), 153839#(<= main_x 240), 153836#(<= main_x 237), 153837#(<= main_x 238), 153842#(<= main_x 243), 153840#(<= main_x 241), 153841#(<= main_x 242), 153598#false, 153599#(<= main_x 0), 153597#true] [2018-07-23 13:58:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 29646 backedges. 0 proven. 29646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:45,435 INFO L450 AbstractCegarLoop]: Interpolant automaton has 246 states [2018-07-23 13:58:45,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 246 interpolants. [2018-07-23 13:58:45,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30135, Invalid=30135, Unknown=0, NotChecked=0, Total=60270 [2018-07-23 13:58:45,440 INFO L87 Difference]: Start difference. First operand 247 states and 247 transitions. Second operand 246 states. [2018-07-23 13:58:47,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:47,863 INFO L93 Difference]: Finished difference Result 250 states and 250 transitions. [2018-07-23 13:58:47,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2018-07-23 13:58:47,864 INFO L78 Accepts]: Start accepts. Automaton has 246 states. Word has length 246 [2018-07-23 13:58:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:47,864 INFO L225 Difference]: With dead ends: 250 [2018-07-23 13:58:47,864 INFO L226 Difference]: Without dead ends: 248 [2018-07-23 13:58:47,866 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=30135, Invalid=30135, Unknown=0, NotChecked=0, Total=60270 [2018-07-23 13:58:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-07-23 13:58:47,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2018-07-23 13:58:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2018-07-23 13:58:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 248 transitions. [2018-07-23 13:58:47,869 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 248 transitions. Word has length 246 [2018-07-23 13:58:47,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:47,869 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 248 transitions. [2018-07-23 13:58:47,869 INFO L472 AbstractCegarLoop]: Interpolant automaton has 246 states. [2018-07-23 13:58:47,869 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 248 transitions. [2018-07-23 13:58:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-07-23 13:58:47,869 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:47,870 INFO L357 BasicCegarLoop]: trace histogram [244, 1, 1, 1] [2018-07-23 13:58:47,870 INFO L414 AbstractCegarLoop]: === Iteration 245 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:47,870 INFO L82 PathProgramCache]: Analyzing trace with hash -771798816, now seen corresponding path program 244 times [2018-07-23 13:58:47,870 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 29890 backedges. 0 proven. 29890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:49,613 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:49,613 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [246] total 246 [2018-07-23 13:58:49,613 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:49,614 INFO L185 omatonBuilderFactory]: Interpolants [154839#true, 154842#(<= main_x 1), 154843#(<= main_x 2), 154840#false, 154841#(<= main_x 0), 154846#(<= main_x 5), 154847#(<= main_x 6), 154844#(<= main_x 3), 154845#(<= main_x 4), 154850#(<= main_x 9), 154851#(<= main_x 10), 154848#(<= main_x 7), 154849#(<= main_x 8), 154854#(<= main_x 13), 154855#(<= main_x 14), 154852#(<= main_x 11), 154853#(<= main_x 12), 154858#(<= main_x 17), 154859#(<= main_x 18), 154856#(<= main_x 15), 154857#(<= main_x 16), 154862#(<= main_x 21), 154863#(<= main_x 22), 154860#(<= main_x 19), 154861#(<= main_x 20), 154866#(<= main_x 25), 154867#(<= main_x 26), 154864#(<= main_x 23), 154865#(<= main_x 24), 154870#(<= main_x 29), 154871#(<= main_x 30), 154868#(<= main_x 27), 154869#(<= main_x 28), 154874#(<= main_x 33), 154875#(<= main_x 34), 154872#(<= main_x 31), 154873#(<= main_x 32), 154878#(<= main_x 37), 154879#(<= main_x 38), 154876#(<= main_x 35), 154877#(<= main_x 36), 154882#(<= main_x 41), 154883#(<= main_x 42), 154880#(<= main_x 39), 154881#(<= main_x 40), 154886#(<= main_x 45), 154887#(<= main_x 46), 154884#(<= main_x 43), 154885#(<= main_x 44), 154890#(<= main_x 49), 154891#(<= main_x 50), 154888#(<= main_x 47), 154889#(<= main_x 48), 154894#(<= main_x 53), 154895#(<= main_x 54), 154892#(<= main_x 51), 154893#(<= main_x 52), 154898#(<= main_x 57), 154899#(<= main_x 58), 154896#(<= main_x 55), 154897#(<= main_x 56), 154902#(<= main_x 61), 154903#(<= main_x 62), 154900#(<= main_x 59), 154901#(<= main_x 60), 154906#(<= main_x 65), 154907#(<= main_x 66), 154904#(<= main_x 63), 154905#(<= main_x 64), 154910#(<= main_x 69), 154911#(<= main_x 70), 154908#(<= main_x 67), 154909#(<= main_x 68), 154914#(<= main_x 73), 154915#(<= main_x 74), 154912#(<= main_x 71), 154913#(<= main_x 72), 154918#(<= main_x 77), 154919#(<= main_x 78), 154916#(<= main_x 75), 154917#(<= main_x 76), 154922#(<= main_x 81), 154923#(<= main_x 82), 154920#(<= main_x 79), 154921#(<= main_x 80), 154926#(<= main_x 85), 154927#(<= main_x 86), 154924#(<= main_x 83), 154925#(<= main_x 84), 154930#(<= main_x 89), 154931#(<= main_x 90), 154928#(<= main_x 87), 154929#(<= main_x 88), 154934#(<= main_x 93), 154935#(<= main_x 94), 154932#(<= main_x 91), 154933#(<= main_x 92), 154938#(<= main_x 97), 154939#(<= main_x 98), 154936#(<= main_x 95), 154937#(<= main_x 96), 154942#(<= main_x 101), 154943#(<= main_x 102), 154940#(<= main_x 99), 154941#(<= main_x 100), 154946#(<= main_x 105), 154947#(<= main_x 106), 154944#(<= main_x 103), 154945#(<= main_x 104), 154950#(<= main_x 109), 154951#(<= main_x 110), 154948#(<= main_x 107), 154949#(<= main_x 108), 154954#(<= main_x 113), 154955#(<= main_x 114), 154952#(<= main_x 111), 154953#(<= main_x 112), 154958#(<= main_x 117), 154959#(<= main_x 118), 154956#(<= main_x 115), 154957#(<= main_x 116), 154962#(<= main_x 121), 154963#(<= main_x 122), 154960#(<= main_x 119), 154961#(<= main_x 120), 154966#(<= main_x 125), 154967#(<= main_x 126), 154964#(<= main_x 123), 154965#(<= main_x 124), 154970#(<= main_x 129), 154971#(<= main_x 130), 154968#(<= main_x 127), 154969#(<= main_x 128), 154974#(<= main_x 133), 154975#(<= main_x 134), 154972#(<= main_x 131), 154973#(<= main_x 132), 154978#(<= main_x 137), 154979#(<= main_x 138), 154976#(<= main_x 135), 154977#(<= main_x 136), 154982#(<= main_x 141), 154983#(<= main_x 142), 154980#(<= main_x 139), 154981#(<= main_x 140), 154986#(<= main_x 145), 154987#(<= main_x 146), 154984#(<= main_x 143), 154985#(<= main_x 144), 154990#(<= main_x 149), 154991#(<= main_x 150), 154988#(<= main_x 147), 154989#(<= main_x 148), 154994#(<= main_x 153), 154995#(<= main_x 154), 154992#(<= main_x 151), 154993#(<= main_x 152), 154998#(<= main_x 157), 154999#(<= main_x 158), 154996#(<= main_x 155), 154997#(<= main_x 156), 155002#(<= main_x 161), 155003#(<= main_x 162), 155000#(<= main_x 159), 155001#(<= main_x 160), 155006#(<= main_x 165), 155007#(<= main_x 166), 155004#(<= main_x 163), 155005#(<= main_x 164), 155010#(<= main_x 169), 155011#(<= main_x 170), 155008#(<= main_x 167), 155009#(<= main_x 168), 155014#(<= main_x 173), 155015#(<= main_x 174), 155012#(<= main_x 171), 155013#(<= main_x 172), 155018#(<= main_x 177), 155019#(<= main_x 178), 155016#(<= main_x 175), 155017#(<= main_x 176), 155022#(<= main_x 181), 155023#(<= main_x 182), 155020#(<= main_x 179), 155021#(<= main_x 180), 155026#(<= main_x 185), 155027#(<= main_x 186), 155024#(<= main_x 183), 155025#(<= main_x 184), 155030#(<= main_x 189), 155031#(<= main_x 190), 155028#(<= main_x 187), 155029#(<= main_x 188), 155034#(<= main_x 193), 155035#(<= main_x 194), 155032#(<= main_x 191), 155033#(<= main_x 192), 155038#(<= main_x 197), 155039#(<= main_x 198), 155036#(<= main_x 195), 155037#(<= main_x 196), 155042#(<= main_x 201), 155043#(<= main_x 202), 155040#(<= main_x 199), 155041#(<= main_x 200), 155046#(<= main_x 205), 155047#(<= main_x 206), 155044#(<= main_x 203), 155045#(<= main_x 204), 155050#(<= main_x 209), 155051#(<= main_x 210), 155048#(<= main_x 207), 155049#(<= main_x 208), 155054#(<= main_x 213), 155055#(<= main_x 214), 155052#(<= main_x 211), 155053#(<= main_x 212), 155058#(<= main_x 217), 155059#(<= main_x 218), 155056#(<= main_x 215), 155057#(<= main_x 216), 155062#(<= main_x 221), 155063#(<= main_x 222), 155060#(<= main_x 219), 155061#(<= main_x 220), 155066#(<= main_x 225), 155067#(<= main_x 226), 155064#(<= main_x 223), 155065#(<= main_x 224), 155070#(<= main_x 229), 155071#(<= main_x 230), 155068#(<= main_x 227), 155069#(<= main_x 228), 155074#(<= main_x 233), 155075#(<= main_x 234), 155072#(<= main_x 231), 155073#(<= main_x 232), 155078#(<= main_x 237), 155079#(<= main_x 238), 155076#(<= main_x 235), 155077#(<= main_x 236), 155082#(<= main_x 241), 155083#(<= main_x 242), 155080#(<= main_x 239), 155081#(<= main_x 240), 155084#(<= main_x 243), 155085#(<= main_x 244)] [2018-07-23 13:58:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 29890 backedges. 