java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/real-life/threadpooling_out3.mover.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:36:11,205 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:36:11,208 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:36:11,229 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:36:11,229 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:36:11,231 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:36:11,232 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:36:11,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:36:11,237 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:36:11,238 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:36:11,239 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 08:36:11,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 08:36:11,242 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 08:36:11,243 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 08:36:11,246 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 08:36:11,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 08:36:11,254 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 08:36:11,258 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 08:36:11,262 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 08:36:11,264 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 08:36:11,266 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 08:36:11,267 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 08:36:11,269 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 08:36:11,269 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:36:11,270 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:36:11,271 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:36:11,272 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:36:11,273 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:36:11,274 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:36:11,276 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:36:11,276 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:36:11,277 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 08:36:11,277 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 08:36:11,278 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 08:36:11,279 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 08:36:11,281 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 08:36:11,281 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:36:11,306 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:36:11,306 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:36:11,311 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:36:11,311 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:36:11,312 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:36:11,312 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:36:11,312 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:36:11,312 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:36:11,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:36:11,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:36:11,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:36:11,410 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:36:11,410 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:36:11,411 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out3.mover.bpl [2018-07-25 08:36:11,412 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out3.mover.bpl' [2018-07-25 08:36:11,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:36:11,514 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:36:11,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:36:11,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:36:11,515 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:36:11,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,572 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 08:36:11,573 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 08:36:11,573 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 08:36:11,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:36:11,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:36:11,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:36:11,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:36:11,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:36:11,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:36:11,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:36:11,633 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:36:11,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/1) ... [2018-07-25 08:36:11,719 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-07-25 08:36:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-07-25 08:36:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-07-25 08:36:12,284 INFO L270 CfgBuilder]: Using library mode [2018-07-25 08:36:12,284 INFO L202 PluginConnector]: Adding new model threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:36:12 BoogieIcfgContainer [2018-07-25 08:36:12,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:36:12,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:36:12,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:36:12,289 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:36:12,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:11" (1/2) ... [2018-07-25 08:36:12,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53232cd3 and model type threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:36:12, skipping insertion in model container [2018-07-25 08:36:12,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:36:12" (2/2) ... [2018-07-25 08:36:12,294 INFO L112 eAbstractionObserver]: Analyzing ICFG threadpooling_out3.mover.bpl [2018-07-25 08:36:12,304 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:36:12,314 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2018-07-25 08:36:12,356 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:36:12,357 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:36:12,357 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:36:12,357 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:36:12,357 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:36:12,358 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:36:12,358 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:36:12,358 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:36:12,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:36:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-07-25 08:36:12,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:36:12,383 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:12,384 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:36:12,386 INFO L415 AbstractCegarLoop]: === Iteration 1 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1483933, now seen corresponding path program 1 times [2018-07-25 08:36:12,398 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:12,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:12,525 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:12,526 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:36:12,532 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 08:36:12,549 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 08:36:12,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:36:12,554 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 5 states. [2018-07-25 08:36:13,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:13,253 INFO L93 Difference]: Finished difference Result 83 states and 244 transitions. [2018-07-25 08:36:13,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 08:36:13,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-25 08:36:13,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:13,282 INFO L225 Difference]: With dead ends: 83 [2018-07-25 08:36:13,283 INFO L226 Difference]: Without dead ends: 79 [2018-07-25 08:36:13,289 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:13,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-25 08:36:13,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2018-07-25 08:36:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-25 08:36:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 188 transitions. [2018-07-25 08:36:13,366 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 188 transitions. Word has length 4 [2018-07-25 08:36:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:13,367 INFO L472 AbstractCegarLoop]: Abstraction has 67 states and 188 transitions. [2018-07-25 08:36:13,367 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 08:36:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 188 transitions. [2018-07-25 08:36:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:36:13,368 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:13,369 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:36:13,370 INFO L415 AbstractCegarLoop]: === Iteration 2 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:13,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1486926, now seen corresponding path program 1 times [2018-07-25 08:36:13,371 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:13,424 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:13,424 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:36:13,426 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 08:36:13,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 08:36:13,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:36:13,427 INFO L87 Difference]: Start difference. First operand 67 states and 188 transitions. Second operand 5 states. [2018-07-25 08:36:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:13,779 INFO L93 Difference]: Finished difference Result 141 states and 439 transitions. [2018-07-25 08:36:13,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 08:36:13,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-25 08:36:13,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:13,783 INFO L225 Difference]: With dead ends: 141 [2018-07-25 08:36:13,784 INFO L226 Difference]: Without dead ends: 137 [2018-07-25 08:36:13,785 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:36:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-07-25 08:36:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 95. [2018-07-25 08:36:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-07-25 08:36:13,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 316 transitions. [2018-07-25 08:36:13,813 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 316 transitions. Word has length 4 [2018-07-25 08:36:13,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:13,814 INFO L472 AbstractCegarLoop]: Abstraction has 95 states and 316 transitions. [2018-07-25 08:36:13,814 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 08:36:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 316 transitions. [2018-07-25 08:36:13,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:36:13,815 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:13,815 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:36:13,816 INFO L415 AbstractCegarLoop]: === Iteration 3 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:13,817 INFO L82 PathProgramCache]: Analyzing trace with hash 951145, now seen corresponding path program 1 times [2018-07-25 08:36:13,817 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:13,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:13,841 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:13,841 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:36:13,842 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 08:36:13,842 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 08:36:13,842 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:36:13,843 INFO L87 Difference]: Start difference. First operand 95 states and 316 transitions. Second operand 5 states. [2018-07-25 08:36:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:14,167 INFO L93 Difference]: Finished difference Result 161 states and 531 transitions. [2018-07-25 08:36:14,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 08:36:14,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-25 08:36:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:14,173 INFO L225 Difference]: With dead ends: 161 [2018-07-25 08:36:14,175 INFO L226 Difference]: Without dead ends: 157 [2018-07-25 08:36:14,176 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:36:14,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-07-25 08:36:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 115. [2018-07-25 08:36:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-07-25 08:36:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 408 transitions. [2018-07-25 08:36:14,217 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 408 transitions. Word has length 4 [2018-07-25 08:36:14,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:14,218 INFO L472 AbstractCegarLoop]: Abstraction has 115 states and 408 transitions. [2018-07-25 08:36:14,219 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 08:36:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 408 transitions. [2018-07-25 08:36:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:14,221 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:14,221 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:14,223 INFO L415 AbstractCegarLoop]: === Iteration 4 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:14,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1424687860, now seen corresponding path program 1 times [2018-07-25 08:36:14,224 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:14,254 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:14,254 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:14,256 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:14,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:14,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:14,258 INFO L87 Difference]: Start difference. First operand 115 states and 408 transitions. Second operand 7 states. [2018-07-25 08:36:15,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:15,096 INFO L93 Difference]: Finished difference Result 429 states and 1559 transitions. [2018-07-25 08:36:15,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:15,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:15,106 INFO L225 Difference]: With dead ends: 429 [2018-07-25 08:36:15,107 INFO L226 Difference]: Without dead ends: 423 [2018-07-25 08:36:15,108 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:15,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2018-07-25 08:36:15,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 197. [2018-07-25 08:36:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-07-25 08:36:15,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 815 transitions. [2018-07-25 08:36:15,191 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 815 transitions. Word has length 6 [2018-07-25 08:36:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:15,195 INFO L472 AbstractCegarLoop]: Abstraction has 197 states and 815 transitions. [2018-07-25 08:36:15,196 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:15,196 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 815 transitions. [2018-07-25 08:36:15,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:15,201 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:15,201 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:15,202 INFO L415 AbstractCegarLoop]: === Iteration 5 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:15,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1424687863, now seen corresponding path program 1 times [2018-07-25 08:36:15,205 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:15,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:15,242 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:15,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:15,243 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:15,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:15,244 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:15,244 INFO L87 Difference]: Start difference. First operand 197 states and 815 transitions. Second operand 7 states. [2018-07-25 08:36:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:16,205 INFO L93 Difference]: Finished difference Result 469 states and 1652 transitions. [2018-07-25 08:36:16,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:16,205 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:16,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:16,211 INFO L225 Difference]: With dead ends: 469 [2018-07-25 08:36:16,211 INFO L226 Difference]: Without dead ends: 463 [2018-07-25 08:36:16,212 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:36:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2018-07-25 08:36:16,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 221. [2018-07-25 08:36:16,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-07-25 08:36:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 931 transitions. [2018-07-25 08:36:16,275 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 931 transitions. Word has length 6 [2018-07-25 08:36:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:16,276 INFO L472 AbstractCegarLoop]: Abstraction has 221 states and 931 transitions. [2018-07-25 08:36:16,276 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 931 transitions. [2018-07-25 08:36:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:16,278 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:16,278 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:16,279 INFO L415 AbstractCegarLoop]: === Iteration 6 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:16,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1424690216, now seen corresponding path program 1 times [2018-07-25 08:36:16,280 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:16,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:16,307 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:16,307 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:16,307 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:16,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:16,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:16,308 INFO L87 Difference]: Start difference. First operand 221 states and 931 transitions. Second operand 7 states. [2018-07-25 08:36:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:17,205 INFO L93 Difference]: Finished difference Result 425 states and 1563 transitions. [2018-07-25 08:36:17,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:17,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:17,217 INFO L225 Difference]: With dead ends: 425 [2018-07-25 08:36:17,218 INFO L226 Difference]: Without dead ends: 419 [2018-07-25 08:36:17,219 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2018-07-25 08:36:17,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 235. [2018-07-25 08:36:17,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-07-25 08:36:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 1000 transitions. [2018-07-25 08:36:17,291 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 1000 transitions. Word has length 6 [2018-07-25 08:36:17,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:17,291 INFO L472 AbstractCegarLoop]: Abstraction has 235 states and 1000 transitions. [2018-07-25 08:36:17,292 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:17,292 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 1000 transitions. [2018-07-25 08:36:17,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:17,293 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:17,293 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:17,294 INFO L415 AbstractCegarLoop]: === Iteration 7 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:17,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1424690219, now seen corresponding path program 1 times [2018-07-25 08:36:17,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:17,323 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:17,323 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:17,324 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:17,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:17,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:17,325 INFO L87 Difference]: Start difference. First operand 235 states and 1000 transitions. Second operand 7 states. [2018-07-25 08:36:18,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:18,091 INFO L93 Difference]: Finished difference Result 461 states and 1684 transitions. [2018-07-25 08:36:18,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:18,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:18,099 INFO L225 Difference]: With dead ends: 461 [2018-07-25 08:36:18,099 INFO L226 Difference]: Without dead ends: 455 [2018-07-25 08:36:18,100 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:18,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-07-25 08:36:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 233. [2018-07-25 08:36:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-07-25 08:36:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 991 transitions. [2018-07-25 08:36:18,178 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 991 transitions. Word has length 6 [2018-07-25 08:36:18,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:18,182 INFO L472 AbstractCegarLoop]: Abstraction has 233 states and 991 transitions. [2018-07-25 08:36:18,182 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:18,182 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 991 transitions. [2018-07-25 08:36:18,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:18,183 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:18,183 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:18,185 INFO L415 AbstractCegarLoop]: === Iteration 8 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:18,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1425662275, now seen corresponding path program 1 times [2018-07-25 08:36:18,185 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:18,210 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:18,210 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:18,210 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:18,211 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:18,211 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:18,211 INFO L87 Difference]: Start difference. First operand 233 states and 991 transitions. Second operand 7 states. [2018-07-25 08:36:19,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:19,031 INFO L93 Difference]: Finished difference Result 532 states and 2077 transitions. [2018-07-25 08:36:19,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-25 08:36:19,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:19,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:19,038 INFO L225 Difference]: With dead ends: 532 [2018-07-25 08:36:19,038 INFO L226 Difference]: Without dead ends: 526 [2018-07-25 08:36:19,040 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:36:19,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2018-07-25 08:36:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 318. [2018-07-25 08:36:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-07-25 08:36:19,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 1405 transitions. [2018-07-25 08:36:19,139 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 1405 transitions. Word has length 6 [2018-07-25 08:36:19,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:19,142 INFO L472 AbstractCegarLoop]: Abstraction has 318 states and 1405 transitions. [2018-07-25 08:36:19,142 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:19,142 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 1405 transitions. [2018-07-25 