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.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 08:19:52,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 08:19:52,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 08:19:52,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 08:19:52,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 08:19:52,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 08:19:52,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 08:19:52,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 08:19:52,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 08:19:52,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 08:19:52,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 08:19:52,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 08:19:52,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 08:19:52,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 08:19:52,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 08:19:52,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 08:19:52,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 08:19:52,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 08:19:52,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 08:19:52,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 08:19:52,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 08:19:52,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 08:19:52,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 08:19:52,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 08:19:52,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 08:19:52,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 08:19:52,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 08:19:52,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 08:19:52,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 08:19:52,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 08:19:52,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 08:19:52,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 08:19:52,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 08:19:52,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 08:19:52,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 08:19:52,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 08:19:52,477 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 08:19:52,492 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 08:19:52,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 08:19:52,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 08:19:52,493 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 08:19:52,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 08:19:52,493 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 08:19:52,494 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 08:19:52,494 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 08:19:52,494 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 08:19:52,494 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 08:19:52,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 08:19:52,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 08:19:52,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 08:19:52,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 08:19:52,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 08:19:52,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 08:19:52,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 08:19:52,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 08:19:52,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 08:19:52,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 08:19:52,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 08:19:52,497 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 08:19:52,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 08:19:52,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 08:19:52,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 08:19:52,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 08:19:52,498 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 08:19:52,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 08:19:52,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 08:19:52,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 08:19:52,526 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 08:19:52,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 08:19:52,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 08:19:52,545 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 08:19:52,546 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 08:19:52,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-10 08:19:52,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7afa3ba5b/c0be9908699548ceaf29c906d34d2345/FLAG30b615f5e [2019-09-10 08:19:53,127 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 08:19:53,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-10 08:19:53,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7afa3ba5b/c0be9908699548ceaf29c906d34d2345/FLAG30b615f5e [2019-09-10 08:19:53,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7afa3ba5b/c0be9908699548ceaf29c906d34d2345 [2019-09-10 08:19:53,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 08:19:53,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 08:19:53,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 08:19:53,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 08:19:53,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 08:19:53,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 08:19:53" (1/1) ... [2019-09-10 08:19:53,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d59ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:53, skipping insertion in model container [2019-09-10 08:19:53,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 08:19:53" (1/1) ... [2019-09-10 08:19:53,435 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 08:19:53,487 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 08:19:53,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 08:19:53,911 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 08:19:54,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 08:19:54,082 INFO L192 MainTranslator]: Completed translation [2019-09-10 08:19:54,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54 WrapperNode [2019-09-10 08:19:54,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 08:19:54,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 08:19:54,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 08:19:54,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 08:19:54,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (1/1) ... [2019-09-10 08:19:54,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (1/1) ... [2019-09-10 08:19:54,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (1/1) ... [2019-09-10 08:19:54,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (1/1) ... [2019-09-10 08:19:54,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (1/1) ... [2019-09-10 08:19:54,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (1/1) ... [2019-09-10 08:19:54,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (1/1) ... [2019-09-10 08:19:54,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 08:19:54,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 08:19:54,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 08:19:54,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 08:19:54,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (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 08:19:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 08:19:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 08:19:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 08:19:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 08:19:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 08:19:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 08:19:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 08:19:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 08:19:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 08:19:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 08:19:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 08:19:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 08:19:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 08:19:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 08:19:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-10 08:19:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2019-09-10 08:19:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2019-09-10 08:19:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 08:19:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 08:19:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 08:19:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 08:19:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 08:19:55,152 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 08:19:55,152 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 08:19:55,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 08:19:55 BoogieIcfgContainer [2019-09-10 08:19:55,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 08:19:55,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 08:19:55,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 08:19:55,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 08:19:55,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 08:19:53" (1/3) ... [2019-09-10 08:19:55,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c594f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 08:19:55, skipping insertion in model container [2019-09-10 08:19:55,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:19:54" (2/3) ... [2019-09-10 08:19:55,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c594f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 08:19:55, skipping insertion in model container [2019-09-10 08:19:55,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 08:19:55" (3/3) ... [2019-09-10 08:19:55,163 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-10 08:19:55,173 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 08:19:55,181 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 08:19:55,199 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 08:19:55,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 08:19:55,228 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 08:19:55,228 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 08:19:55,228 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 08:19:55,229 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 08:19:55,229 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 08:19:55,229 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 08:19:55,229 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 08:19:55,251 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2019-09-10 08:19:55,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 08:19:55,267 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:55,268 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 08:19:55,271 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:55,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:55,277 INFO L82 PathProgramCache]: Analyzing trace with hash -911853224, now seen corresponding path program 1 times [2019-09-10 08:19:55,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:55,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:55,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:55,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:55,338 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:55,807 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 08:19:55,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:55,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:19:55,810 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:55,816 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:19:55,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:19:55,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:19:55,834 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2019-09-10 08:19:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:55,972 INFO L93 Difference]: Finished difference Result 279 states and 465 transitions. [2019-09-10 08:19:55,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:19:55,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-09-10 08:19:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:55,989 INFO L225 Difference]: With dead ends: 279 [2019-09-10 08:19:55,989 INFO L226 Difference]: Without dead ends: 271 [2019-09-10 08:19:55,991 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 08:19:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-09-10 08:19:56,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 269. [2019-09-10 08:19:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:19:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 388 transitions. [2019-09-10 08:19:56,057 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 388 transitions. Word has length 94 [2019-09-10 08:19:56,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:56,058 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 388 transitions. [2019-09-10 08:19:56,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:19:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 388 transitions. [2019-09-10 08:19:56,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 08:19:56,062 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:56,062 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, 1] [2019-09-10 08:19:56,063 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:56,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:56,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1894560043, now seen corresponding path program 1 times [2019-09-10 08:19:56,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:56,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:56,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:56,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:56,066 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:56,320 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 08:19:56,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:56,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:19:56,321 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:56,324 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:19:56,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:19:56,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:19:56,325 INFO L87 Difference]: Start difference. First operand 269 states and 388 transitions. Second operand 5 states. [2019-09-10 08:19:56,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:56,545 INFO L93 Difference]: Finished difference Result 269 states and 385 transitions. [2019-09-10 08:19:56,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:19:56,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2019-09-10 08:19:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:56,549 INFO L225 Difference]: With dead ends: 269 [2019-09-10 08:19:56,549 INFO L226 Difference]: Without dead ends: 269 [2019-09-10 08:19:56,550 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 08:19:56,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-10 08:19:56,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2019-09-10 08:19:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:19:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 385 transitions. [2019-09-10 08:19:56,569 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 385 transitions. Word has length 96 [2019-09-10 08:19:56,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:56,569 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 385 transitions. [2019-09-10 08:19:56,570 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:19:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 385 transitions. [2019-09-10 08:19:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 08:19:56,573 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:56,574 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, 1, 1] [2019-09-10 08:19:56,574 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:56,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:56,574 INFO L82 PathProgramCache]: Analyzing trace with hash -787666345, now seen corresponding path program 1 times [2019-09-10 08:19:56,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:56,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:56,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:56,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:56,577 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:56,801 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 08:19:56,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:56,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:19:56,802 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:56,802 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:19:56,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:19:56,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:19:56,803 INFO L87 Difference]: Start difference. First operand 269 states and 385 transitions. Second operand 5 states. [2019-09-10 08:19:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:56,997 INFO L93 Difference]: Finished difference Result 269 states and 382 transitions. [2019-09-10 08:19:56,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:19:56,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-09-10 08:19:56,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:57,001 INFO L225 Difference]: With dead ends: 269 [2019-09-10 08:19:57,002 INFO L226 Difference]: Without dead ends: 269 [2019-09-10 08:19:57,002 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 08:19:57,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-10 08:19:57,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2019-09-10 08:19:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:19:57,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 