0 proven. 29890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:49,615 INFO L450 AbstractCegarLoop]: Interpolant automaton has 247 states [2018-07-23 13:58:49,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 247 interpolants. [2018-07-23 13:58:49,619 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30381, Invalid=30381, Unknown=0, NotChecked=0, Total=60762 [2018-07-23 13:58:49,620 INFO L87 Difference]: Start difference. First operand 248 states and 248 transitions. Second operand 247 states. [2018-07-23 13:58:51,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:51,553 INFO L93 Difference]: Finished difference Result 251 states and 251 transitions. [2018-07-23 13:58:51,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2018-07-23 13:58:51,553 INFO L78 Accepts]: Start accepts. Automaton has 247 states. Word has length 247 [2018-07-23 13:58:51,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:51,553 INFO L225 Difference]: With dead ends: 251 [2018-07-23 13:58:51,553 INFO L226 Difference]: Without dead ends: 249 [2018-07-23 13:58:51,555 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=30381, Invalid=30381, Unknown=0, NotChecked=0, Total=60762 [2018-07-23 13:58:51,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-07-23 13:58:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2018-07-23 13:58:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-07-23 13:58:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 249 transitions. [2018-07-23 13:58:51,558 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 249 transitions. Word has length 247 [2018-07-23 13:58:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:51,559 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 249 transitions. [2018-07-23 13:58:51,559 INFO L472 AbstractCegarLoop]: Interpolant automaton has 247 states. [2018-07-23 13:58:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 249 transitions. [2018-07-23 13:58:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-07-23 13:58:51,559 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:51,559 INFO L357 BasicCegarLoop]: trace histogram [245, 1, 1, 1] [2018-07-23 13:58:51,559 INFO L414 AbstractCegarLoop]: === Iteration 246 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:51,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1844036614, now seen corresponding path program 245 times [2018-07-23 13:58:51,560 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30135 backedges. 0 proven. 30135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:53,406 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:53,406 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [247] total 247 [2018-07-23 13:58:53,406 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:53,407 INFO L185 omatonBuilderFactory]: Interpolants [156162#(<= main_x 74), 156163#(<= main_x 75), 156160#(<= main_x 72), 156161#(<= main_x 73), 156166#(<= main_x 78), 156167#(<= main_x 79), 156164#(<= main_x 76), 156165#(<= main_x 77), 156170#(<= main_x 82), 156171#(<= main_x 83), 156168#(<= main_x 80), 156169#(<= main_x 81), 156174#(<= main_x 86), 156175#(<= main_x 87), 156172#(<= main_x 84), 156173#(<= main_x 85), 156178#(<= main_x 90), 156179#(<= main_x 91), 156176#(<= main_x 88), 156177#(<= main_x 89), 156182#(<= main_x 94), 156183#(<= main_x 95), 156180#(<= main_x 92), 156181#(<= main_x 93), 156186#(<= main_x 98), 156187#(<= main_x 99), 156184#(<= main_x 96), 156185#(<= main_x 97), 156190#(<= main_x 102), 156191#(<= main_x 103), 156188#(<= main_x 100), 156189#(<= main_x 101), 156194#(<= main_x 106), 156195#(<= main_x 107), 156192#(<= main_x 104), 156193#(<= main_x 105), 156198#(<= main_x 110), 156199#(<= main_x 111), 156196#(<= main_x 108), 156197#(<= main_x 109), 156202#(<= main_x 114), 156203#(<= main_x 115), 156200#(<= main_x 112), 156201#(<= main_x 113), 156206#(<= main_x 118), 156207#(<= main_x 119), 156204#(<= main_x 116), 156205#(<= main_x 117), 156210#(<= main_x 122), 156211#(<= main_x 123), 156208#(<= main_x 120), 156209#(<= main_x 121), 156214#(<= main_x 126), 156215#(<= main_x 127), 156212#(<= main_x 124), 156213#(<= main_x 125), 156218#(<= main_x 130), 156219#(<= main_x 131), 156216#(<= main_x 128), 156217#(<= main_x 129), 156222#(<= main_x 134), 156223#(<= main_x 135), 156220#(<= main_x 132), 156221#(<= main_x 133), 156226#(<= main_x 138), 156227#(<= main_x 139), 156224#(<= main_x 136), 156225#(<= main_x 137), 156230#(<= main_x 142), 156231#(<= main_x 143), 156228#(<= main_x 140), 156229#(<= main_x 141), 156234#(<= main_x 146), 156235#(<= main_x 147), 156232#(<= main_x 144), 156233#(<= main_x 145), 156238#(<= main_x 150), 156239#(<= main_x 151), 156236#(<= main_x 148), 156237#(<= main_x 149), 156242#(<= main_x 154), 156243#(<= main_x 155), 156240#(<= main_x 152), 156241#(<= main_x 153), 156246#(<= main_x 158), 156247#(<= main_x 159), 156244#(<= main_x 156), 156245#(<= main_x 157), 156250#(<= main_x 162), 156251#(<= main_x 163), 156248#(<= main_x 160), 156249#(<= main_x 161), 156254#(<= main_x 166), 156255#(<= main_x 167), 156252#(<= main_x 164), 156253#(<= main_x 165), 156258#(<= main_x 170), 156259#(<= main_x 171), 156256#(<= main_x 168), 156257#(<= main_x 169), 156262#(<= main_x 174), 156263#(<= main_x 175), 156260#(<= main_x 172), 156261#(<= main_x 173), 156266#(<= main_x 178), 156267#(<= main_x 179), 156264#(<= main_x 176), 156265#(<= main_x 177), 156270#(<= main_x 182), 156271#(<= main_x 183), 156268#(<= main_x 180), 156269#(<= main_x 181), 156274#(<= main_x 186), 156275#(<= main_x 187), 156272#(<= main_x 184), 156273#(<= main_x 185), 156278#(<= main_x 190), 156279#(<= main_x 191), 156276#(<= main_x 188), 156277#(<= main_x 189), 156282#(<= main_x 194), 156283#(<= main_x 195), 156280#(<= main_x 192), 156281#(<= main_x 193), 156286#(<= main_x 198), 156287#(<= main_x 199), 156284#(<= main_x 196), 156285#(<= main_x 197), 156290#(<= main_x 202), 156291#(<= main_x 203), 156288#(<= main_x 200), 156289#(<= main_x 201), 156294#(<= main_x 206), 156295#(<= main_x 207), 156292#(<= main_x 204), 156293#(<= main_x 205), 156298#(<= main_x 210), 156299#(<= main_x 211), 156296#(<= main_x 208), 156297#(<= main_x 209), 156302#(<= main_x 214), 156303#(<= main_x 215), 156300#(<= main_x 212), 156301#(<= main_x 213), 156306#(<= main_x 218), 156307#(<= main_x 219), 156304#(<= main_x 216), 156305#(<= main_x 217), 156310#(<= main_x 222), 156311#(<= main_x 223), 156308#(<= main_x 220), 156309#(<= main_x 221), 156314#(<= main_x 226), 156315#(<= main_x 227), 156312#(<= main_x 224), 156313#(<= main_x 225), 156318#(<= main_x 230), 156319#(<= main_x 231), 156316#(<= main_x 228), 156317#(<= main_x 229), 156322#(<= main_x 234), 156323#(<= main_x 235), 156320#(<= main_x 232), 156321#(<= main_x 233), 156326#(<= main_x 238), 156327#(<= main_x 239), 156324#(<= main_x 236), 156325#(<= main_x 237), 156330#(<= main_x 242), 156331#(<= main_x 243), 156328#(<= main_x 240), 156329#(<= main_x 241), 156332#(<= main_x 244), 156333#(<= main_x 245), 156086#true, 156087#false, 156090#(<= main_x 2), 156091#(<= main_x 3), 156088#(<= main_x 0), 156089#(<= main_x 1), 156094#(<= main_x 6), 156095#(<= main_x 7), 156092#(<= main_x 4), 156093#(<= main_x 5), 156098#(<= main_x 10), 156099#(<= main_x 11), 156096#(<= main_x 8), 156097#(<= main_x 9), 156102#(<= main_x 14), 156103#(<= main_x 15), 156100#(<= main_x 12), 156101#(<= main_x 13), 156106#(<= main_x 18), 156107#(<= main_x 19), 156104#(<= main_x 16), 156105#(<= main_x 17), 156110#(<= main_x 22), 156111#(<= main_x 23), 156108#(<= main_x 20), 156109#(<= main_x 21), 156114#(<= main_x 26), 156115#(<= main_x 27), 156112#(<= main_x 24), 156113#(<= main_x 25), 156118#(<= main_x 30), 156119#(<= main_x 31), 156116#(<= main_x 28), 156117#(<= main_x 29), 156122#(<= main_x 34), 156123#(<= main_x 35), 156120#(<= main_x 32), 156121#(<= main_x 33), 156126#(<= main_x 38), 156127#(<= main_x 39), 156124#(<= main_x 36), 156125#(<= main_x 37), 156130#(<= main_x 42), 156131#(<= main_x 43), 156128#(<= main_x 40), 156129#(<= main_x 41), 156134#(<= main_x 46), 156135#(<= main_x 47), 156132#(<= main_x 44), 156133#(<= main_x 45), 156138#(<= main_x 50), 156139#(<= main_x 51), 156136#(<= main_x 48), 156137#(<= main_x 49), 156142#(<= main_x 54), 156143#(<= main_x 55), 156140#(<= main_x 52), 156141#(<= main_x 53), 156146#(<= main_x 58), 156147#(<= main_x 59), 156144#(<= main_x 56), 156145#(<= main_x 57), 156150#(<= main_x 62), 156151#(<= main_x 63), 156148#(<= main_x 60), 156149#(<= main_x 61), 156154#(<= main_x 66), 156155#(<= main_x 67), 156152#(<= main_x 64), 156153#(<= main_x 65), 156158#(<= main_x 70), 156159#(<= main_x 71), 156156#(<= main_x 68), 156157#(<= main_x 69)] [2018-07-23 13:58:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30135 backedges. 