08:36:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:19,144 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:19,144 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:19,145 INFO L415 AbstractCegarLoop]: === Iteration 9 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:19,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1425662278, now seen corresponding path program 1 times [2018-07-25 08:36:19,146 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:19,174 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:19,174 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:19,174 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:19,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:19,175 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:19,175 INFO L87 Difference]: Start difference. First operand 318 states and 1405 transitions. Second operand 7 states. [2018-07-25 08:36:19,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:19,847 INFO L93 Difference]: Finished difference Result 795 states and 3375 transitions. [2018-07-25 08:36:19,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:19,848 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:19,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:19,854 INFO L225 Difference]: With dead ends: 795 [2018-07-25 08:36:19,855 INFO L226 Difference]: Without dead ends: 478 [2018-07-25 08:36:19,859 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2018-07-25 08:36:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 344. [2018-07-25 08:36:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-07-25 08:36:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 1488 transitions. [2018-07-25 08:36:19,981 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 1488 transitions. Word has length 6 [2018-07-25 08:36:19,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:19,981 INFO L472 AbstractCegarLoop]: Abstraction has 344 states and 1488 transitions. [2018-07-25 08:36:19,981 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:19,981 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 1488 transitions. [2018-07-25 08:36:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:19,984 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:19,984 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:19,989 INFO L415 AbstractCegarLoop]: === Iteration 10 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:19,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1426082271, now seen corresponding path program 1 times [2018-07-25 08:36:19,990 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:20,022 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:20,023 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:20,023 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:20,023 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:20,024 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:20,024 INFO L87 Difference]: Start difference. First operand 344 states and 1488 transitions. Second operand 7 states. [2018-07-25 08:36:20,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:20,793 INFO L93 Difference]: Finished difference Result 559 states and 2201 transitions. [2018-07-25 08:36:20,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:36:20,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:20,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:20,800 INFO L225 Difference]: With dead ends: 559 [2018-07-25 08:36:20,800 INFO L226 Difference]: Without dead ends: 553 [2018-07-25 08:36:20,802 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:20,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2018-07-25 08:36:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 350. [2018-07-25 08:36:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-07-25 08:36:20,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 1507 transitions. [2018-07-25 08:36:20,910 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 1507 transitions. Word has length 6 [2018-07-25 08:36:20,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:20,910 INFO L472 AbstractCegarLoop]: Abstraction has 350 states and 1507 transitions. [2018-07-25 08:36:20,910 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:20,910 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 1507 transitions. [2018-07-25 08:36:20,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:20,911 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:20,911 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:20,912 INFO L415 AbstractCegarLoop]: === Iteration 11 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:20,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1426082274, now seen corresponding path program 1 times [2018-07-25 08:36:20,913 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:20,938 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:20,939 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:20,939 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:20,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:20,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:20,940 INFO L87 Difference]: Start difference. First operand 350 states and 1507 transitions. Second operand 7 states. [2018-07-25 08:36:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:21,771 INFO L93 Difference]: Finished difference Result 589 states and 2338 transitions. [2018-07-25 08:36:21,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:21,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:21,779 INFO L225 Difference]: With dead ends: 589 [2018-07-25 08:36:21,779 INFO L226 Difference]: Without dead ends: 583 [2018-07-25 08:36:21,780 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:36:21,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2018-07-25 08:36:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 356. [2018-07-25 08:36:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-25 08:36:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 1534 transitions. [2018-07-25 08:36:21,927 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 1534 transitions. Word has length 6 [2018-07-25 08:36:21,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:21,928 INFO L472 AbstractCegarLoop]: Abstraction has 356 states and 1534 transitions. [2018-07-25 08:36:21,928 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:21,928 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 1534 transitions. [2018-07-25 08:36:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:21,929 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:21,929 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:21,930 INFO L415 AbstractCegarLoop]: === Iteration 12 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:21,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1411063228, now seen corresponding path program 1 times [2018-07-25 08:36:21,930 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:21,963 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:21,964 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:21,964 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:21,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:21,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:21,965 INFO L87 Difference]: Start difference. First operand 356 states and 1534 transitions. Second operand 7 states. [2018-07-25 08:36:22,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:22,676 INFO L93 Difference]: Finished difference Result 614 states and 2391 transitions. [2018-07-25 08:36:22,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:22,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:22,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:22,683 INFO L225 Difference]: With dead ends: 614 [2018-07-25 08:36:22,683 INFO L226 Difference]: Without dead ends: 608 [2018-07-25 08:36:22,684 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2018-07-25 08:36:22,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 381. [2018-07-25 08:36:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-07-25 08:36:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 1666 transitions. [2018-07-25 08:36:22,829 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 1666 transitions. Word has length 6 [2018-07-25 08:36:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:22,829 INFO L472 AbstractCegarLoop]: Abstraction has 381 states and 1666 transitions. [2018-07-25 08:36:22,830 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 1666 transitions. [2018-07-25 08:36:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:22,831 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:22,831 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:22,832 INFO L415 AbstractCegarLoop]: === Iteration 13 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:22,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1411063231, now seen corresponding path program 1 times [2018-07-25 08:36:22,833 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:22,854 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:22,854 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:22,855 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:22,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:22,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:22,859 INFO L87 Difference]: Start difference. First operand 381 states and 1666 transitions. Second operand 7 states. [2018-07-25 08:36:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:23,481 INFO L93 Difference]: Finished difference Result 872 states and 3679 transitions. [2018-07-25 08:36:23,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:23,481 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:23,486 INFO L225 Difference]: With dead ends: 872 [2018-07-25 08:36:23,486 INFO L226 Difference]: Without dead ends: 492 [2018-07-25 08:36:23,488 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2018-07-25 08:36:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 406. [2018-07-25 08:36:23,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2018-07-25 08:36:23,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1759 transitions. [2018-07-25 08:36:23,653 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 1759 transitions. Word has length 6 [2018-07-25 08:36:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:23,654 INFO L472 AbstractCegarLoop]: Abstraction has 406 states and 1759 transitions. [2018-07-25 08:36:23,654 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 1759 transitions. [2018-07-25 08:36:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:23,655 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:23,655 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:23,656 INFO L415 AbstractCegarLoop]: === Iteration 14 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:23,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1411050270, now seen corresponding path program 1 times [2018-07-25 08:36:23,657 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:23,679 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:23,679 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:23,679 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:23,680 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:23,680 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:23,680 INFO L87 Difference]: Start difference. First operand 406 states and 1759 transitions. Second operand 7 states. [2018-07-25 08:36:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:24,546 INFO L93 Difference]: Finished difference Result 642 states and 2484 transitions. [2018-07-25 08:36:24,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:24,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:24,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:24,552 INFO L225 Difference]: With dead ends: 642 [2018-07-25 08:36:24,552 INFO L226 Difference]: Without dead ends: 636 [2018-07-25 08:36:24,553 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:36:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2018-07-25 08:36:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 394. [2018-07-25 08:36:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2018-07-25 08:36:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1695 transitions. [2018-07-25 08:36:24,717 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1695 transitions. Word has length 6 [2018-07-25 08:36:24,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:24,717 INFO L472 AbstractCegarLoop]: Abstraction has 394 states and 1695 transitions. [2018-07-25 08:36:24,718 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:24,718 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1695 transitions. [2018-07-25 08:36:24,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:24,719 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:24,719 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:24,719 INFO L415 AbstractCegarLoop]: === Iteration 15 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1411050273, now seen corresponding path program 1 times [2018-07-25 08:36:24,720 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:24,739 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:24,739 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:24,739 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:24,740 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:24,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:24,740 INFO L87 Difference]: Start difference. First operand 394 states and 1695 transitions. Second operand 7 states. [2018-07-25 08:36:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:25,360 INFO L93 Difference]: Finished difference Result 530 states and 2122 transitions. [2018-07-25 08:36:25,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:25,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:25,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:25,366 INFO L225 Difference]: With dead ends: 530 [2018-07-25 08:36:25,368 INFO L226 Difference]: Without dead ends: 524 [2018-07-25 08:36:25,369 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:25,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-07-25 08:36:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 394. [2018-07-25 08:36:25,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2018-07-25 08:36:25,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1695 transitions. [2018-07-25 08:36:25,549 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1695 transitions. Word has length 6 [2018-07-25 08:36:25,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:25,550 INFO L472 AbstractCegarLoop]: Abstraction has 394 states and 1695 transitions. [2018-07-25 08:36:25,550 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1695 transitions. [2018-07-25 08:36:25,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:25,551 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:25,551 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:25,552 INFO L415 AbstractCegarLoop]: === Iteration 16 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:25,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1418574259, now seen corresponding path program 1 times [2018-07-25 08:36:25,552 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:25,585 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:25,585 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:25,586 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:25,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:25,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:25,591 INFO L87 Difference]: Start difference. First operand 394 states and 1695 transitions. Second operand 7 states. [2018-07-25 08:36:26,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:26,299 INFO L93 Difference]: Finished difference Result 811 states and 3241 transitions. [2018-07-25 08:36:26,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:26,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:26,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:26,307 INFO L225 Difference]: With dead ends: 811 [2018-07-25 08:36:26,307 INFO L226 Difference]: Without dead ends: 805 [2018-07-25 08:36:26,308 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:26,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2018-07-25 08:36:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 455. [2018-07-25 08:36:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2018-07-25 08:36:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 2000 transitions. [2018-07-25 08:36:26,489 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 2000 transitions. Word has length 6 [2018-07-25 08:36:26,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:26,490 INFO L472 AbstractCegarLoop]: Abstraction has 455 states and 2000 transitions. [2018-07-25 08:36:26,490 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:26,490 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 2000 transitions. [2018-07-25 08:36:26,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:26,492 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:26,492 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:26,493 INFO L415 AbstractCegarLoop]: === Iteration 17 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:26,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1418574132, now seen corresponding path program 1 times [2018-07-25 08:36:26,493 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:26,535 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:26,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:26,536 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:26,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:26,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:26,539 INFO L87 Difference]: Start difference. First operand 455 states and 2000 transitions. Second operand 7 states. [2018-07-25 08:36:27,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:27,238 INFO L93 Difference]: Finished difference Result 829 states and 3301 transitions. [2018-07-25 08:36:27,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:27,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:27,247 INFO L225 Difference]: With dead ends: 829 [2018-07-25 08:36:27,247 INFO L226 Difference]: Without dead ends: 823 [2018-07-25 08:36:27,248 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:36:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2018-07-25 08:36:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 480. [2018-07-25 08:36:27,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2018-07-25 08:36:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 2125 transitions. [2018-07-25 08:36:27,448 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 2125 transitions. Word has length 6 [2018-07-25 08:36:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:27,449 INFO L472 AbstractCegarLoop]: Abstraction has 480 states and 2125 transitions. [2018-07-25 08:36:27,449 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 2125 transitions. [2018-07-25 08:36:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:27,450 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:27,450 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:27,451 INFO L415 AbstractCegarLoop]: === Iteration 18 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:27,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1418562851, now seen corresponding path program 1 times [2018-07-25 08:36:27,451 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:27,479 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:27,479 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:27,479 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:27,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:27,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:27,480 INFO L87 Difference]: Start difference. First operand 480 states and 2125 transitions. Second operand 7 states. [2018-07-25 08:36:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:28,310 INFO L93 Difference]: Finished difference Result 858 states and 3471 transitions. [2018-07-25 08:36:28,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:28,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:28,320 INFO L225 Difference]: With dead ends: 858 [2018-07-25 08:36:28,321 INFO L226 Difference]: Without dead ends: 852 [2018-07-25 08:36:28,322 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2018-07-25 08:36:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 502. [2018-07-25 08:36:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-07-25 08:36:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 2231 transitions. [2018-07-25 08:36:28,589 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 2231 transitions. Word has length 6 [2018-07-25 08:36:28,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:28,590 INFO L472 AbstractCegarLoop]: Abstraction has 502 states and 2231 transitions. [2018-07-25 08:36:28,590 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:28,590 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 2231 transitions. [2018-07-25 08:36:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:28,591 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:28,592 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:28,592 INFO L415 AbstractCegarLoop]: === Iteration 19 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:28,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1418562724, now seen corresponding path program 1 times [2018-07-25 08:36:28,593 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:28,614 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:28,615 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:28,615 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:28,615 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:28,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:28,616 INFO L87 Difference]: Start difference. First operand 502 states and 2231 transitions. Second operand 7 states. [2018-07-25 08:36:29,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:29,336 INFO L93 Difference]: Finished difference Result 868 states and 3505 transitions. [2018-07-25 08:36:29,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:29,337 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:29,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:29,345 INFO L225 Difference]: With dead ends: 868 [2018-07-25 08:36:29,345 INFO L226 Difference]: Without dead ends: 862 [2018-07-25 08:36:29,346 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2018-07-25 08:36:29,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2018-07-25 08:36:29,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 516. [2018-07-25 08:36:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2018-07-25 08:36:29,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 2303 transitions. [2018-07-25 08:36:29,568 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 2303 transitions. Word has length 6 [2018-07-25 08:36:29,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:29,568 INFO L472 AbstractCegarLoop]: Abstraction has 516 states and 2303 transitions. [2018-07-25 08:36:29,568 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:29,568 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 2303 transitions. [2018-07-25 08:36:29,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:29,569 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:29,570 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:29,570 INFO L415 AbstractCegarLoop]: === Iteration 20 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:29,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1428797377, now seen corresponding path program 1 times [2018-07-25 08:36:29,571 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:29,588 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:29,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:29,589 