382 transitions. [2019-09-10 08:19:57,033 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 382 transitions. Word has length 97 [2019-09-10 08:19:57,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:57,034 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 382 transitions. [2019-09-10 08:19:57,035 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:19:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 382 transitions. [2019-09-10 08:19:57,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 08:19:57,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:57,041 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, 1, 1, 1] [2019-09-10 08:19:57,041 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:57,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:57,041 INFO L82 PathProgramCache]: Analyzing trace with hash 263026140, now seen corresponding path program 1 times [2019-09-10 08:19:57,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:57,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:57,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:57,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:57,046 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:57,206 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 08:19:57,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:57,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:19:57,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:57,207 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:19:57,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:19:57,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:19:57,208 INFO L87 Difference]: Start difference. First operand 269 states and 382 transitions. Second operand 5 states. [2019-09-10 08:19:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:57,398 INFO L93 Difference]: Finished difference Result 269 states and 379 transitions. [2019-09-10 08:19:57,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:19:57,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-09-10 08:19:57,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:57,401 INFO L225 Difference]: With dead ends: 269 [2019-09-10 08:19:57,401 INFO L226 Difference]: Without dead ends: 269 [2019-09-10 08:19:57,402 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 08:19:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-10 08:19:57,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2019-09-10 08:19:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:19:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 379 transitions. [2019-09-10 08:19:57,417 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 379 transitions. Word has length 98 [2019-09-10 08:19:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:57,417 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 379 transitions. [2019-09-10 08:19:57,417 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:19:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 379 transitions. [2019-09-10 08:19:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-10 08:19:57,423 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:57,423 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, 1, 1, 1, 1] [2019-09-10 08:19:57,424 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:57,425 INFO L82 PathProgramCache]: Analyzing trace with hash 699898071, now seen corresponding path program 1 times [2019-09-10 08:19:57,425 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:57,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:57,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:57,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:57,427 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:57,573 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 08:19:57,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:57,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:19:57,574 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:57,575 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:19:57,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:19:57,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:19:57,576 INFO L87 Difference]: Start difference. First operand 269 states and 379 transitions. Second operand 5 states. [2019-09-10 08:19:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:57,777 INFO L93 Difference]: Finished difference Result 269 states and 376 transitions. [2019-09-10 08:19:57,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:19:57,777 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-09-10 08:19:57,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:57,779 INFO L225 Difference]: With dead ends: 269 [2019-09-10 08:19:57,780 INFO L226 Difference]: Without dead ends: 269 [2019-09-10 08:19:57,780 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 08:19:57,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-10 08:19:57,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2019-09-10 08:19:57,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:19:57,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 376 transitions. [2019-09-10 08:19:57,792 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 376 transitions. Word has length 99 [2019-09-10 08:19:57,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:57,793 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 376 transitions. [2019-09-10 08:19:57,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:19:57,793 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 376 transitions. [2019-09-10 08:19:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-10 08:19:57,795 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:57,795 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, 1, 1, 1, 1, 1] [2019-09-10 08:19:57,796 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:57,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1306674069, now seen corresponding path program 1 times [2019-09-10 08:19:57,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:57,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:57,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:57,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:57,798 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:57,918 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 08:19:57,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:57,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:19:57,920 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:57,920 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:19:57,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:19:57,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:19:57,922 INFO L87 Difference]: Start difference. First operand 269 states and 376 transitions. Second operand 5 states. [2019-09-10 08:19:58,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:58,086 INFO L93 Difference]: Finished difference Result 269 states and 373 transitions. [2019-09-10 08:19:58,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:19:58,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-09-10 08:19:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:58,088 INFO L225 Difference]: With dead ends: 269 [2019-09-10 08:19:58,089 INFO L226 Difference]: Without dead ends: 269 [2019-09-10 08:19:58,089 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 08:19:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-10 08:19:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2019-09-10 08:19:58,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:19:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 373 transitions. [2019-09-10 08:19:58,097 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 373 transitions. Word has length 100 [2019-09-10 08:19:58,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:58,097 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 373 transitions. [2019-09-10 08:19:58,098 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:19:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 373 transitions. [2019-09-10 08:19:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 08:19:58,099 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:58,099 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, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:58,099 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:58,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2126638581, now seen corresponding path program 1 times [2019-09-10 08:19:58,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:58,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:58,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:58,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:58,102 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:58,199 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 08:19:58,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:58,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:19:58,199 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:58,200 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:19:58,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:19:58,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:19:58,202 INFO L87 Difference]: Start difference. First operand 269 states and 373 transitions. Second operand 5 states. [2019-09-10 08:19:58,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:58,385 INFO L93 Difference]: Finished difference Result 269 states and 370 transitions. [2019-09-10 08:19:58,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:19:58,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-09-10 08:19:58,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:58,388 INFO L225 Difference]: With dead ends: 269 [2019-09-10 08:19:58,389 INFO L226 Difference]: Without dead ends: 269 [2019-09-10 08:19:58,389 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 08:19:58,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-10 08:19:58,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2019-09-10 08:19:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:19:58,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 370 transitions. [2019-09-10 08:19:58,399 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 370 transitions. Word has length 101 [2019-09-10 08:19:58,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:58,399 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 370 transitions. [2019-09-10 08:19:58,400 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:19:58,400 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 370 transitions. [2019-09-10 08:19:58,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:19:58,402 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:58,402 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:58,402 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:58,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1373809086, now seen corresponding path program 1 times [2019-09-10 08:19:58,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:58,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:58,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:58,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:58,408 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:58,614 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 08:19:58,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:58,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 08:19:58,615 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:58,615 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 08:19:58,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 08:19:58,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 08:19:58,616 INFO L87 Difference]: Start difference. First operand 269 states and 370 transitions. Second operand 8 states. [2019-09-10 08:19:58,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:58,876 INFO L93 Difference]: Finished difference Result 1053 states and 1546 transitions. [2019-09-10 08:19:58,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 08:19:58,876 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-09-10 08:19:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:58,882 INFO L225 Difference]: With dead ends: 1053 [2019-09-10 08:19:58,882 INFO L226 Difference]: Without dead ends: 1053 [2019-09-10 08:19:58,883 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-09-10 08:19:58,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2019-09-10 08:19:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 338. [2019-09-10 08:19:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2019-09-10 08:19:58,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 475 transitions. [2019-09-10 08:19:58,898 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 475 transitions. Word has length 102 [2019-09-10 08:19:58,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:58,898 INFO L475 AbstractCegarLoop]: Abstraction has 338 states and 475 transitions. [2019-09-10 08:19:58,898 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 08:19:58,899 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 475 transitions. [2019-09-10 08:19:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:19:58,900 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:58,900 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:58,900 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:58,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:58,901 INFO L82 PathProgramCache]: Analyzing trace with hash 2021773123, now seen corresponding path program 1 times [2019-09-10 08:19:58,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:58,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:58,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:58,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:58,903 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:59,071 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 08:19:59,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:59,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 08:19:59,072 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:59,072 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 08:19:59,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 08:19:59,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-10 08:19:59,073 INFO L87 Difference]: Start difference. First operand 338 states and 475 transitions. Second operand 8 states. [2019-09-10 08:19:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:59,287 INFO L93 Difference]: Finished difference Result 1128 states and 1661 transitions. [2019-09-10 08:19:59,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 08:19:59,288 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-09-10 08:19:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:59,293 INFO L225 Difference]: With dead ends: 1128 [2019-09-10 08:19:59,294 INFO L226 Difference]: Without dead ends: 1128 [2019-09-10 08:19:59,295 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2019-09-10 08:19:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-09-10 08:19:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 513. [2019-09-10 08:19:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2019-09-10 08:19:59,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 743 transitions. [2019-09-10 08:19:59,319 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 743 transitions. Word has length 102 [2019-09-10 08:19:59,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:59,320 INFO L475 AbstractCegarLoop]: Abstraction has 513 states and 743 transitions. [2019-09-10 08:19:59,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 08:19:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 743 transitions. [2019-09-10 08:19:59,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:19:59,322 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:59,322 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:59,322 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:59,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:59,322 INFO L82 PathProgramCache]: Analyzing trace with hash -323435815, now seen corresponding path program 1 times [2019-09-10 08:19:59,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:59,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:59,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,326 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:59,480 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 08:19:59,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:59,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:19:59,481 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:59,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:19:59,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:19:59,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:19:59,482 INFO L87 Difference]: Start difference. First operand 513 states and 743 transitions. Second operand 5 states. [2019-09-10 08:19:59,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:59,586 INFO L93 Difference]: Finished difference Result 812 states and 1192 transitions. [2019-09-10 08:19:59,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:19:59,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 08:19:59,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:59,591 INFO L225 Difference]: With dead ends: 812 [2019-09-10 08:19:59,591 INFO L226 Difference]: Without dead ends: 812 [2019-09-10 08:19:59,591 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 08:19:59,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2019-09-10 08:19:59,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 726. [2019-09-10 08:19:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2019-09-10 08:19:59,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1067 transitions. [2019-09-10 08:19:59,610 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1067 transitions. Word has length 102 [2019-09-10 08:19:59,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:59,611 INFO L475 AbstractCegarLoop]: Abstraction has 726 states and 1067 transitions. [2019-09-10 08:19:59,611 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:19:59,611 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1067 transitions. [2019-09-10 08:19:59,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:19:59,613 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:59,613 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:59,614 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:59,614 INFO L82 PathProgramCache]: Analyzing trace with hash 602278735, now seen corresponding path program 1 times [2019-09-10 08:19:59,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:59,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:59,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,618 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:59,695 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 08:19:59,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:59,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:19:59,696 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:59,697 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:19:59,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:19:59,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:19:59,697 INFO L87 Difference]: Start difference. First operand 726 states and 1067 transitions. Second operand 3 states. [2019-09-10 08:19:59,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:59,744 INFO L93 Difference]: Finished difference Result 797 states and 1165 transitions. [2019-09-10 08:19:59,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:19:59,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-09-10 08:19:59,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:59,749 INFO L225 Difference]: With dead ends: 797 [2019-09-10 08:19:59,749 INFO L226 Difference]: Without dead ends: 797 [2019-09-10 08:19:59,750 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 08:19:59,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2019-09-10 08:19:59,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 795. [2019-09-10 08:19:59,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2019-09-10 08:19:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1164 transitions. [2019-09-10 08:19:59,768 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1164 transitions. Word has length 102 [2019-09-10 08:19:59,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:59,768 INFO L475 AbstractCegarLoop]: Abstraction has 795 states and 1164 transitions. [2019-09-10 08:19:59,768 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:19:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1164 transitions. [2019-09-10 08:19:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:19:59,770 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:59,770 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:59,770 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:59,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:59,771 INFO L82 PathProgramCache]: Analyzing trace with hash 359154384, now seen corresponding path program 1 times [2019-09-10 08:19:59,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:59,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:59,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,773 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:59,835 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 08:19:59,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:59,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:19:59,836 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:59,837 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:19:59,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:19:59,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:19:59,838 INFO L87 Difference]: Start difference. First operand 795 states and 1164 transitions. Second operand 3 states. [2019-09-10 08:19:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:59,881 INFO L93 Difference]: Finished difference Result 1358 states and 1984 transitions. [2019-09-10 08:19:59,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:19:59,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-09-10 08:19:59,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:59,888 INFO L225 Difference]: With dead ends: 1358 [2019-09-10 08:19:59,888 INFO L226 Difference]: Without dead ends: 1358 [2019-09-10 08:19:59,889 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 08:19:59,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2019-09-10 08:19:59,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1338. [2019-09-10 08:19:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1338 states. [2019-09-10 08:19:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1956 transitions. [2019-09-10 08:19:59,928 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1956 transitions. Word has length 102 [2019-09-10 08:19:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:59,928 INFO L475 AbstractCegarLoop]: Abstraction has 1338 states and 1956 transitions. [2019-09-10 08:19:59,928 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:19:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1956 transitions. [2019-09-10 08:19:59,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:19:59,930 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:59,930 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:59,930 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:59,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:59,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1507490450, now seen corresponding path program 1 times [2019-09-10 08:19:59,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:59,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:59,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:59,933 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:00,043 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 08:20:00,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:00,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:20:00,044 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:00,044 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:20:00,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:20:00,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:20:00,045 INFO L87 Difference]: Start difference. First operand 1338 states and 1956 transitions. Second operand 5 states. [2019-09-10 08:20:00,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:00,144 INFO L93 Difference]: Finished difference Result 1608 states and 2349 transitions. [2019-09-10 08:20:00,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:20:00,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 08:20:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:00,152 INFO L225 Difference]: With dead ends: 1608 [2019-09-10 08:20:00,152 INFO L226 Difference]: Without dead ends: 1608 [2019-09-10 08:20:00,153 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 08:20:00,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2019-09-10 08:20:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1468. [2019-09-10 08:20:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1468 states. [2019-09-10 08:20:00,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2149 transitions. [2019-09-10 08:20:00,183 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2149 transitions. Word has length 102 [2019-09-10 08:20:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:00,184 INFO L475 AbstractCegarLoop]: Abstraction has 1468 states and 2149 transitions. [2019-09-10 08:20:00,184 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:20:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2149 transitions. [2019-09-10 08:20:00,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:20:00,185 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:00,186 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:00,186 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:00,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:00,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1474006360, now seen corresponding path program 1 times [2019-09-10 08:20:00,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:00,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:00,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:00,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:00,188 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:00,314 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 08:20:00,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:00,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:20:00,315 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:00,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:20:00,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:20:00,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:20:00,316 INFO L87 Difference]: Start difference. First operand 1468 states and 2149 transitions. Second operand 5 states. [2019-09-10 08:20:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:00,412 INFO L93 Difference]: Finished difference Result 1788 states and 2618 transitions. [2019-09-10 08:20:00,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:20:00,413 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 08:20:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:00,421 INFO L225 Difference]: With dead ends: 1788 [2019-09-10 08:20:00,422 INFO L226 Difference]: Without dead ends: 1788 [2019-09-10 08:20:00,422 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 08:20:00,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2019-09-10 08:20:00,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1608. [2019-09-10 08:20:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1608 states. [2019-09-10 08:20:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2358 transitions. [2019-09-10 08:20:00,461 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2358 transitions. Word has length 102 [2019-09-10 08:20:00,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:00,461 INFO L475 AbstractCegarLoop]: Abstraction has 1608 states and 2358 transitions. [2019-09-10 08:20:00,461 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:20:00,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2358 transitions. [2019-09-10 08:20:00,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:20:00,462 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:00,463 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:00,463 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:00,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:00,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1383468205, now seen corresponding path program 1 times [2019-09-10 08:20:00,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:00,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:00,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:00,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:00,465 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:00,614 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 08:20:00,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:00,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 08:20:00,615 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:00,615 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 08:20:00,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 08:20:00,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 08:20:00,616 INFO L87 Difference]: Start difference. First operand 1608 states and 2358 transitions. Second operand 8 states. [2019-09-10 08:20:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:00,868 INFO L93 Difference]: Finished difference Result 4680 states and 6919 transitions. [2019-09-10 08:20:00,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 08:20:00,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-09-10 08:20:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:00,889 INFO L225 Difference]: With dead ends: 4680 [2019-09-10 08:20:00,889 INFO L226 Difference]: Without dead ends: 4680 [2019-09-10 08:20:00,890 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-09-10 08:20:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4680 states. [2019-09-10 08:20:00,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4680 to 1888. [2019-09-10 08:20:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1888 states. [2019-09-10 08:20:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2775 transitions. [2019-09-10 08:20:00,968 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2775 transitions. Word has length 102 [2019-09-10 08:20:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:00,968 INFO L475 AbstractCegarLoop]: Abstraction has 1888 states and 2775 transitions. [2019-09-10 08:20:00,968 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 08:20:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2775 transitions. [2019-09-10 08:20:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 08:20:00,969 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:00,970 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:00,970 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:00,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1488862363, now seen corresponding path program 1 times [2019-09-10 08:20:00,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:00,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:00,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:00,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:00,972 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:01,068 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 08:20:01,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:01,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:20:01,069 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:01,069 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:20:01,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:20:01,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:20:01,070 INFO L87 Difference]: Start difference. First operand 1888 states and 2775 transitions. Second operand 5 states. [2019-09-10 08:20:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:01,126 INFO L93 Difference]: Finished difference Result 3186 states and 4683 transitions. [2019-09-10 08:20:01,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 08:20:01,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2019-09-10 08:20:01,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:01,139 INFO L225 Difference]: With dead ends: 3186 [2019-09-10 08:20:01,140 INFO L226 Difference]: Without dead ends: 3186 [2019-09-10 08:20:01,140 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 08:20:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2019-09-10 08:20:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 1902. [2019-09-10 08:20:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-10 08:20:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2784 transitions. [2019-09-10 08:20:01,195 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2784 transitions. Word has length 103 [2019-09-10 08:20:01,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:01,195 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2784 transitions. [2019-09-10 08:20:01,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:20:01,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2784 transitions. [2019-09-10 08:20:01,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 08:20:01,197 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:01,197 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:01,197 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:01,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1518421097, now seen corresponding path program 1 times [2019-09-10 08:20:01,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:01,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:01,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:01,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:01,200 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:01,505 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 08:20:01,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:01,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 08:20:01,506 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:01,507 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 08:20:01,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 08:20:01,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-10 08:20:01,508 INFO L87 Difference]: Start difference. First operand 1902 states and 2784 transitions. Second operand 9 states. [2019-09-10 08:20:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:02,142 INFO L93 Difference]: Finished difference Result 3602 states and 5290 transitions. [2019-09-10 08:20:02,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 08:20:02,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2019-09-10 08:20:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:02,158 INFO L225 Difference]: With dead ends: 3602 [2019-09-10 08:20:02,158 INFO L226 Difference]: Without dead ends: 3602 [2019-09-10 08:20:02,159 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2019-09-10 08:20:02,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2019-09-10 08:20:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 1902. [2019-09-10 08:20:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-10 08:20:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2783 transitions. [2019-09-10 08:20:02,212 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2783 transitions. Word has length 103 [2019-09-10 08:20:02,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:02,213 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2783 transitions. [2019-09-10 08:20:02,213 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 08:20:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2783 transitions. [2019-09-10 08:20:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 