0 proven. 30135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:53,408 INFO L450 AbstractCegarLoop]: Interpolant automaton has 248 states [2018-07-23 13:58:53,411 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 248 interpolants. [2018-07-23 13:58:53,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30628, Invalid=30628, Unknown=0, NotChecked=0, Total=61256 [2018-07-23 13:58:53,413 INFO L87 Difference]: Start difference. First operand 249 states and 249 transitions. Second operand 248 states. [2018-07-23 13:58:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:54,722 INFO L93 Difference]: Finished difference Result 252 states and 252 transitions. [2018-07-23 13:58:54,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2018-07-23 13:58:54,722 INFO L78 Accepts]: Start accepts. Automaton has 248 states. Word has length 248 [2018-07-23 13:58:54,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:54,723 INFO L225 Difference]: With dead ends: 252 [2018-07-23 13:58:54,723 INFO L226 Difference]: Without dead ends: 250 [2018-07-23 13:58:54,724 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=30628, Invalid=30628, Unknown=0, NotChecked=0, Total=61256 [2018-07-23 13:58:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-07-23 13:58:54,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2018-07-23 13:58:54,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-07-23 13:58:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 250 transitions. [2018-07-23 13:58:54,727 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 250 transitions. Word has length 248 [2018-07-23 13:58:54,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:54,727 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 250 transitions. [2018-07-23 13:58:54,727 INFO L472 AbstractCegarLoop]: Interpolant automaton has 248 states. [2018-07-23 13:58:54,727 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 250 transitions. [2018-07-23 13:58:54,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-07-23 13:58:54,727 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:54,728 INFO L357 BasicCegarLoop]: trace histogram [246, 1, 1, 1] [2018-07-23 13:58:54,728 INFO L414 AbstractCegarLoop]: === Iteration 247 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:54,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1330556320, now seen corresponding path program 246 times [2018-07-23 13:58:54,728 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:58:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 30381 backedges. 0 proven. 30381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:56,687 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:58:56,688 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [248] total 248 [2018-07-23 13:58:56,688 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:58:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:56,688 INFO L185 omatonBuilderFactory]: Interpolants [157338#true, 157339#false, 157342#(<= main_x 2), 157343#(<= main_x 3), 157340#(<= main_x 0), 157341#(<= main_x 1), 157346#(<= main_x 6), 157347#(<= main_x 7), 157344#(<= main_x 4), 157345#(<= main_x 5), 157350#(<= main_x 10), 157351#(<= main_x 11), 157348#(<= main_x 8), 157349#(<= main_x 9), 157354#(<= main_x 14), 157355#(<= main_x 15), 157352#(<= main_x 12), 157353#(<= main_x 13), 157358#(<= main_x 18), 157359#(<= main_x 19), 157356#(<= main_x 16), 157357#(<= main_x 17), 157362#(<= main_x 22), 157363#(<= main_x 23), 157360#(<= main_x 20), 157361#(<= main_x 21), 157366#(<= main_x 26), 157367#(<= main_x 27), 157364#(<= main_x 24), 157365#(<= main_x 25), 157370#(<= main_x 30), 157371#(<= main_x 31), 157368#(<= main_x 28), 157369#(<= main_x 29), 157374#(<= main_x 34), 157375#(<= main_x 35), 157372#(<= main_x 32), 157373#(<= main_x 33), 157378#(<= main_x 38), 157379#(<= main_x 39), 157376#(<= main_x 36), 157377#(<= main_x 37), 157382#(<= main_x 42), 157383#(<= main_x 43), 157380#(<= main_x 40), 157381#(<= main_x 41), 157386#(<= main_x 46), 157387#(<= main_x 47), 157384#(<= main_x 44), 157385#(<= main_x 45), 157390#(<= main_x 50), 157391#(<= main_x 51), 157388#(<= main_x 48), 157389#(<= main_x 49), 157394#(<= main_x 54), 157395#(<= main_x 55), 157392#(<= main_x 52), 157393#(<= main_x 53), 157398#(<= main_x 58), 157399#(<= main_x 59), 157396#(<= main_x 56), 157397#(<= main_x 57), 157402#(<= main_x 62), 157403#(<= main_x 63), 157400#(<= main_x 60), 157401#(<= main_x 61), 157406#(<= main_x 66), 157407#(<= main_x 67), 157404#(<= main_x 64), 157405#(<= main_x 65), 157410#(<= main_x 70), 157411#(<= main_x 71), 157408#(<= main_x 68), 157409#(<= main_x 69), 157414#(<= main_x 74), 157415#(<= main_x 75), 157412#(<= main_x 72), 157413#(<= main_x 73), 157418#(<= main_x 78), 157419#(<= main_x 79), 157416#(<= main_x 76), 157417#(<= main_x 77), 157422#(<= main_x 82), 157423#(<= main_x 83), 157420#(<= main_x 80), 157421#(<= main_x 81), 157426#(<= main_x 86), 157427#(<= main_x 87), 157424#(<= main_x 84), 157425#(<= main_x 85), 157430#(<= main_x 90), 157431#(<= main_x 91), 157428#(<= main_x 88), 157429#(<= main_x 89), 157434#(<= main_x 94), 157435#(<= main_x 95), 157432#(<= main_x 92), 157433#(<= main_x 93), 157438#(<= main_x 98), 157439#(<= main_x 99), 157436#(<= main_x 96), 157437#(<= main_x 97), 157442#(<= main_x 102), 157443#(<= main_x 103), 157440#(<= main_x 100), 157441#(<= main_x 101), 157446#(<= main_x 106), 157447#(<= main_x 107), 157444#(<= main_x 104), 157445#(<= main_x 105), 157450#(<= main_x 110), 157451#(<= main_x 111), 157448#(<= main_x 108), 157449#(<= main_x 109), 157454#(<= main_x 114), 157455#(<= main_x 115), 157452#(<= main_x 112), 157453#(<= main_x 113), 157458#(<= main_x 118), 157459#(<= main_x 119), 157456#(<= main_x 116), 157457#(<= main_x 117), 157462#(<= main_x 122), 157463#(<= main_x 123), 157460#(<= main_x 120), 157461#(<= main_x 121), 157466#(<= main_x 126), 157467#(<= main_x 127), 157464#(<= main_x 124), 157465#(<= main_x 125), 157470#(<= main_x 130), 157471#(<= main_x 131), 157468#(<= main_x 128), 157469#(<= main_x 129), 157474#(<= main_x 134), 157475#(<= main_x 135), 157472#(<= main_x 132), 157473#(<= main_x 133), 157478#(<= main_x 138), 157479#(<= main_x 139), 157476#(<= main_x 136), 157477#(<= main_x 137), 157482#(<= main_x 142), 157483#(<= main_x 143), 157480#(<= main_x 140), 157481#(<= main_x 141), 157486#(<= main_x 146), 157487#(<= main_x 147), 157484#(<= main_x 144), 157485#(<= main_x 145), 157490#(<= main_x 150), 157491#(<= main_x 151), 157488#(<= main_x 148), 157489#(<= main_x 149), 157494#(<= main_x 154), 157495#(<= main_x 155), 157492#(<= main_x 152), 157493#(<= main_x 153), 157498#(<= main_x 158), 157499#(<= main_x 159), 157496#(<= main_x 156), 157497#(<= main_x 157), 157502#(<= main_x 162), 157503#(<= main_x 163), 157500#(<= main_x 160), 157501#(<= main_x 161), 157506#(<= main_x 166), 157507#(<= main_x 167), 157504#(<= main_x 164), 157505#(<= main_x 165), 157510#(<= main_x 170), 157511#(<= main_x 171), 157508#(<= main_x 168), 157509#(<= main_x 169), 157514#(<= main_x 174), 157515#(<= main_x 175), 157512#(<= main_x 172), 157513#(<= main_x 173), 157518#(<= main_x 178), 157519#(<= main_x 179), 157516#(<= main_x 176), 157517#(<= main_x 177), 157522#(<= main_x 182), 157523#(<= main_x 183), 157520#(<= main_x 180), 157521#(<= main_x 