java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:55:18,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:55:18,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:55:18,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 07:55:18,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:55:18,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:55:18,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:55:18,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 07:55:18,643 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:55:18,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:55:18,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:55:18,644 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:55:18,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:55:18,645 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:55:18,645 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:55:18,645 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:55:18,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:55:18,646 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:55:18,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:55:18,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:55:18,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:55:18,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:55:18,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:55:18,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:55:18,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:55:18,648 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:55:18,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:55:18,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:55:18,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:55:18,649 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:55:18,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:55:18,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:55:18,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:55:18,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:55:18,650 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:55:18,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:55:18,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:55:18,650 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:55:18,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:55:18,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:55:18,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:55:18,696 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:55:18,696 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:55:18,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2019-09-10 07:55:18,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d10749b/9ab9cc2b1f25456cb87a0bfe877d27fe/FLAGfb1c88541 [2019-09-10 07:55:19,232 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:55:19,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2019-09-10 07:55:19,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d10749b/9ab9cc2b1f25456cb87a0bfe877d27fe/FLAGfb1c88541 [2019-09-10 07:55:19,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d10749b/9ab9cc2b1f25456cb87a0bfe877d27fe [2019-09-10 07:55:19,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:55:19,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:55:19,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:55:19,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:55:19,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:55:19,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:55:19" (1/1) ... [2019-09-10 07:55:19,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262753be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:19, skipping insertion in model container [2019-09-10 07:55:19,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:55:19" (1/1) ... [2019-09-10 07:55:19,599 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:55:19,659 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:55:20,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:55:20,161 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:55:20,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:55:20,295 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:55:20,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20 WrapperNode [2019-09-10 07:55:20,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:55:20,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:55:20,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:55:20,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:55:20,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... [2019-09-10 07:55:20,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... [2019-09-10 07:55:20,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... [2019-09-10 07:55:20,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... [2019-09-10 07:55:20,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... [2019-09-10 07:55:20,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... [2019-09-10 07:55:20,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... [2019-09-10 07:55:20,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:55:20,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:55:20,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:55:20,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:55:20,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:55:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:55:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:55:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:55:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:55:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:55:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:55:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:55:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:55:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:55:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:55:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:55:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:55:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:55:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-10 07:55:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2019-09-10 07:55:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:55:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:55:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:55:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:55:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:55:21,308 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:55:21,309 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:55:21,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:55:21 BoogieIcfgContainer [2019-09-10 07:55:21,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:55:21,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:55:21,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:55:21,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:55:21,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:55:19" (1/3) ... [2019-09-10 07:55:21,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7ae126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:55:21, skipping insertion in model container [2019-09-10 07:55:21,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:55:20" (2/3) ... [2019-09-10 07:55:21,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7ae126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:55:21, skipping insertion in model container [2019-09-10 07:55:21,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:55:21" (3/3) ... [2019-09-10 07:55:21,319 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2019-09-10 07:55:21,330 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:55:21,338 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 07:55:21,356 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 07:55:21,382 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:55:21,383 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:55:21,383 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:55:21,383 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:55:21,383 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:55:21,383 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:55:21,384 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:55:21,384 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:55:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-09-10 07:55:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:55:21,416 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:21,417 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:21,419 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:21,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:21,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1001395215, now seen corresponding path program 1 times [2019-09-10 07:55:21,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:21,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:21,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:21,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:21,480 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:21,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:21,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:55:21,980 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:21,986 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:55:22,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:55:22,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:55:22,006 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 3 states. [2019-09-10 07:55:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:22,143 INFO L93 Difference]: Finished difference Result 237 states and 392 transitions. [2019-09-10 07:55:22,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:55:22,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-10 07:55:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:22,168 INFO L225 Difference]: With dead ends: 237 [2019-09-10 07:55:22,169 INFO L226 Difference]: Without dead ends: 229 [2019-09-10 07:55:22,172 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:55:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-10 07:55:22,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2019-09-10 07:55:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-09-10 07:55:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 325 transitions. [2019-09-10 07:55:22,246 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 325 transitions. Word has length 80 [2019-09-10 07:55:22,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:22,247 INFO L475 AbstractCegarLoop]: Abstraction has 227 states and 325 transitions. [2019-09-10 07:55:22,247 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:55:22,247 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 325 transitions. [2019-09-10 07:55:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 07:55:22,252 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:22,253 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:22,253 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:22,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:22,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1695070945, now seen corresponding path program 1 times [2019-09-10 07:55:22,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:22,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:22,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:22,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:22,256 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:22,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:22,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:22,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:55:22,491 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:22,493 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:55:22,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:55:22,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:55:22,494 INFO L87 Difference]: Start difference. First operand 227 states and 325 transitions. Second operand 5 states. [2019-09-10 07:55:22,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:22,845 INFO L93 Difference]: Finished difference Result 380 states and 562 transitions. [2019-09-10 07:55:22,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:55:22,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2019-09-10 07:55:22,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:22,852 INFO L225 Difference]: With dead ends: 380 [2019-09-10 07:55:22,852 INFO L226 Difference]: Without dead ends: 380 [2019-09-10 07:55:22,853 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2019-09-10 07:55:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2019-09-10 07:55:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-10 07:55:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 561 transitions. [2019-09-10 07:55:22,891 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 561 transitions. Word has length 82 [2019-09-10 07:55:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:22,891 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 561 transitions. [2019-09-10 07:55:22,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:55:22,892 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 561 transitions. [2019-09-10 07:55:22,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 07:55:22,894 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:22,894 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:22,894 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:22,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:22,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1498664087, now seen corresponding path program 1 times [2019-09-10 07:55:22,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:22,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:22,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:22,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:22,898 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:23,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:23,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:55:23,041 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:23,041 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:55:23,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:55:23,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:55:23,042 INFO L87 Difference]: Start difference. First operand 378 states and 561 transitions. Second operand 5 states. [2019-09-10 07:55:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:23,266 INFO L93 Difference]: Finished difference Result 378 states and 556 transitions. [2019-09-10 07:55:23,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:55:23,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-09-10 07:55:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:23,269 INFO L225 Difference]: With dead ends: 378 [2019-09-10 07:55:23,269 INFO L226 Difference]: Without dead ends: 378 [2019-09-10 07:55:23,270 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:23,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-10 07:55:23,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-10 07:55:23,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-10 07:55:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 556 transitions. [2019-09-10 07:55:23,285 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 556 transitions. Word has length 83 [2019-09-10 07:55:23,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:23,285 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 556 transitions. [2019-09-10 07:55:23,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:55:23,286 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 556 transitions. [2019-09-10 07:55:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:55:23,289 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:23,289 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:23,289 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:23,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:23,290 INFO L82 PathProgramCache]: Analyzing trace with hash 565537234, now seen corresponding path program 1 times [2019-09-10 07:55:23,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:23,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:23,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:23,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:23,296 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:23,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:23,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:55:23,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:23,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:55:23,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:55:23,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:55:23,501 INFO L87 Difference]: Start difference. First operand 378 states and 556 transitions. Second operand 5 states. [2019-09-10 07:55:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:23,694 INFO L93 Difference]: Finished difference Result 378 states and 551 transitions. [2019-09-10 07:55:23,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:55:23,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2019-09-10 07:55:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:23,698 INFO L225 Difference]: With dead ends: 378 [2019-09-10 07:55:23,698 INFO L226 Difference]: Without dead ends: 378 [2019-09-10 07:55:23,698 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-10 07:55:23,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-10 07:55:23,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-10 07:55:23,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 551 transitions. [2019-09-10 07:55:23,711 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 551 transitions. Word has length 84 [2019-09-10 07:55:23,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:23,712 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 551 transitions. [2019-09-10 07:55:23,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:55:23,713 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 551 transitions. [2019-09-10 07:55:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-10 07:55:23,719 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:23,719 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:23,720 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:23,720 INFO L82 PathProgramCache]: Analyzing trace with hash 219817577, now seen corresponding path program 1 times [2019-09-10 07:55:23,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:23,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:23,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:23,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:23,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:23,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:23,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:55:23,845 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:23,846 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:55:23,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:55:23,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:55:23,847 INFO L87 Difference]: Start difference. First operand 378 states and 551 transitions. Second operand 5 states. [2019-09-10 07:55:24,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:24,015 INFO L93 Difference]: Finished difference Result 378 states and 546 transitions. [2019-09-10 07:55:24,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:55:24,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2019-09-10 07:55:24,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:24,021 INFO L225 Difference]: With dead ends: 378 [2019-09-10 07:55:24,021 INFO L226 Difference]: Without dead ends: 378 [2019-09-10 07:55:24,022 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:24,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-10 07:55:24,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-10 07:55:24,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-10 07:55:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 546 transitions. [2019-09-10 07:55:24,038 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 546 transitions. Word has length 85 [2019-09-10 07:55:24,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:24,041 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 546 transitions. [2019-09-10 07:55:24,041 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:55:24,042 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 546 transitions. [2019-09-10 07:55:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-09-10 07:55:24,046 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:24,046 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:24,047 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:24,047 INFO L82 PathProgramCache]: Analyzing trace with hash 693792033, now seen corresponding path program 1 times [2019-09-10 07:55:24,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:24,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:24,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:24,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:24,052 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:24,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:24,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:55:24,215 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:24,215 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:55:24,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:55:24,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:55:24,216 