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:29,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:29,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:29,590 INFO L87 Difference]: Start difference. First operand 516 states and 2303 transitions. Second operand 7 states. [2018-07-25 08:36:30,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:30,323 INFO L93 Difference]: Finished difference Result 907 states and 3733 transitions. [2018-07-25 08:36:30,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:36:30,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:30,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:30,332 INFO L225 Difference]: With dead ends: 907 [2018-07-25 08:36:30,332 INFO L226 Difference]: Without dead ends: 901 [2018-07-25 08:36:30,333 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:36:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2018-07-25 08:36:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 520. [2018-07-25 08:36:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-07-25 08:36:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 2319 transitions. [2018-07-25 08:36:30,577 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 2319 transitions. Word has length 6 [2018-07-25 08:36:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:30,577 INFO L472 AbstractCegarLoop]: Abstraction has 520 states and 2319 transitions. [2018-07-25 08:36:30,577 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:30,578 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 2319 transitions. [2018-07-25 08:36:30,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:30,578 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:30,579 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:30,579 INFO L415 AbstractCegarLoop]: === Iteration 21 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:30,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1428797250, now seen corresponding path program 1 times [2018-07-25 08:36:30,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:30,593 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:30,593 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:30,593 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:30,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:30,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:30,594 INFO L87 Difference]: Start difference. First operand 520 states and 2319 transitions. Second operand 7 states. [2018-07-25 08:36:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:31,223 INFO L93 Difference]: Finished difference Result 773 states and 3271 transitions. [2018-07-25 08:36:31,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-25 08:36:31,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:31,231 INFO L225 Difference]: With dead ends: 773 [2018-07-25 08:36:31,232 INFO L226 Difference]: Without dead ends: 767 [2018-07-25 08:36:31,233 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-07-25 08:36:31,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2018-07-25 08:36:31,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 593. [2018-07-25 08:36:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-07-25 08:36:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 2685 transitions. [2018-07-25 08:36:31,531 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 2685 transitions. Word has length 6 [2018-07-25 08:36:31,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:31,531 INFO L472 AbstractCegarLoop]: Abstraction has 593 states and 2685 transitions. [2018-07-25 08:36:31,531 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:31,531 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 2685 transitions. [2018-07-25 08:36:31,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:31,532 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:31,532 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:31,533 INFO L415 AbstractCegarLoop]: === Iteration 22 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:31,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1428952251, now seen corresponding path program 1 times [2018-07-25 08:36:31,533 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:31,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:31,555 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:31,555 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:31,556 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:31,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:31,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:31,557 INFO L87 Difference]: Start difference. First operand 593 states and 2685 transitions. Second operand 7 states. [2018-07-25 08:36:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:32,427 INFO L93 Difference]: Finished difference Result 1183 states and 5111 transitions. [2018-07-25 08:36:32,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:32,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:32,439 INFO L225 Difference]: With dead ends: 1183 [2018-07-25 08:36:32,440 INFO L226 Difference]: Without dead ends: 1177 [2018-07-25 08:36:32,442 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2018-07-25 08:36:32,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 745. [2018-07-25 08:36:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2018-07-25 08:36:32,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 3444 transitions. [2018-07-25 08:36:32,746 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 3444 transitions. Word has length 6 [2018-07-25 08:36:32,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:32,746 INFO L472 AbstractCegarLoop]: Abstraction has 745 states and 3444 transitions. [2018-07-25 08:36:32,746 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:32,746 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 3444 transitions. [2018-07-25 08:36:32,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:32,747 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:32,747 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:32,748 INFO L415 AbstractCegarLoop]: === Iteration 23 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:32,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1428952254, now seen corresponding path program 1 times [2018-07-25 08:36:32,748 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:32,760 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:32,760 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:32,760 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:32,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:32,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:32,761 INFO L87 Difference]: Start difference. First operand 745 states and 3444 transitions. Second operand 7 states. [2018-07-25 08:36:33,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:33,688 INFO L93 Difference]: Finished difference Result 1125 states and 4823 transitions. [2018-07-25 08:36:33,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:36:33,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:33,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:33,698 INFO L225 Difference]: With dead ends: 1125 [2018-07-25 08:36:33,698 INFO L226 Difference]: Without dead ends: 1119 [2018-07-25 08:36:33,699 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:36:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2018-07-25 08:36:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 749. [2018-07-25 08:36:34,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2018-07-25 08:36:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 3456 transitions. [2018-07-25 08:36:34,083 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 3456 transitions. Word has length 6 [2018-07-25 08:36:34,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:34,083 INFO L472 AbstractCegarLoop]: Abstraction has 749 states and 3456 transitions. [2018-07-25 08:36:34,083 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:34,084 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 3456 transitions. [2018-07-25 08:36:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:34,087 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:34,087 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 08:36:34,088 INFO L415 AbstractCegarLoop]: === Iteration 24 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:34,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1428955365, now seen corresponding path program 1 times [2018-07-25 08:36:34,089 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:34,100 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:34,100 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 08:36:34,102 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:36:34,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:36:34,103 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:36:34,103 INFO L87 Difference]: Start difference. First operand 749 states and 3456 transitions. Second operand 4 states. [2018-07-25 08:36:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:34,477 INFO L93 Difference]: Finished difference Result 1227 states and 5516 transitions. [2018-07-25 08:36:34,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:36:34,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 08:36:34,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:34,493 INFO L225 Difference]: With dead ends: 1227 [2018-07-25 08:36:34,493 INFO L226 Difference]: Without dead ends: 722 [2018-07-25 08:36:34,497 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:36:34,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2018-07-25 08:36:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 614. [2018-07-25 08:36:34,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2018-07-25 08:36:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 2719 transitions. [2018-07-25 08:36:34,790 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 2719 transitions. Word has length 6 [2018-07-25 08:36:34,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:34,790 INFO L472 AbstractCegarLoop]: Abstraction has 614 states and 2719 transitions. [2018-07-25 08:36:34,791 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:36:34,791 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 2719 transitions. [2018-07-25 08:36:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:34,792 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:34,792 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:34,793 INFO L415 AbstractCegarLoop]: === Iteration 25 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1418670078, now seen corresponding path program 1 times [2018-07-25 08:36:34,793 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:34,806 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:34,806 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:34,806 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:34,806 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:34,807 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:34,807 INFO L87 Difference]: Start difference. First operand 614 states and 2719 transitions. Second operand 7 states. [2018-07-25 08:36:35,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:35,608 INFO L93 Difference]: Finished difference Result 1007 states and 4285 transitions. [2018-07-25 08:36:35,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-25 08:36:35,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:35,615 INFO L225 Difference]: With dead ends: 1007 [2018-07-25 08:36:35,615 INFO L226 Difference]: Without dead ends: 1001 [2018-07-25 08:36:35,616 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-07-25 08:36:35,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2018-07-25 08:36:35,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 649. [2018-07-25 08:36:35,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2018-07-25 08:36:35,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 2895 transitions. [2018-07-25 08:36:35,962 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 2895 transitions. Word has length 6 [2018-07-25 08:36:35,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:35,962 INFO L472 AbstractCegarLoop]: Abstraction has 649 states and 2895 transitions. [2018-07-25 08:36:35,962 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:35,962 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 2895 transitions. [2018-07-25 08:36:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:35,963 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:35,963 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:35,964 INFO L415 AbstractCegarLoop]: === Iteration 26 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:35,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1418670081, now seen corresponding path program 1 times [2018-07-25 08:36:35,964 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:35,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:35,990 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:35,990 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:35,990 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:35,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:35,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:35,991 INFO L87 Difference]: Start difference. First operand 649 states and 2895 transitions. Second operand 7 states. [2018-07-25 08:36:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:36,796 INFO L93 Difference]: Finished difference Result 1057 states and 4428 transitions. [2018-07-25 08:36:36,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:36,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:36,803 INFO L225 Difference]: With dead ends: 1057 [2018-07-25 08:36:36,803 INFO L226 Difference]: Without dead ends: 1051 [2018-07-25 08:36:36,804 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2018-07-25 08:36:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 643. [2018-07-25 08:36:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2018-07-25 08:36:37,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 2867 transitions. [2018-07-25 08:36:37,089 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 2867 transitions. Word has length 6 [2018-07-25 08:36:37,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:37,089 INFO L472 AbstractCegarLoop]: Abstraction has 643 states and 2867 transitions. [2018-07-25 08:36:37,089 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 2867 transitions. [2018-07-25 08:36:37,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:37,090 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:37,091 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:37,091 INFO L415 AbstractCegarLoop]: === Iteration 27 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:37,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1418672434, now seen corresponding path program 1 times [2018-07-25 08:36:37,091 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:37,101 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:37,101 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:37,102 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:37,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:37,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:37,102 INFO L87 Difference]: Start difference. First operand 643 states and 2867 transitions. Second operand 7 states. [2018-07-25 08:36:37,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:37,869 INFO L93 Difference]: Finished difference Result 1019 states and 4290 transitions. [2018-07-25 08:36:37,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:36:37,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:37,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:37,874 INFO L225 Difference]: With dead ends: 1019 [2018-07-25 08:36:37,874 INFO L226 Difference]: Without dead ends: 1013 [2018-07-25 08:36:37,875 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:36:37,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2018-07-25 08:36:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 667. [2018-07-25 08:36:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2018-07-25 08:36:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 2969 transitions. [2018-07-25 08:36:38,166 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 2969 transitions. Word has length 6 [2018-07-25 08:36:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:38,166 INFO L472 AbstractCegarLoop]: Abstraction has 667 states and 2969 transitions. [2018-07-25 08:36:38,167 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 2969 transitions. [2018-07-25 08:36:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:38,167 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:38,167 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:38,168 INFO L415 AbstractCegarLoop]: === Iteration 28 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:38,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1418672437, now seen corresponding path program 1 times [2018-07-25 08:36:38,168 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:38,180 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:38,180 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:38,180 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:38,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:38,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:38,181 INFO L87 Difference]: Start difference. First operand 667 states and 2969 transitions. Second operand 7 states. [2018-07-25 08:36:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:39,231 INFO L93 Difference]: Finished difference Result 1100 states and 4588 transitions. [2018-07-25 08:36:39,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:39,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:39,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:39,236 INFO L225 Difference]: With dead ends: 1100 [2018-07-25 08:36:39,236 INFO L226 Difference]: Without dead ends: 1098 [2018-07-25 08:36:39,237 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:39,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2018-07-25 08:36:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 636. [2018-07-25 08:36:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2018-07-25 08:36:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 2815 transitions. [2018-07-25 08:36:39,540 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 2815 transitions. Word has length 6 [2018-07-25 08:36:39,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:39,540 INFO L472 AbstractCegarLoop]: Abstraction has 636 states and 2815 transitions. [2018-07-25 08:36:39,540 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 2815 transitions. [2018-07-25 08:36:39,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:39,541 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:39,541 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:39,541 INFO L415 AbstractCegarLoop]: === Iteration 29 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:39,542 INFO L82 PathProgramCache]: Analyzing trace with hash 914033883, now seen corresponding path program 1 times [2018-07-25 08:36:39,542 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:39,573 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:39,573 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:39,573 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:39,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:39,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:39,574 INFO L87 Difference]: Start difference. First operand 636 states and 2815 transitions. Second operand 7 states. [2018-07-25 08:36:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:40,793 INFO L93 Difference]: Finished difference Result 1140 states and 4821 transitions. [2018-07-25 08:36:40,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:40,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:40,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:40,800 INFO L225 Difference]: With dead ends: 1140 [2018-07-25 08:36:40,801 INFO L226 Difference]: Without dead ends: 1138 [2018-07-25 08:36:40,802 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2018-07-25 08:36:41,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 705. [2018-07-25 08:36:41,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2018-07-25 08:36:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 3157 transitions. [2018-07-25 08:36:41,312 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 3157 transitions. Word has length 6 [2018-07-25 08:36:41,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:41,312 INFO L472 AbstractCegarLoop]: Abstraction has 705 states and 3157 transitions. [2018-07-25 08:36:41,312 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 3157 transitions. [2018-07-25 08:36:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:41,313 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:41,313 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:41,314 INFO L415 AbstractCegarLoop]: === Iteration 30 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:41,314 INFO L82 PathProgramCache]: Analyzing trace with hash 914033756, now seen corresponding path program 1 times [2018-07-25 08:36:41,314 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:41,350 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:41,350 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:41,351 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:41,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:41,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:41,351 INFO L87 Difference]: Start difference. First operand 705 states and 3157 transitions. Second operand 7 states. [2018-07-25 08:36:42,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:42,380 INFO L93 Difference]: Finished difference Result 1069 states and 4536 transitions. [2018-07-25 08:36:42,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:42,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:42,385 INFO L225 Difference]: With dead ends: 1069 [2018-07-25 08:36:42,385 INFO L226 Difference]: Without dead ends: 1063 [2018-07-25 08:36:42,386 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2018-07-25 08:36:42,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 699. [2018-07-25 08:36:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-07-25 08:36:42,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 3128 transitions. [2018-07-25 08:36:42,769 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 3128 transitions. Word has length 6 [2018-07-25 08:36:42,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:42,769 INFO L472 AbstractCegarLoop]: Abstraction has 699 states and 3128 transitions. [2018-07-25 08:36:42,769 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:42,770 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 3128 transitions. [2018-07-25 08:36:42,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:42,771 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:42,771 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:42,771 INFO L415 AbstractCegarLoop]: === Iteration 31 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:42,771 INFO L82 PathProgramCache]: Analyzing trace with hash 914022475, now seen corresponding path program 1 times [2018-07-25 08:36:42,771 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:42,797 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:42,797 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:42,798 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:42,798 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:42,798 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:42,798 INFO L87 Difference]: Start difference. First operand 699 states and 3128 transitions. Second operand 7 states. [2018-07-25 08:36:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:44,156 INFO L93 Difference]: Finished difference Result 1187 states and 5015 transitions. [2018-07-25 