181), 157526#(<= main_x 186), 157527#(<= main_x 187), 157524#(<= main_x 184), 157525#(<= main_x 185), 157530#(<= main_x 190), 157531#(<= main_x 191), 157528#(<= main_x 188), 157529#(<= main_x 189), 157534#(<= main_x 194), 157535#(<= main_x 195), 157532#(<= main_x 192), 157533#(<= main_x 193), 157538#(<= main_x 198), 157539#(<= main_x 199), 157536#(<= main_x 196), 157537#(<= main_x 197), 157542#(<= main_x 202), 157543#(<= main_x 203), 157540#(<= main_x 200), 157541#(<= main_x 201), 157546#(<= main_x 206), 157547#(<= main_x 207), 157544#(<= main_x 204), 157545#(<= main_x 205), 157550#(<= main_x 210), 157551#(<= main_x 211), 157548#(<= main_x 208), 157549#(<= main_x 209), 157554#(<= main_x 214), 157555#(<= main_x 215), 157552#(<= main_x 212), 157553#(<= main_x 213), 157558#(<= main_x 218), 157559#(<= main_x 219), 157556#(<= main_x 216), 157557#(<= main_x 217), 157562#(<= main_x 222), 157563#(<= main_x 223), 157560#(<= main_x 220), 157561#(<= main_x 221), 157566#(<= main_x 226), 157567#(<= main_x 227), 157564#(<= main_x 224), 157565#(<= main_x 225), 157570#(<= main_x 230), 157571#(<= main_x 231), 157568#(<= main_x 228), 157569#(<= main_x 229), 157574#(<= main_x 234), 157575#(<= main_x 235), 157572#(<= main_x 232), 157573#(<= main_x 233), 157578#(<= main_x 238), 157579#(<= main_x 239), 157576#(<= main_x 236), 157577#(<= main_x 237), 157582#(<= main_x 242), 157583#(<= main_x 243), 157580#(<= main_x 240), 157581#(<= main_x 241), 157586#(<= main_x 246), 157584#(<= main_x 244), 157585#(<= main_x 245)] [2018-07-23 13:58:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 30381 backedges. 0 proven. 30381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:58:56,690 INFO L450 AbstractCegarLoop]: Interpolant automaton has 249 states [2018-07-23 13:58:56,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 249 interpolants. [2018-07-23 13:58:56,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30876, Invalid=30876, Unknown=0, NotChecked=0, Total=61752 [2018-07-23 13:58:56,694 INFO L87 Difference]: Start difference. First operand 250 states and 250 transitions. Second operand 249 states. [2018-07-23 13:58:58,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:58:58,225 INFO L93 Difference]: Finished difference Result 253 states and 253 transitions. [2018-07-23 13:58:58,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2018-07-23 13:58:58,225 INFO L78 Accepts]: Start accepts. Automaton has 249 states. Word has length 249 [2018-07-23 13:58:58,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:58:58,225 INFO L225 Difference]: With dead ends: 253 [2018-07-23 13:58:58,225 INFO L226 Difference]: Without dead ends: 251 [2018-07-23 13:58:58,228 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=30876, Invalid=30876, Unknown=0, NotChecked=0, Total=61752 [2018-07-23 13:58:58,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-07-23 13:58:58,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2018-07-23 13:58:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-07-23 13:58:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2018-07-23 13:58:58,230 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 249 [2018-07-23 13:58:58,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:58:58,230 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2018-07-23 13:58:58,230 INFO L472 AbstractCegarLoop]: Interpolant automaton has 249 states. [2018-07-23 13:58:58,230 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2018-07-23 13:58:58,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-07-23 13:58:58,231 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:58:58,231 INFO L357 BasicCegarLoop]: trace histogram [247, 1, 1, 1] [2018-07-23 13:58:58,231 INFO L414 AbstractCegarLoop]: === Iteration 248 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:58:58,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1702430906, now seen corresponding path program 247 times [2018-07-23 13:58:58,231 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:58:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:59:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30628 backedges. 0 proven. 30628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:00,210 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:59:00,211 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [249] total 249 [2018-07-23 13:59:00,211 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:59:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:00,211 INFO L185 omatonBuilderFactory]: Interpolants [158722#(<= main_x 125), 158723#(<= main_x 126), 158720#(<= main_x 123), 158721#(<= main_x 124), 158726#(<= main_x 129), 158727#(<= main_x 130), 158724#(<= main_x 127), 158725#(<= main_x 128), 158730#(<= main_x 133), 158731#(<= main_x 134), 158728#(<= main_x 131), 158729#(<= main_x 132), 158734#(<= main_x 137), 158735#(<= main_x 138), 158732#(<= main_x 135), 158733#(<= main_x 136), 158738#(<= main_x 141), 158739#(<= main_x 142), 158736#(<= main_x 139), 158737#(<= main_x 140), 158742#(<= main_x 145), 158743#(<= main_x 146), 158740#(<= main_x 143), 158741#(<= main_x 144), 158746#(<= main_x 149), 158747#(<= main_x 150), 158744#(<= main_x 147), 158745#(<= main_x 148), 158750#(<= main_x 153), 158751#(<= main_x 154), 158748#(<= main_x 151), 158749#(<= main_x 152), 158754#(<= main_x 157), 158755#(<= main_x 158), 158752#(<= main_x 155), 158753#(<= main_x 156), 158758#(<= main_x 161), 158759#(<= main_x 162), 158756#(<= main_x 159), 158757#(<= main_x 160), 158762#(<= main_x 165), 158763#(<= main_x 166), 158760#(<= main_x 163), 158761#(<= main_x 164), 158766#(<= main_x 169), 158767#(<= main_x 170), 158764#(<= main_x 167), 158765#(<= main_x 168), 158770#(<= main_x 173), 158771#(<= main_x 174), 158768#(<= main_x 171), 158769#(<= main_x 172), 158774#(<= main_x 177), 158775#(<= main_x 178), 158772#(<= main_x 175), 158773#(<= main_x 176), 158778#(<= main_x 181), 158779#(<= main_x 182), 158776#(<= main_x 179), 158777#(<= main_x 180), 158782#(<= main_x 185), 158783#(<= main_x 186), 158780#(<= main_x 183), 158781#(<= main_x 184), 158786#(<= main_x 189), 158787#(<= main_x 190), 158784#(<= main_x 187), 158785#(<= main_x 188), 158790#(<= main_x 193), 158791#(<= main_x 194), 158788#(<= main_x 191), 158789#(<= main_x 192), 158794#(<= main_x 197), 158795#(<= main_x 198), 158792#(<= main_x 195), 158793#(<= main_x 196), 158798#(<= main_x 201), 158799#(<= main_x 202), 158796#(<= main_x 199), 158797#(<= main_x 200), 158802#(<= main_x 205), 158803#(<= main_x 206), 158800#(<= main_x 203), 158801#(<= main_x 204), 158806#(<= main_x 209), 158807#(<= main_x 210), 158804#(<= main_x 207), 158805#(<= main_x 208), 158810#(<= main_x 213), 158811#(<= main_x 214), 158808#(<= main_x 211), 158809#(<= main_x 212), 158814#(<= main_x 217), 158815#(<= main_x 218), 158812#(<= main_x 215), 158813#(<= main_x 216), 158818#(<= main_x 221), 158819#(<= main_x 222), 158816#(<= main_x 219), 158817#(<= main_x 220), 158822#(<= main_x 225), 158823#(<= main_x 226), 158820#(<= main_x 223), 158821#(<= main_x 224), 158826#(<= main_x 229), 158827#(<= main_x 230), 158824#(<= main_x 227), 158825#(<= main_x 228), 158830#(<= main_x 233), 158831#(<= main_x 234), 158828#(<= main_x 231), 158829#(<= main_x 232), 158834#(<= main_x 237), 158835#(<= main_x 238), 158832#(<= main_x 235), 158833#(<= main_x 236), 158838#(<= main_x 241), 158839#(<= main_x 242), 158836#(<= main_x 239), 158837#(<= main_x 240), 158842#(<= main_x 245), 158843#(<= main_x 246), 158840#(<= main_x 243), 158841#(<= main_x 244), 158844#(<= main_x 247), 158595#true, 158598#(<= main_x 1), 158599#(<= main_x 2), 158596#false, 158597#(<= main_x 0), 158602#(<= main_x 5), 158603#(<= main_x 6), 158600#(<= main_x 3), 158601#(<= main_x 4), 158606#(<= main_x 9), 158607#(<= main_x 10), 158604#(<= main_x 7), 158605#(<= main_x 8), 158610#(<= main_x 13), 158611#(<= main_x 14), 158608#(<= main_x 11), 158609#(<= main_x 12), 158614#(<= main_x 17), 158615#(<= main_x 18), 158612#(<= main_x 15), 158613#(<= main_x 16), 158618#(<= main_x 21), 158619#(<= main_x 22), 158616#(<= main_x 19), 158617#(<= main_x 20), 158622#(<= main_x 25), 158623#(<= main_x 26), 158620#(<= main_x 23), 158621#(<= main_x 24), 158626#(<= main_x 29), 158627#(<= main_x 30), 158624#(<= main_x 27), 158625#(<= main_x 28), 158630#(<= main_x 33), 158631#(<= main_x 34), 158628#(<= main_x 