INFO L87 Difference]: Start difference. First operand 378 states and 546 transitions. Second operand 5 states. [2019-09-10 07:55:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:24,373 INFO L93 Difference]: Finished difference Result 378 states and 541 transitions. [2019-09-10 07:55:24,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:55:24,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2019-09-10 07:55:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:24,377 INFO L225 Difference]: With dead ends: 378 [2019-09-10 07:55:24,377 INFO L226 Difference]: Without dead ends: 378 [2019-09-10 07:55:24,378 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:24,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-10 07:55:24,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-10 07:55:24,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-10 07:55:24,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 541 transitions. [2019-09-10 07:55:24,392 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 541 transitions. Word has length 86 [2019-09-10 07:55:24,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:24,393 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 541 transitions. [2019-09-10 07:55:24,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:55:24,393 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 541 transitions. [2019-09-10 07:55:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:55:24,394 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:24,394 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:24,395 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:24,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:24,395 INFO L82 PathProgramCache]: Analyzing trace with hash -320560505, now seen corresponding path program 1 times [2019-09-10 07:55:24,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:24,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:24,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:24,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:24,397 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:24,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:24,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:55:24,551 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:24,551 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:55:24,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:55:24,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:24,552 INFO L87 Difference]: Start difference. First operand 378 states and 541 transitions. Second operand 7 states. [2019-09-10 07:55:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:24,725 INFO L93 Difference]: Finished difference Result 1428 states and 2113 transitions. [2019-09-10 07:55:24,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 07:55:24,726 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-10 07:55:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:24,735 INFO L225 Difference]: With dead ends: 1428 [2019-09-10 07:55:24,735 INFO L226 Difference]: Without dead ends: 1428 [2019-09-10 07:55:24,736 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:55:24,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2019-09-10 07:55:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 491. [2019-09-10 07:55:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-09-10 07:55:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 712 transitions. [2019-09-10 07:55:24,764 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 712 transitions. Word has length 87 [2019-09-10 07:55:24,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:24,765 INFO L475 AbstractCegarLoop]: Abstraction has 491 states and 712 transitions. [2019-09-10 07:55:24,765 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:55:24,765 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 712 transitions. [2019-09-10 07:55:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:55:24,766 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:24,766 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:24,767 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:24,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:24,768 INFO L82 PathProgramCache]: Analyzing trace with hash -411004634, now seen corresponding path program 1 times [2019-09-10 07:55:24,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:24,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:24,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:24,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:24,770 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:24,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:24,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:55:24,969 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:24,970 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:55:24,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:55:24,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:55:24,971 INFO L87 Difference]: Start difference. First operand 491 states and 712 transitions. Second operand 5 states. [2019-09-10 07:55:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:25,065 INFO L93 Difference]: Finished difference Result 891 states and 1311 transitions. [2019-09-10 07:55:25,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:55:25,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2019-09-10 07:55:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:25,071 INFO L225 Difference]: With dead ends: 891 [2019-09-10 07:55:25,071 INFO L226 Difference]: Without dead ends: 891 [2019-09-10 07:55:25,072 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:55:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2019-09-10 07:55:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 761. [2019-09-10 07:55:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2019-09-10 07:55:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1122 transitions. [2019-09-10 07:55:25,094 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1122 transitions. Word has length 87 [2019-09-10 07:55:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:25,095 INFO L475 AbstractCegarLoop]: Abstraction has 761 states and 1122 transitions. [2019-09-10 07:55:25,095 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:55:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1122 transitions. [2019-09-10 07:55:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:55:25,096 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:25,097 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:25,097 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:25,097 INFO L82 PathProgramCache]: Analyzing trace with hash -141069036, now seen corresponding path program 1 times [2019-09-10 07:55:25,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:25,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:25,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,099 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:25,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:25,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:55:25,161 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:25,161 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:55:25,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:55:25,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:55:25,162 INFO L87 Difference]: Start difference. First operand 761 states and 1122 transitions. Second operand 3 states. [2019-09-10 07:55:25,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:25,195 INFO L93 Difference]: Finished difference Result 1285 states and 1878 transitions. [2019-09-10 07:55:25,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:55:25,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2019-09-10 07:55:25,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:25,202 INFO L225 Difference]: With dead ends: 1285 [2019-09-10 07:55:25,202 INFO L226 Difference]: Without dead ends: 1285 [2019-09-10 07:55:25,203 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:55:25,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2019-09-10 07:55:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1283. [2019-09-10 07:55:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2019-09-10 07:55:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1877 transitions. [2019-09-10 07:55:25,235 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1877 transitions. Word has length 87 [2019-09-10 07:55:25,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:25,236 INFO L475 AbstractCegarLoop]: Abstraction has 1283 states and 1877 transitions. [2019-09-10 07:55:25,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:55:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1877 transitions. [2019-09-10 07:55:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:55:25,237 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:25,237 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:25,237 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:25,238 INFO L82 PathProgramCache]: Analyzing trace with hash 63922835, now seen corresponding path program 1 times [2019-09-10 07:55:25,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:25,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:25,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,241 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:25,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:25,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:55:25,306 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:25,307 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:55:25,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:55:25,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:55:25,309 INFO L87 Difference]: Start difference. First operand 1283 states and 1877 transitions. Second operand 3 states. [2019-09-10 07:55:25,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:25,376 INFO L93 Difference]: Finished difference Result 1507 states and 2198 transitions. [2019-09-10 07:55:25,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:55:25,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2019-09-10 07:55:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:25,392 INFO L225 Difference]: With dead ends: 1507 [2019-09-10 07:55:25,392 INFO L226 Difference]: Without dead ends: 1507 [2019-09-10 07:55:25,392 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:55:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2019-09-10 07:55:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1505. [2019-09-10 07:55:25,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2019-09-10 07:55:25,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2197 transitions. [2019-09-10 07:55:25,437 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2197 transitions. Word has length 87 [2019-09-10 07:55:25,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:25,437 INFO L475 AbstractCegarLoop]: Abstraction has 1505 states and 2197 transitions. [2019-09-10 07:55:25,438 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:55:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2197 transitions. [2019-09-10 07:55:25,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:55:25,439 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:25,439 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:25,439 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:25,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:25,440 INFO L82 PathProgramCache]: Analyzing trace with hash 2048530461, now seen corresponding path program 1 times [2019-09-10 07:55:25,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:25,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:25,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,442 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:25,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:25,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:55:25,619 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:25,619 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:55:25,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:55:25,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:25,620 INFO L87 Difference]: Start difference. First operand 1505 states and 2197 transitions. Second operand 7 states. [2019-09-10 07:55:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:25,803 INFO L93 Difference]: Finished difference Result 4933 states and 7241 transitions. [2019-09-10 07:55:25,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 07:55:25,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-10 07:55:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:25,829 INFO L225 Difference]: With dead ends: 4933 [2019-09-10 07:55:25,830 INFO L226 Difference]: Without dead ends: 4933 [2019-09-10 07:55:25,830 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:55:25,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2019-09-10 07:55:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 2187. [2019-09-10 07:55:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2187 states. [2019-09-10 07:55:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3199 transitions. [2019-09-10 07:55:25,964 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3199 transitions. Word has length 87 [2019-09-10 07:55:25,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:25,965 INFO L475 AbstractCegarLoop]: Abstraction has 2187 states and 3199 transitions. [2019-09-10 07:55:25,965 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:55:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3199 transitions. [2019-09-10 07:55:25,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:55:25,967 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:25,967 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:25,967 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:25,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:25,968 INFO L82 PathProgramCache]: Analyzing trace with hash -194393284, now seen corresponding path program 1 times [2019-09-10 07:55:25,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:25,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:25,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:25,970 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:26,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:26,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:55:26,079 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:26,079 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:55:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:55:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:55:26,081 INFO L87 Difference]: Start difference. First operand 2187 states and 3199 transitions. Second operand 5 states. [2019-09-10 07:55:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:26,183 INFO L93 Difference]: Finished difference Result 2755 states and 4027 transitions. [2019-09-10 07:55:26,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:55:26,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2019-09-10 07:55:26,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:26,197 INFO L225 Difference]: With dead ends: 2755 [2019-09-10 07:55:26,197 INFO L226 Difference]: Without dead ends: 2755 [2019-09-10 07:55:26,198 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:55:26,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2019-09-10 07:55:26,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2431. [2019-09-10 07:55:26,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2431 states. [2019-09-10 07:55:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 3561 transitions. [2019-09-10 07:55:26,260 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 3561 transitions. Word has length 87 [2019-09-10 07:55:26,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:26,261 INFO L475 AbstractCegarLoop]: Abstraction has 2431 states and 3561 transitions. [2019-09-10 07:55:26,261 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:55:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 3561 transitions. [2019-09-10 07:55:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:55:26,262 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:26,262 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:26,263 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:26,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:26,263 INFO L82 PathProgramCache]: Analyzing trace with hash 80594002, now seen corresponding path program 1 times [2019-09-10 07:55:26,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:26,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:26,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:26,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:26,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:26,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:26,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:55:26,394 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:26,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:55:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:55:26,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:55:26,396 INFO L87 Difference]: Start difference. First operand 2431 states and 3561 transitions. Second operand 7 states. [2019-09-10 07:55:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:26,607 INFO L93 Difference]: Finished difference Result 5878 states and 8640 transitions. [2019-09-10 07:55:26,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 07:55:26,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-10 07:55:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:26,634 INFO L225 Difference]: With dead ends: 5878 [2019-09-10 07:55:26,634 INFO L226 Difference]: Without dead ends: 5878 [2019-09-10 07:55:26,635 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:55:26,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2019-09-10 07:55:26,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 2893. [2019-09-10 07:55:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-10 07:55:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4242 transitions. [2019-09-10 07:55:26,763 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4242 transitions. Word has length 87 [2019-09-10 07:55:26,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:26,763 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4242 transitions. [2019-09-10 07:55:26,764 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:55:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4242 transitions. [2019-09-10 07:55:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-10 07:55:26,766 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:26,767 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:26,768 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:26,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:26,768 INFO L82 PathProgramCache]: Analyzing trace with hash 116389539, now seen corresponding path program 1 times [2019-09-10 07:55:26,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:26,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:26,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:26,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:26,770 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:27,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:27,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:55:27,054 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:27,055 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:55:27,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:55:27,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:55:27,056 INFO L87 Difference]: Start difference. First operand 2893 states and 4242 transitions. Second operand 9 states. [2019-09-10 07:55:27,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:27,599 INFO L93 Difference]: Finished difference Result 5570 states and 8177 transitions. [2019-09-10 07:55:27,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 07:55:27,599 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-09-10 07:55:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:27,626 INFO L225 Difference]: With dead ends: 5570 [2019-09-10 07:55:27,626 INFO L226 Difference]: Without dead ends: 5570 [2019-09-10 07:55:27,627 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2019-09-10 07:55:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5570 states. [2019-09-10 07:55:27,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5570 to 2893. [2019-09-10 07:55:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-10 07:55:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4241 transitions. [2019-09-10 07:55:27,710 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4241 transitions. Word has length 88 [2019-09-10 07:55:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:27,711 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4241 transitions. [2019-09-10 07:55:27,711 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:55:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4241 transitions. [2019-09-10 07:55:27,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 07:55:27,712 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:27,712 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:27,713 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:27,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:27,713 INFO L82 PathProgramCache]: Analyzing trace with hash 2104622850, now seen corresponding path program 1 times [2019-09-10 