08:36:44,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:44,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:44,160 INFO L225 Difference]: With dead ends: 1187 [2018-07-25 08:36:44,160 INFO L226 Difference]: Without dead ends: 1181 [2018-07-25 08:36:44,161 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:36:44,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2018-07-25 08:36:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 711. [2018-07-25 08:36:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2018-07-25 08:36:44,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 3183 transitions. [2018-07-25 08:36:44,570 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 3183 transitions. Word has length 6 [2018-07-25 08:36:44,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:44,570 INFO L472 AbstractCegarLoop]: Abstraction has 711 states and 3183 transitions. [2018-07-25 08:36:44,570 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:44,570 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 3183 transitions. [2018-07-25 08:36:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:44,571 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:44,571 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:44,571 INFO L415 AbstractCegarLoop]: === Iteration 32 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:44,571 INFO L82 PathProgramCache]: Analyzing trace with hash 914022348, now seen corresponding path program 1 times [2018-07-25 08:36:44,571 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:44,587 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:44,587 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:44,587 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:44,588 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:44,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:44,588 INFO L87 Difference]: Start difference. First operand 711 states and 3183 transitions. Second operand 7 states. [2018-07-25 08:36:45,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:45,727 INFO L93 Difference]: Finished difference Result 1122 states and 4765 transitions. [2018-07-25 08:36:45,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:45,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:45,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:45,731 INFO L225 Difference]: With dead ends: 1122 [2018-07-25 08:36:45,731 INFO L226 Difference]: Without dead ends: 1116 [2018-07-25 08:36:45,732 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:45,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2018-07-25 08:36:46,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 697. [2018-07-25 08:36:46,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2018-07-25 08:36:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 3116 transitions. [2018-07-25 08:36:46,128 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 3116 transitions. Word has length 6 [2018-07-25 08:36:46,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:46,129 INFO L472 AbstractCegarLoop]: Abstraction has 697 states and 3116 transitions. [2018-07-25 08:36:46,129 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 3116 transitions. [2018-07-25 08:36:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:46,130 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:46,130 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 08:36:46,130 INFO L415 AbstractCegarLoop]: === Iteration 33 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:46,131 INFO L82 PathProgramCache]: Analyzing trace with hash 914069320, now seen corresponding path program 1 times [2018-07-25 08:36:46,131 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:46,135 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:46,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 08:36:46,136 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:36:46,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:36:46,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:36:46,136 INFO L87 Difference]: Start difference. First operand 697 states and 3116 transitions. Second operand 4 states. [2018-07-25 08:36:46,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:46,622 INFO L93 Difference]: Finished difference Result 1197 states and 5195 transitions. [2018-07-25 08:36:46,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:36:46,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 08:36:46,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:46,626 INFO L225 Difference]: With dead ends: 1197 [2018-07-25 08:36:46,626 INFO L226 Difference]: Without dead ends: 869 [2018-07-25 08:36:46,627 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:36:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2018-07-25 08:36:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 671. [2018-07-25 08:36:47,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2018-07-25 08:36:47,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 2941 transitions. [2018-07-25 08:36:47,040 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 2941 transitions. Word has length 6 [2018-07-25 08:36:47,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:47,040 INFO L472 AbstractCegarLoop]: Abstraction has 671 states and 2941 transitions. [2018-07-25 08:36:47,040 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:36:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 2941 transitions. [2018-07-25 08:36:47,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:47,041 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:47,042 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:47,042 INFO L415 AbstractCegarLoop]: === Iteration 34 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:47,042 INFO L82 PathProgramCache]: Analyzing trace with hash 914072468, now seen corresponding path program 1 times [2018-07-25 08:36:47,042 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:47,054 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:47,054 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:47,054 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:47,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:47,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:47,055 INFO L87 Difference]: Start difference. First operand 671 states and 2941 transitions. Second operand 7 states. [2018-07-25 08:36:47,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:47,827 INFO L93 Difference]: Finished difference Result 1201 states and 4932 transitions. [2018-07-25 08:36:47,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:36:47,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:47,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:47,830 INFO L225 Difference]: With dead ends: 1201 [2018-07-25 08:36:47,830 INFO L226 Difference]: Without dead ends: 1195 [2018-07-25 08:36:47,831 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:36:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2018-07-25 08:36:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 752. [2018-07-25 08:36:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-07-25 08:36:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 3312 transitions. [2018-07-25 08:36:48,232 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 3312 transitions. Word has length 6 [2018-07-25 08:36:48,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:48,232 INFO L472 AbstractCegarLoop]: Abstraction has 752 states and 3312 transitions. [2018-07-25 08:36:48,232 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 3312 transitions. [2018-07-25 08:36:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:48,233 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:48,233 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:48,233 INFO L415 AbstractCegarLoop]: === Iteration 35 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:48,234 INFO L82 PathProgramCache]: Analyzing trace with hash 914072471, now seen corresponding path program 1 times [2018-07-25 08:36:48,234 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:48,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:48,245 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:48,245 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:48,245 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:48,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:48,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:48,246 INFO L87 Difference]: Start difference. First operand 752 states and 3312 transitions. Second operand 7 states. [2018-07-25 08:36:49,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:49,061 INFO L93 Difference]: Finished difference Result 1250 states and 5213 transitions. [2018-07-25 08:36:49,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:49,061 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:49,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:49,064 INFO L225 Difference]: With dead ends: 1250 [2018-07-25 08:36:49,065 INFO L226 Difference]: Without dead ends: 1244 [2018-07-25 08:36:49,065 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:36:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2018-07-25 08:36:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 825. [2018-07-25 08:36:49,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2018-07-25 08:36:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 3616 transitions. [2018-07-25 08:36:49,498 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 3616 transitions. Word has length 6 [2018-07-25 08:36:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:49,498 INFO L472 AbstractCegarLoop]: Abstraction has 825 states and 3616 transitions. [2018-07-25 08:36:49,498 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 3616 transitions. [2018-07-25 08:36:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:49,499 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:49,499 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:49,500 INFO L415 AbstractCegarLoop]: === Iteration 36 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:49,500 INFO L82 PathProgramCache]: Analyzing trace with hash 914569284, now seen corresponding path program 1 times [2018-07-25 08:36:49,500 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:49,511 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:49,511 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:49,511 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:49,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:49,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:49,511 INFO L87 Difference]: Start difference. First operand 825 states and 3616 transitions. Second operand 7 states. [2018-07-25 08:36:50,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:50,638 INFO L93 Difference]: Finished difference Result 1256 states and 5269 transitions. [2018-07-25 08:36:50,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-25 08:36:50,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:50,641 INFO L225 Difference]: With dead ends: 1256 [2018-07-25 08:36:50,641 INFO L226 Difference]: Without dead ends: 1250 [2018-07-25 08:36:50,641 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:36:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-07-25 08:36:51,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 857. [2018-07-25 08:36:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2018-07-25 08:36:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 3741 transitions. [2018-07-25 08:36:51,114 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 3741 transitions. Word has length 6 [2018-07-25 08:36:51,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:51,114 INFO L472 AbstractCegarLoop]: Abstraction has 857 states and 3741 transitions. [2018-07-25 08:36:51,114 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 3741 transitions. [2018-07-25 08:36:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:51,115 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:51,115 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:51,115 INFO L415 AbstractCegarLoop]: === Iteration 37 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:51,115 INFO L82 PathProgramCache]: Analyzing trace with hash 914569157, now seen corresponding path program 1 times [2018-07-25 08:36:51,115 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:51,126 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:51,126 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:51,127 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:51,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:51,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:51,127 INFO L87 Difference]: Start difference. First operand 857 states and 3741 transitions. Second operand 7 states. [2018-07-25 08:36:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:51,993 INFO L93 Difference]: Finished difference Result 1225 states and 5152 transitions. [2018-07-25 08:36:51,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:36:51,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:51,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:51,996 INFO L225 Difference]: With dead ends: 1225 [2018-07-25 08:36:51,996 INFO L226 Difference]: Without dead ends: 1219 [2018-07-25 08:36:51,997 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:36:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2018-07-25 08:36:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 849. [2018-07-25 08:36:52,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2018-07-25 08:36:52,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 3706 transitions. [2018-07-25 08:36:52,478 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 3706 transitions. Word has length 6 [2018-07-25 08:36:52,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:52,478 INFO L472 AbstractCegarLoop]: Abstraction has 849 states and 3706 transitions. [2018-07-25 08:36:52,478 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:52,478 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 3706 transitions. [2018-07-25 08:36:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:52,479 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:52,479 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:52,480 INFO L415 AbstractCegarLoop]: === Iteration 38 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:52,480 INFO L82 PathProgramCache]: Analyzing trace with hash 913940811, now seen corresponding path program 1 times [2018-07-25 08:36:52,480 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:52,494 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:52,494 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:52,494 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:52,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:52,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:52,494 INFO L87 Difference]: Start difference. First operand 849 states and 3706 transitions. Second operand 7 states. [2018-07-25 08:36:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:53,449 INFO L93 Difference]: Finished difference Result 1442 states and 5955 transitions. [2018-07-25 08:36:53,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:53,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:53,453 INFO L225 Difference]: With dead ends: 1442 [2018-07-25 08:36:53,454 INFO L226 Difference]: Without dead ends: 1436 [2018-07-25 08:36:53,455 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:53,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2018-07-25 08:36:54,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 905. [2018-07-25 08:36:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2018-07-25 08:36:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 3981 transitions. [2018-07-25 08:36:54,019 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 3981 transitions. Word has length 6 [2018-07-25 08:36:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:54,019 INFO L472 AbstractCegarLoop]: Abstraction has 905 states and 3981 transitions. [2018-07-25 08:36:54,020 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 3981 transitions. [2018-07-25 08:36:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:54,020 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:54,020 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:54,021 INFO L415 AbstractCegarLoop]: === Iteration 39 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:54,021 INFO L82 PathProgramCache]: Analyzing trace with hash 913940814, now seen corresponding path program 1 times [2018-07-25 08:36:54,021 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:54,036 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:54,036 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:54,037 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:54,037 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:54,037 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:54,037 INFO L87 Difference]: Start difference. First operand 905 states and 3981 transitions. Second operand 7 states. [2018-07-25 08:36:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:55,055 INFO L93 Difference]: Finished difference Result 1440 states and 5977 transitions. [2018-07-25 08:36:55,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:36:55,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:55,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:55,059 INFO L225 Difference]: With dead ends: 1440 [2018-07-25 08:36:55,059 INFO L226 Difference]: Without dead ends: 1434 [2018-07-25 08:36:55,060 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:36:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2018-07-25 08:36:55,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 889. [2018-07-25 08:36:55,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2018-07-25 08:36:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 3911 transitions. [2018-07-25 08:36:55,580 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 3911 transitions. Word has length 6 [2018-07-25 08:36:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:55,581 INFO L472 AbstractCegarLoop]: Abstraction has 889 states and 3911 transitions. [2018-07-25 08:36:55,581 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:55,581 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 3911 transitions. [2018-07-25 08:36:55,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:55,582 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:55,582 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:55,582 INFO L415 AbstractCegarLoop]: === Iteration 40 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:55,582 INFO L82 PathProgramCache]: Analyzing trace with hash 913927853, now seen corresponding path program 1 times [2018-07-25 08:36:55,582 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:55,598 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:55,598 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:55,599 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:55,599 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:55,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:55,599 INFO L87 Difference]: Start difference. First operand 889 states and 3911 transitions. Second operand 7 states. [2018-07-25 08:36:56,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:56,581 INFO L93 Difference]: Finished difference Result 1361 states and 5672 transitions. [2018-07-25 08:36:56,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:36:56,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:56,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:56,584 INFO L225 Difference]: With dead ends: 1361 [2018-07-25 08:36:56,585 INFO L226 Difference]: Without dead ends: 1355 [2018-07-25 08:36:56,585 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2018-07-25 08:36:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 900. [2018-07-25 08:36:57,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2018-07-25 08:36:57,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 3963 transitions. [2018-07-25 08:36:57,124 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 3963 transitions. Word has length 6 [2018-07-25 08:36:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:57,124 INFO L472 AbstractCegarLoop]: Abstraction has 900 states and 3963 transitions. [2018-07-25 08:36:57,124 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 3963 transitions. [2018-07-25 08:36:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:36:57,125 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:57,125 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-25 08:36:57,125 INFO L415 AbstractCegarLoop]: === Iteration 41 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash 913927856, now seen corresponding path program 1 times [2018-07-25 08:36:57,125 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:57,149 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:57,149 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 08:36:57,149 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:57,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:57,150 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:57,150 INFO L87 Difference]: Start difference. First operand 900 states and 3963 transitions. Second operand 7 states. [2018-07-25 08:36:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:58,433 INFO L93 Difference]: Finished difference Result 1349 states and 5655 transitions. [2018-07-25 08:36:58,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:36:58,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-25 08:36:58,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:58,436 INFO L225 Difference]: With dead ends: 1349 [2018-07-25 08:36:58,436 INFO L226 Difference]: Without dead ends: 1343 [2018-07-25 08:36:58,437 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:36:58,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2018-07-25 08:36:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 896. [2018-07-25 08:36:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2018-07-25 08:36:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 3945 transitions. [2018-07-25 08:36:58,987 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 3945 transitions. Word has length 6 [2018-07-25 08:36:58,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:58,988 INFO L472 AbstractCegarLoop]: Abstraction has 896 states and 3945 transitions. [2018-07-25 08:36:58,988 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 3945 transitions. [2018-07-25 08:36:58,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:36:58,989 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:58,989 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:36:58,989 INFO L415 AbstractCegarLoop]: === Iteration 42 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:58,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1215232670, now seen corresponding path program 1 times [2018-07-25 08:36:58,990 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:59,006 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:59,006 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:36:59,006 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:36:59,006 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:36:59,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:36:59,007 INFO L87 Difference]: Start difference. First operand 896 states and 3945 transitions. Second operand 8 states. [2018-07-25 08:37:00,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:00,493 INFO L93 Difference]: Finished difference Result 1632 states and 6899 transitions. [2018-07-25 08:37:00,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-25 08:37:00,493 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:00,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:00,497 INFO L225 Difference]: With dead ends: 1632 [2018-07-25 08:37:00,497 INFO L226 Difference]: Without dead ends: 1626 [2018-07-25 08:37:00,498 