31), 158629#(<= main_x 32), 158634#(<= main_x 37), 158635#(<= main_x 38), 158632#(<= main_x 35), 158633#(<= main_x 36), 158638#(<= main_x 41), 158639#(<= main_x 42), 158636#(<= main_x 39), 158637#(<= main_x 40), 158642#(<= main_x 45), 158643#(<= main_x 46), 158640#(<= main_x 43), 158641#(<= main_x 44), 158646#(<= main_x 49), 158647#(<= main_x 50), 158644#(<= main_x 47), 158645#(<= main_x 48), 158650#(<= main_x 53), 158651#(<= main_x 54), 158648#(<= main_x 51), 158649#(<= main_x 52), 158654#(<= main_x 57), 158655#(<= main_x 58), 158652#(<= main_x 55), 158653#(<= main_x 56), 158658#(<= main_x 61), 158659#(<= main_x 62), 158656#(<= main_x 59), 158657#(<= main_x 60), 158662#(<= main_x 65), 158663#(<= main_x 66), 158660#(<= main_x 63), 158661#(<= main_x 64), 158666#(<= main_x 69), 158667#(<= main_x 70), 158664#(<= main_x 67), 158665#(<= main_x 68), 158670#(<= main_x 73), 158671#(<= main_x 74), 158668#(<= main_x 71), 158669#(<= main_x 72), 158674#(<= main_x 77), 158675#(<= main_x 78), 158672#(<= main_x 75), 158673#(<= main_x 76), 158678#(<= main_x 81), 158679#(<= main_x 82), 158676#(<= main_x 79), 158677#(<= main_x 80), 158682#(<= main_x 85), 158683#(<= main_x 86), 158680#(<= main_x 83), 158681#(<= main_x 84), 158686#(<= main_x 89), 158687#(<= main_x 90), 158684#(<= main_x 87), 158685#(<= main_x 88), 158690#(<= main_x 93), 158691#(<= main_x 94), 158688#(<= main_x 91), 158689#(<= main_x 92), 158694#(<= main_x 97), 158695#(<= main_x 98), 158692#(<= main_x 95), 158693#(<= main_x 96), 158698#(<= main_x 101), 158699#(<= main_x 102), 158696#(<= main_x 99), 158697#(<= main_x 100), 158702#(<= main_x 105), 158703#(<= main_x 106), 158700#(<= main_x 103), 158701#(<= main_x 104), 158706#(<= main_x 109), 158707#(<= main_x 110), 158704#(<= main_x 107), 158705#(<= main_x 108), 158710#(<= main_x 113), 158711#(<= main_x 114), 158708#(<= main_x 111), 158709#(<= main_x 112), 158714#(<= main_x 117), 158715#(<= main_x 118), 158712#(<= main_x 115), 158713#(<= main_x 116), 158718#(<= main_x 121), 158719#(<= main_x 122), 158716#(<= main_x 119), 158717#(<= main_x 120)] [2018-07-23 13:59:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 30628 backedges. 0 proven. 30628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:00,213 INFO L450 AbstractCegarLoop]: Interpolant automaton has 250 states [2018-07-23 13:59:00,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 250 interpolants. [2018-07-23 13:59:00,217 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31125, Invalid=31125, Unknown=0, NotChecked=0, Total=62250 [2018-07-23 13:59:00,217 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand 250 states. [2018-07-23 13:59:00,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:59:00,925 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2018-07-23 13:59:00,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2018-07-23 13:59:00,925 INFO L78 Accepts]: Start accepts. Automaton has 250 states. Word has length 250 [2018-07-23 13:59:00,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:59:00,925 INFO L225 Difference]: With dead ends: 254 [2018-07-23 13:59:00,925 INFO L226 Difference]: Without dead ends: 252 [2018-07-23 13:59:00,927 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=31125, Invalid=31125, Unknown=0, NotChecked=0, Total=62250 [2018-07-23 13:59:00,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-07-23 13:59:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2018-07-23 13:59:00,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-07-23 13:59:00,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 252 transitions. [2018-07-23 13:59:00,929 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 252 transitions. Word has length 250 [2018-07-23 13:59:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:59:00,929 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 252 transitions. [2018-07-23 13:59:00,930 INFO L472 AbstractCegarLoop]: Interpolant automaton has 250 states. [2018-07-23 13:59:00,930 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 252 transitions. [2018-07-23 13:59:00,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-07-23 13:59:00,930 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:59:00,930 INFO L357 BasicCegarLoop]: trace histogram [248, 1, 1, 1] [2018-07-23 13:59:00,930 INFO L414 AbstractCegarLoop]: === Iteration 249 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:59:00,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1235754400, now seen corresponding path program 248 times [2018-07-23 13:59:00,931 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:59:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:59:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30876 backedges. 0 proven. 30876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:02,798 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:59:02,798 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [250] total 250 [2018-07-23 13:59:02,798 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:59:02,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:02,799 INFO L185 omatonBuilderFactory]: Interpolants [159858#false, 159859#(<= main_x 0), 159857#true, 159862#(<= main_x 3), 159863#(<= main_x 4), 159860#(<= main_x 1), 159861#(<= main_x 2), 159866#(<= main_x 7), 159867#(<= main_x 8), 159864#(<= main_x 5), 159865#(<= main_x 6), 159870#(<= main_x 11), 159871#(<= main_x 12), 159868#(<= main_x 9), 159869#(<= main_x 10), 159874#(<= main_x 15), 159875#(<= main_x 16), 159872#(<= main_x 13), 159873#(<= main_x 14), 159878#(<= main_x 19), 159879#(<= main_x 20), 159876#(<= main_x 17), 159877#(<= main_x 18), 159882#(<= main_x 23), 159883#(<= main_x 24), 159880#(<= main_x 21), 159881#(<= main_x 22), 159886#(<= main_x 27), 159887#(<= main_x 28), 159884#(<= main_x 25), 159885#(<= main_x 26), 159890#(<= main_x 31), 159891#(<= main_x 32), 159888#(<= main_x 29), 159889#(<= main_x 30), 159894#(<= main_x 35), 159895#(<= main_x 36), 159892#(<= main_x 33), 159893#(<= main_x 34), 159898#(<= main_x 39), 159899#(<= main_x 40), 159896#(<= main_x 37), 159897#(<= main_x 38), 159902#(<= main_x 43), 159903#(<= main_x 44), 159900#(<= main_x 41), 159901#(<= main_x 42), 159906#(<= main_x 47), 159907#(<= main_x 48), 159904#(<= main_x 45), 159905#(<= main_x 46), 159910#(<= main_x 51), 159911#(<= main_x 52), 159908#(<= main_x 49), 159909#(<= main_x 50), 159914#(<= main_x 55), 159915#(<= main_x 56), 159912#(<= main_x 53), 159913#(<= main_x 54), 159918#(<= main_x 59), 159919#(<= main_x 60), 159916#(<= main_x 57), 159917#(<= main_x 58), 159922#(<= main_x 63), 159923#(<= main_x 64), 159920#(<= main_x 61), 159921#(<= main_x 62), 159926#(<= main_x 67), 159927#(<= main_x 68), 159924#(<= main_x 65), 159925#(<= main_x 66), 159930#(<= main_x 71), 159931#(<= main_x 72), 159928#(<= main_x 69), 159929#(<= main_x 70), 159934#(<= main_x 75), 159935#(<= main_x 76), 159932#(<= main_x 73), 159933#(<= main_x 74), 159938#(<= main_x 79), 159939#(<= main_x 80), 159936#(<= main_x 77), 159937#(<= main_x 78), 159942#(<= main_x 83), 159943#(<= main_x 84), 159940#(<= main_x 81), 159941#(<= main_x 82), 159946#(<= main_x 87), 159947#(<= main_x 88), 159944#(<= main_x 85), 159945#(<= main_x 86), 159950#(<= main_x 91), 159951#(<= main_x 92), 159948#(<= main_x 89), 159949#(<= main_x 90), 159954#(<= main_x 95), 159955#(<= main_x 96), 159952#(<= main_x 93), 159953#(<= main_x 94), 159958#(<= main_x 99), 159959#(<= main_x 100), 159956#(<= main_x 97), 159957#(<= main_x 98), 159962#(<= main_x 103), 159963#(<= main_x 104), 159960#(<= main_x 101), 159961#(<= main_x 102), 159966#(<= main_x 107), 159967#(<= main_x 108), 159964#(<= main_x 105), 159965#(<= main_x 106), 159970#(<= main_x 111), 159971#(<= main_x 112), 159968#(<= main_x 109), 159969#(<= main_x 110), 159974#(<= main_x 115), 159975#(<= main_x 116), 159972#(<= main_x 113), 159973#(<= main_x 114), 159978#(<= main_x 119), 159979#(<= main_x 120), 159976#(<= main_x 117), 159977#(<= main_x 118), 159982#(<= main_x 123), 159983#(<= main_x 124), 159980#(<= main_x 121), 159981#(<= main_x 122), 159986#(<= main_x 127), 159987#(<= main_x 128), 159984#(<= main_x 125), 159985#(<= main_x 126), 159990#(<= main_x 131), 159991#(<= main_x 132), 159988#(<= main_x 129), 159989#(<= main_x 130), 159994#(<= main_x 135), 159995#(<= main_x 136), 159992#(<= main_x 133), 159993#(<= main_x 134), 