07:55:27,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:27,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:27,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:27,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:27,716 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:27,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:27,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:55:27,940 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:27,941 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:55:27,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:55:27,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:55:27,943 INFO L87 Difference]: Start difference. First operand 2893 states and 4241 transitions. Second operand 10 states. [2019-09-10 07:55:28,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:28,842 INFO L93 Difference]: Finished difference Result 5756 states and 8408 transitions. [2019-09-10 07:55:28,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 07:55:28,843 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2019-09-10 07:55:28,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:28,858 INFO L225 Difference]: With dead ends: 5756 [2019-09-10 07:55:28,858 INFO L226 Difference]: Without dead ends: 5756 [2019-09-10 07:55:28,858 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-10 07:55:28,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2019-09-10 07:55:28,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 2893. [2019-09-10 07:55:28,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-10 07:55:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4235 transitions. [2019-09-10 07:55:28,923 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4235 transitions. Word has length 89 [2019-09-10 07:55:28,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:28,924 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4235 transitions. [2019-09-10 07:55:28,924 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:55:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4235 transitions. [2019-09-10 07:55:28,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 07:55:28,925 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:28,925 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:28,926 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:28,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:28,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2064177225, now seen corresponding path program 1 times [2019-09-10 07:55:28,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:28,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:28,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:28,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:28,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:29,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:29,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:55:29,136 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:29,137 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:55:29,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:55:29,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:55:29,137 INFO L87 Difference]: Start difference. First operand 2893 states and 4235 transitions. Second operand 10 states. [2019-09-10 07:55:30,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:30,242 INFO L93 Difference]: Finished difference Result 5124 states and 7470 transitions. [2019-09-10 07:55:30,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 07:55:30,242 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2019-09-10 07:55:30,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:30,252 INFO L225 Difference]: With dead ends: 5124 [2019-09-10 07:55:30,252 INFO L226 Difference]: Without dead ends: 5124 [2019-09-10 07:55:30,253 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2019-09-10 07:55:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states. [2019-09-10 07:55:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 2893. [2019-09-10 07:55:30,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-10 07:55:30,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4232 transitions. [2019-09-10 07:55:30,315 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4232 transitions. Word has length 89 [2019-09-10 07:55:30,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:30,316 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4232 transitions. [2019-09-10 07:55:30,316 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:55:30,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4232 transitions. [2019-09-10 07:55:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-10 07:55:30,317 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:30,318 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:30,318 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:30,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:30,319 INFO L82 PathProgramCache]: Analyzing trace with hash 2120525072, now seen corresponding path program 1 times [2019-09-10 07:55:30,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:30,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:30,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:30,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:30,321 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:30,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:30,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:55:30,560 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:30,563 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:55:30,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:55:30,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:55:30,564 INFO L87 Difference]: Start difference. First operand 2893 states and 4232 transitions. Second operand 10 states. [2019-09-10 07:55:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:31,670 INFO L93 Difference]: Finished difference Result 5741 states and 8369 transitions. [2019-09-10 07:55:31,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 07:55:31,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2019-09-10 07:55:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:31,682 INFO L225 Difference]: With dead ends: 5741 [2019-09-10 07:55:31,683 INFO L226 Difference]: Without dead ends: 5741 [2019-09-10 07:55:31,683 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-10 07:55:31,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2019-09-10 07:55:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 2893. [2019-09-10 07:55:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-10 07:55:31,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4223 transitions. [2019-09-10 07:55:31,762 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4223 transitions. Word has length 90 [2019-09-10 07:55:31,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:31,762 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4223 transitions. [2019-09-10 07:55:31,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:55:31,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4223 transitions. [2019-09-10 07:55:31,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-09-10 07:55:31,765 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:31,765 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:31,766 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:31,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:31,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1590865908, now seen corresponding path program 1 times [2019-09-10 07:55:31,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:31,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:31,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:31,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:31,769 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:32,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:32,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:32,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:55:32,049 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:32,049 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:55:32,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:55:32,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:55:32,050 INFO L87 Difference]: Start difference. First operand 2893 states and 4223 transitions. Second operand 10 states. [2019-09-10 07:55:33,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:33,064 INFO L93 Difference]: Finished difference Result 5711 states and 8307 transitions. [2019-09-10 07:55:33,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 07:55:33,064 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2019-09-10 07:55:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:33,075 INFO L225 Difference]: With dead ends: 5711 [2019-09-10 07:55:33,075 INFO L226 Difference]: Without dead ends: 5711 [2019-09-10 07:55:33,076 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-10 07:55:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2019-09-10 07:55:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 2893. [2019-09-10 07:55:33,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-10 07:55:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4212 transitions. [2019-09-10 07:55:33,139 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4212 transitions. Word has length 91 [2019-09-10 07:55:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:33,139 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4212 transitions. [2019-09-10 07:55:33,140 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:55:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4212 transitions. [2019-09-10 07:55:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 07:55:33,141 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:33,141 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:33,142 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:33,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:33,142 INFO L82 PathProgramCache]: Analyzing trace with hash 142408710, now seen corresponding path program 1 times [2019-09-10 07:55:33,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:33,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:33,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:33,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:33,144 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:33,922 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2019-09-10 07:55:34,561 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-10 07:55:34,846 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:55:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:36,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:36,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-09-10 07:55:36,072 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:36,072 INFO L454 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-09-10 07:55:36,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-09-10 07:55:36,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:55:36,073 INFO L87 Difference]: Start difference. First operand 2893 states and 4212 transitions. Second operand 31 states. [2019-09-10 07:55:36,262 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2019-09-10 07:55:37,358 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2019-09-10 07:55:37,792 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-10 07:55:38,118 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2019-09-10 07:55:38,573 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2019-09-10 07:55:39,076 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2019-09-10 07:55:39,741 WARN L188 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 121 [2019-09-10 07:55:40,395 WARN L188 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 131 [2019-09-10 07:55:41,240 WARN L188 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 158 [2019-09-10 07:55:42,241 WARN L188 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 171 [2019-09-10 07:55:42,576 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2019-09-10 07:55:42,802 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2019-09-10 07:55:43,293 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2019-09-10 07:55:43,730 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-09-10 07:55:44,134 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2019-09-10 07:55:44,551 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2019-09-10 07:55:45,262 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-10 07:55:45,808 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-10 07:55:46,590 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2019-09-10 07:55:47,122 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2019-09-10 07:55:52,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:52,011 INFO L93 Difference]: Finished difference Result 9742 states and 14249 transitions. [2019-09-10 07:55:52,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-09-10 07:55:52,011 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 92 [2019-09-10 07:55:52,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:52,026 INFO L225 Difference]: With dead ends: 9742 [2019-09-10 07:55:52,026 INFO L226 Difference]: Without dead ends: 9742 [2019-09-10 07:55:52,028 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=770, Invalid=3390, Unknown=0, NotChecked=0, Total=4160 [2019-09-10 07:55:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9742 states. [2019-09-10 07:55:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9742 to 2928. [2019-09-10 07:55:52,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2019-09-10 07:55:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 4253 transitions. [2019-09-10 07:55:52,126 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 4253 transitions. Word has length 92 [2019-09-10 07:55:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:52,126 INFO L475 AbstractCegarLoop]: Abstraction has 2928 states and 4253 transitions. [2019-09-10 07:55:52,126 INFO L476 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-09-10 07:55:52,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 4253 transitions. [2019-09-10 07:55:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 07:55:52,129 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:52,129 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:52,130 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:52,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:52,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1104384956, now seen corresponding path program 1 times [2019-09-10 07:55:52,130 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:52,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:52,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:52,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:52,132 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:53,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:53,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 07:55:53,100 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:53,101 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:55:53,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:55:53,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:55:53,102 INFO L87 Difference]: Start difference. First operand 2928 states and 4253 transitions. Second operand 19 states. [2019-09-10 07:55:53,687 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-10 07:55:53,895 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 07:55:54,213 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:55:54,542 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2019-09-10 07:55:54,737 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-10 07:55:55,064 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-10 07:55:55,364 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-10 07:55:55,547 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-09-10 07:55:55,812 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-09-10 07:55:56,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:55:56,991 INFO L93 Difference]: Finished difference Result 13071 states and 19151 transitions. [2019-09-10 07:55:56,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 07:55:56,992 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 92 [2019-09-10 07:55:56,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:55:57,013 INFO L225 Difference]: With dead ends: 13071 [2019-09-10 07:55:57,013 INFO L226 Difference]: Without dead ends: 13071 [2019-09-10 07:55:57,014 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 07:55:57,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13071 states. [2019-09-10 07:55:57,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13071 to 2925. [2019-09-10 07:55:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2019-09-10 07:55:57,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4243 transitions. [2019-09-10 07:55:57,121 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4243 transitions. Word has length 92 [2019-09-10 07:55:57,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:55:57,122 INFO L475 AbstractCegarLoop]: Abstraction has 2925 states and 4243 transitions. [2019-09-10 07:55:57,122 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:55:57,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4243 transitions. [2019-09-10 07:55:57,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 07:55:57,123 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:55:57,124 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:55:57,124 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:55:57,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:55:57,124 INFO L82 PathProgramCache]: Analyzing trace with hash -305465437, now seen corresponding path program 1 times [2019-09-10 07:55:57,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:55:57,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:57,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:55:57,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:55:57,128 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:55:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:55:58,201 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:55:58,374 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 07:55:58,566 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-10 07:55:59,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:55:59,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:55:59,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-09-10 07:55:59,583 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:55:59,584 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-10 07:55:59,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-10 07:55:59,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-09-10 07:55:59,585 INFO L87 Difference]: Start difference. First operand 2925 states and 4243 transitions. Second operand 29 states. [2019-09-10 07:56:00,731 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-09-10 07:56:01,062 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 07:56:01,328 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-10 07:56:01,708 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 07:56:02,108 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2019-09-10 07:56:02,618 WARN L188 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 110 [2019-09-10 07:56:03,160 WARN L188 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 117 [2019-09-10 07:56:03,837 WARN L188 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 130 [2019-09-10 07:56:04,102 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:56:04,373 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:56:04,634 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:56:05,000 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:56:05,376 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:56:05,774 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:56:06,042 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:56:06,662 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 07:56:06,991 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 07:56:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:11,406 INFO L93 Difference]: Finished difference Result 9737 states and 14232 transitions. [2019-09-10 07:56:11,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-10 07:56:11,407 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 92 [2019-09-10 07:56:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:11,416 INFO L225 Difference]: With dead ends: 9737 [2019-09-10 07:56:11,416 INFO L226 Difference]: Without dead ends: 9737 [2019-09-10 07:56:11,417 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=676, Invalid=2516, Unknown=0, NotChecked=0, Total=3192 [2019-09-10 07:56:11,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9737 states. [2019-09-10 07:56:11,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9737 to 2940. [2019-09-10 07:56:11,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2940 states. [2019-09-10 07:56:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 4260 transitions. [2019-09-10 07:56:11,529 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 4260 transitions. Word has length 92 [2019-09-10 07:56:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:11,529 INFO L475 AbstractCegarLoop]: Abstraction has 2940 states and 4260 transitions. [2019-09-10 07:56:11,530 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-10 07:56:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 4260 transitions. [2019-09-10 07:56:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 07:56:11,532 