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:37:00,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2018-07-25 08:37:01,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1177. [2018-07-25 08:37:01,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1177 states. [2018-07-25 08:37:01,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 5230 transitions. [2018-07-25 08:37:01,235 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 5230 transitions. Word has length 7 [2018-07-25 08:37:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:01,236 INFO L472 AbstractCegarLoop]: Abstraction has 1177 states and 5230 transitions. [2018-07-25 08:37:01,236 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:01,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 5230 transitions. [2018-07-25 08:37:01,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:01,237 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:01,237 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:01,238 INFO L415 AbstractCegarLoop]: === Iteration 43 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:01,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1215233045, now seen corresponding path program 1 times [2018-07-25 08:37:01,238 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:01,253 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:01,253 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:01,254 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:01,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:01,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:01,254 INFO L87 Difference]: Start difference. First operand 1177 states and 5230 transitions. Second operand 8 states. [2018-07-25 08:37:02,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:02,344 INFO L93 Difference]: Finished difference Result 1376 states and 5845 transitions. [2018-07-25 08:37:02,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:37:02,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:02,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:02,348 INFO L225 Difference]: With dead ends: 1376 [2018-07-25 08:37:02,348 INFO L226 Difference]: Without dead ends: 1370 [2018-07-25 08:37:02,348 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:37:02,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2018-07-25 08:37:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1171. [2018-07-25 08:37:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1171 states. [2018-07-25 08:37:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 5199 transitions. [2018-07-25 08:37:03,094 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 5199 transitions. Word has length 7 [2018-07-25 08:37:03,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:03,094 INFO L472 AbstractCegarLoop]: Abstraction has 1171 states and 5199 transitions. [2018-07-25 08:37:03,094 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:03,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 5199 transitions. [2018-07-25 08:37:03,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:03,095 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:03,096 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:03,096 INFO L415 AbstractCegarLoop]: === Iteration 44 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:03,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1202921392, now seen corresponding path program 1 times [2018-07-25 08:37:03,096 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:03,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:03,105 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:03,106 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:03,106 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:03,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:03,106 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:03,106 INFO L87 Difference]: Start difference. First operand 1171 states and 5199 transitions. Second operand 8 states. [2018-07-25 08:37:04,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:04,429 INFO L93 Difference]: Finished difference Result 1643 states and 7055 transitions. [2018-07-25 08:37:04,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:37:04,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:04,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:04,433 INFO L225 Difference]: With dead ends: 1643 [2018-07-25 08:37:04,433 INFO L226 Difference]: Without dead ends: 1637 [2018-07-25 08:37:04,434 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-07-25 08:37:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2018-07-25 08:37:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1203. [2018-07-25 08:37:05,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2018-07-25 08:37:05,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 5375 transitions. [2018-07-25 08:37:05,210 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 5375 transitions. Word has length 7 [2018-07-25 08:37:05,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:05,210 INFO L472 AbstractCegarLoop]: Abstraction has 1203 states and 5375 transitions. [2018-07-25 08:37:05,210 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 5375 transitions. [2018-07-25 08:37:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:05,211 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:05,212 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:05,212 INFO L415 AbstractCegarLoop]: === Iteration 45 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:05,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1202921767, now seen corresponding path program 1 times [2018-07-25 08:37:05,212 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:05,220 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:05,220 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:05,220 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:05,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:05,220 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:05,220 INFO L87 Difference]: Start difference. First operand 1203 states and 5375 transitions. Second operand 8 states. [2018-07-25 08:37:06,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:06,658 INFO L93 Difference]: Finished difference Result 1627 states and 7002 transitions. [2018-07-25 08:37:06,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:37:06,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:06,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:06,662 INFO L225 Difference]: With dead ends: 1627 [2018-07-25 08:37:06,662 INFO L226 Difference]: Without dead ends: 1621 [2018-07-25 08:37:06,663 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:37:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2018-07-25 08:37:07,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1282. [2018-07-25 08:37:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2018-07-25 08:37:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5742 transitions. [2018-07-25 08:37:07,506 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5742 transitions. Word has length 7 [2018-07-25 08:37:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:07,507 INFO L472 AbstractCegarLoop]: Abstraction has 1282 states and 5742 transitions. [2018-07-25 08:37:07,507 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5742 transitions. [2018-07-25 08:37:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:07,508 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:07,508 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:07,508 INFO L415 AbstractCegarLoop]: === Iteration 46 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:07,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1202932831, now seen corresponding path program 1 times [2018-07-25 08:37:07,508 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:07,516 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:07,516 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:07,517 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:07,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:07,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:07,517 INFO L87 Difference]: Start difference. First operand 1282 states and 5742 transitions. Second operand 8 states. [2018-07-25 08:37:09,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:09,001 INFO L93 Difference]: Finished difference Result 1692 states and 7228 transitions. [2018-07-25 08:37:09,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:37:09,001 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:09,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:09,005 INFO L225 Difference]: With dead ends: 1692 [2018-07-25 08:37:09,005 INFO L226 Difference]: Without dead ends: 1686 [2018-07-25 08:37:09,006 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:37:09,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2018-07-25 08:37:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1244. [2018-07-25 08:37:10,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1244 states. [2018-07-25 08:37:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 5541 transitions. [2018-07-25 08:37:10,020 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 5541 transitions. Word has length 7 [2018-07-25 08:37:10,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:10,020 INFO L472 AbstractCegarLoop]: Abstraction has 1244 states and 5541 transitions. [2018-07-25 08:37:10,020 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 5541 transitions. [2018-07-25 08:37:10,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:10,021 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:10,022 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:10,022 INFO L415 AbstractCegarLoop]: === Iteration 47 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:10,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1202933206, now seen corresponding path program 1 times [2018-07-25 08:37:10,022 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:10,034 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:10,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:10,034 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:10,034 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:10,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:10,035 INFO L87 Difference]: Start difference. First operand 1244 states and 5541 transitions. Second operand 8 states. [2018-07-25 08:37:11,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:11,675 INFO L93 Difference]: Finished difference Result 1668 states and 7135 transitions. [2018-07-25 08:37:11,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:37:11,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:11,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:11,679 INFO L225 Difference]: With dead ends: 1668 [2018-07-25 08:37:11,680 INFO L226 Difference]: Without dead ends: 1666 [2018-07-25 08:37:11,680 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2018-07-25 08:37:11,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2018-07-25 08:37:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1223. [2018-07-25 08:37:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2018-07-25 08:37:12,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 5442 transitions. [2018-07-25 08:37:12,600 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 5442 transitions. Word has length 7 [2018-07-25 08:37:12,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:12,600 INFO L472 AbstractCegarLoop]: Abstraction has 1223 states and 5442 transitions. [2018-07-25 08:37:12,600 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 5442 transitions. [2018-07-25 08:37:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:12,601 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:12,601 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:12,601 INFO L415 AbstractCegarLoop]: === Iteration 48 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:12,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1245822743, now seen corresponding path program 1 times [2018-07-25 08:37:12,602 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:12,613 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:12,613 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:12,613 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:12,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:12,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:12,614 INFO L87 Difference]: Start difference. First operand 1223 states and 5442 transitions. Second operand 8 states. [2018-07-25 08:37:13,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:13,839 INFO L93 Difference]: Finished difference Result 1979 states and 8650 transitions. [2018-07-25 08:37:13,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:37:13,839 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:13,843 INFO L225 Difference]: With dead ends: 1979 [2018-07-25 08:37:13,843 INFO L226 Difference]: Without dead ends: 1562 [2018-07-25 08:37:13,846 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-07-25 08:37:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2018-07-25 08:37:14,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1266. [2018-07-25 08:37:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2018-07-25 08:37:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 5570 transitions. [2018-07-25 08:37:14,749 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 5570 transitions. Word has length 7 [2018-07-25 08:37:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:14,749 INFO L472 AbstractCegarLoop]: Abstraction has 1266 states and 5570 transitions. [2018-07-25 08:37:14,749 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:14,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 5570 transitions. [2018-07-25 08:37:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:14,750 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:14,751 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:14,751 INFO L415 AbstractCegarLoop]: === Iteration 49 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:14,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1245822746, now seen corresponding path program 1 times [2018-07-25 08:37:14,751 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:14,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:14,764 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:14,765 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:14,765 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:14,765 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:14,765 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:14,765 INFO L87 Difference]: Start difference. First operand 1266 states and 5570 transitions. Second operand 8 states. [2018-07-25 08:37:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:16,373 INFO L93 Difference]: Finished difference Result 1823 states and 7865 transitions. [2018-07-25 08:37:16,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-25 08:37:16,373 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:16,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:16,377 INFO L225 Difference]: With dead ends: 1823 [2018-07-25 08:37:16,378 INFO L226 Difference]: Without dead ends: 1817 [2018-07-25 08:37:16,379 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2018-07-25 08:37:16,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2018-07-25 08:37:17,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1390. [2018-07-25 08:37:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2018-07-25 08:37:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 6137 transitions. [2018-07-25 08:37:17,400 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 6137 transitions. Word has length 7 [2018-07-25 08:37:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:17,401 INFO L472 AbstractCegarLoop]: Abstraction has 1390 states and 6137 transitions. [2018-07-25 08:37:17,401 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 6137 transitions. [2018-07-25 08:37:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:17,402 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:17,402 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:17,402 INFO L415 AbstractCegarLoop]: === Iteration 50 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:17,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1258459411, now seen corresponding path program 1 times [2018-07-25 08:37:17,403 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:17,414 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:17,414 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:17,415 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:17,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:17,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:17,415 INFO L87 Difference]: Start difference. First operand 1390 states and 6137 transitions. Second operand 8 states. [2018-07-25 08:37:19,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:19,074 INFO L93 Difference]: Finished difference Result 1838 states and 7765 transitions. [2018-07-25 08:37:19,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-25 08:37:19,074 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:19,079 INFO L225 Difference]: With dead ends: 1838 [2018-07-25 08:37:19,079 INFO L226 Difference]: Without dead ends: 1832 [2018-07-25 08:37:19,079 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:37:19,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2018-07-25 08:37:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1163. [2018-07-25 08:37:19,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1163 states. [2018-07-25 08:37:19,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 5098 transitions. [2018-07-25 08:37:19,950 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 5098 transitions. Word has length 7 [2018-07-25 08:37:19,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:19,950 INFO L472 AbstractCegarLoop]: Abstraction has 1163 states and 5098 transitions. [2018-07-25 08:37:19,950 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:19,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 5098 transitions. [2018-07-25 08:37:19,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:19,951 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:19,951 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:19,951 INFO L415 AbstractCegarLoop]: === Iteration 51 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:19,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1258459786, now seen corresponding path program 1 times [2018-07-25 08:37:19,952 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:19,964 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:19,964 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:19,964 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:19,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:19,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:19,965 INFO L87 Difference]: Start difference. First operand 1163 states and 5098 transitions. Second operand 8 states. [2018-07-25 08:37:21,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:21,365 INFO L93 Difference]: Finished difference Result 1536 states and 6478 transitions. [2018-07-25 08:37:21,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:37:21,366 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:21,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:21,370 INFO L225 Difference]: With dead ends: 1536 [2018-07-25 08:37:21,370 INFO L226 Difference]: Without dead ends: 1530 [2018-07-25 08:37:21,371 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2018-07-25 08:37:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2018-07-25 08:37:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1072. [2018-07-25 08:37:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2018-07-25 08:37:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 4678 transitions. [2018-07-25 08:37:22,214 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 4678 transitions. Word has length 7 [2018-07-25 08:37:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:22,214 INFO L472 AbstractCegarLoop]: Abstraction has 1072 states and 4678 transitions. [2018-07-25 08:37:22,214 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 4678 transitions. [2018-07-25 08:37:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:22,215 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:22,215 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:22,216 INFO L415 AbstractCegarLoop]: === Iteration 52 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:22,216 INFO L82 PathProgramCache]: Analyzing trace with hash 792850588, now seen corresponding path program 1 times [2018-07-25 08:37:22,216 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:22,225 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:22,225 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:22,226 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:22,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:22,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:22,226 INFO L87 Difference]: Start difference. First operand 1072 states and 4678 transitions. Second operand 8 states. [2018-07-25 08:37:23,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:23,784 INFO L93 Difference]: Finished difference Result 1630 states and 6984 transitions. [2018-07-25 08:37:23,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:37:23,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:23,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:23,788 INFO L225 Difference]: With dead ends: 1630 [2018-07-25 08:37:23,788 INFO L226 Difference]: Without dead ends: 1618 [2018-07-25 08:37:23,789 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:37:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2018-07-25 08:37:24,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1182. [2018-07-25 08:37:24,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1182 states. [2018-07-25 08:37:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 5237 transitions. [2018-07-25 08:37:24,758 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 5237 transitions. Word has length 7 [2018-07-25 08:37:24,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:24,759 INFO L472 AbstractCegarLoop]: Abstraction has 1182 states and 5237 transitions. [2018-07-25 08:37:24,759 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 5237 transitions. [2018-07-25 08:37:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:24,760 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:24,760 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:24,760 INFO L415 AbstractCegarLoop]: === Iteration 53 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:24,760 INFO L82 PathProgramCache]: Analyzing trace with hash 792058662, now seen corresponding path program 1 times [2018-07-25 08:37:24,760 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:24,769 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:24,769 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:24,769 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:24,769 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:24,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:24,769 INFO L87 Difference]: Start difference. First operand 1182 states and 5237 transitions. Second operand 8 states. [2018-07-25 08:37:26,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:26,429 INFO L93 Difference]: Finished difference Result 1554 states and 6632 transitions. [2018-07-25 08:37:26,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:37:26,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:26,433 INFO L225 Difference]: With dead ends: 1554 [2018-07-25 08:37:26,433 INFO L226 Difference]: Without dead ends: 1548 [2018-07-25 08:37:26,434 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:37:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2018-07-25 