159998#(<= main_x 139), 159999#(<= main_x 140), 159996#(<= main_x 137), 159997#(<= main_x 138), 160002#(<= main_x 143), 160003#(<= main_x 144), 160000#(<= main_x 141), 160001#(<= main_x 142), 160006#(<= main_x 147), 160007#(<= main_x 148), 160004#(<= main_x 145), 160005#(<= main_x 146), 160010#(<= main_x 151), 160011#(<= main_x 152), 160008#(<= main_x 149), 160009#(<= main_x 150), 160014#(<= main_x 155), 160015#(<= main_x 156), 160012#(<= main_x 153), 160013#(<= main_x 154), 160018#(<= main_x 159), 160019#(<= main_x 160), 160016#(<= main_x 157), 160017#(<= main_x 158), 160022#(<= main_x 163), 160023#(<= main_x 164), 160020#(<= main_x 161), 160021#(<= main_x 162), 160026#(<= main_x 167), 160027#(<= main_x 168), 160024#(<= main_x 165), 160025#(<= main_x 166), 160030#(<= main_x 171), 160031#(<= main_x 172), 160028#(<= main_x 169), 160029#(<= main_x 170), 160034#(<= main_x 175), 160035#(<= main_x 176), 160032#(<= main_x 173), 160033#(<= main_x 174), 160038#(<= main_x 179), 160039#(<= main_x 180), 160036#(<= main_x 177), 160037#(<= main_x 178), 160042#(<= main_x 183), 160043#(<= main_x 184), 160040#(<= main_x 181), 160041#(<= main_x 182), 160046#(<= main_x 187), 160047#(<= main_x 188), 160044#(<= main_x 185), 160045#(<= main_x 186), 160050#(<= main_x 191), 160051#(<= main_x 192), 160048#(<= main_x 189), 160049#(<= main_x 190), 160054#(<= main_x 195), 160055#(<= main_x 196), 160052#(<= main_x 193), 160053#(<= main_x 194), 160058#(<= main_x 199), 160059#(<= main_x 200), 160056#(<= main_x 197), 160057#(<= main_x 198), 160062#(<= main_x 203), 160063#(<= main_x 204), 160060#(<= main_x 201), 160061#(<= main_x 202), 160066#(<= main_x 207), 160067#(<= main_x 208), 160064#(<= main_x 205), 160065#(<= main_x 206), 160070#(<= main_x 211), 160071#(<= main_x 212), 160068#(<= main_x 209), 160069#(<= main_x 210), 160074#(<= main_x 215), 160075#(<= main_x 216), 160072#(<= main_x 213), 160073#(<= main_x 214), 160078#(<= main_x 219), 160079#(<= main_x 220), 160076#(<= main_x 217), 160077#(<= main_x 218), 160082#(<= main_x 223), 160083#(<= main_x 224), 160080#(<= main_x 221), 160081#(<= main_x 222), 160086#(<= main_x 227), 160087#(<= main_x 228), 160084#(<= main_x 225), 160085#(<= main_x 226), 160090#(<= main_x 231), 160091#(<= main_x 232), 160088#(<= main_x 229), 160089#(<= main_x 230), 160094#(<= main_x 235), 160095#(<= main_x 236), 160092#(<= main_x 233), 160093#(<= main_x 234), 160098#(<= main_x 239), 160099#(<= main_x 240), 160096#(<= main_x 237), 160097#(<= main_x 238), 160102#(<= main_x 243), 160103#(<= main_x 244), 160100#(<= main_x 241), 160101#(<= main_x 242), 160106#(<= main_x 247), 160107#(<= main_x 248), 160104#(<= main_x 245), 160105#(<= main_x 246)] [2018-07-23 13:59:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 30876 backedges. 0 proven. 30876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:02,800 INFO L450 AbstractCegarLoop]: Interpolant automaton has 251 states [2018-07-23 13:59:02,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 251 interpolants. [2018-07-23 13:59:02,804 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31375, Invalid=31375, Unknown=0, NotChecked=0, Total=62750 [2018-07-23 13:59:02,804 INFO L87 Difference]: Start difference. First operand 252 states and 252 transitions. Second operand 251 states. [2018-07-23 13:59:04,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:59:04,332 INFO L93 Difference]: Finished difference Result 255 states and 255 transitions. [2018-07-23 13:59:04,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2018-07-23 13:59:04,332 INFO L78 Accepts]: Start accepts. Automaton has 251 states. Word has length 251 [2018-07-23 13:59:04,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:59:04,333 INFO L225 Difference]: With dead ends: 255 [2018-07-23 13:59:04,333 INFO L226 Difference]: Without dead ends: 253 [2018-07-23 13:59:04,334 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31375, Invalid=31375, Unknown=0, NotChecked=0, Total=62750 [2018-07-23 13:59:04,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-07-23 13:59:04,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2018-07-23 13:59:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-07-23 13:59:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 253 transitions. [2018-07-23 13:59:04,337 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 253 transitions. Word has length 251 [2018-07-23 13:59:04,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:59:04,337 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 253 transitions. [2018-07-23 13:59:04,337 INFO L472 AbstractCegarLoop]: Interpolant automaton has 251 states. [2018-07-23 13:59:04,337 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 253 transitions. [2018-07-23 13:59:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-07-23 13:59:04,338 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:59:04,338 INFO L357 BasicCegarLoop]: trace histogram [249, 1, 1, 1] [2018-07-23 13:59:04,338 INFO L414 AbstractCegarLoop]: === Iteration 250 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:59:04,338 INFO L82 PathProgramCache]: Analyzing trace with hash 346315398, now seen corresponding path program 249 times [2018-07-23 13:59:04,338 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:59:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:59:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 31125 backedges. 0 proven. 31125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:06,183 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:59:06,183 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [251] total 251 [2018-07-23 13:59:06,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:59:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:06,184 INFO L185 omatonBuilderFactory]: Interpolants [161282#(<= main_x 156), 161283#(<= main_x 157), 161280#(<= main_x 154), 161281#(<= main_x 155), 161286#(<= main_x 160), 161287#(<= main_x 161), 161284#(<= main_x 158), 161285#(<= main_x 159), 161290#(<= main_x 164), 161291#(<= main_x 165), 161288#(<= main_x 162), 161289#(<= main_x 163), 161294#(<= main_x 168), 161295#(<= main_x 169), 161292#(<= main_x 166), 161293#(<= main_x 167), 161298#(<= main_x 172), 161299#(<= main_x 173), 161296#(<= main_x 170), 161297#(<= main_x 171), 161302#(<= main_x 176), 161303#(<= main_x 177), 161300#(<= main_x 174), 161301#(<= main_x 175), 161306#(<= main_x 180), 161307#(<= main_x 181), 161304#(<= main_x 178), 161305#(<= main_x 179), 161310#(<= main_x 184), 161311#(<= main_x 185), 161308#(<= main_x 182), 161309#(<= main_x 183), 161314#(<= main_x 188), 161315#(<= main_x 189), 161312#(<= main_x 186), 161313#(<= main_x 187), 161318#(<= main_x 192), 161319#(<= main_x 193), 161316#(<= main_x 190), 161317#(<= main_x 191), 161322#(<= main_x 196), 161323#(<= main_x 197), 161320#(<= main_x 194), 161321#(<= main_x 195), 161326#(<= main_x 200), 161327#(<= main_x 201), 161324#(<= main_x 198), 161325#(<= main_x 199), 161330#(<= main_x 204), 161331#(<= main_x 205), 161328#(<= main_x 202), 161329#(<= main_x 203), 161334#(<= main_x 208), 161335#(<= main_x 209), 161332#(<= main_x 206), 161333#(<= main_x 207), 161338#(<= main_x 212), 161339#(<= main_x 213), 161336#(<= main_x 210), 161337#(<= main_x 211), 161342#(<= main_x 216), 161343#(<= main_x 217), 161340#(<= main_x 214), 161341#(<= main_x 215), 161346#(<= main_x 220), 161347#(<= main_x 221), 161344#(<= main_x 218), 161345#(<= main_x 219), 161350#(<= main_x 224), 161351#(<= main_x 225), 161348#(<= main_x 222), 161349#(<= main_x 223), 161354#(<= main_x 228), 161355#(<= main_x 229), 161352#(<= main_x 226), 161353#(<= main_x 227), 161358#(<= main_x 232), 161359#(<= main_x 233), 161356#(<= main_x 230), 161357#(<= main_x 231), 161362#(<= main_x 236), 161363#(<= main_x 237), 161360#(<= main_x 234), 161361#(<= main_x 235), 161366#(<= main_x 240), 161367#(<= main_x 241), 161364#(<= main_x 238), 161365#(<= main_x 239), 161370#(<= main_x 244), 161371#(<= main_x 245), 161368#(<= main_x 242), 161369#(<= main_x 243), 161374#(<= main_x 248), 161375#(<= main_x 249), 161372#(<= main_x 246), 161373#(<= main_x 247), 161126#(<= main_x 0), 161127#(<= main_x 1), 161124#true, 161125#false, 161130#(<= main_x 4), 161131#(<= main_x 5), 161128#(<= main_x 2), 161129#(<= main_x 3), 161134#(<= main_x 8), 161135#(<= main_x 9), 161132#(<= main_x 6), 161133#(<= main_x 