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:11,532 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:11,533 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1864540635, now seen corresponding path program 1 times [2019-09-10 07:56:11,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:11,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:11,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:11,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:11,537 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:12,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:12,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:12,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 07:56:12,582 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:12,582 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:56:12,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:56:12,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:56:12,583 INFO L87 Difference]: Start difference. First operand 2940 states and 4260 transitions. Second operand 19 states. [2019-09-10 07:56:13,142 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2019-09-10 07:56:13,328 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:56:13,620 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:56:14,047 WARN L188 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 07:56:14,213 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 07:56:14,520 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:56:14,766 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 07:56:14,969 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 07:56:15,186 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 07:56:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:16,174 INFO L93 Difference]: Finished difference Result 11776 states and 17226 transitions. [2019-09-10 07:56:16,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 07:56:16,177 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 92 [2019-09-10 07:56:16,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:16,188 INFO L225 Difference]: With dead ends: 11776 [2019-09-10 07:56:16,188 INFO L226 Difference]: Without dead ends: 11776 [2019-09-10 07:56:16,189 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 07:56:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11776 states. [2019-09-10 07:56:16,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11776 to 2935. [2019-09-10 07:56:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2935 states. [2019-09-10 07:56:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 4247 transitions. [2019-09-10 07:56:16,289 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 4247 transitions. Word has length 92 [2019-09-10 07:56:16,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:16,290 INFO L475 AbstractCegarLoop]: Abstraction has 2935 states and 4247 transitions. [2019-09-10 07:56:16,290 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:56:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 4247 transitions. [2019-09-10 07:56:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 07:56:16,291 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:16,292 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:16,292 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:16,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1961118974, now seen corresponding path program 1 times [2019-09-10 07:56:16,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:16,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:16,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:16,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:16,294 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:17,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:17,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 07:56:17,211 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:17,212 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:56:17,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:56:17,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:56:17,212 INFO L87 Difference]: Start difference. First operand 2935 states and 4247 transitions. Second operand 19 states. [2019-09-10 07:56:17,775 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-10 07:56:17,960 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 07:56:18,269 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:56:18,605 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2019-09-10 07:56:18,786 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:56:19,159 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2019-09-10 07:56:19,389 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-10 07:56:19,618 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-10 07:56:19,837 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-10 07:56:20,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:20,383 INFO L93 Difference]: Finished difference Result 10118 states and 14791 transitions. [2019-09-10 07:56:20,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 07:56:20,384 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 93 [2019-09-10 07:56:20,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:20,393 INFO L225 Difference]: With dead ends: 10118 [2019-09-10 07:56:20,393 INFO L226 Difference]: Without dead ends: 10118 [2019-09-10 07:56:20,394 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 07:56:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2019-09-10 07:56:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 2907. [2019-09-10 07:56:20,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2907 states. [2019-09-10 07:56:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 4209 transitions. [2019-09-10 07:56:20,467 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 4209 transitions. Word has length 93 [2019-09-10 07:56:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:20,468 INFO L475 AbstractCegarLoop]: Abstraction has 2907 states and 4209 transitions. [2019-09-10 07:56:20,468 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:56:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 4209 transitions. [2019-09-10 07:56:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 07:56:20,469 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:20,469 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:20,470 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:20,470 INFO L82 PathProgramCache]: Analyzing trace with hash 701999135, now seen corresponding path program 1 times [2019-09-10 07:56:20,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:20,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:20,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:20,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:20,472 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:21,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:21,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 07:56:21,077 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:21,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 07:56:21,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 07:56:21,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:56:21,078 INFO L87 Difference]: Start difference. First operand 2907 states and 4209 transitions. Second operand 14 states. [2019-09-10 07:56:21,537 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2019-09-10 07:56:21,687 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:56:21,847 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:56:22,160 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-10 07:56:22,372 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 07:56:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:22,580 INFO L93 Difference]: Finished difference Result 7177 states and 10468 transitions. [2019-09-10 07:56:22,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 07:56:22,580 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 93 [2019-09-10 07:56:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:22,588 INFO L225 Difference]: With dead ends: 7177 [2019-09-10 07:56:22,588 INFO L226 Difference]: Without dead ends: 7177 [2019-09-10 07:56:22,589 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2019-09-10 07:56:22,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7177 states. [2019-09-10 07:56:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7177 to 2860. [2019-09-10 07:56:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2019-09-10 07:56:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4149 transitions. [2019-09-10 07:56:22,635 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4149 transitions. Word has length 93 [2019-09-10 07:56:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:22,635 INFO L475 AbstractCegarLoop]: Abstraction has 2860 states and 4149 transitions. [2019-09-10 07:56:22,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 07:56:22,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4149 transitions. [2019-09-10 07:56:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 07:56:22,636 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:22,636 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:22,636 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:22,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1241325465, now seen corresponding path program 1 times [2019-09-10 07:56:22,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:22,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:22,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:22,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:22,638 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:23,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:23,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 07:56:23,338 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:23,340 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 07:56:23,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 07:56:23,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-10 07:56:23,341 INFO L87 Difference]: Start difference. First operand 2860 states and 4149 transitions. Second operand 13 states. [2019-09-10 07:56:23,903 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-10 07:56:24,060 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-10 07:56:24,356 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2019-09-10 07:56:24,573 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-10 07:56:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:24,886 INFO L93 Difference]: Finished difference Result 10882 states and 15945 transitions. [2019-09-10 07:56:24,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:56:24,887 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2019-09-10 07:56:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:24,903 INFO L225 Difference]: With dead ends: 10882 [2019-09-10 07:56:24,903 INFO L226 Difference]: Without dead ends: 10882 [2019-09-10 07:56:24,904 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2019-09-10 07:56:24,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2019-09-10 07:56:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 2856. [2019-09-10 07:56:25,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2856 states. [2019-09-10 07:56:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 4139 transitions. [2019-09-10 07:56:25,028 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 4139 transitions. Word has length 93 [2019-09-10 07:56:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:25,029 INFO L475 AbstractCegarLoop]: Abstraction has 2856 states and 4139 transitions. [2019-09-10 07:56:25,029 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 07:56:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 4139 transitions. [2019-09-10 07:56:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 07:56:25,030 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:25,030 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:25,031 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:25,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:25,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1428521857, now seen corresponding path program 1 times [2019-09-10 07:56:25,031 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:25,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:25,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:25,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:25,039 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:25,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:25,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-10 07:56:25,973 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:25,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:56:25,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:56:25,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-09-10 07:56:25,974 INFO L87 Difference]: Start difference. First operand 2856 states and 4139 transitions. Second operand 17 states. [2019-09-10 07:56:26,775 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 49 [2019-09-10 07:56:26,941 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:56:27,114 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:56:27,249 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:56:28,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:28,492 INFO L93 Difference]: Finished difference Result 9395 states and 13765 transitions. [2019-09-10 07:56:28,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-10 07:56:28,492 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 93 [2019-09-10 07:56:28,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:28,501 INFO L225 Difference]: With dead ends: 9395 [2019-09-10 07:56:28,501 INFO L226 Difference]: Without dead ends: 9395 [2019-09-10 07:56:28,502 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2019-09-10 07:56:28,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2019-09-10 07:56:28,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 2847. [2019-09-10 07:56:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2847 states. [2019-09-10 07:56:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 4128 transitions. [2019-09-10 07:56:28,566 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 4128 transitions. Word has length 93 [2019-09-10 07:56:28,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:28,567 INFO L475 AbstractCegarLoop]: Abstraction has 2847 states and 4128 transitions. [2019-09-10 07:56:28,567 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:56:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 4128 transitions. [2019-09-10 07:56:28,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 07:56:28,568 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:28,568 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:28,568 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:28,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:28,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1704891763, now seen corresponding path program 1 times [2019-09-10 07:56:28,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:28,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:28,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:28,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:28,570 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:28,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:28,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 07:56:28,638 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:28,639 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 07:56:28,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 07:56:28,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 07:56:28,639 INFO L87 Difference]: Start difference. First operand 2847 states and 4128 transitions. Second operand 4 states. [2019-09-10 07:56:28,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:28,673 INFO L93 Difference]: Finished difference Result 4020 states and 5829 transitions. [2019-09-10 07:56:28,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 07:56:28,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-10 07:56:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:28,679 INFO L225 Difference]: With dead ends: 4020 [2019-09-10 07:56:28,679 INFO L226 Difference]: Without dead ends: 4020 [2019-09-10 07:56:28,679 INFO L628 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 [2019-09-10 07:56:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2019-09-10 07:56:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 4018. [2019-09-10 07:56:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4018 states. [2019-09-10 07:56:28,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5828 transitions. [2019-09-10 07:56:28,728 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5828 transitions. Word has length 93 [2019-09-10 07:56:28,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:28,728 INFO L475 AbstractCegarLoop]: Abstraction has 4018 states and 5828 transitions. [2019-09-10 07:56:28,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 07:56:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5828 transitions. [2019-09-10 07:56:28,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 07:56:28,729 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:28,730 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:28,730 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:28,730 INFO L82 PathProgramCache]: Analyzing trace with hash -726766473, now seen corresponding path program 1 times [2019-09-10 07:56:28,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:28,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:28,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:28,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:28,732 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:28,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:28,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:56:28,808 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:28,808 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:56:28,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:56:28,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:56:28,809 INFO L87 Difference]: Start difference. First operand 4018 states and 5828 transitions. Second operand 5 states. [2019-09-10 07:56:28,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:28,864 INFO L93 Difference]: Finished difference Result 6268 states and 9067 transitions. [2019-09-10 07:56:28,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:56:28,865 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2019-09-10 07:56:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:28,872 INFO L225 Difference]: With dead ends: 6268 [2019-09-10 07:56:28,872 INFO L226 Difference]: Without dead ends: 6268 [2019-09-10 07:56:28,872 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:56:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2019-09-10 07:56:28,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 4042. [2019-09-10 07:56:28,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4042 states. [2019-09-10 07:56:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 5833 transitions. [2019-09-10 07:56:28,936 INFO L78 Accepts]: Start accepts. Automaton has 4042 states and 5833 transitions. Word has length 93 [2019-09-10 07:56:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:28,936 INFO L475 AbstractCegarLoop]: Abstraction has 4042 states and 5833 transitions. [2019-09-10 07:56:28,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:56:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4042 states and 5833 transitions. [2019-09-10 07:56:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 07:56:28,937 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:28,938 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:28,938 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:28,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:28,938 INFO L82 PathProgramCache]: Analyzing trace with hash 248993705, now seen corresponding path program 1 times [2019-09-10 07:56:28,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:28,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:28,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:28,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:28,941 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:29,732 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 33 [2019-09-10 07:56:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:30,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:30,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-10 07:56:30,022 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:30,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:56:30,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:56:30,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2019-09-10 07:56:30,024 INFO L87 Difference]: Start difference. First operand 4042 states and 5833 transitions. Second operand 17 states. [2019-09-10 07:56:30,766 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-09-10 07:56:31,245 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:56:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:32,358 INFO L93 Difference]: Finished difference Result 13398 states and 19483 transitions. [2019-09-10 07:56:32,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-10 07:56:32,359 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 94 [2019-09-10 07:56:32,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:32,378 INFO L225 Difference]: With dead ends: 13398 [2019-09-10 07:56:32,378 INFO L226 