08:37:27,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1166. [2018-07-25 08:37:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1166 states. [2018-07-25 08:37:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 5153 transitions. [2018-07-25 08:37:27,407 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 5153 transitions. Word has length 7 [2018-07-25 08:37:27,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:27,407 INFO L472 AbstractCegarLoop]: Abstraction has 1166 states and 5153 transitions. [2018-07-25 08:37:27,407 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 5153 transitions. [2018-07-25 08:37:27,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:27,408 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:27,408 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:27,408 INFO L415 AbstractCegarLoop]: === Iteration 54 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:27,409 INFO L82 PathProgramCache]: Analyzing trace with hash 792058665, now seen corresponding path program 1 times [2018-07-25 08:37:27,409 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:27,418 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:27,418 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:27,418 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:27,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:27,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:27,419 INFO L87 Difference]: Start difference. First operand 1166 states and 5153 transitions. Second operand 8 states. [2018-07-25 08:37:29,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:29,352 INFO L93 Difference]: Finished difference Result 1766 states and 7491 transitions. [2018-07-25 08:37:29,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:37:29,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:29,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:29,358 INFO L225 Difference]: With dead ends: 1766 [2018-07-25 08:37:29,358 INFO L226 Difference]: Without dead ends: 1764 [2018-07-25 08:37:29,359 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:37:29,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2018-07-25 08:37:30,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1149. [2018-07-25 08:37:30,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1149 states. [2018-07-25 08:37:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 5076 transitions. [2018-07-25 08:37:30,378 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 5076 transitions. Word has length 7 [2018-07-25 08:37:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:30,378 INFO L472 AbstractCegarLoop]: Abstraction has 1149 states and 5076 transitions. [2018-07-25 08:37:30,378 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 5076 transitions. [2018-07-25 08:37:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:30,379 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:30,379 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:30,379 INFO L415 AbstractCegarLoop]: === Iteration 55 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:30,380 INFO L82 PathProgramCache]: Analyzing trace with hash 792055841, now seen corresponding path program 1 times [2018-07-25 08:37:30,380 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:30,390 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:30,390 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:30,390 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:30,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:30,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:30,390 INFO L87 Difference]: Start difference. First operand 1149 states and 5076 transitions. Second operand 8 states. [2018-07-25 08:37:32,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:32,371 INFO L93 Difference]: Finished difference Result 1832 states and 7818 transitions. [2018-07-25 08:37:32,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 08:37:32,371 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:32,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:32,375 INFO L225 Difference]: With dead ends: 1832 [2018-07-25 08:37:32,375 INFO L226 Difference]: Without dead ends: 1826 [2018-07-25 08:37:32,376 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:37:32,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2018-07-25 08:37:33,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1154. [2018-07-25 08:37:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1154 states. [2018-07-25 08:37:33,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 5098 transitions. [2018-07-25 08:37:33,376 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 5098 transitions. Word has length 7 [2018-07-25 08:37:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:33,376 INFO L472 AbstractCegarLoop]: Abstraction has 1154 states and 5098 transitions. [2018-07-25 08:37:33,377 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 5098 transitions. [2018-07-25 08:37:33,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:33,377 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:33,377 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:33,377 INFO L415 AbstractCegarLoop]: === Iteration 56 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:33,378 INFO L82 PathProgramCache]: Analyzing trace with hash 792055844, now seen corresponding path program 1 times [2018-07-25 08:37:33,378 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:33,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:33,392 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:33,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:33,392 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:33,392 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:33,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:33,393 INFO L87 Difference]: Start difference. First operand 1154 states and 5098 transitions. Second operand 8 states. [2018-07-25 08:37:35,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:35,414 INFO L93 Difference]: Finished difference Result 1820 states and 7670 transitions. [2018-07-25 08:37:35,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-25 08:37:35,414 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:35,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:35,419 INFO L225 Difference]: With dead ends: 1820 [2018-07-25 08:37:35,419 INFO L226 Difference]: Without dead ends: 1814 [2018-07-25 08:37:35,420 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:37:35,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2018-07-25 08:37:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1048. [2018-07-25 08:37:36,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-07-25 08:37:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 4552 transitions. [2018-07-25 08:37:36,500 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 4552 transitions. Word has length 7 [2018-07-25 08:37:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:36,500 INFO L472 AbstractCegarLoop]: Abstraction has 1048 states and 4552 transitions. [2018-07-25 08:37:36,500 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 4552 transitions. [2018-07-25 08:37:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:36,501 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:36,501 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:36,501 INFO L415 AbstractCegarLoop]: === Iteration 57 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:36,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1734683267, now seen corresponding path program 1 times [2018-07-25 08:37:36,502 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:36,518 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:36,518 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:36,519 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:36,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:36,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:36,519 INFO L87 Difference]: Start difference. First operand 1048 states and 4552 transitions. Second operand 8 states. [2018-07-25 08:37:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:38,732 INFO L93 Difference]: Finished difference Result 1741 states and 7174 transitions. [2018-07-25 08:37:38,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-25 08:37:38,732 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:38,736 INFO L225 Difference]: With dead ends: 1741 [2018-07-25 08:37:38,736 INFO L226 Difference]: Without dead ends: 1735 [2018-07-25 08:37:38,737 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-07-25 08:37:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2018-07-25 08:37:39,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1077. [2018-07-25 08:37:39,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2018-07-25 08:37:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 4692 transitions. [2018-07-25 08:37:39,758 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 4692 transitions. Word has length 7 [2018-07-25 08:37:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:39,758 INFO L472 AbstractCegarLoop]: Abstraction has 1077 states and 4692 transitions. [2018-07-25 08:37:39,759 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:39,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 4692 transitions. [2018-07-25 08:37:39,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:39,759 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:39,759 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:39,760 INFO L415 AbstractCegarLoop]: === Iteration 58 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:39,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1734682892, now seen corresponding path program 1 times [2018-07-25 08:37:39,760 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:39,781 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:39,781 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:39,781 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:39,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:39,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:39,782 INFO L87 Difference]: Start difference. First operand 1077 states and 4692 transitions. Second operand 8 states. [2018-07-25 08:37:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:42,526 INFO L93 Difference]: Finished difference Result 1734 states and 7201 transitions. [2018-07-25 08:37:42,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-25 08:37:42,527 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:42,530 INFO L225 Difference]: With dead ends: 1734 [2018-07-25 08:37:42,530 INFO L226 Difference]: Without dead ends: 1728 [2018-07-25 08:37:42,531 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2018-07-25 08:37:42,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2018-07-25 08:37:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1068. [2018-07-25 08:37:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-07-25 08:37:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 4655 transitions. [2018-07-25 08:37:43,575 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 4655 transitions. Word has length 7 [2018-07-25 08:37:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:43,575 INFO L472 AbstractCegarLoop]: Abstraction has 1068 states and 4655 transitions. [2018-07-25 08:37:43,575 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:43,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 4655 transitions. [2018-07-25 08:37:43,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:43,576 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:43,576 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:43,576 INFO L415 AbstractCegarLoop]: === Iteration 59 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:43,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1734671828, now seen corresponding path program 1 times [2018-07-25 08:37:43,577 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:43,594 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:43,594 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:43,594 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:43,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:43,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:43,595 INFO L87 Difference]: Start difference. First operand 1068 states and 4655 transitions. Second operand 8 states. [2018-07-25 08:37:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:45,786 INFO L93 Difference]: Finished difference Result 1680 states and 6963 transitions. [2018-07-25 08:37:45,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:37:45,786 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:45,790 INFO L225 Difference]: With dead ends: 1680 [2018-07-25 08:37:45,790 INFO L226 Difference]: Without dead ends: 1674 [2018-07-25 08:37:45,790 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:37:45,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2018-07-25 08:37:46,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1058. [2018-07-25 08:37:46,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1058 states. [2018-07-25 08:37:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 4600 transitions. [2018-07-25 08:37:46,858 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 4600 transitions. Word has length 7 [2018-07-25 08:37:46,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:46,859 INFO L472 AbstractCegarLoop]: Abstraction has 1058 states and 4600 transitions. [2018-07-25 08:37:46,859 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 4600 transitions. [2018-07-25 08:37:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:46,860 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:46,860 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:46,860 INFO L415 AbstractCegarLoop]: === Iteration 60 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:46,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1734671453, now seen corresponding path program 1 times [2018-07-25 08:37:46,861 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:46,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:46,878 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:46,879 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:46,879 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:46,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:46,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:46,879 INFO L87 Difference]: Start difference. First operand 1058 states and 4600 transitions. Second operand 8 states. [2018-07-25 08:37:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:49,475 INFO L93 Difference]: Finished difference Result 1693 states and 7034 transitions. [2018-07-25 08:37:49,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:37:49,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:49,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:49,479 INFO L225 Difference]: With dead ends: 1693 [2018-07-25 08:37:49,479 INFO L226 Difference]: Without dead ends: 1691 [2018-07-25 08:37:49,480 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:37:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2018-07-25 08:37:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1025. [2018-07-25 08:37:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2018-07-25 08:37:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 4437 transitions. [2018-07-25 08:37:50,548 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 4437 transitions. Word has length 7 [2018-07-25 08:37:50,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:50,548 INFO L472 AbstractCegarLoop]: Abstraction has 1025 states and 4437 transitions. [2018-07-25 08:37:50,548 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:50,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 4437 transitions. [2018-07-25 08:37:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:50,549 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:50,549 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:50,549 INFO L415 AbstractCegarLoop]: === Iteration 61 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:50,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1730207890, now seen corresponding path program 1 times [2018-07-25 08:37:50,550 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:50,561 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:50,561 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:50,561 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:50,561 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:50,562 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:50,562 INFO L87 Difference]: Start difference. First operand 1025 states and 4437 transitions. Second operand 8 states. [2018-07-25 08:37:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:53,227 INFO L93 Difference]: Finished difference Result 1997 states and 8274 transitions. [2018-07-25 08:37:53,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-25 08:37:53,227 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:53,232 INFO L225 Difference]: With dead ends: 1997 [2018-07-25 08:37:53,232 INFO L226 Difference]: Without dead ends: 1991 [2018-07-25 08:37:53,233 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2018-07-25 08:37:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2018-07-25 08:37:54,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1089. [2018-07-25 08:37:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1089 states. [2018-07-25 08:37:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 4710 transitions. [2018-07-25 08:37:54,407 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 4710 transitions. Word has length 7 [2018-07-25 08:37:54,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:54,407 INFO L472 AbstractCegarLoop]: Abstraction has 1089 states and 4710 transitions. [2018-07-25 08:37:54,407 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 4710 transitions. [2018-07-25 08:37:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:54,408 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:54,408 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:54,409 INFO L415 AbstractCegarLoop]: === Iteration 62 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:54,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1730207515, now seen corresponding path program 1 times [2018-07-25 08:37:54,409 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:54,422 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:54,422 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:54,422 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:54,422 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:54,422 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:54,423 INFO L87 Difference]: Start difference. First operand 1089 states and 4710 transitions. Second operand 8 states. [2018-07-25 08:37:56,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:56,706 INFO L93 Difference]: Finished difference Result 1637 states and 6902 transitions. [2018-07-25 08:37:56,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:37:56,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:37:56,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:56,710 INFO L225 Difference]: With dead ends: 1637 [2018-07-25 08:37:56,710 INFO L226 Difference]: Without dead ends: 1631 [2018-07-25 08:37:56,711 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:37:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2018-07-25 08:37:58,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1325. [2018-07-25 08:37:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2018-07-25 08:37:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 5776 transitions. [2018-07-25 08:37:58,144 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 5776 transitions. Word has length 7 [2018-07-25 08:37:58,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:58,145 INFO L472 AbstractCegarLoop]: Abstraction has 1325 states and 5776 transitions. [2018-07-25 08:37:58,145 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:37:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 5776 transitions. [2018-07-25 08:37:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:37:58,146 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:58,146 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:37:58,146 INFO L415 AbstractCegarLoop]: === Iteration 63 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:58,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1728542101, now seen corresponding path program 1 times [2018-07-25 08:37:58,146 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:58,156 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:37:58,156 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:37:58,156 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:37:58,157 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:37:58,157 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:37:58,157 INFO L87 Difference]: Start difference. First operand 1325 states and 5776 transitions. Second operand 8 states. [2018-07-25 08:38:00,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:00,430 INFO L93 Difference]: Finished difference Result 1882 states and 7972 transitions. [2018-07-25 08:38:00,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:38:00,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:00,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:00,435 INFO L225 Difference]: With dead ends: 1882 [2018-07-25 08:38:00,435 INFO L226 Difference]: Without dead ends: 1876 [2018-07-25 08:38:00,436 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:38:00,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2018-07-25 08:38:01,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1337. [2018-07-25 08:38:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2018-07-25 08:38:01,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 5824 transitions. [2018-07-25 08:38:01,946 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 5824 transitions. Word has length 7 [2018-07-25 08:38:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:01,946 INFO L472 AbstractCegarLoop]: Abstraction has 1337 states and 5824 transitions. [2018-07-25 08:38:01,946 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:01,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 5824 transitions. [2018-07-25 08:38:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:01,947 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:01,947 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:01,948 INFO L415 AbstractCegarLoop]: === Iteration 64 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:01,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1728541990, now seen corresponding path program 1 times [2018-07-25 08:38:01,948 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:01,960 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:01,960 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:01,960 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:01,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:01,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:01,961 INFO L87 Difference]: Start difference. First operand 1337 states and 5824 transitions. Second operand 8 states. [2018-07-25 08:38:04,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:04,306 INFO L93 Difference]: Finished difference Result 1874 states and 7946 transitions. [2018-07-25 08:38:04,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-25 08:38:04,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:04,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:04,310 INFO L225 Difference]: With dead ends: 1874 [2018-07-25 08:38:04,310 INFO L226 Difference]: Without dead ends: 1868 [2018-07-25 08:38:04,311 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2018-07-25 08:38:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2018-07-25 