08:20:02,215 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:02,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:02,215 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:02,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1934155735, now seen corresponding path program 1 times [2019-09-10 08:20:02,216 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:02,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:02,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:02,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:02,217 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:20:02,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:02,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:20:02,463 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:02,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:20:02,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:20:02,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:20:02,464 INFO L87 Difference]: Start difference. First operand 1902 states and 2783 transitions. Second operand 10 states. [2019-09-10 08:20:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:03,461 INFO L93 Difference]: Finished difference Result 3744 states and 5483 transitions. [2019-09-10 08:20:03,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:20:03,462 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-09-10 08:20:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:03,495 INFO L225 Difference]: With dead ends: 3744 [2019-09-10 08:20:03,495 INFO L226 Difference]: Without dead ends: 3744 [2019-09-10 08:20:03,496 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:20:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2019-09-10 08:20:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 1902. [2019-09-10 08:20:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-10 08:20:03,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2781 transitions. [2019-09-10 08:20:03,545 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2781 transitions. Word has length 104 [2019-09-10 08:20:03,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:03,546 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2781 transitions. [2019-09-10 08:20:03,546 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:20:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2781 transitions. [2019-09-10 08:20:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 08:20:03,548 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:03,548 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:03,548 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:03,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:03,549 INFO L82 PathProgramCache]: Analyzing trace with hash 85263168, now seen corresponding path program 1 times [2019-09-10 08:20:03,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:03,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:03,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:03,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:03,550 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:03,760 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 08:20:03,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:03,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:20:03,761 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:03,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:20:03,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:20:03,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:20:03,762 INFO L87 Difference]: Start difference. First operand 1902 states and 2781 transitions. Second operand 10 states. [2019-09-10 08:20:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:04,682 INFO L93 Difference]: Finished difference Result 3739 states and 5470 transitions. [2019-09-10 08:20:04,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:20:04,683 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-09-10 08:20:04,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:04,691 INFO L225 Difference]: With dead ends: 3739 [2019-09-10 08:20:04,691 INFO L226 Difference]: Without dead ends: 3739 [2019-09-10 08:20:04,692 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:20:04,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2019-09-10 08:20:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 1902. [2019-09-10 08:20:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-10 08:20:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2777 transitions. [2019-09-10 08:20:04,735 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2777 transitions. Word has length 104 [2019-09-10 08:20:04,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:04,735 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2777 transitions. [2019-09-10 08:20:04,735 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:20:04,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2777 transitions. [2019-09-10 08:20:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-10 08:20:04,737 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:04,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:04,737 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:04,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:04,737 INFO L82 PathProgramCache]: Analyzing trace with hash 37876548, now seen corresponding path program 1 times [2019-09-10 08:20:04,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:04,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:04,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:04,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:04,740 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:04,998 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 08:20:04,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:04,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:20:04,999 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:05,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:20:05,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:20:05,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:20:05,001 INFO L87 Difference]: Start difference. First operand 1902 states and 2777 transitions. Second operand 10 states. [2019-09-10 08:20:05,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:05,905 INFO L93 Difference]: Finished difference Result 3684 states and 5371 transitions. [2019-09-10 08:20:05,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:20:05,905 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2019-09-10 08:20:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:05,912 INFO L225 Difference]: With dead ends: 3684 [2019-09-10 08:20:05,913 INFO L226 Difference]: Without dead ends: 3684 [2019-09-10 08:20:05,913 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:20:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2019-09-10 08:20:05,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 1902. [2019-09-10 08:20:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-10 08:20:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2770 transitions. [2019-09-10 08:20:05,954 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2770 transitions. Word has length 105 [2019-09-10 08:20:05,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:05,954 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2770 transitions. [2019-09-10 08:20:05,955 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:20:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2770 transitions. [2019-09-10 08:20:05,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 08:20:05,956 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:05,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:05,956 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:05,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:05,957 INFO L82 PathProgramCache]: Analyzing trace with hash -6182625, now seen corresponding path program 1 times [2019-09-10 08:20:05,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:05,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:05,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:05,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:05,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:20:06,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:06,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:20:06,207 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:06,207 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:20:06,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:20:06,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:20:06,208 INFO L87 Difference]: Start difference. First operand 1902 states and 2770 transitions. Second operand 10 states. [2019-09-10 08:20:07,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:07,275 INFO L93 Difference]: Finished difference Result 3729 states and 5434 transitions. [2019-09-10 08:20:07,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:20:07,275 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2019-09-10 08:20:07,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:07,282 INFO L225 Difference]: With dead ends: 3729 [2019-09-10 08:20:07,282 INFO L226 Difference]: Without dead ends: 3729 [2019-09-10 08:20:07,283 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 08:20:07,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2019-09-10 08:20:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 1902. [2019-09-10 08:20:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-10 08:20:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2765 transitions. [2019-09-10 08:20:07,350 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2765 transitions. Word has length 106 [2019-09-10 08:20:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:07,350 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2765 transitions. [2019-09-10 08:20:07,350 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:20:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2765 transitions. [2019-09-10 08:20:07,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 08:20:07,352 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:07,352 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:07,352 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:07,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:07,353 INFO L82 PathProgramCache]: Analyzing trace with hash -361867127, now seen corresponding path program 1 times [2019-09-10 08:20:07,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:07,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:07,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:07,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:07,360 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:07,603 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 08:20:07,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:07,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:20:07,604 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:07,604 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:20:07,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:20:07,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:20:07,605 INFO L87 Difference]: Start difference. First operand 1902 states and 2765 transitions. Second operand 10 states. [2019-09-10 08:20:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:08,618 INFO L93 Difference]: Finished difference Result 3709 states and 5395 transitions. [2019-09-10 08:20:08,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:20:08,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 107 [2019-09-10 08:20:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:08,627 INFO L225 Difference]: With dead ends: 3709 [2019-09-10 08:20:08,627 INFO L226 Difference]: Without dead ends: 3709 [2019-09-10 08:20:08,628 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:20:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2019-09-10 08:20:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 1902. [2019-09-10 08:20:08,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-10 08:20:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2759 transitions. [2019-09-10 08:20:08,665 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2759 transitions. Word has length 107 [2019-09-10 08:20:08,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:08,665 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2759 transitions. [2019-09-10 08:20:08,666 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:20:08,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2759 transitions. [2019-09-10 08:20:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:20:08,667 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:08,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:08,668 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:08,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:08,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1928807370, now seen corresponding path program 1 times [2019-09-10 08:20:08,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:08,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:08,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:08,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:08,670 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:09,775 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 08:20:10,741 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 08:20:10,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:10,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-09-10 08:20:10,742 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:10,742 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-10 08:20:10,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-10 08:20:10,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:20:10,743 INFO L87 Difference]: Start difference. First operand 1902 states and 2759 transitions. Second operand 25 states. [2019-09-10 08:20:11,874 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2019-09-10 08:20:12,150 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2019-09-10 08:20:12,540 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2019-09-10 08:20:12,948 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2019-09-10 08:20:13,496 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 120 [2019-09-10 08:20:14,146 WARN L188 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2019-09-10 08:20:14,399 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-09-10 08:20:14,574 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-10 08:20:14,949 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2019-09-10 08:20:15,397 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2019-09-10 08:20:15,659 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-10 08:20:16,063 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-10 08:20:16,571 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-10 08:20:16,975 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-10 08:20:19,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:19,246 INFO L93 Difference]: Finished difference Result 8139 states and 11940 transitions. [2019-09-10 08:20:19,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-09-10 08:20:19,246 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 108 [2019-09-10 08:20:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:19,260 INFO L225 Difference]: With dead ends: 8139 [2019-09-10 08:20:19,260 INFO L226 Difference]: Without dead ends: 8139 [2019-09-10 08:20:19,261 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=495, Invalid=2055, Unknown=0, NotChecked=0, Total=2550 [2019-09-10 08:20:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8139 states. [2019-09-10 08:20:19,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8139 to 1912. [2019-09-10 08:20:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2019-09-10 08:20:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2769 transitions. [2019-09-10 08:20:19,333 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2769 transitions. Word has length 108 [2019-09-10 08:20:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:19,334 INFO L475 AbstractCegarLoop]: Abstraction has 1912 states and 2769 transitions. [2019-09-10 08:20:19,334 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-10 08:20:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2769 transitions. [2019-09-10 08:20:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:20:19,335 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:19,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:19,336 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:19,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:19,336 INFO L82 PathProgramCache]: Analyzing trace with hash -2012504660, now seen corresponding path program 1 times [2019-09-10 08:20:19,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:19,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:19,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:19,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:19,338 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:20,425 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 08:20:20,607 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 08:20:20,770 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 08:20:20,975 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 08:20:21,187 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-10 08:20:21,399 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:20:21,565 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 08:20:21,744 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 08:20:22,124 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-10 08:20:23,780 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 08:20:23,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:23,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2019-09-10 08:20:23,780 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:23,781 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 