Difference]: Without dead ends: 13394 [2019-09-10 07:56:32,379 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2019-09-10 07:56:32,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13394 states. [2019-09-10 07:56:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13394 to 4036. [2019-09-10 07:56:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4036 states. [2019-09-10 07:56:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5824 transitions. [2019-09-10 07:56:32,499 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5824 transitions. Word has length 94 [2019-09-10 07:56:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:32,499 INFO L475 AbstractCegarLoop]: Abstraction has 4036 states and 5824 transitions. [2019-09-10 07:56:32,499 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:56:32,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5824 transitions. [2019-09-10 07:56:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 07:56:32,500 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:32,500 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:32,501 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:32,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:32,501 INFO L82 PathProgramCache]: Analyzing trace with hash -2108767036, now seen corresponding path program 1 times [2019-09-10 07:56:32,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:32,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:32,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:32,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:32,503 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:34,164 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 07:56:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:34,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:34,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2019-09-10 07:56:34,975 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:34,976 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-10 07:56:34,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-10 07:56:34,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=897, Unknown=0, NotChecked=0, Total=992 [2019-09-10 07:56:34,976 INFO L87 Difference]: Start difference. First operand 4036 states and 5824 transitions. Second operand 32 states. [2019-09-10 07:56:35,155 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:56:36,009 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-10 07:56:36,357 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 07:56:36,547 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-10 07:56:36,820 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:56:37,145 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 07:56:37,582 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-10 07:56:38,027 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-10 07:56:38,499 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2019-09-10 07:56:39,149 WARN L188 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2019-09-10 07:56:39,400 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:56:39,664 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:56:39,948 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:56:40,134 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-10 07:56:40,371 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2019-09-10 07:56:40,539 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-10 07:56:40,806 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:56:41,089 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:56:41,346 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:56:41,768 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:56:42,131 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:56:45,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:45,604 INFO L93 Difference]: Finished difference Result 14668 states and 21271 transitions. [2019-09-10 07:56:45,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 07:56:45,605 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 94 [2019-09-10 07:56:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:45,621 INFO L225 Difference]: With dead ends: 14668 [2019-09-10 07:56:45,621 INFO L226 Difference]: Without dead ends: 14664 [2019-09-10 07:56:45,622 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=786, Invalid=3246, Unknown=0, NotChecked=0, Total=4032 [2019-09-10 07:56:45,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14664 states. [2019-09-10 07:56:45,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14664 to 4040. [2019-09-10 07:56:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4040 states. [2019-09-10 07:56:45,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5828 transitions. [2019-09-10 07:56:45,739 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5828 transitions. Word has length 94 [2019-09-10 07:56:45,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:45,740 INFO L475 AbstractCegarLoop]: Abstraction has 4040 states and 5828 transitions. [2019-09-10 07:56:45,740 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-10 07:56:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5828 transitions. [2019-09-10 07:56:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 07:56:45,743 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:45,743 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:45,744 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:45,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:45,744 INFO L82 PathProgramCache]: Analyzing trace with hash -722644151, now seen corresponding path program 1 times [2019-09-10 07:56:45,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:45,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:45,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:45,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:45,747 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:46,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:46,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:46,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 07:56:46,458 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:46,458 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 07:56:46,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 07:56:46,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:56:46,459 INFO L87 Difference]: Start difference. First operand 4040 states and 5828 transitions. Second operand 14 states. [2019-09-10 07:56:47,056 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:56:47,312 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:56:47,584 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:56:48,014 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:56:48,339 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:56:48,567 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:56:49,084 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-09-10 07:56:49,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:49,212 INFO L93 Difference]: Finished difference Result 23431 states and 34079 transitions. [2019-09-10 07:56:49,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 07:56:49,213 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 94 [2019-09-10 07:56:49,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:49,233 INFO L225 Difference]: With dead ends: 23431 [2019-09-10 07:56:49,234 INFO L226 Difference]: Without dead ends: 23431 [2019-09-10 07:56:49,234 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:56:49,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23431 states. [2019-09-10 07:56:49,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23431 to 4008. [2019-09-10 07:56:49,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4008 states. [2019-09-10 07:56:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5791 transitions. [2019-09-10 07:56:49,414 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5791 transitions. Word has length 94 [2019-09-10 07:56:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:49,415 INFO L475 AbstractCegarLoop]: Abstraction has 4008 states and 5791 transitions. [2019-09-10 07:56:49,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 07:56:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5791 transitions. [2019-09-10 07:56:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 07:56:49,415 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:49,416 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:49,416 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:49,416 INFO L82 PathProgramCache]: Analyzing trace with hash -582714908, now seen corresponding path program 1 times [2019-09-10 07:56:49,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:49,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:49,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:49,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:49,418 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:49,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:49,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 07:56:49,923 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:49,923 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 07:56:49,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 07:56:49,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-09-10 07:56:49,925 INFO L87 Difference]: Start difference. First operand 4008 states and 5791 transitions. Second operand 12 states. [2019-09-10 07:56:50,327 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-10 07:56:50,472 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:56:50,631 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:56:50,943 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:56:51,169 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 07:56:51,311 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:56:51,746 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-10 07:56:51,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:51,836 INFO L93 Difference]: Finished difference Result 19497 states and 28362 transitions. [2019-09-10 07:56:51,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 07:56:51,837 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-09-10 07:56:51,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:51,857 INFO L225 Difference]: With dead ends: 19497 [2019-09-10 07:56:51,857 INFO L226 Difference]: Without dead ends: 19497 [2019-09-10 07:56:51,857 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2019-09-10 07:56:51,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19497 states. [2019-09-10 07:56:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19497 to 3996. [2019-09-10 07:56:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3996 states. [2019-09-10 07:56:51,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3996 states to 3996 states and 5777 transitions. [2019-09-10 07:56:51,988 INFO L78 Accepts]: Start accepts. Automaton has 3996 states and 5777 transitions. Word has length 94 [2019-09-10 07:56:51,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:51,988 INFO L475 AbstractCegarLoop]: Abstraction has 3996 states and 5777 transitions. [2019-09-10 07:56:51,988 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 07:56:51,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3996 states and 5777 transitions. [2019-09-10 07:56:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-10 07:56:51,989 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:51,989 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:51,989 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:51,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:51,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1711227384, now seen corresponding path program 1 times [2019-09-10 07:56:51,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:51,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:51,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:51,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:51,991 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:52,522 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-10 07:56:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:52,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:52,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 07:56:52,818 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:52,818 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 07:56:52,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 07:56:52,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:56:52,819 INFO L87 Difference]: Start difference. First operand 3996 states and 5777 transitions. Second operand 16 states. [2019-09-10 07:56:53,320 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 07:56:54,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:54,087 INFO L93 Difference]: Finished difference Result 8460 states and 12257 transitions. [2019-09-10 07:56:54,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 07:56:54,087 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-09-10 07:56:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:54,094 INFO L225 Difference]: With dead ends: 8460 [2019-09-10 07:56:54,095 INFO L226 Difference]: Without dead ends: 8437 [2019-09-10 07:56:54,095 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2019-09-10 07:56:54,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2019-09-10 07:56:54,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 3865. [2019-09-10 07:56:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3865 states. [2019-09-10 07:56:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 5597 transitions. [2019-09-10 07:56:54,149 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 5597 transitions. Word has length 95 [2019-09-10 07:56:54,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:54,149 INFO L475 AbstractCegarLoop]: Abstraction has 3865 states and 5597 transitions. [2019-09-10 07:56:54,149 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 07:56:54,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 5597 transitions. [2019-09-10 07:56:54,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-09-10 07:56:54,152 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:54,152 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:54,153 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:54,153 INFO L82 PathProgramCache]: Analyzing trace with hash -246045565, now seen corresponding path program 1 times [2019-09-10 07:56:54,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:54,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:54,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:54,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:54,154 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:54,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:54,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:56:54,212 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:54,212 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:56:54,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:56:54,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:54,213 INFO L87 Difference]: Start difference. First operand 3865 states and 5597 transitions. Second operand 3 states. [2019-09-10 07:56:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:54,249 INFO L93 Difference]: Finished difference Result 7347 states and 10530 transitions. [2019-09-10 07:56:54,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:56:54,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-09-10 07:56:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:54,258 INFO L225 Difference]: With dead ends: 7347 [2019-09-10 07:56:54,259 INFO L226 Difference]: Without dead ends: 7347 [2019-09-10 07:56:54,259 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7347 states. [2019-09-10 07:56:54,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7347 to 7073. [2019-09-10 07:56:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7073 states. [2019-09-10 07:56:54,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7073 states to 7073 states and 10189 transitions. [2019-09-10 07:56:54,340 INFO L78 Accepts]: Start accepts. Automaton has 7073 states and 10189 transitions. Word has length 121 [2019-09-10 07:56:54,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:54,341 INFO L475 AbstractCegarLoop]: Abstraction has 7073 states and 10189 transitions. [2019-09-10 07:56:54,341 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:56:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand 7073 states and 10189 transitions. [2019-09-10 07:56:54,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-09-10 07:56:54,343 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:54,344 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:54,344 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:54,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:54,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1023594389, now seen corresponding path program 1 times [2019-09-10 07:56:54,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:54,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:54,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:54,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:54,346 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:54,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:54,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:54,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:56:54,408 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:54,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:56:54,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:56:54,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:54,409 INFO L87 Difference]: Start difference. First operand 7073 states and 10189 transitions. Second operand 3 states. [2019-09-10 07:56:54,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:54,454 INFO L93 Difference]: Finished difference Result 13491 states and 19170 transitions. [2019-09-10 07:56:54,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:56:54,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-09-10 07:56:54,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:54,469 INFO L225 Difference]: With dead ends: 13491 [2019-09-10 07:56:54,470 INFO L226 Difference]: Without dead ends: 13491 [2019-09-10 07:56:54,470 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13491 states. [2019-09-10 07:56:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13491 to 12945. [2019-09-10 07:56:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12945 states. [2019-09-10 07:56:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12945 states to 12945 states and 18489 transitions. [2019-09-10 07:56:54,609 INFO L78 Accepts]: Start accepts. Automaton has 12945 states and 18489 transitions. Word has length 122 [2019-09-10 07:56:54,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:54,610 INFO L475 AbstractCegarLoop]: Abstraction has 12945 states and 18489 transitions. [2019-09-10 07:56:54,610 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:56:54,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12945 states and 18489 transitions. [2019-09-10 07:56:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-10 07:56:54,612 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:54,612 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:54,612 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:54,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:54,613 INFO L82 PathProgramCache]: Analyzing trace with hash 404485041, now seen corresponding path program 1 times [2019-09-10 07:56:54,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:54,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:54,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:54,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:54,614 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:54,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:54,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:56:54,673 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:54,674 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:56:54,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:56:54,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:54,674 INFO L87 Difference]: Start difference. First operand 12945 states and 18489 transitions. Second operand 3 states. [2019-09-10 07:56:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:54,732 INFO L93 Difference]: Finished difference Result 18293 states and 25931 transitions. [2019-09-10 07:56:54,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:56:54,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-09-10 07:56:54,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:54,752 INFO L225 Difference]: With dead ends: 18293 [2019-09-10 07:56:54,753 INFO L226 Difference]: Without dead ends: 18293 [2019-09-10 07:56:54,753 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:54,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18293 states. [2019-09-10 07:56:54,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18293 to 17547. [2019-09-10 07:56:54,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17547 states. [2019-09-10 07:56:55,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17547 states to 17547 states and 24907 transitions. [2019-09-10 07:56:55,002 INFO L78 Accepts]: Start accepts. Automaton has 17547 states and 24907 transitions. Word has length 123 [2019-09-10 07:56:55,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:55,002 INFO L475 AbstractCegarLoop]: Abstraction has 17547 states and 24907 transitions. [2019-09-10 07:56:55,002 