08:38:05,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1328. [2018-07-25 08:38:05,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1328 states. [2018-07-25 08:38:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 5794 transitions. [2018-07-25 08:38:05,860 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 5794 transitions. Word has length 7 [2018-07-25 08:38:05,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:05,860 INFO L472 AbstractCegarLoop]: Abstraction has 1328 states and 5794 transitions. [2018-07-25 08:38:05,861 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 5794 transitions. [2018-07-25 08:38:05,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:05,862 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:05,862 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:05,862 INFO L415 AbstractCegarLoop]: === Iteration 65 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:05,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1713256811, now seen corresponding path program 1 times [2018-07-25 08:38:05,862 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:05,870 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:05,870 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:05,870 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:05,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:05,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:05,870 INFO L87 Difference]: Start difference. First operand 1328 states and 5794 transitions. Second operand 8 states. [2018-07-25 08:38:08,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:08,249 INFO L93 Difference]: Finished difference Result 1819 states and 7620 transitions. [2018-07-25 08:38:08,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:38:08,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:08,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:08,254 INFO L225 Difference]: With dead ends: 1819 [2018-07-25 08:38:08,254 INFO L226 Difference]: Without dead ends: 1813 [2018-07-25 08:38:08,255 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:38:08,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2018-07-25 08:38:09,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1326. [2018-07-25 08:38:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2018-07-25 08:38:09,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 5781 transitions. [2018-07-25 08:38:09,764 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 5781 transitions. Word has length 7 [2018-07-25 08:38:09,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:09,765 INFO L472 AbstractCegarLoop]: Abstraction has 1326 states and 5781 transitions. [2018-07-25 08:38:09,765 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:09,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 5781 transitions. [2018-07-25 08:38:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:09,766 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:09,766 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:09,766 INFO L415 AbstractCegarLoop]: === Iteration 66 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:09,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1713256436, now seen corresponding path program 1 times [2018-07-25 08:38:09,766 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:09,774 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:09,774 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:09,774 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:09,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:09,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:09,775 INFO L87 Difference]: Start difference. First operand 1326 states and 5781 transitions. Second operand 8 states. [2018-07-25 08:38:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:12,419 INFO L93 Difference]: Finished difference Result 1894 states and 7994 transitions. [2018-07-25 08:38:12,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-25 08:38:12,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:12,424 INFO L225 Difference]: With dead ends: 1894 [2018-07-25 08:38:12,424 INFO L226 Difference]: Without dead ends: 1888 [2018-07-25 08:38:12,425 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2018-07-25 08:38:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2018-07-25 08:38:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1224. [2018-07-25 08:38:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1224 states. [2018-07-25 08:38:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 5364 transitions. [2018-07-25 08:38:13,905 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 5364 transitions. Word has length 7 [2018-07-25 08:38:13,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:13,905 INFO L472 AbstractCegarLoop]: Abstraction has 1224 states and 5364 transitions. [2018-07-25 08:38:13,905 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 5364 transitions. [2018-07-25 08:38:13,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:13,906 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:13,906 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:13,906 INFO L415 AbstractCegarLoop]: === Iteration 67 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:13,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1732623468, now seen corresponding path program 1 times [2018-07-25 08:38:13,907 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:13,916 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:13,916 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:13,916 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:13,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:13,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:13,916 INFO L87 Difference]: Start difference. First operand 1224 states and 5364 transitions. Second operand 8 states. [2018-07-25 08:38:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:16,547 INFO L93 Difference]: Finished difference Result 1823 states and 7639 transitions. [2018-07-25 08:38:16,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-25 08:38:16,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:16,551 INFO L225 Difference]: With dead ends: 1823 [2018-07-25 08:38:16,552 INFO L226 Difference]: Without dead ends: 1817 [2018-07-25 08:38:16,552 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2018-07-25 08:38:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2018-07-25 08:38:18,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1235. [2018-07-25 08:38:18,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1235 states. [2018-07-25 08:38:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 5415 transitions. [2018-07-25 08:38:18,060 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 5415 transitions. Word has length 7 [2018-07-25 08:38:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:18,061 INFO L472 AbstractCegarLoop]: Abstraction has 1235 states and 5415 transitions. [2018-07-25 08:38:18,061 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:18,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 5415 transitions. [2018-07-25 08:38:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:18,062 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:18,062 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:18,062 INFO L415 AbstractCegarLoop]: === Iteration 68 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:18,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1732623357, now seen corresponding path program 1 times [2018-07-25 08:38:18,063 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:18,074 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:18,074 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:18,074 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:18,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:18,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:18,074 INFO L87 Difference]: Start difference. First operand 1235 states and 5415 transitions. Second operand 8 states. [2018-07-25 08:38:20,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:20,097 INFO L93 Difference]: Finished difference Result 1502 states and 6388 transitions. [2018-07-25 08:38:20,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:38:20,098 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:20,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:20,101 INFO L225 Difference]: With dead ends: 1502 [2018-07-25 08:38:20,101 INFO L226 Difference]: Without dead ends: 1496 [2018-07-25 08:38:20,102 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:38:20,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2018-07-25 08:38:21,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1178. [2018-07-25 08:38:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2018-07-25 08:38:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 5168 transitions. [2018-07-25 08:38:21,555 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 5168 transitions. Word has length 7 [2018-07-25 08:38:21,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:21,555 INFO L472 AbstractCegarLoop]: Abstraction has 1178 states and 5168 transitions. [2018-07-25 08:38:21,555 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:21,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 5168 transitions. [2018-07-25 08:38:21,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:21,556 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:21,556 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:21,556 INFO L415 AbstractCegarLoop]: === Iteration 69 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:21,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1733834669, now seen corresponding path program 1 times [2018-07-25 08:38:21,557 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:21,572 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:21,572 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:21,572 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:21,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:21,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:21,572 INFO L87 Difference]: Start difference. First operand 1178 states and 5168 transitions. Second operand 8 states. [2018-07-25 08:38:24,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:24,196 INFO L93 Difference]: Finished difference Result 1741 states and 7341 transitions. [2018-07-25 08:38:24,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-25 08:38:24,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:24,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:24,200 INFO L225 Difference]: With dead ends: 1741 [2018-07-25 08:38:24,201 INFO L226 Difference]: Without dead ends: 1735 [2018-07-25 08:38:24,201 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:38:24,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2018-07-25 08:38:25,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1153. [2018-07-25 08:38:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2018-07-25 08:38:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 5047 transitions. [2018-07-25 08:38:25,647 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 5047 transitions. Word has length 7 [2018-07-25 08:38:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:25,648 INFO L472 AbstractCegarLoop]: Abstraction has 1153 states and 5047 transitions. [2018-07-25 08:38:25,648 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:25,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 5047 transitions. [2018-07-25 08:38:25,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:25,649 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:25,649 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:25,649 INFO L415 AbstractCegarLoop]: === Iteration 70 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:25,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1733834558, now seen corresponding path program 1 times [2018-07-25 08:38:25,649 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:25,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:25,664 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:25,665 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:25,665 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:25,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:25,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:25,665 INFO L87 Difference]: Start difference. First operand 1153 states and 5047 transitions. Second operand 8 states. [2018-07-25 08:38:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:28,418 INFO L93 Difference]: Finished difference Result 1712 states and 7222 transitions. [2018-07-25 08:38:28,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-25 08:38:28,418 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:28,422 INFO L225 Difference]: With dead ends: 1712 [2018-07-25 08:38:28,422 INFO L226 Difference]: Without dead ends: 1710 [2018-07-25 08:38:28,422 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:38:28,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2018-07-25 08:38:29,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1145. [2018-07-25 08:38:29,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1145 states. [2018-07-25 08:38:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 5012 transitions. [2018-07-25 08:38:29,895 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 5012 transitions. Word has length 7 [2018-07-25 08:38:29,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:29,895 INFO L472 AbstractCegarLoop]: Abstraction has 1145 states and 5012 transitions. [2018-07-25 08:38:29,895 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 5012 transitions. [2018-07-25 08:38:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:29,896 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:29,896 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:29,896 INFO L415 AbstractCegarLoop]: === Iteration 71 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:29,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1733848743, now seen corresponding path program 1 times [2018-07-25 08:38:29,897 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:29,911 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:29,911 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:29,911 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:29,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:29,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:29,912 INFO L87 Difference]: Start difference. First operand 1145 states and 5012 transitions. Second operand 8 states. [2018-07-25 08:38:32,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:32,676 INFO L93 Difference]: Finished difference Result 1724 states and 7267 transitions. [2018-07-25 08:38:32,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-25 08:38:32,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:32,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:32,680 INFO L225 Difference]: With dead ends: 1724 [2018-07-25 08:38:32,680 INFO L226 Difference]: Without dead ends: 1722 [2018-07-25 08:38:32,681 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-07-25 08:38:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-07-25 08:38:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1145. [2018-07-25 08:38:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1145 states. [2018-07-25 08:38:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 5010 transitions. [2018-07-25 08:38:34,213 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 5010 transitions. Word has length 7 [2018-07-25 08:38:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:34,213 INFO L472 AbstractCegarLoop]: Abstraction has 1145 states and 5010 transitions. [2018-07-25 08:38:34,213 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 5010 transitions. [2018-07-25 08:38:34,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:38:34,214 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:34,214 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:34,214 INFO L415 AbstractCegarLoop]: === Iteration 72 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:34,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1733848632, now seen corresponding path program 1 times [2018-07-25 08:38:34,214 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:34,231 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:34,232 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 08:38:34,232 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:34,232 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:34,232 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:34,232 INFO L87 Difference]: Start difference. First operand 1145 states and 5010 transitions. Second operand 8 states. [2018-07-25 08:38:36,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:36,878 INFO L93 Difference]: Finished difference Result 1680 states and 7092 transitions. [2018-07-25 08:38:36,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-25 08:38:36,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 08:38:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:36,882 INFO L225 Difference]: With dead ends: 1680 [2018-07-25 08:38:36,882 INFO L226 Difference]: Without dead ends: 1674 [2018-07-25 08:38:36,883 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2018-07-25 08:38:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2018-07-25 08:38:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1057. [2018-07-25 08:38:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-07-25 08:38:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4579 transitions. [2018-07-25 08:38:38,320 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4579 transitions. Word has length 7 [2018-07-25 08:38:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:38,320 INFO L472 AbstractCegarLoop]: Abstraction has 1057 states and 4579 transitions. [2018-07-25 08:38:38,320 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4579 transitions. [2018-07-25 08:38:38,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:38:38,321 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:38,321 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:38,322 INFO L415 AbstractCegarLoop]: === Iteration 73 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:38,322 INFO L82 PathProgramCache]: Analyzing trace with hash -969552830, now seen corresponding path program 1 times [2018-07-25 08:38:38,322 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:38,332 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:38,333 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:38:38,333 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:38,333 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:38,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:38,333 INFO L87 Difference]: Start difference. First operand 1057 states and 4579 transitions. Second operand 8 states. [2018-07-25 08:38:43,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:43,491 INFO L93 Difference]: Finished difference Result 3153 states and 12748 transitions. [2018-07-25 08:38:43,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-25 08:38:43,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:38:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:43,499 INFO L225 Difference]: With dead ends: 3153 [2018-07-25 08:38:43,499 INFO L226 Difference]: Without dead ends: 3144 [2018-07-25 08:38:43,500 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2018-07-25 08:38:43,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2018-07-25 08:38:46,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 1718. [2018-07-25 08:38:46,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2018-07-25 08:38:46,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 7792 transitions. [2018-07-25 08:38:46,030 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 7792 transitions. Word has length 8 [2018-07-25 08:38:46,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:46,030 INFO L472 AbstractCegarLoop]: Abstraction has 1718 states and 7792 transitions. [2018-07-25 08:38:46,030 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:46,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 7792 transitions. [2018-07-25 08:38:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:38:46,032 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:46,032 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:46,032 INFO L415 AbstractCegarLoop]: === Iteration 74 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:46,032 INFO L82 PathProgramCache]: Analyzing trace with hash -969552827, now seen corresponding path program 1 times [2018-07-25 08:38:46,032 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:46,043 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:46,043 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:38:46,043 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:46,043 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:46,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:46,044 INFO L87 Difference]: Start difference. First operand 1718 states and 7792 transitions. Second operand 8 states. [2018-07-25 08:38:51,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:51,448 INFO L93 Difference]: Finished difference Result 3177 states and 12838 transitions. [2018-07-25 08:38:51,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-25 08:38:51,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:38:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:51,455 INFO L225 Difference]: With dead ends: 3177 [2018-07-25 08:38:51,456 INFO L226 Difference]: Without dead ends: 3168 [2018-07-25 08:38:51,456 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2018-07-25 08:38:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2018-07-25 08:38:53,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 1750. [2018-07-25 08:38:53,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1750 states. [2018-07-25 08:38:53,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 7931 transitions. [2018-07-25 08:38:53,991 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 7931 transitions. Word has length 8 [2018-07-25 08:38:53,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:38:53,992 INFO L472 AbstractCegarLoop]: Abstraction has 1750 states and 7931 transitions. [2018-07-25 08:38:53,992 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:38:53,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 7931 transitions. [2018-07-25 08:38:53,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:38:53,992 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:38:53,993 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:38:53,993 INFO L415 AbstractCegarLoop]: === Iteration 75 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:38:53,993 INFO L82 PathProgramCache]: Analyzing trace with hash -969552824, now seen corresponding path program 1 times [2018-07-25 08:38:53,993 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:38:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:38:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:38:54,002 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:38:54,002 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:38:54,003 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:38:54,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:38:54,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:38:54,003 INFO L87 Difference]: Start difference. First operand 1750 states and 7931 transitions. Second operand 8 states. [2018-07-25 08:38:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:38:59,779 INFO L93 Difference]: Finished difference Result 3626 states and 14920 transitions. [2018-07-25 08:38:59,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-25 08:38:59,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:38:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:38:59,787 INFO L225 Difference]: With dead ends: 3626 [2018-07-25 08:38:59,788 