7), 161138#(<= main_x 12), 161139#(<= main_x 13), 161136#(<= main_x 10), 161137#(<= main_x 11), 161142#(<= main_x 16), 161143#(<= main_x 17), 161140#(<= main_x 14), 161141#(<= main_x 15), 161146#(<= main_x 20), 161147#(<= main_x 21), 161144#(<= main_x 18), 161145#(<= main_x 19), 161150#(<= main_x 24), 161151#(<= main_x 25), 161148#(<= main_x 22), 161149#(<= main_x 23), 161154#(<= main_x 28), 161155#(<= main_x 29), 161152#(<= main_x 26), 161153#(<= main_x 27), 161158#(<= main_x 32), 161159#(<= main_x 33), 161156#(<= main_x 30), 161157#(<= main_x 31), 161162#(<= main_x 36), 161163#(<= main_x 37), 161160#(<= main_x 34), 161161#(<= main_x 35), 161166#(<= main_x 40), 161167#(<= main_x 41), 161164#(<= main_x 38), 161165#(<= main_x 39), 161170#(<= main_x 44), 161171#(<= main_x 45), 161168#(<= main_x 42), 161169#(<= main_x 43), 161174#(<= main_x 48), 161175#(<= main_x 49), 161172#(<= main_x 46), 161173#(<= main_x 47), 161178#(<= main_x 52), 161179#(<= main_x 53), 161176#(<= main_x 50), 161177#(<= main_x 51), 161182#(<= main_x 56), 161183#(<= main_x 57), 161180#(<= main_x 54), 161181#(<= main_x 55), 161186#(<= main_x 60), 161187#(<= main_x 61), 161184#(<= main_x 58), 161185#(<= main_x 59), 161190#(<= main_x 64), 161191#(<= main_x 65), 161188#(<= main_x 62), 161189#(<= main_x 63), 161194#(<= main_x 68), 161195#(<= main_x 69), 161192#(<= main_x 66), 161193#(<= main_x 67), 161198#(<= main_x 72), 161199#(<= main_x 73), 161196#(<= main_x 70), 161197#(<= main_x 71), 161202#(<= main_x 76), 161203#(<= main_x 77), 161200#(<= main_x 74), 161201#(<= main_x 75), 161206#(<= main_x 80), 161207#(<= main_x 81), 161204#(<= main_x 78), 161205#(<= main_x 79), 161210#(<= main_x 84), 161211#(<= main_x 85), 161208#(<= main_x 82), 161209#(<= main_x 83), 161214#(<= main_x 88), 161215#(<= main_x 89), 161212#(<= main_x 86), 161213#(<= main_x 87), 161218#(<= main_x 92), 161219#(<= main_x 93), 161216#(<= main_x 90), 161217#(<= main_x 91), 161222#(<= main_x 96), 161223#(<= main_x 97), 161220#(<= main_x 94), 161221#(<= main_x 95), 161226#(<= main_x 100), 161227#(<= main_x 101), 161224#(<= main_x 98), 161225#(<= main_x 99), 161230#(<= main_x 104), 161231#(<= main_x 105), 161228#(<= main_x 102), 161229#(<= main_x 103), 161234#(<= main_x 108), 161235#(<= main_x 109), 161232#(<= main_x 106), 161233#(<= main_x 107), 161238#(<= main_x 112), 161239#(<= main_x 113), 161236#(<= main_x 110), 161237#(<= main_x 111), 161242#(<= main_x 116), 161243#(<= main_x 117), 161240#(<= main_x 114), 161241#(<= main_x 115), 161246#(<= main_x 120), 161247#(<= main_x 121), 161244#(<= main_x 118), 161245#(<= main_x 119), 161250#(<= main_x 124), 161251#(<= main_x 125), 161248#(<= main_x 122), 161249#(<= main_x 123), 161254#(<= main_x 128), 161255#(<= main_x 129), 161252#(<= main_x 126), 161253#(<= main_x 127), 161258#(<= main_x 132), 161259#(<= main_x 133), 161256#(<= main_x 130), 161257#(<= main_x 131), 161262#(<= main_x 136), 161263#(<= main_x 137), 161260#(<= main_x 134), 161261#(<= main_x 135), 161266#(<= main_x 140), 161267#(<= main_x 141), 161264#(<= main_x 138), 161265#(<= main_x 139), 161270#(<= main_x 144), 161271#(<= main_x 145), 161268#(<= main_x 142), 161269#(<= main_x 143), 161274#(<= main_x 148), 161275#(<= main_x 149), 161272#(<= main_x 146), 161273#(<= main_x 147), 161278#(<= main_x 152), 161279#(<= main_x 153), 161276#(<= main_x 150), 161277#(<= main_x 151)] [2018-07-23 13:59:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 31125 backedges. 0 proven. 31125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:06,185 INFO L450 AbstractCegarLoop]: Interpolant automaton has 252 states [2018-07-23 13:59:06,188 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 252 interpolants. [2018-07-23 13:59:06,189 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31626, Invalid=31626, Unknown=0, NotChecked=0, Total=63252 [2018-07-23 13:59:06,189 INFO L87 Difference]: Start difference. First operand 253 states and 253 transitions. Second operand 252 states. [2018-07-23 13:59:06,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:59:06,773 INFO L93 Difference]: Finished difference Result 256 states and 256 transitions. [2018-07-23 13:59:06,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 252 states. [2018-07-23 13:59:06,773 INFO L78 Accepts]: Start accepts. Automaton has 252 states. Word has length 252 [2018-07-23 13:59:06,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:59:06,774 INFO L225 Difference]: With dead ends: 256 [2018-07-23 13:59:06,774 INFO L226 Difference]: Without dead ends: 254 [2018-07-23 13:59:06,775 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31626, Invalid=31626, Unknown=0, NotChecked=0, Total=63252 [2018-07-23 13:59:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-07-23 13:59:06,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2018-07-23 13:59:06,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-07-23 13:59:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 254 transitions. [2018-07-23 13:59:06,777 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 254 transitions. Word has length 252 [2018-07-23 13:59:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:59:06,778 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 254 transitions. [2018-07-23 13:59:06,778 INFO L472 AbstractCegarLoop]: Interpolant automaton has 252 states. [2018-07-23 13:59:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 254 transitions. [2018-07-23 13:59:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-07-23 13:59:06,778 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:59:06,778 INFO L357 BasicCegarLoop]: trace histogram [250, 1, 1, 1] [2018-07-23 13:59:06,778 INFO L414 AbstractCegarLoop]: === Iteration 251 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:59:06,779 INFO L82 PathProgramCache]: Analyzing trace with hash 2145838880, now seen corresponding path program 250 times [2018-07-23 13:59:06,779 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:59:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:59:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 31375 backedges. 0 proven. 31375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:08,664 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:59:08,664 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [252] total 252 [2018-07-23 13:59:08,664 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:59:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:08,665 INFO L185 omatonBuilderFactory]: Interpolants [162398#(<= main_x 0), 162399#(<= main_x 1), 162396#true, 162397#false, 162402#(<= main_x 4), 162403#(<= main_x 5), 162400#(<= main_x 2), 162401#(<= main_x 3), 162406#(<= main_x 8), 162407#(<= main_x 9), 162404#(<= main_x 6), 162405#(<= main_x 7), 162410#(<= main_x 12), 162411#(<= main_x 13), 162408#(<= main_x 10), 162409#(<= main_x 11), 162414#(<= main_x 16), 162415#(<= main_x 17), 162412#(<= main_x 14), 162413#(<= main_x 15), 162418#(<= main_x 20), 162419#(<= main_x 21), 162416#(<= main_x 18), 162417#(<= main_x 19), 162422#(<= main_x 24), 162423#(<= main_x 25), 162420#(<= main_x 22), 162421#(<= main_x 23), 162426#(<= main_x 28), 162427#(<= main_x 29), 162424#(<= main_x 26), 162425#(<= main_x 27), 162430#(<= main_x 32), 162431#(<= main_x 33), 162428#(<= main_x 30), 162429#(<= main_x 31), 162434#(<= main_x 36), 162435#(<= main_x 37), 162432#(<= main_x 34), 162433#(<= main_x 35), 162438#(<= main_x 40), 162439#(<= main_x 41), 162436#(<= main_x 38), 162437#(<= main_x 39), 162442#(<= main_x 44), 162443#(<= main_x 45), 162440#(<= main_x 42), 162441#(<= main_x 43), 162446#(<= main_x 48), 162447#(<= main_x 49), 162444#(<= main_x 46), 162445#(<= main_x 47), 162450#(<= main_x 52), 162451#(<= main_x 53), 162448#(<= main_x 50), 162449#(<= main_x 51), 162454#(<= main_x 56), 162455#(<= main_x 57), 162452#(<= main_x 54), 162453#(<= main_x 55), 162458#(<= main_x 60), 162459#(<= main_x 61), 162456#(<= main_x 58), 162457#(<= main_x 59), 162462#(<= main_x 64), 162463#(<= main_x 65), 162460#(<= main_x 62), 162461#(<= main_x 63), 162466#(<= main_x 68), 162467#(<= main_x 69), 162464#(<= main_x 66), 162465#(<= main_x 67), 162470#(<= main_x 72), 162471#(<= main_x 73), 162468#(<= main_x 70), 162469#(<= main_x 71), 162474#(<= main_x 76), 162475#(<= main_x 77), 162472#(<= main_x 74), 162473#(<= main_x 75), 162478#(<= main_x 80), 