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:56:55,003 INFO L276 IsEmpty]: Start isEmpty. Operand 17547 states and 24907 transitions. [2019-09-10 07:56:55,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-09-10 07:56:55,004 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:55,004 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:55,004 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:55,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:55,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1785596250, now seen corresponding path program 1 times [2019-09-10 07:56:55,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:55,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:55,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:55,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:55,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:55,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:55,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:55,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:56:55,102 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:55,102 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:56:55,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:56:55,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:56:55,103 INFO L87 Difference]: Start difference. First operand 17547 states and 24907 transitions. Second operand 7 states. [2019-09-10 07:56:55,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:55,682 INFO L93 Difference]: Finished difference Result 44195 states and 61857 transitions. [2019-09-10 07:56:55,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:56:55,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2019-09-10 07:56:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:55,725 INFO L225 Difference]: With dead ends: 44195 [2019-09-10 07:56:55,725 INFO L226 Difference]: Without dead ends: 44195 [2019-09-10 07:56:55,725 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:56:55,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44195 states. [2019-09-10 07:56:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44195 to 19221. [2019-09-10 07:56:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19221 states. [2019-09-10 07:56:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19221 states to 19221 states and 27232 transitions. [2019-09-10 07:56:56,027 INFO L78 Accepts]: Start accepts. Automaton has 19221 states and 27232 transitions. Word has length 125 [2019-09-10 07:56:56,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:56,027 INFO L475 AbstractCegarLoop]: Abstraction has 19221 states and 27232 transitions. [2019-09-10 07:56:56,028 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:56:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 19221 states and 27232 transitions. [2019-09-10 07:56:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-09-10 07:56:56,029 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:56,029 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:56,029 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:56,029 INFO L82 PathProgramCache]: Analyzing trace with hash -120223736, now seen corresponding path program 1 times [2019-09-10 07:56:56,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:56,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:56,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:56,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:56,031 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:56,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:56,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:56:56,128 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:56,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:56:56,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:56:56,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:56:56,129 INFO L87 Difference]: Start difference. First operand 19221 states and 27232 transitions. Second operand 7 states. [2019-09-10 07:56:56,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:56,646 INFO L93 Difference]: Finished difference Result 41611 states and 57615 transitions. [2019-09-10 07:56:56,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:56:56,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2019-09-10 07:56:56,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:56,690 INFO L225 Difference]: With dead ends: 41611 [2019-09-10 07:56:56,690 INFO L226 Difference]: Without dead ends: 41611 [2019-09-10 07:56:56,690 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:56:56,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41611 states. [2019-09-10 07:56:56,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41611 to 20877. [2019-09-10 07:56:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20877 states. [2019-09-10 07:56:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20877 states to 20877 states and 29440 transitions. [2019-09-10 07:56:56,957 INFO L78 Accepts]: Start accepts. Automaton has 20877 states and 29440 transitions. Word has length 125 [2019-09-10 07:56:56,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:56,957 INFO L475 AbstractCegarLoop]: Abstraction has 20877 states and 29440 transitions. [2019-09-10 07:56:56,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:56:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 20877 states and 29440 transitions. [2019-09-10 07:56:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-10 07:56:56,962 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:56,962 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:56,962 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:56,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:56,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1884575275, now seen corresponding path program 1 times [2019-09-10 07:56:56,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:56,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:56,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:56,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:56,964 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:57,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:57,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:56:57,030 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:57,030 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:56:57,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:56:57,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:57,031 INFO L87 Difference]: Start difference. First operand 20877 states and 29440 transitions. Second operand 3 states. [2019-09-10 07:56:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:57,214 INFO L93 Difference]: Finished difference Result 39577 states and 54843 transitions. [2019-09-10 07:56:57,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:56:57,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-09-10 07:56:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:57,260 INFO L225 Difference]: With dead ends: 39577 [2019-09-10 07:56:57,261 INFO L226 Difference]: Without dead ends: 39577 [2019-09-10 07:56:57,261 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39577 states. [2019-09-10 07:56:57,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39577 to 36987. [2019-09-10 07:56:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36987 states. [2019-09-10 07:56:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36987 states to 36987 states and 51607 transitions. [2019-09-10 07:56:57,573 INFO L78 Accepts]: Start accepts. Automaton has 36987 states and 51607 transitions. Word has length 152 [2019-09-10 07:56:57,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:57,573 INFO L475 AbstractCegarLoop]: Abstraction has 36987 states and 51607 transitions. [2019-09-10 07:56:57,573 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:56:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 36987 states and 51607 transitions. [2019-09-10 07:56:57,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-09-10 07:56:57,580 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:57,581 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:57,581 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:57,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:57,581 INFO L82 PathProgramCache]: Analyzing trace with hash -496901830, now seen corresponding path program 1 times [2019-09-10 07:56:57,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:57,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:57,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:57,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:57,583 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:57,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:56:57,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:56:57,651 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:56:57,651 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:56:57,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:56:57,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:57,652 INFO L87 Difference]: Start difference. First operand 36987 states and 51607 transitions. Second operand 3 states. [2019-09-10 07:56:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:56:57,817 INFO L93 Difference]: Finished difference Result 69797 states and 95348 transitions. [2019-09-10 07:56:57,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:56:57,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-09-10 07:56:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:56:57,888 INFO L225 Difference]: With dead ends: 69797 [2019-09-10 07:56:57,888 INFO L226 Difference]: Without dead ends: 69797 [2019-09-10 07:56:57,888 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:56:57,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69797 states. [2019-09-10 07:56:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69797 to 64643. [2019-09-10 07:56:59,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64643 states. [2019-09-10 07:56:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64643 states to 64643 states and 89091 transitions. [2019-09-10 07:56:59,540 INFO L78 Accepts]: Start accepts. Automaton has 64643 states and 89091 transitions. Word has length 153 [2019-09-10 07:56:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:56:59,541 INFO L475 AbstractCegarLoop]: Abstraction has 64643 states and 89091 transitions. [2019-09-10 07:56:59,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:56:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 64643 states and 89091 transitions. [2019-09-10 07:56:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-10 07:56:59,549 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:56:59,550 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:56:59,550 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:56:59,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:56:59,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1886746401, now seen corresponding path program 1 times [2019-09-10 07:56:59,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:56:59,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:59,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:56:59,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:56:59,552 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:56:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:56:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:56:59,801 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:56:59,801 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:56:59,802 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2019-09-10 07:56:59,804 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [75], [78], [81], [84], [87], [90], [93], [96], [99], [103], [106], [109], [111], [115], [118], [121], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [162], [166], [169], [172], [176], [179], [182], [185], [188], [190], [193], [196], [199], [201], [204], [207], [210], [212], [215], [218], [221], [223], [226], [229], [232], [234], [236], [239], [242], [246], [248], [251], [252], [254], [257], [260], [268], [270], [273], [281], [283], [286], [294], [296], [299], [307], [309], [312], [320], [322], [331], [333], [336], [339], [341], [356], [358], [361], [364], [366], [381], [383], [386], [389], [391], [406], [408], [411], [414], [416], [431], [433], [436], [439], [441], [450], [455], [457], [460], [569], [570], [574], [575], [576] [2019-09-10 07:56:59,846 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:56:59,847 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:56:59,984 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:57:01,071 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:57:01,075 INFO L272 AbstractInterpreter]: Visited 138 different actions 986 times. Merged at 53 different actions 729 times. Widened at 23 different actions 145 times. Performed 3444 root evaluator evaluations with a maximum evaluation depth of 7. Performed 3444 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 123 fixpoints after 23 different actions. Largest state had 157 variables. [2019-09-10 07:57:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:57:01,083 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:57:01,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:57:01,084 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:57:01,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:57:01,109 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:57:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:57:01,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:57:01,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:57:01,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:01,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,159 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:57:02,159 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:57:02,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:02,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:04,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:57:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:57:04,762 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:57:04,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 30 [2019-09-10 07:57:04,764 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:57:04,765 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:57:04,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:57:04,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2019-09-10 07:57:04,766 INFO L87 Difference]: Start difference. First operand 64643 states and 89091 transitions. Second operand 20 states. [2019-09-10 07:57:05,365 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-10 07:57:06,285 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-10 07:57:06,888 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-10 07:57:07,254 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-10 07:57:07,612 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-10 07:57:07,931 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 07:57:08,283 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-10 07:57:08,526 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 07:57:09,263 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:57:09,608 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:57:09,832 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 07:57:10,077 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-10 07:57:10,554 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-10 07:57:10,846 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:57:11,177 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:57:11,646 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-10 07:57:11,967 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:57:12,310 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-10 07:57:12,714 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:57:13,138 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:57:13,703 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-10 07:57:14,390 WARN L188 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-10 07:57:14,822 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:57:15,097 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:57:15,475 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:57:15,837 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:57:16,262 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:57:16,793 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:57:17,545 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:57:17,809 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:57:18,162 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-10 07:57:18,454 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-10 07:57:18,786 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:57:19,137 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-10 07:57:19,629 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:57:20,160 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:57:20,526 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-10 07:57:20,825 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:57:21,402 WARN L188 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:57:21,949 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2019-09-10 07:57:22,275 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:57:22,601 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-10 07:57:23,065 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:57:23,508 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-10 07:57:23,892 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:57:24,156 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:57:24,689 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-10 07:57:25,013 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:57:25,403 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:57:25,816 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-10 07:57:26,274 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-10 07:57:26,709 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:57:27,111 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:57:27,636 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:57:27,973 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:57:28,466 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2019-09-10 07:57:29,008 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2019-09-10 07:57:29,587 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2019-09-10 07:57:30,164 WARN L188 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 07:57:30,526 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-10 07:57:30,927 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:57:31,483 WARN L188 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-10 07:57:31,959 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:57:32,389 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-10 07:57:32,726 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-10 07:57:33,174 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:57:33,627 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-10 07:57:34,188 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 07:57:34,626 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 07:57:35,313 WARN L188 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2019-09-10 07:57:35,566 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:57:35,917 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 07:57:36,224 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2019-09-10 07:57:36,727 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-10 07:57:37,270 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 07:57:37,703 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:57:38,104 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 07:57:38,505 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-09-10 07:57:38,984 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:57:39,283 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 07:57:39,689 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:57:40,005 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:57:40,293 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:57:40,601 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:57:41,074 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 07:57:41,429 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:57:41,814 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 07:57:42,267 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-10 07:57:42,501 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-10 07:57:42,769 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-10 07:57:43,047 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:57:43,445 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 07:57:43,806 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 07:57:44,190 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:57:44,549 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:57:45,029 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-10 07:57:45,390 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 07:57:45,973 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-10 07:57:46,427 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:57:46,860 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 07:57:47,232 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 07:57:47,540 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:57:48,428 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:57:50,745 WARN L188 