INFO L226 Difference]: Without dead ends: 3617 [2018-07-25 08:38:59,789 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2018-07-25 08:38:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2018-07-25 08:39:02,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 1819. [2018-07-25 08:39:02,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1819 states. [2018-07-25 08:39:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 8233 transitions. [2018-07-25 08:39:02,516 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 8233 transitions. Word has length 8 [2018-07-25 08:39:02,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:39:02,516 INFO L472 AbstractCegarLoop]: Abstraction has 1819 states and 8233 transitions. [2018-07-25 08:39:02,516 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:39:02,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 8233 transitions. [2018-07-25 08:39:02,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:39:02,517 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:39:02,517 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:39:02,518 INFO L415 AbstractCegarLoop]: === Iteration 76 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:39:02,518 INFO L82 PathProgramCache]: Analyzing trace with hash -982478745, now seen corresponding path program 1 times [2018-07-25 08:39:02,518 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:39:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:39:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:39:02,530 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:39:02,530 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:39:02,531 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:39:02,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:39:02,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:39:02,531 INFO L87 Difference]: Start difference. First operand 1819 states and 8233 transitions. Second operand 8 states. [2018-07-25 08:39:11,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:39:11,560 INFO L93 Difference]: Finished difference Result 4839 states and 19523 transitions. [2018-07-25 08:39:11,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-25 08:39:11,560 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:39:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:39:11,572 INFO L225 Difference]: With dead ends: 4839 [2018-07-25 08:39:11,572 INFO L226 Difference]: Without dead ends: 4830 [2018-07-25 08:39:11,573 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2018-07-25 08:39:11,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4830 states. [2018-07-25 08:39:14,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4830 to 1873. [2018-07-25 08:39:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1873 states. [2018-07-25 08:39:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 8515 transitions. [2018-07-25 08:39:14,444 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 8515 transitions. Word has length 8 [2018-07-25 08:39:14,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:39:14,444 INFO L472 AbstractCegarLoop]: Abstraction has 1873 states and 8515 transitions. [2018-07-25 08:39:14,445 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:39:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 8515 transitions. [2018-07-25 08:39:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:39:14,446 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:39:14,446 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:39:14,446 INFO L415 AbstractCegarLoop]: === Iteration 77 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:39:14,446 INFO L82 PathProgramCache]: Analyzing trace with hash -982478742, now seen corresponding path program 1 times [2018-07-25 08:39:14,446 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:39:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:39:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:39:14,457 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:39:14,457 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:39:14,457 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:39:14,458 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:39:14,458 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:39:14,458 INFO L87 Difference]: Start difference. First operand 1873 states and 8515 transitions. Second operand 8 states. [2018-07-25 08:39:21,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:39:21,743 INFO L93 Difference]: Finished difference Result 4115 states and 16897 transitions. [2018-07-25 08:39:21,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-25 08:39:21,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:39:21,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:39:21,755 INFO L225 Difference]: With dead ends: 4115 [2018-07-25 08:39:21,755 INFO L226 Difference]: Without dead ends: 4106 [2018-07-25 08:39:21,756 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2018-07-25 08:39:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4106 states. [2018-07-25 08:39:24,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4106 to 1907. [2018-07-25 08:39:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2018-07-25 08:39:24,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 8653 transitions. [2018-07-25 08:39:24,736 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 8653 transitions. Word has length 8 [2018-07-25 08:39:24,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:39:24,736 INFO L472 AbstractCegarLoop]: Abstraction has 1907 states and 8653 transitions. [2018-07-25 08:39:24,736 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:39:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 8653 transitions. [2018-07-25 08:39:24,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:39:24,738 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:39:24,738 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:39:24,738 INFO L415 AbstractCegarLoop]: === Iteration 78 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:39:24,738 INFO L82 PathProgramCache]: Analyzing trace with hash -982478739, now seen corresponding path program 1 times [2018-07-25 08:39:24,738 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:39:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:39:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:39:24,749 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:39:24,749 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:39:24,749 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:39:24,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:39:24,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:39:24,750 INFO L87 Difference]: Start difference. First operand 1907 states and 8653 transitions. Second operand 8 states. [2018-07-25 08:39:32,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:39:32,926 INFO L93 Difference]: Finished difference Result 4545 states and 18503 transitions. [2018-07-25 08:39:32,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-25 08:39:32,926 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:39:32,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:39:32,936 INFO L225 Difference]: With dead ends: 4545 [2018-07-25 08:39:32,936 INFO L226 Difference]: Without dead ends: 4536 [2018-07-25 08:39:32,937 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=282, Invalid=1124, Unknown=0, NotChecked=0, Total=1406 [2018-07-25 08:39:32,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2018-07-25 08:39:36,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 2006. [2018-07-25 08:39:36,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2018-07-25 08:39:36,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 9153 transitions. [2018-07-25 08:39:36,091 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 9153 transitions. Word has length 8 [2018-07-25 08:39:36,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:39:36,091 INFO L472 AbstractCegarLoop]: Abstraction has 2006 states and 9153 transitions. [2018-07-25 08:39:36,091 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:39:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 9153 transitions. [2018-07-25 08:39:36,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:39:36,092 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:39:36,092 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:39:36,092 INFO L415 AbstractCegarLoop]: === Iteration 79 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:39:36,092 INFO L82 PathProgramCache]: Analyzing trace with hash -982470592, now seen corresponding path program 1 times [2018-07-25 08:39:36,093 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:39:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:39:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:39:36,103 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:39:36,103 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:39:36,104 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:39:36,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:39:36,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:39:36,104 INFO L87 Difference]: Start difference. First operand 2006 states and 9153 transitions. Second operand 8 states. [2018-07-25 08:39:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:39:45,175 INFO L93 Difference]: Finished difference Result 4713 states and 19244 transitions. [2018-07-25 08:39:45,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-25 08:39:45,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:39:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:39:45,186 INFO L225 Difference]: With dead ends: 4713 [2018-07-25 08:39:45,186 INFO L226 Difference]: Without dead ends: 4704 [2018-07-25 08:39:45,187 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=323, Invalid=1399, Unknown=0, NotChecked=0, Total=1722 [2018-07-25 08:39:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2018-07-25 08:39:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 2044. [2018-07-25 08:39:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2018-07-25 08:39:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 9327 transitions. [2018-07-25 08:39:48,512 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 9327 transitions. Word has length 8 [2018-07-25 08:39:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:39:48,513 INFO L472 AbstractCegarLoop]: Abstraction has 2044 states and 9327 transitions. [2018-07-25 08:39:48,513 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:39:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 9327 transitions. [2018-07-25 08:39:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:39:48,514 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:39:48,514 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:39:48,514 INFO L415 AbstractCegarLoop]: === Iteration 80 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:39:48,514 INFO L82 PathProgramCache]: Analyzing trace with hash -982470589, now seen corresponding path program 1 times [2018-07-25 08:39:48,514 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:39:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:39:48,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:39:48,531 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:39:48,531 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:39:48,531 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:39:48,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:39:48,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:39:48,532 INFO L87 Difference]: Start difference. First operand 2044 states and 9327 transitions. Second operand 8 states. [2018-07-25 08:39:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:39:57,233 INFO L93 Difference]: Finished difference Result 4499 states and 18655 transitions. [2018-07-25 08:39:57,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-25 08:39:57,233 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:39:57,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:39:57,244 INFO L225 Difference]: With dead ends: 4499 [2018-07-25 08:39:57,244 INFO L226 Difference]: Without dead ends: 4490 [2018-07-25 08:39:57,245 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=209, Invalid=783, Unknown=0, NotChecked=0, Total=992 [2018-07-25 08:39:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2018-07-25 08:40:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 2041. [2018-07-25 08:40:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2041 states. [2018-07-25 08:40:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 9313 transitions. [2018-07-25 08:40:00,619 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 9313 transitions. Word has length 8 [2018-07-25 08:40:00,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:40:00,619 INFO L472 AbstractCegarLoop]: Abstraction has 2041 states and 9313 transitions. [2018-07-25 08:40:00,619 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:40:00,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 9313 transitions. [2018-07-25 08:40:00,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:40:00,620 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:40:00,620 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:40:00,620 INFO L415 AbstractCegarLoop]: === Iteration 81 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:40:00,621 INFO L82 PathProgramCache]: Analyzing trace with hash -982470586, now seen corresponding path program 1 times [2018-07-25 08:40:00,621 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:40:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:40:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:40:00,628 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:40:00,628 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:40:00,629 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:40:00,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:40:00,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:40:00,629 INFO L87 Difference]: Start difference. First operand 2041 states and 9313 transitions. Second operand 8 states. [2018-07-25 08:40:09,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:40:09,607 INFO L93 Difference]: Finished difference Result 4601 states and 18796 transitions. [2018-07-25 08:40:09,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-25 08:40:09,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:40:09,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:40:09,618 INFO L225 Difference]: With dead ends: 4601 [2018-07-25 08:40:09,618 INFO L226 Difference]: Without dead ends: 4598 [2018-07-25 08:40:09,619 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=279, Invalid=1127, Unknown=0, NotChecked=0, Total=1406 [2018-07-25 08:40:09,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2018-07-25 08:40:13,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 2032. [2018-07-25 08:40:13,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2032 states. [2018-07-25 08:40:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 9272 transitions. [2018-07-25 08:40:13,055 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 9272 transitions. Word has length 8 [2018-07-25 08:40:13,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:40:13,055 INFO L472 AbstractCegarLoop]: Abstraction has 2032 states and 9272 transitions. [2018-07-25 08:40:13,055 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:40:13,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 9272 transitions. [2018-07-25 08:40:13,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:40:13,056 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:40:13,056 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:40:13,056 INFO L415 AbstractCegarLoop]: === Iteration 82 === [productErr6ASSERT_VIOLATIONASSERT, productErr14ASSERT_VIOLATIONASSERT, productErr11ASSERT_VIOLATIONASSERT, productErr23ASSERT_VIOLATIONASSERT, productErr21ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr7ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr18ASSERT_VIOLATIONASSERT, productErr20ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT, productErr19ASSERT_VIOLATIONASSERT, productErr12ASSERT_VIOLATIONASSERT, productErr9ASSERT_VIOLATIONASSERT, productErr26ASSERT_VIOLATIONASSERT, productErr10ASSERT_VIOLATIONASSERT, productErr24ASSERT_VIOLATIONASSERT, productErr5ASSERT_VIOLATIONASSERT, productErr4ASSERT_VIOLATIONASSERT, productErr8ASSERT_VIOLATIONASSERT, productErr16ASSERT_VIOLATIONASSERT, productErr22ASSERT_VIOLATIONASSERT, productErr13ASSERT_VIOLATIONASSERT, productErr15ASSERT_VIOLATIONASSERT, productErr17ASSERT_VIOLATIONASSERT, productErr25ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:40:13,056 INFO L82 PathProgramCache]: Analyzing trace with hash -967288714, now seen corresponding path program 1 times [2018-07-25 08:40:13,057 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:40:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:40:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:40:13,067 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:40:13,067 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 08:40:13,067 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:40:13,067 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:40:13,067 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:40:13,068 INFO L87 Difference]: Start difference. First operand 2032 states and 9272 transitions. Second operand 8 states. [2018-07-25 08:40:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:40:21,370 INFO L93 Difference]: Finished difference Result 3979 states and 16777 transitions. [2018-07-25 08:40:21,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-25 08:40:21,370 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-25 08:40:21,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:40:21,380 INFO L225 Difference]: With dead ends: 3979 [2018-07-25 08:40:21,381 INFO L226 Difference]: Without dead ends: 3970 [2018-07-25 08:40:21,382 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2018-07-25 08:40:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. Received shutdown request... [2018-07-25 08:40:26,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 2715. [2018-07-25 08:40:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2715 states. [2018-07-25 08:40:26,215 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 08:40:26,220 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 08:40:26,220 INFO L202 PluginConnector]: Adding new model threadpooling_out3.mover.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:40:26 BoogieIcfgContainer [2018-07-25 08:40:26,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:40:26,221 INFO L168 Benchmark]: Toolchain (without parser) took 254708.98 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -645.2 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-25 08:40:26,222 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:40:26,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.53 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:40:26,223 INFO L168 Benchmark]: Boogie Preprocessor took 55.79 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:40:26,224 INFO L168 Benchmark]: RCFGBuilder took 652.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 08:40:26,224 INFO L168 Benchmark]: TraceAbstraction took 253934.59 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -666.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-25 08:40:26,227 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 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.53 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.79 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 652.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 253934.59 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -666.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 316]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 316). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 589]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 589). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 574]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 574). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 800]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 800). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 660]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 660). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 199]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 199). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 71). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 337]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 337). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 194]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 194). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 624]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 624). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 645]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 645). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 95). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 640]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 640). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 579]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 579). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 470]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 470). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 847]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 847). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 569]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 569). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 816]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 816). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 263]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 263). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 223]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 223). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 446]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 446). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 599]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 599). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 675). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 584]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 584). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 594]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 594). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 604]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 604). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 832]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 832). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 27 error locations. TIMEOUT Result, 253.8s OverallTime, 82 OverallIterations, 2 TraceHistogramMax, 173.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17978 SDtfs, 36260 SDslu, 26907 SDs, 0 SdLazy, 175667 SolverSat, 18183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1354 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4585 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2044occurred in iteration=79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 78.4s AutomataMinimizationTime, 82 MinimizatonAttempts, 48645 StatesRemovedByMinimization, 81 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 537 NumberOfCodeBlocks, 537 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 24002 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 82 InterpolantComputations, 82 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/threadpooling_out3.mover.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-40-26-239.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/threadpooling_out3.mover.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-40-26-239.csv Completed graceful shutdown