08:20:23,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 08:20:23,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1187, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 08:20:23,782 INFO L87 Difference]: Start difference. First operand 1912 states and 2769 transitions. Second operand 36 states. [2019-09-10 08:20:24,041 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 43 [2019-09-10 08:20:25,523 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 39 [2019-09-10 08:20:25,747 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2019-09-10 08:20:26,472 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 45 [2019-09-10 08:20:26,862 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 56 [2019-09-10 08:20:27,236 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 63 [2019-09-10 08:20:27,728 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 80 [2019-09-10 08:20:28,245 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 89 [2019-09-10 08:20:28,899 WARN L188 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 106 [2019-09-10 08:20:29,602 WARN L188 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 117 [2019-09-10 08:20:30,452 WARN L188 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 140 [2019-09-10 08:20:31,402 WARN L188 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 159 [2019-09-10 08:20:32,567 WARN L188 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 184 [2019-09-10 08:20:33,036 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 86 [2019-09-10 08:20:33,511 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 86 [2019-09-10 08:20:33,921 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2019-09-10 08:20:37,921 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 61 [2019-09-10 08:20:46,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:20:46,579 INFO L93 Difference]: Finished difference Result 9596 states and 14082 transitions. [2019-09-10 08:20:46,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-09-10 08:20:46,580 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 108 [2019-09-10 08:20:46,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:20:46,597 INFO L225 Difference]: With dead ends: 9596 [2019-09-10 08:20:46,597 INFO L226 Difference]: Without dead ends: 9596 [2019-09-10 08:20:46,598 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=699, Invalid=3723, Unknown=0, NotChecked=0, Total=4422 [2019-09-10 08:20:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9596 states. [2019-09-10 08:20:46,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9596 to 1955. [2019-09-10 08:20:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1955 states. [2019-09-10 08:20:46,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 2824 transitions. [2019-09-10 08:20:46,673 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 2824 transitions. Word has length 108 [2019-09-10 08:20:46,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:20:46,674 INFO L475 AbstractCegarLoop]: Abstraction has 1955 states and 2824 transitions. [2019-09-10 08:20:46,674 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 08:20:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 2824 transitions. [2019-09-10 08:20:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:20:46,677 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:20:46,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:20:46,677 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:20:46,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:20:46,678 INFO L82 PathProgramCache]: Analyzing trace with hash -409687476, now seen corresponding path program 1 times [2019-09-10 08:20:46,678 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:20:46,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:46,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:20:46,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:20:46,680 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:20:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:20:50,371 WARN L188 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 08:20:51,268 WARN L188 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 08:20:52,594 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 08:20:52,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:20:52,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2019-09-10 08:20:52,595 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:20:52,595 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 08:20:52,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 08:20:52,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1166, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 08:20:52,596 INFO L87 Difference]: Start difference. First operand 1955 states and 2824 transitions. Second operand 36 states. [2019-09-10 08:20:52,787 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-09-10 08:20:54,581 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-10 08:20:54,910 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 08:20:55,223 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:20:55,660 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2019-09-10 08:20:56,189 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 126 [2019-09-10 08:20:56,862 WARN L188 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 135 [2019-09-10 08:21:01,556 WARN L188 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 176 DAG size of output: 157 [2019-09-10 08:21:21,580 WARN L188 SmtUtils]: Spent 19.85 s on a formula simplification. DAG size of input: 199 DAG size of output: 180 [2019-09-10 08:22:46,867 WARN L188 SmtUtils]: Spent 1.42 m on a formula simplification. DAG size of input: 229 DAG size of output: 208 [2019-09-10 08:23:40,010 WARN L188 SmtUtils]: Spent 52.98 s on a formula simplification. DAG size of input: 245 DAG size of output: 224 [2019-09-10 08:23:40,388 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:23:40,672 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:23:40,892 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-10 08:23:41,236 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:23:41,426 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-10 08:23:41,777 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:23:46,131 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 08:24:14,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:24:14,926 INFO L93 Difference]: Finished difference Result 13183 states and 19336 transitions. [2019-09-10 08:24:14,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-09-10 08:24:14,926 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 108 [2019-09-10 08:24:14,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:24:14,944 INFO L225 Difference]: With dead ends: 13183 [2019-09-10 08:24:14,944 INFO L226 Difference]: Without dead ends: 13183 [2019-09-10 08:24:14,946 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 174.2s TimeCoverageRelationStatistics Valid=938, Invalid=5223, Unknown=1, NotChecked=0, Total=6162 [2019-09-10 08:24:14,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13183 states. [2019-09-10 08:24:15,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13183 to 1996. [2019-09-10 08:24:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1996 states. [2019-09-10 08:24:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2880 transitions. [2019-09-10 08:24:15,054 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2880 transitions. Word has length 108 [2019-09-10 08:24:15,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:24:15,055 INFO L475 AbstractCegarLoop]: Abstraction has 1996 states and 2880 transitions. [2019-09-10 08:24:15,055 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 08:24:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2880 transitions. [2019-09-10 08:24:15,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:24:15,057 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:24:15,058 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:24:15,058 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:24:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:24:15,059 INFO L82 PathProgramCache]: Analyzing trace with hash 952239658, now seen corresponding path program 1 times [2019-09-10 08:24:15,059 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:24:15,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:15,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:24:15,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:15,062 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:24:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:24:16,044 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-10 08:24:16,873 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 08:24:16,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:24:16,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-09-10 08:24:16,874 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:24:16,874 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-10 08:24:16,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-10 08:24:16,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:24:16,875 INFO L87 Difference]: Start difference. First operand 1996 states and 2880 transitions. Second operand 25 states. [2019-09-10 08:24:17,647 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2019-09-10 08:24:17,956 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2019-09-10 08:24:18,236 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-10 08:24:18,608 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2019-09-10 08:24:19,021 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2019-09-10 08:24:19,595 WARN L188 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 120 [2019-09-10 08:24:20,208 WARN L188 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2019-09-10 08:24:20,438 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-09-10 08:24:20,612 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-10 08:24:20,917 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-10 08:24:21,274 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-10 08:24:21,547 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2019-09-10 08:24:21,844 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2019-09-10 08:24:22,360 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-10 08:24:22,706 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-10 08:24:24,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:24:24,995 INFO L93 Difference]: Finished difference Result 8218 states and 12030 transitions. [2019-09-10 08:24:24,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-09-10 08:24:24,996 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 108 [2019-09-10 08:24:24,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:24:25,002 INFO L225 Difference]: With dead ends: 8218 [2019-09-10 08:24:25,003 INFO L226 Difference]: Without dead ends: 8218 [2019-09-10 08:24:25,003 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=495, Invalid=2055, Unknown=0, NotChecked=0, Total=2550 [2019-09-10 08:24:25,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8218 states. [2019-09-10 08:24:25,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8218 to 2011. [2019-09-10 08:24:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2011 states. [2019-09-10 08:24:25,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2897 transitions. [2019-09-10 08:24:25,089 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2897 transitions. Word has length 108 [2019-09-10 08:24:25,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:24:25,089 INFO L475 AbstractCegarLoop]: Abstraction has 2011 states and 2897 transitions. [2019-09-10 08:24:25,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-10 08:24:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2897 transitions. [2019-09-10 08:24:25,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:24:25,091 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:24:25,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:24:25,092 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:24:25,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:24:25,092 INFO L82 PathProgramCache]: Analyzing trace with hash -771731288, now seen corresponding path program 1 times [2019-09-10 08:24:25,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:24:25,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:25,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:24:25,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:25,094 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:24:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:24:26,265 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:24:26,421 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 08:24:26,619 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 08:24:26,789 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 08:24:26,977 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 08:24:27,299 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 08:24:28,657 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 08:24:28,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:24:28,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-09-10 08:24:28,658 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:24:28,658 INFO L454 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-09-10 08:24:28,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-09-10 08:24:28,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1112, Unknown=0, NotChecked=0, Total=1190 [2019-09-10 08:24:28,659 INFO L87 Difference]: Start difference. First operand 2011 states and 2897 transitions. Second operand 35 states. [2019-09-10 08:24:28,886 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2019-09-10 08:24:30,074 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-10 08:24:30,285 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-10 08:24:30,645 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 08:24:31,287 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-10 08:24:31,657 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 83 [2019-09-10 08:24:32,139 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 98 [2019-09-10 08:24:32,692 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 108 [2019-09-10 08:24:33,380 WARN L188 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 125 [2019-09-10 08:24:34,175 WARN L188 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 134 [2019-09-10 08:24:35,076 WARN L188 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 150 [2019-09-10 08:24:36,083 WARN L188 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 159 [2019-09-10 08:24:37,315 WARN L188 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 212 DAG size of output: 174 [2019-09-10 08:24:37,722 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2019-09-10 08:24:38,122 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2019-09-10 08:24:38,672 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2019-09-10 08:24:39,059 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-10 08:24:39,496 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-10 08:24:40,241 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-09-10 08:24:40,716 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-09-10 08:24:48,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:24:48,986 INFO L93 Difference]: Finished difference Result 8359 states and 12233 transitions. [2019-09-10 08:24:48,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-09-10 08:24:48,986 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 108 [2019-09-10 08:24:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:24:48,994 INFO L225 Difference]: With dead ends: 8359 [2019-09-10 08:24:48,995 INFO L226 Difference]: Without dead ends: 8359 [2019-09-10 08:24:48,996 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=795, Invalid=3365, Unknown=0, NotChecked=0, Total=4160 [2019-09-10 08:24:49,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8359 states. [2019-09-10 08:24:49,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8359 to 2016. [2019-09-10 08:24:49,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2019-09-10 08:24:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2902 transitions. [2019-09-10 08:24:49,053 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2902 transitions. Word has length 108 [2019-09-10 08:24:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:24:49,053 INFO L475 AbstractCegarLoop]: Abstraction has 2016 states and 2902 transitions. [2019-09-10 08:24:49,053 INFO L476 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-09-10 08:24:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2902 transitions. [2019-09-10 08:24:49,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:24:49,055 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:24:49,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:24:49,055 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:24:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:24:49,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1756188310, now seen corresponding path program 1 times [2019-09-10 08:24:49,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:24:49,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:49,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:24:49,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:49,057 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:24:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:24:49,867 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-10 08:24:50,606 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 08:24:50,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:24:50,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-09-10 08:24:50,607 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:24:50,607 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-10 08:24:50,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-10 08:24:50,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-09-10 08:24:50,608 INFO L87 Difference]: Start difference. First operand 2016 states and 2902 transitions. Second operand 23 states. [2019-09-10 08:24:51,747 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-10 08:24:51,977 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-09-10 08:24:52,325 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2019-09-10 08:24:52,713 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94 [2019-09-10 08:24:53,202 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 106 [2019-09-10 08:24:53,463 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:24:53,719 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:24:54,062 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 08:24:54,282 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:24:54,540 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:24:54,960 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-10 08:24:55,240 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-10 08:24:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:24:58,601 INFO L93 Difference]: Finished difference Result 10677 states and 15661 transitions. [2019-09-10 08:24:58,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-10 08:24:58,601 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 108 [2019-09-10 08:24:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:24:58,609 INFO L225 Difference]: With dead ends: 10677 [2019-09-10 08:24:58,610 INFO L226 Difference]: Without dead ends: 10677 [2019-09-10 08:24:58,610 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=440, Invalid=1540, Unknown=0, NotChecked=0, Total=1980 [2019-09-10 08:24:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10677 states. [2019-09-10 08:24:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10677 to 1991. [2019-09-10 08:24:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2019-09-10 08:24:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2865 transitions. [2019-09-10 08:24:58,686 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2865 transitions. Word has length 108 [2019-09-10 08:24:58,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:24:58,687 INFO L475 AbstractCegarLoop]: Abstraction has 1991 states and 2865 transitions. [2019-09-10 08:24:58,687 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-10 08:24:58,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2865 transitions. [2019-09-10 08:24:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:24:58,689 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:24:58,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:24:58,689 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:24:58,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:24:58,690 INFO L82 PathProgramCache]: Analyzing trace with hash -12864555, now seen corresponding path program 1 times [2019-09-10 08:24:58,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:24:58,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:58,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:24:58,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:58,691 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:24:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:24:59,621 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 08:24:59,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:24:59,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 08:24:59,622 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:24:59,622 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 08:24:59,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 08:24:59,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 08:24:59,623 INFO L87 Difference]: Start difference. First operand 1991 states and 2865 transitions. Second operand 19 states. [2019-09-10 08:25:00,205 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-09-10 08:25:00,415 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 08:25:00,712 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 08:25:01,024 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 08:25:01,207 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 08:25:01,589 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-10 08:25:01,895 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 08:25:02,075 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-10 08:25:02,336 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-10 08:25:03,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:03,025 INFO L93 Difference]: Finished difference Result 8697 states and 12744 transitions. [2019-09-10 08:25:03,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 08:25:03,026 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 109 [2019-09-10 08:25:03,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:03,034 INFO L225 Difference]: With dead ends: 8697 [2019-09-10 08:25:03,034 INFO L226 Difference]: Without dead ends: 8697 [2019-09-10 08:25:03,035 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 08:25:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2019-09-10 08:25:03,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 1981. [2019-09-10 08:25:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2019-09-10 08:25:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2853 transitions. [2019-09-10 08:25:03,099 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2853 transitions. Word has length 109 [2019-09-10 08:25:03,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:03,100 INFO L475 AbstractCegarLoop]: Abstraction has 1981 states and 2853 transitions. [2019-09-10 08:25:03,100 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 08:25:03,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2853 transitions. [2019-09-10 08:25:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:25:03,101 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:03,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:03,102 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:03,102 INFO L82 PathProgramCache]: Analyzing trace with hash 624948564, now seen corresponding path program 1 times [2019-09-10 08:25:03,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:03,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:03,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:03,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:03,104 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:04,394 WARN L188 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 08:25:05,024 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 08:25:05,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:05,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-09-10 08:25:05,024 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:05,024 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-10 08:25:05,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-10 08:25:05,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2019-09-10 08:25:05,025 INFO L87 Difference]: Start difference. First operand 1981 states and 2853 transitions. Second operand 24 states. [2019-09-10 08:25:06,259 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 08:25:06,505 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 08:25:06,857 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:25:08,165 WARN L188 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2019-09-10 08:25:10,534 WARN L188 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 134 DAG size of output: 121 [2019-09-10 08:25:10,787 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-09-10 08:25:11,045 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-09-10 08:25:11,337 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 08:25:11,633 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-10 08:25:11,852 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 08:25:12,040 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-10 08:25:12,309 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2019-09-10 08:25:12,563 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:25:12,991 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 08:25:13,231 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 08:25:13,593 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 08:25:15,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:15,231 INFO L93 Difference]: Finished difference Result 10421 states and 15267 transitions. [2019-09-10 08:25:15,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-09-10 08:25:15,232 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 109 [2019-09-10 08:25:15,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:15,240 INFO L225 Difference]: With dead ends: 10421 [2019-09-10 08:25:15,241 INFO L226 Difference]: Without dead ends: 10421 [2019-09-10 08:25:15,242 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=540, Invalid=2216, Unknown=0, NotChecked=0, Total=2756 [2019-09-10 08:25:15,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10421 states. [2019-09-10 08:25:15,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10421 to 2016. [2019-09-10 08:25:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2019-09-10 08:25:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2900 transitions. [2019-09-10 08:25:15,288 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2900 transitions. Word has length 109 [2019-09-10 08:25:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:15,288 INFO L475 AbstractCegarLoop]: Abstraction has 2016 states and 2900 transitions. [2019-09-10 08:25:15,288 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-10 08:25:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2900 transitions. [2019-09-10 08:25:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:25:15,290 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:15,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:15,293 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:15,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:15,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1552482483, now seen corresponding path program 1 times [2019-09-10 08:25:15,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:15,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:15,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:15,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:15,295 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:16,284 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 08:25:16,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:16,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 08:25:16,284 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:16,285 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 08:25:16,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 08:25:16,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2019-09-10 08:25:16,285 INFO L87 Difference]: Start difference. First operand 2016 states and 2900 transitions. Second operand 18 states. [2019-09-10 08:25:17,068 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-09-10 08:25:17,273 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 08:25:17,588 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 08:25:17,788 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 08:25:17,987 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 08:25:18,223 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 08:25:18,452 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 08:25:18,623 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 08:25:18,969 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-10 08:25:19,136 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 08:25:19,396 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-09-10 08:25:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:20,161 INFO L93 Difference]: Finished difference Result 12964 states and 19029 transitions. [2019-09-10 08:25:20,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 08:25:20,161 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 109 [2019-09-10 08:25:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:20,173 INFO L225 Difference]: With dead ends: 12964 [2019-09-10 08:25:20,173 INFO L226 Difference]: Without dead ends: 12964 [2019-09-10 08:25:20,174 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=298, Invalid=1108, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 08:25:20,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12964 states. [2019-09-10 08:25:20,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12964 to 2021. [2019-09-10 08:25:20,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2021 states. [2019-09-10 08:25:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2900 transitions. [2019-09-10 08:25:20,245 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2900 transitions. Word has length 109 [2019-09-10 08:25:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:20,246 INFO L475 AbstractCegarLoop]: Abstraction has 2021 states and 2900 transitions. [2019-09-10 08:25:20,246 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 08:25:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2900 transitions. [2019-09-10 08:25:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:25:20,247 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:20,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:20,248 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:20,248 INFO L82 PathProgramCache]: Analyzing trace with hash 568025461, now seen corresponding path program 1 times [2019-09-10 08:25:20,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:20,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:20,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:20,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:20,250 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:20,723 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-09-10 08:25:20,997 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 08:25:20,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:20,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 08:25:20,997 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:20,998 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 08:25:20,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 08:25:20,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:25:20,999 INFO L87 Difference]: Start difference. First operand 2021 states and 2900 transitions. Second operand 14 states. [2019-09-10 08:25:21,546 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2019-09-10 08:25:21,737 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-10 08:25:21,938 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-10 08:25:22,323 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-10 08:25:22,620 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 08:25:22,791 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2019-09-10 08:25:23,345 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2019-09-10 08:25:23,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:23,479 INFO L93 Difference]: Finished difference Result 10666 states and 15616 transitions. [2019-09-10 08:25:23,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 08:25:23,480 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 109 [2019-09-10 08:25:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:23,490 INFO L225 Difference]: With dead ends: 10666 [2019-09-10 08:25:23,490 INFO L226 Difference]: Without dead ends: 10666 [2019-09-10 08:25:23,491 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2019-09-10 08:25:23,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10666 states. [2019-09-10 08:25:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10666 to 1989. [2019-09-10 08:25:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1989 states. [2019-09-10 08:25:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2850 transitions. [2019-09-10 08:25:23,539 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2850 transitions. Word has length 109 [2019-09-10 08:25:23,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:23,540 INFO L475 AbstractCegarLoop]: Abstraction has 1989 states and 2850 transitions. [2019-09-10 08:25:23,540 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 08:25:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2850 transitions. [2019-09-10 08:25:23,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:25:23,541 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:23,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:23,541 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:23,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:23,542 INFO L82 PathProgramCache]: Analyzing trace with hash -528155211, now seen corresponding path program 1 times [2019-09-10 08:25:23,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:23,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:23,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:23,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:23,543 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:23,670 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 08:25:23,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:23,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 08:25:23,671 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:23,671 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 08:25:23,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 08:25:23,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 08:25:23,672 INFO L87 Difference]: Start difference. First operand 1989 states and 2850 transitions. Second operand 4 states. [2019-09-10 08:25:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:23,733 INFO L93 Difference]: Finished difference Result 2813 states and 4040 transitions. [2019-09-10 08:25:23,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:25:23,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2019-09-10 08:25:23,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:23,737 INFO L225 Difference]: With dead ends: 2813 [2019-09-10 08:25:23,738 INFO L226 Difference]: Without dead ends: 2813 [2019-09-10 08:25:23,738 