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:57:51,082 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:57:51,663 WARN L188 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:57:52,209 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:57:52,589 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-10 07:57:53,655 WARN L188 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-09-10 07:57:54,265 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-10 07:57:54,834 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:57:55,355 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:57:55,647 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:57:56,034 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:57:56,431 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:57:56,758 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:57:57,387 WARN L188 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:57:57,870 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:57:58,201 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 07:57:58,675 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 07:57:59,115 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2019-09-10 07:57:59,477 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 07:57:59,872 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 07:58:00,185 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:58:00,558 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:58:00,916 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 07:58:01,288 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:58:01,644 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:58:01,996 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:58:02,415 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 07:58:03,052 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:58:03,427 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-10 07:58:03,850 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 07:58:06,432 WARN L188 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 07:58:07,061 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:58:07,453 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:58:08,872 WARN L188 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:58:09,311 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:58:09,851 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:58:10,196 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:58:11,394 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 07:58:11,875 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:58:12,258 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:58:12,721 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 07:58:14,150 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:58:22,595 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-10 07:58:23,014 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:58:23,536 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-10 07:58:23,974 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-10 07:58:24,326 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:58:24,776 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-10 07:58:25,072 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:58:25,411 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-10 07:58:25,872 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 07:58:26,587 WARN L188 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-10 07:58:26,919 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:58:27,542 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-10 07:58:28,025 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:58:28,460 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:58:28,824 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-10 07:58:29,373 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:58:29,843 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:58:30,174 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:58:30,654 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-09-10 07:58:31,103 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-10 07:58:31,479 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:58:31,884 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:58:32,208 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:58:32,512 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 07:58:32,876 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:58:33,190 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:58:33,457 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 07:58:33,868 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:58:34,479 WARN L188 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:58:35,031 WARN L188 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:58:35,414 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:58:35,754 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:58:36,298 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:58:36,838 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 07:58:37,281 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:58:37,733 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:58:38,104 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:58:38,490 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:58:39,022 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 07:58:39,506 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:58:39,943 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:58:40,402 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:58:40,663 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:58:40,950 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:58:41,335 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:58:41,677 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:58:42,156 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2019-09-10 07:58:42,564 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:58:43,168 WARN L188 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:58:43,609 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:58:43,914 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:58:45,062 WARN L188 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:58:45,376 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2019-09-10 07:58:45,779 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:58:46,139 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2019-09-10 07:58:46,563 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:58:46,950 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 07:58:47,278 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:58:47,646 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2019-09-10 07:58:48,031 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:58:48,458 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 07:58:48,795 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:58:49,225 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-10 07:58:49,554 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:58:49,941 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:58:50,330 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 07:58:50,785 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:58:51,132 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:58:51,579 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:58:52,039 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-10 07:58:52,418 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:58:52,911 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-10 07:58:53,236 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:58:53,635 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:58:54,140 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:58:54,719 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:58:55,137 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:58:55,455 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:58:55,993 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:58:56,364 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:58:56,827 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:58:57,299 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:58:57,708 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:58:58,018 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:58:58,576 WARN L188 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:58:59,181 WARN L188 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 07:58:59,521 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:59:00,117 WARN L188 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:59:00,540 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 07:59:00,811 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:59:01,231 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:59:01,590 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 07:59:01,899 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:59:02,402 WARN L188 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 07:59:03,027 WARN L188 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:59:03,580 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 07:59:03,910 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:59:04,362 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 07:59:04,756 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:59:05,074 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:59:05,448 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:59:05,770 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:59:06,057 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:59:06,539 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:59:06,948 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:59:07,433 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:59:07,857 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:59:08,464 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:59:08,955 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-10 07:59:09,395 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:59:10,100 WARN L188 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-10 07:59:10,485 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:59:10,904 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:59:11,385 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-10 07:59:11,723 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:59:12,163 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:59:12,718 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:59:13,100 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:59:13,443 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:59:13,961 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:59:14,252 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:59:14,768 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:59:15,307 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:59:15,621 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-10 07:59:16,269 WARN L188 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:59:16,703 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:59:17,072 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 07:59:17,461 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:59:17,812 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-10 07:59:18,251 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:59:20,764 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:59:21,222 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:59:21,679 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:59:22,089 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:59:22,536 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:59:22,881 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-10 07:59:23,275 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:59:23,803 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:59:24,118 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:59:24,398 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 07:59:24,823 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:59:25,430 WARN L188 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:59:25,930 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:59:26,507 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:59:26,930 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:59:27,310 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:59:27,591 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:59:27,891 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:59:28,278 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:59:28,660 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-10 07:59:29,238 WARN L188 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 07:59:29,920 WARN L188 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-10 07:59:30,474 WARN L188 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2019-09-10 07:59:30,917 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-10 07:59:31,464 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2019-09-10 07:59:31,876 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2019-09-10 07:59:32,290 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-10 07:59:32,799 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:59:33,118 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:59:33,797 WARN L188 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:59:34,311 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 07:59:34,877 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:59:35,335 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:59:35,698 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:59:36,179 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:59:36,706 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:59:37,381 WARN L188 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 07:59:37,647 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:59:38,188 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:59:38,475 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:59:38,982 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:59:39,364 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2019-09-10 07:59:40,141 WARN L188 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-10 07:59:40,711 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-09-10 07:59:41,143 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2019-09-10 07:59:41,640 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-09-10 07:59:42,074 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-10 07:59:42,469 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 07:59:43,596 WARN L188 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 07:59:44,057 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:59:44,495 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:59:44,804 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:59:45,272 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:59:45,610 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:59:46,172 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:59:46,552 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 07:59:47,000 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-10 07:59:47,658 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-10 07:59:47,990 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:59:48,310 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:59:48,821 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:59:49,255 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:59:49,910 WARN L188 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2019-09-10 07:59:50,228 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:59:50,521 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 07:59:50,980 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-10 07:59:51,441 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-10 07:59:51,973 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-10 07:59:52,353 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:59:53,128 WARN L188 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-10 07:59:53,635 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2019-09-10 07:59:54,300 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:59:54,629 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 07:59:54,940 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:59:55,356 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:59:55,816 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2019-09-10 07:59:56,364 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:59:56,955 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:59:57,289 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:59:57,929 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:59:58,226 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 07:59:58,752 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2019-09-10 07:59:59,214 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 07:59:59,574 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-10 08:00:00,034 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 08:00:00,566 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-10 08:00:01,202 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 08:00:01,605 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 08:00:02,281 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2019-09-10 08:00:03,140 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 08:00:03,650 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 08:00:04,368 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 08:00:04,911 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 08:00:05,299 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 08:00:05,739 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 08:00:10,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:00:10,471 INFO L93 Difference]: Finished difference Result 996639 states and 1335990 transitions. [2019-09-10 08:00:10,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2019-09-10 08:00:10,472 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 154 [2019-09-10 08:00:10,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:00:12,216 INFO L225 Difference]: With dead ends: 996639 [2019-09-10 08:00:12,216 INFO L226 Difference]: Without dead ends: 996639 [2019-09-10 08:00:12,231 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 259 SyntacticMatches, 31 SemanticMatches, 401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68501 ImplicationChecksByTransitivity, 159.3s TimeCoverageRelationStatistics Valid=17922, Invalid=144084, Unknown=0, NotChecked=0, Total=162006 [2019-09-10 08:00:12,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996639 states. [2019-09-10 08:00:26,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996639 to 285613. [2019-09-10 08:00:26,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285613 states. [2019-09-10 08:00:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285613 states to 285613 states and 388039 transitions. [2019-09-10 08:00:26,977 INFO L78 Accepts]: Start accepts. Automaton has 285613 states and 388039 transitions. Word has length 154 [2019-09-10 08:00:26,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:00:26,978 INFO L475 AbstractCegarLoop]: Abstraction has 285613 states and 388039 transitions. [2019-09-10 08:00:26,978 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 08:00:26,978 INFO L276 IsEmpty]: Start isEmpty. Operand 285613 states and 388039 transitions. [2019-09-10 08:00:27,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-09-10 08:00:27,008 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:00:27,009 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:00:27,009 INFO L418 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:00:27,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:00:27,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1011234669, now seen corresponding path program 1 times [2019-09-10 08:00:27,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:00:27,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:00:27,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:00:27,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:00:27,011 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:00:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:00:31,123 WARN L188 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 37 DAG size of output: 18 [2019-09-10 08:00:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:00:31,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:00:31,284 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 08:00:31,285 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2019-09-10 08:00:31,288 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [75], [78], [81], [84], [87], [90], [93], [96], [99], [103], [106], [109], [111], [115], [118], [121], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [162], [166], [169], [172], [176], [179], [182], [185], [188], [190], [193], [196], [199], [201], [204], [207], [210], [212], [215], [218], [221], [223], [226], [229], [232], [234], [236], [239], [246], [248], [251], [252], [254], [257], [260], [268], [270], [273], [276], [281], [283], [286], [289], [294], [296], [299], [307], [309], [312], [320], [322], [331], [333], [336], [339], [341], [356], [358], [361], [364], [366], [374], [377], [383], [386], [389], [391], [399], [402], [408], [411], [414], [416], [431], [433], [436], [439], [441], [457], [460], [464], [569], [570], [574], [575], [576] [2019-09-10 08:00:31,310 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 