162479#(<= main_x 81), 162476#(<= main_x 78), 162477#(<= main_x 79), 162482#(<= main_x 84), 162483#(<= main_x 85), 162480#(<= main_x 82), 162481#(<= main_x 83), 162486#(<= main_x 88), 162487#(<= main_x 89), 162484#(<= main_x 86), 162485#(<= main_x 87), 162490#(<= main_x 92), 162491#(<= main_x 93), 162488#(<= main_x 90), 162489#(<= main_x 91), 162494#(<= main_x 96), 162495#(<= main_x 97), 162492#(<= main_x 94), 162493#(<= main_x 95), 162498#(<= main_x 100), 162499#(<= main_x 101), 162496#(<= main_x 98), 162497#(<= main_x 99), 162502#(<= main_x 104), 162503#(<= main_x 105), 162500#(<= main_x 102), 162501#(<= main_x 103), 162506#(<= main_x 108), 162507#(<= main_x 109), 162504#(<= main_x 106), 162505#(<= main_x 107), 162510#(<= main_x 112), 162511#(<= main_x 113), 162508#(<= main_x 110), 162509#(<= main_x 111), 162514#(<= main_x 116), 162515#(<= main_x 117), 162512#(<= main_x 114), 162513#(<= main_x 115), 162518#(<= main_x 120), 162519#(<= main_x 121), 162516#(<= main_x 118), 162517#(<= main_x 119), 162522#(<= main_x 124), 162523#(<= main_x 125), 162520#(<= main_x 122), 162521#(<= main_x 123), 162526#(<= main_x 128), 162527#(<= main_x 129), 162524#(<= main_x 126), 162525#(<= main_x 127), 162530#(<= main_x 132), 162531#(<= main_x 133), 162528#(<= main_x 130), 162529#(<= main_x 131), 162534#(<= main_x 136), 162535#(<= main_x 137), 162532#(<= main_x 134), 162533#(<= main_x 135), 162538#(<= main_x 140), 162539#(<= main_x 141), 162536#(<= main_x 138), 162537#(<= main_x 139), 162542#(<= main_x 144), 162543#(<= main_x 145), 162540#(<= main_x 142), 162541#(<= main_x 143), 162546#(<= main_x 148), 162547#(<= main_x 149), 162544#(<= main_x 146), 162545#(<= main_x 147), 162550#(<= main_x 152), 162551#(<= main_x 153), 162548#(<= main_x 150), 162549#(<= main_x 151), 162554#(<= main_x 156), 162555#(<= main_x 157), 162552#(<= main_x 154), 162553#(<= main_x 155), 162558#(<= main_x 160), 162559#(<= main_x 161), 162556#(<= main_x 158), 162557#(<= main_x 159), 162562#(<= main_x 164), 162563#(<= main_x 165), 162560#(<= main_x 162), 162561#(<= main_x 163), 162566#(<= main_x 168), 162567#(<= main_x 169), 162564#(<= main_x 166), 162565#(<= main_x 167), 162570#(<= main_x 172), 162571#(<= main_x 173), 162568#(<= main_x 170), 162569#(<= main_x 171), 162574#(<= main_x 176), 162575#(<= main_x 177), 162572#(<= main_x 174), 162573#(<= main_x 175), 162578#(<= main_x 180), 162579#(<= main_x 181), 162576#(<= main_x 178), 162577#(<= main_x 179), 162582#(<= main_x 184), 162583#(<= main_x 185), 162580#(<= main_x 182), 162581#(<= main_x 183), 162586#(<= main_x 188), 162587#(<= main_x 189), 162584#(<= main_x 186), 162585#(<= main_x 187), 162590#(<= main_x 192), 162591#(<= main_x 193), 162588#(<= main_x 190), 162589#(<= main_x 191), 162594#(<= main_x 196), 162595#(<= main_x 197), 162592#(<= main_x 194), 162593#(<= main_x 195), 162598#(<= main_x 200), 162599#(<= main_x 201), 162596#(<= main_x 198), 162597#(<= main_x 199), 162602#(<= main_x 204), 162603#(<= main_x 205), 162600#(<= main_x 202), 162601#(<= main_x 203), 162606#(<= main_x 208), 162607#(<= main_x 209), 162604#(<= main_x 206), 162605#(<= main_x 207), 162610#(<= main_x 212), 162611#(<= main_x 213), 162608#(<= main_x 210), 162609#(<= main_x 211), 162614#(<= main_x 216), 162615#(<= main_x 217), 162612#(<= main_x 214), 162613#(<= main_x 215), 162618#(<= main_x 220), 162619#(<= main_x 221), 162616#(<= main_x 218), 162617#(<= main_x 219), 162622#(<= main_x 224), 162623#(<= main_x 225), 162620#(<= main_x 222), 162621#(<= main_x 223), 162626#(<= main_x 228), 162627#(<= main_x 229), 162624#(<= main_x 226), 162625#(<= main_x 227), 162630#(<= main_x 232), 162631#(<= main_x 233), 162628#(<= main_x 230), 162629#(<= main_x 231), 162634#(<= main_x 236), 162635#(<= main_x 237), 162632#(<= main_x 234), 162633#(<= main_x 235), 162638#(<= main_x 240), 162639#(<= main_x 241), 162636#(<= main_x 238), 162637#(<= main_x 239), 162642#(<= main_x 244), 162643#(<= main_x 245), 162640#(<= main_x 242), 162641#(<= main_x 243), 162646#(<= main_x 248), 162647#(<= main_x 249), 162644#(<= main_x 246), 162645#(<= main_x 247), 162648#(<= main_x 250)] [2018-07-23 13:59:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 31375 backedges. 0 proven. 31375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:59:08,666 INFO L450 AbstractCegarLoop]: Interpolant automaton has 253 states [2018-07-23 13:59:08,668 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 253 interpolants. [2018-07-23 13:59:08,669 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31878, Invalid=31878, Unknown=0, NotChecked=0, Total=63756 [2018-07-23 13:59:08,669 INFO L87 Difference]: Start difference. First operand 254 states and 254 transitions. Second operand 253 states. [2018-07-23 13:59:10,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:59:10,376 INFO L93 Difference]: Finished difference Result 257 states and 257 transitions. [2018-07-23 13:59:10,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 253 states. [2018-07-23 13:59:10,376 INFO L78 Accepts]: Start accepts. Automaton has 253 states. Word has length 253 [2018-07-23 13:59:10,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:59:10,377 INFO L225 Difference]: With dead ends: 257 [2018-07-23 13:59:10,377 INFO L226 Difference]: Without dead ends: 255 [2018-07-23 13:59:10,378 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=31878, Invalid=31878, Unknown=0, NotChecked=0, Total=63756 [2018-07-23 13:59:10,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-07-23 13:59:10,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2018-07-23 13:59:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-07-23 13:59:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 255 transitions. [2018-07-23 13:59:10,380 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 255 transitions. Word has length 253 [2018-07-23 13:59:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:59:10,381 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 255 transitions. [2018-07-23 13:59:10,381 INFO L472 AbstractCegarLoop]: Interpolant automaton has 253 states. [2018-07-23 13:59:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 255 transitions. [2018-07-23 13:59:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-07-23 13:59:10,381 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:59:10,382 INFO L357 BasicCegarLoop]: trace histogram [251, 1, 1, 1] [2018-07-23 13:59:10,382 INFO L414 AbstractCegarLoop]: === Iteration 252 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:59:10,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2096491974, now seen corresponding path program 251 times [2018-07-23 13:59:10,382 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-07-23 13:59:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:59:10,957 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:919) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:262) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:204) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:210) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:410) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:425) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-23 13:59:10,961 INFO L168 Benchmark]: Toolchain (without parser) took 264426.96 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -395.0 MB). Peak memory consumption was 961.9 MB. Max. memory is 7.1 GB. [2018-07-23 13:59:10,962 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:59:10,962 INFO L168 Benchmark]: Boogie Preprocessor took 53.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:59:10,963 INFO L168 Benchmark]: RCFGBuilder took 233.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 13:59:10,963 INFO L168 Benchmark]: TraceAbstraction took 264136.02 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -405.5 MB). Peak memory consumption was 951.3 MB. Max. memory is 7.1 GB. [2018-07-23 13:59:10,965 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 233.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 264136.02 ms. Allocated memory was 1.5 GB in the beginning and 2.9 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -405.5 MB). Peak memory consumption was 951.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Octopussy.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-59-10-973.csv Completed graceful shutdown