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:25:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2019-09-10 08:25:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2798. [2019-09-10 08:25:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2798 states. [2019-09-10 08:25:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4026 transitions. [2019-09-10 08:25:23,770 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4026 transitions. Word has length 109 [2019-09-10 08:25:23,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:23,770 INFO L475 AbstractCegarLoop]: Abstraction has 2798 states and 4026 transitions. [2019-09-10 08:25:23,770 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 08:25:23,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4026 transitions. [2019-09-10 08:25:23,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:25:23,772 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:23,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:23,772 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:23,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:23,772 INFO L82 PathProgramCache]: Analyzing trace with hash -9510182, now seen corresponding path program 1 times [2019-09-10 08:25:23,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:23,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:23,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:23,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:23,774 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:24,270 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2019-09-10 08:25:24,592 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2019-09-10 08:25:24,844 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 08:25:25,418 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 08:25:25,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:25,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-09-10 08:25:25,419 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:25,420 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 08:25:25,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 08:25:25,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2019-09-10 08:25:25,420 INFO L87 Difference]: Start difference. First operand 2798 states and 4026 transitions. Second operand 21 states. [2019-09-10 08:25:25,577 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2019-09-10 08:25:26,052 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-09-10 08:25:26,191 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2019-09-10 08:25:26,485 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2019-09-10 08:25:26,790 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2019-09-10 08:25:27,106 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:25:27,529 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2019-09-10 08:25:27,958 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 98 [2019-09-10 08:25:28,330 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2019-09-10 08:25:28,598 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 08:25:28,836 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-10 08:25:29,176 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 08:25:29,388 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 08:25:29,790 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 08:25:30,101 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-10 08:25:30,601 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2019-09-10 08:25:30,885 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 08:25:31,056 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 08:25:31,476 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2019-09-10 08:25:31,745 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 08:25:32,165 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2019-09-10 08:25:32,336 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 08:25:32,565 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-10 08:25:32,888 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 08:25:33,071 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-10 08:25:33,455 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2019-09-10 08:25:33,643 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 08:25:34,964 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 08:25:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:35,355 INFO L93 Difference]: Finished difference Result 22182 states and 32508 transitions. [2019-09-10 08:25:35,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 08:25:35,356 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 109 [2019-09-10 08:25:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:35,375 INFO L225 Difference]: With dead ends: 22182 [2019-09-10 08:25:35,375 INFO L226 Difference]: Without dead ends: 22182 [2019-09-10 08:25:35,376 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=545, Invalid=2317, Unknown=0, NotChecked=0, Total=2862 [2019-09-10 08:25:35,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22182 states. [2019-09-10 08:25:35,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22182 to 2792. [2019-09-10 08:25:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2792 states. [2019-09-10 08:25:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4017 transitions. [2019-09-10 08:25:35,515 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4017 transitions. Word has length 109 [2019-09-10 08:25:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:35,515 INFO L475 AbstractCegarLoop]: Abstraction has 2792 states and 4017 transitions. [2019-09-10 08:25:35,515 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-10 08:25:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4017 transitions. [2019-09-10 08:25:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:25:35,517 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:35,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:35,517 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:35,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:35,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1506480954, now seen corresponding path program 1 times [2019-09-10 08:25:35,518 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:35,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:35,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:35,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:35,519 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:35,991 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 08:25:35,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:35,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 08:25:35,991 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:35,992 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 08:25:35,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 08:25:35,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-09-10 08:25:35,992 INFO L87 Difference]: Start difference. First operand 2792 states and 4017 transitions. Second operand 11 states. [2019-09-10 08:25:36,400 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2019-09-10 08:25:36,580 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-09-10 08:25:36,743 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-10 08:25:36,887 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-09-10 08:25:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:37,305 INFO L93 Difference]: Finished difference Result 9758 states and 14268 transitions. [2019-09-10 08:25:37,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 08:25:37,306 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 109 [2019-09-10 08:25:37,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:37,314 INFO L225 Difference]: With dead ends: 9758 [2019-09-10 08:25:37,314 INFO L226 Difference]: Without dead ends: 9758 [2019-09-10 08:25:37,314 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-09-10 08:25:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9758 states. [2019-09-10 08:25:37,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9758 to 2612. [2019-09-10 08:25:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2612 states. [2019-09-10 08:25:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 3768 transitions. [2019-09-10 08:25:37,365 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 3768 transitions. Word has length 109 [2019-09-10 08:25:37,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:37,365 INFO L475 AbstractCegarLoop]: Abstraction has 2612 states and 3768 transitions. [2019-09-10 08:25:37,365 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 08:25:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 3768 transitions. [2019-09-10 08:25:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:25:37,366 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:37,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:37,366 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash -584523345, now seen corresponding path program 1 times [2019-09-10 08:25:37,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:37,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:37,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:37,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:37,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:37,891 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 08:25:37,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:37,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 08:25:37,891 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:37,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 08:25:37,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 08:25:37,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-09-10 08:25:37,892 INFO L87 Difference]: Start difference. First operand 2612 states and 3768 transitions. Second operand 13 states. [2019-09-10 08:25:38,224 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-09-10 08:25:38,372 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 08:25:38,530 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 08:25:38,843 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-10 08:25:39,053 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-10 08:25:39,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:39,426 INFO L93 Difference]: Finished difference Result 9817 states and 14340 transitions. [2019-09-10 08:25:39,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 08:25:39,427 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 110 [2019-09-10 08:25:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:39,434 INFO L225 Difference]: With dead ends: 9817 [2019-09-10 08:25:39,434 INFO L226 Difference]: Without dead ends: 9817 [2019-09-10 08:25:39,435 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2019-09-10 08:25:39,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2019-09-10 08:25:39,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 2571. [2019-09-10 08:25:39,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2571 states. [2019-09-10 08:25:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3716 transitions. [2019-09-10 08:25:39,483 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3716 transitions. Word has length 110 [2019-09-10 08:25:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:39,484 INFO L475 AbstractCegarLoop]: Abstraction has 2571 states and 3716 transitions. [2019-09-10 08:25:39,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 08:25:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3716 transitions. [2019-09-10 08:25:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:25:39,485 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:39,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:39,486 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:39,487 INFO L82 PathProgramCache]: Analyzing trace with hash 639012882, now seen corresponding path program 1 times [2019-09-10 08:25:39,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:39,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:39,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:39,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:39,488 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:40,027 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 08:25:40,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:40,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 08:25:40,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:40,028 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 08:25:40,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 08:25:40,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-10 08:25:40,028 INFO L87 Difference]: Start difference. First operand 2571 states and 3716 transitions. Second operand 13 states. [2019-09-10 08:25:40,559 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-10 08:25:40,777 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-10 08:25:41,015 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-10 08:25:41,390 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 08:25:41,675 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 08:25:41,853 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 08:25:42,357 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 08:25:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:42,446 INFO L93 Difference]: Finished difference Result 12130 states and 17758 transitions. [2019-09-10 08:25:42,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 08:25:42,446 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 110 [2019-09-10 08:25:42,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:42,457 INFO L225 Difference]: With dead ends: 12130 [2019-09-10 08:25:42,457 INFO L226 Difference]: Without dead ends: 12130 [2019-09-10 08:25:42,457 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2019-09-10 08:25:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12130 states. [2019-09-10 08:25:42,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12130 to 2550. [2019-09-10 08:25:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2550 states. [2019-09-10 08:25:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3689 transitions. [2019-09-10 08:25:42,519 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3689 transitions. Word has length 110 [2019-09-10 08:25:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:42,519 INFO L475 AbstractCegarLoop]: Abstraction has 2550 states and 3689 transitions. [2019-09-10 08:25:42,520 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 08:25:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3689 transitions. [2019-09-10 08:25:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:25:42,521 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:42,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:42,521 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:42,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1373745039, now seen corresponding path program 1 times [2019-09-10 08:25:42,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:42,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:42,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:42,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:42,523 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:43,563 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 08:25:43,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:43,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 08:25:43,563 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:43,563 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 08:25:43,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 08:25:43,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 08:25:43,564 INFO L87 Difference]: Start difference. First operand 2550 states and 3689 transitions. Second operand 19 states. [2019-09-10 08:25:44,335 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:25:44,612 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 08:25:44,947 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-09-10 08:25:45,124 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 08:25:45,473 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 08:25:45,734 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-10 08:25:45,926 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-09-10 08:25:46,134 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-09-10 08:25:46,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:46,897 INFO L93 Difference]: Finished difference Result 12013 states and 17587 transitions. [2019-09-10 08:25:46,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 08:25:46,898 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 110 [2019-09-10 08:25:46,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:46,907 INFO L225 Difference]: With dead ends: 12013 [2019-09-10 08:25:46,908 INFO L226 Difference]: Without dead ends: 12013 [2019-09-10 08:25:46,908 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 08:25:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12013 states. [2019-09-10 08:25:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12013 to 2542. [2019-09-10 08:25:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2542 states. [2019-09-10 08:25:46,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 3679 transitions. [2019-09-10 08:25:46,975 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 3679 transitions. Word has length 110 [2019-09-10 08:25:46,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:46,976 INFO L475 AbstractCegarLoop]: Abstraction has 2542 states and 3679 transitions. [2019-09-10 08:25:46,976 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 08:25:46,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 3679 transitions. [2019-09-10 08:25:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:25:46,977 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:46,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:46,977 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:46,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:46,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1243814062, now