08:00:31,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 08:00:31,373 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 08:00:32,200 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 08:00:32,202 INFO L272 AbstractInterpreter]: Visited 140 different actions 885 times. Merged at 55 different actions 654 times. Widened at 19 different actions 103 times. Performed 3265 root evaluator evaluations with a maximum evaluation depth of 5. Performed 3265 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 78 fixpoints after 19 different actions. Largest state had 157 variables. [2019-09-10 08:00:32,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:00:32,203 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 08:00:32,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:00:32,204 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 08:00:32,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:00:32,218 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 08:00:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:00:32,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 08:00:32,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 08:00:32,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:32,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:00:33,296 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 08:00:33,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:33,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:35,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:00:35,242 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:00:35,246 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 08:00:35,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2019-09-10 08:00:35,247 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 08:00:35,247 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 08:00:35,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 08:00:35,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2019-09-10 08:00:35,248 INFO L87 Difference]: Start difference. First operand 285613 states and 388039 transitions. Second operand 21 states. [2019-09-10 08:00:35,560 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 08:00:36,118 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 08:00:36,854 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 08:00:37,200 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 08:00:37,695 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 08:00:38,269 WARN L188 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 08:00:39,721 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:00:40,248 WARN L188 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:00:41,136 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:00:41,496 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:00:41,858 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:00:42,390 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 08:00:43,022 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:00:43,623 WARN L188 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:00:43,971 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:00:44,394 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:00:44,710 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:00:45,011 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:00:45,470 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:00:45,745 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:00:46,046 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:00:46,382 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:00:46,642 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:00:47,110 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:00:47,509 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:00:47,849 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 08:00:48,397 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:00:48,716 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:00:49,125 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:00:49,571 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:00:50,129 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:00:50,579 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:00:51,092 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:00:51,593 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:00:51,984 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:00:52,504 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:00:52,984 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:00:53,303 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:00:54,512 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:00:54,883 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:00:55,405 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:00:55,875 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:00:56,221 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:00:56,684 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:00:57,105 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:00:57,591 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:00:58,038 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:00:58,429 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:00:58,901 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:00:59,600 WARN L188 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:01:00,161 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:01:00,746 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:01:01,245 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:01,851 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:01:02,255 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:01:02,702 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:01:03,202 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:01:03,566 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:04,129 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:04,741 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:01:05,216 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:01:05,647 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:06,029 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 08:01:06,570 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:01:07,333 WARN L188 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:01:07,692 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:01:08,141 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:01:08,533 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:01:08,927 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:01:09,320 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:01:09,782 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:01:10,195 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:01:10,639 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:01:10,979 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:11,379 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:01:11,948 WARN L188 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:12,466 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:01:12,979 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:13,324 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:13,708 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:01:14,064 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:01:14,786 WARN L188 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:01:15,202 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:01:15,545 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:16,022 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:16,365 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:17,023 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:17,748 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:19,464 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:20,011 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:20,585 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:01:21,008 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:01:21,489 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:21,993 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:22,407 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:22,893 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:23,659 WARN L188 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:24,622 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:25,062 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:25,660 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:01:26,064 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 08:01:26,488 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:26,898 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 08:01:27,322 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:27,742 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 08:01:28,161 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:28,753 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 08:01:29,188 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:29,610 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 08:01:30,058 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:30,481 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:31,009 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:31,374 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:31,950 WARN L188 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:01:32,489 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 08:01:32,987 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:01:33,430 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 08:01:33,769 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:01:34,169 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 08:01:34,695 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:01:34,976 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 08:01:35,348 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:35,772 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:36,224 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:01:36,648 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:01:37,199 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:01:37,571 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:01:38,157 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:01:38,614 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:01:39,243 WARN L188 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:01:39,714 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 08:01:40,248 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:01:40,667 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 08:01:41,075 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:01:41,565 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:01:42,020 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:01:42,459 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:01:42,911 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:01:43,485 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 08:01:43,969 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:01:44,568 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 08:01:45,235 WARN L188 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:01:45,628 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:45,990 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:01:46,329 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:46,883 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:01:47,308 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:47,766 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:01:48,191 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:48,574 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:48,973 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 08:01:49,524 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 08:01:50,027 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 08:01:50,419 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:51,084 WARN L188 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:01:51,505 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:01:51,962 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:01:52,476 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:01:52,967 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:01:53,464 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:01:53,978 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:01:54,634 WARN L188 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 08:01:55,098 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:01:55,600 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:01:55,886 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:01:56,437 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2019-09-10 08:01:56,906 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2019-09-10 08:01:57,256 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:57,603 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:01:58,025 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:58,467 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:01:58,941 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:59,271 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:01:59,681 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 08:02:00,155 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:00,654 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:01,178 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-10 08:02:01,808 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-10 08:02:02,165 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:02,496 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:02:02,961 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:03,420 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:02:03,853 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:04,364 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:05,112 WARN L188 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-10 08:02:05,660 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-10 08:02:06,284 WARN L188 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:06,680 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:02:07,021 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:07,380 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:02:07,923 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:02:08,421 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:02:09,052 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:02:10,240 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:02:10,640 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:11,145 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:02:11,529 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:11,887 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:02:12,336 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:02:13,114 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:02:13,733 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:14,464 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:02:14,920 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 08:02:15,337 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 08:02:15,918 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 08:02:16,377 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:02:16,834 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:02:17,264 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:17,809 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:18,168 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:02:18,946 WARN L188 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:02:19,510 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:20,040 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:20,497 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:02:20,984 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:02:21,404 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:02:21,936 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-10 08:02:22,384 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:02:22,814 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-10 08:02:23,346 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:02:23,767 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:24,243 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:02:24,802 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 08:02:25,145 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:02:25,777 WARN L188 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 08:02:26,114 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2019-09-10 08:02:26,557 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:02:26,941 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 08:02:27,708 WARN L188 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 08:02:28,090 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:02:28,470 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:02:29,434 WARN L188 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-10 08:02:29,973 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:30,532 WARN L188 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 08:02:30,923 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:02:31,409 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:02:31,806 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:32,226 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-10 08:02:32,812 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 08:02:33,312 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-10 08:02:35,688 WARN L188 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:02:36,107 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 08:02:36,630 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:02:37,142 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:41,539 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:02:42,083 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-10 08:02:42,551 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 08:02:42,862 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 08:02:43,435 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 08:02:44,001 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:02:44,369 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:02:44,886 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 08:02:45,245 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:02:45,638 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 08:02:46,100 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:02:46,611 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 08:02:47,211 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:02:47,844 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:02:49,689 WARN L188 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 08:02:50,066 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:02:50,490 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-10 08:02:51,045 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-10 08:02:51,465 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:02:51,871 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 08:02:52,768 WARN L188 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 08:02:53,220 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:02:53,633 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 08:02:54,172 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-10 08:02:54,624 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 08:02:55,043 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 08:02:56,698 WARN L188 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:02:57,141 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:02:57,727 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 08:02:58,156 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 08:02:58,678 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-10 08:02:59,184 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-10 08:02:59,694 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2019-09-10 08:03:00,332 WARN L188 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 100 [2019-09-10 08:03:00,901 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 100 [2019-09-10 08:03:01,346 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 08:03:01,827 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 08:03:02,398 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-10 08:03:02,943 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 08:03:03,484 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-10 08:03:04,144 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2019-09-10 08:03:37,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:03:37,260 INFO L93 Difference]: Finished difference Result 4692295 states and 6255216 transitions. [2019-09-10 08:03:37,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2019-09-10 08:03:37,261 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 155 [2019-09-10 08:03:37,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:04:06,834 INFO L225 Difference]: With dead ends: 4692295 [2019-09-10 08:04:06,834 INFO L226 Difference]: Without dead ends: 4692295 [2019-09-10 08:04:06,840 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 261 SyntacticMatches, 31 SemanticMatches, 317 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40724 ImplicationChecksByTransitivity, 136.6s TimeCoverageRelationStatistics Valid=14346, Invalid=87096, Unknown=0, NotChecked=0, Total=101442 [2019-09-10 08:04:11,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4692295 states.