seen corresponding path program 1 times [2019-09-10 08:25:46,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:46,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:46,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:46,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:46,979 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:47,553 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-10 08:25:47,791 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 08:25:47,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:47,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 08:25:47,792 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:47,792 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 08:25:47,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 08:25:47,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:25:47,793 INFO L87 Difference]: Start difference. First operand 2542 states and 3679 transitions. Second operand 14 states. [2019-09-10 08:25:48,406 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-10 08:25:48,559 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-10 08:25:48,702 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 08:25:48,911 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 08:25:49,123 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-09-10 08:25:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:25:49,478 INFO L93 Difference]: Finished difference Result 9747 states and 14254 transitions. [2019-09-10 08:25:49,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 08:25:49,478 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 110 [2019-09-10 08:25:49,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:25:49,485 INFO L225 Difference]: With dead ends: 9747 [2019-09-10 08:25:49,486 INFO L226 Difference]: Without dead ends: 9747 [2019-09-10 08:25:49,486 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:25:49,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9747 states. [2019-09-10 08:25:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9747 to 2510. [2019-09-10 08:25:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2510 states. [2019-09-10 08:25:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3640 transitions. [2019-09-10 08:25:49,571 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3640 transitions. Word has length 110 [2019-09-10 08:25:49,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:25:49,571 INFO L475 AbstractCegarLoop]: Abstraction has 2510 states and 3640 transitions. [2019-09-10 08:25:49,571 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 08:25:49,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3640 transitions. [2019-09-10 08:25:49,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:25:49,572 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:25:49,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:25:49,572 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:25:49,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:25:49,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1636111030, now seen corresponding path program 1 times [2019-09-10 08:25:49,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:25:49,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:49,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:25:49,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:25:49,574 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:25:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:25:50,433 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-10 08:25:50,575 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-10 08:25:50,725 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-09-10 08:25:51,199 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-10 08:25:51,598 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2019-09-10 08:25:51,748 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 08:25:51,902 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-10 08:25:52,096 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 08:25:53,989 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 08:25:53,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:25:53,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2019-09-10 08:25:53,989 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:25:53,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-10 08:25:53,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-10 08:25:53,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1310, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 08:25:53,991 INFO L87 Difference]: Start difference. First operand 2510 states and 3640 transitions. Second operand 38 states. [2019-09-10 08:25:54,362 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2019-09-10 08:25:55,224 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2019-09-10 08:25:55,435 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2019-09-10 08:25:55,681 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-09-10 08:25:55,945 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2019-09-10 08:25:56,288 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-10 08:25:56,651 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2019-09-10 08:25:57,352 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2019-09-10 08:25:57,702 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2019-09-10 08:25:58,047 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2019-09-10 08:25:58,405 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2019-09-10 08:25:58,842 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 88 [2019-09-10 08:25:59,311 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 98 [2019-09-10 08:25:59,886 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 109 [2019-09-10 08:26:00,468 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 118 [2019-09-10 08:26:01,231 WARN L188 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 139 [2019-09-10 08:26:02,052 WARN L188 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 155 [2019-09-10 08:26:02,998 WARN L188 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 165 [2019-09-10 08:26:03,365 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2019-09-10 08:26:03,718 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2019-09-10 08:26:04,081 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2019-09-10 08:26:04,484 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 87 [2019-09-10 08:26:04,780 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 51 [2019-09-10 08:26:05,117 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 81 [2019-09-10 08:26:05,502 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 08:26:05,764 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-10 08:26:06,199 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-10 08:26:06,614 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-10 08:26:07,282 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2019-09-10 08:26:08,213 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-10 08:26:08,733 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2019-09-10 08:26:10,080 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2019-09-10 08:26:10,770 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-10 08:26:11,046 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2019-09-10 08:26:11,438 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2019-09-10 08:26:11,888 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-10 08:26:12,372 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2019-09-10 08:26:15,152 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2019-09-10 08:26:16,809 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2019-09-10 08:26:32,241 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2019-09-10 08:26:32,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:32,310 INFO L93 Difference]: Finished difference Result 45608 states and 67084 transitions. [2019-09-10 08:26:32,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-09-10 08:26:32,310 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 110 [2019-09-10 08:26:32,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:32,347 INFO L225 Difference]: With dead ends: 45608 [2019-09-10 08:26:32,347 INFO L226 Difference]: Without dead ends: 45608 [2019-09-10 08:26:32,349 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1733 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=1296, Invalid=6894, Unknown=0, NotChecked=0, Total=8190 [2019-09-10 08:26:32,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45608 states. [2019-09-10 08:26:32,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45608 to 2522. [2019-09-10 08:26:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2522 states. [2019-09-10 08:26:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3655 transitions. [2019-09-10 08:26:32,994 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3655 transitions. Word has length 110 [2019-09-10 08:26:32,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:32,995 INFO L475 AbstractCegarLoop]: Abstraction has 2522 states and 3655 transitions. [2019-09-10 08:26:32,995 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-10 08:26:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3655 transitions. [2019-09-10 08:26:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-10 08:26:32,995 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:32,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:26:32,996 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:32,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:32,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1800056775, now seen corresponding path program 1 times [2019-09-10 08:26:32,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:32,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:32,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:32,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:32,997 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:33,557 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 08:26:33,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:33,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 08:26:33,558 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:33,558 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 08:26:33,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 08:26:33,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:26:33,559 INFO L87 Difference]: Start difference. First operand 2522 states and 3655 transitions. Second operand 14 states. [2019-09-10 08:26:33,683 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-09-10 08:26:34,194 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2019-09-10 08:26:34,446 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 08:26:34,740 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-10 08:26:35,038 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-10 08:26:35,482 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-10 08:26:35,729 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 08:26:35,983 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 08:26:36,555 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 08:26:36,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:36,684 INFO L93 Difference]: Finished difference Result 12042 states and 17648 transitions. [2019-09-10 08:26:36,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 08:26:36,684 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 111 [2019-09-10 08:26:36,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:36,693 INFO L225 Difference]: With dead ends: 12042 [2019-09-10 08:26:36,693 INFO L226 Difference]: Without dead ends: 12042 [2019-09-10 08:26:36,694 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2019-09-10 08:26:36,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12042 states. [2019-09-10 08:26:36,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12042 to 2484. [2019-09-10 08:26:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2484 states. [2019-09-10 08:26:36,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3608 transitions. [2019-09-10 08:26:36,739 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3608 transitions. Word has length 111 [2019-09-10 08:26:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:36,739 INFO L475 AbstractCegarLoop]: Abstraction has 2484 states and 3608 transitions. [2019-09-10 08:26:36,739 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 08:26:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3608 transitions. [2019-09-10 08:26:36,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-10 08:26:36,740 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:36,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:26:36,741 INFO L418 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:36,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:36,741 INFO L82 PathProgramCache]: Analyzing trace with hash 105892615, now seen corresponding path program 1 times [2019-09-10 08:26:36,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:36,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:36,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:36,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:36,742 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:36,813 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 08:26:36,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:36,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:26:36,814 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:36,814 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:26:36,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:26:36,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:26:36,815 INFO L87 Difference]: Start difference. First operand 2484 states and 3608 transitions. Second operand 3 states. [2019-09-10 08:26:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:36,844 INFO L93 Difference]: Finished difference Result 4713 states and 6807 transitions. [2019-09-10 08:26:36,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:26:36,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2019-09-10 08:26:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:36,850 INFO L225 Difference]: With dead ends: 4713 [2019-09-10 08:26:36,850 INFO L226 Difference]: Without dead ends: 4713 [2019-09-10 08:26:36,850 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 08:26:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4713 states. [2019-09-10 08:26:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4713 to 4563. [2019-09-10 08:26:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4563 states. [2019-09-10 08:26:36,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 6621 transitions. [2019-09-10 08:26:36,885 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 6621 transitions. Word has length 141 [2019-09-10 08:26:36,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:36,885 INFO L475 AbstractCegarLoop]: Abstraction has 4563 states and 6621 transitions. [2019-09-10 08:26:36,885 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:26:36,885 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 6621 transitions. [2019-09-10 08:26:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 08:26:36,886 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:36,886 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:26:36,887 INFO L418 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:36,887 INFO L82 PathProgramCache]: Analyzing trace with hash -509787595, now seen corresponding path program 1 times [2019-09-10 08:26:36,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:36,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:36,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:36,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:36,888 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:36,962 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 08:26:36,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:36,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:26:36,962 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:36,963 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:26:36,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:26:36,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:26:36,963 INFO L87 Difference]: Start difference. First operand 4563 states and 6621 transitions. Second operand 3 states. [2019-09-10 08:26:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:36,996 INFO L93 Difference]: Finished difference Result 8723 states and 12537 transitions. [2019-09-10 08:26:36,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:26:36,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-09-10 08:26:36,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:37,006 INFO L225 Difference]: With dead ends: 8723 [2019-09-10 08:26:37,006 INFO L226 Difference]: Without dead ends: 8723 [2019-09-10 08:26:37,006 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 08:26:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8723 states. [2019-09-10 08:26:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8723 to 8425. [2019-09-10 08:26:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8425 states. [2019-09-10 08:26:37,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8425 states to 8425 states and 12166 transitions. [2019-09-10 08:26:37,080 INFO L78 Accepts]: Start accepts. Automaton has 8425 states and 12166 transitions. Word has length 142 [2019-09-10 08:26:37,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:37,081 INFO L475 AbstractCegarLoop]: Abstraction has 8425 states and 12166 transitions. [2019-09-10 08:26:37,081 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:26:37,081 INFO L276 IsEmpty]: Start isEmpty. Operand 8425 states and 12166 transitions. [2019-09-10 08:26:37,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-09-10 08:26:37,082 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:37,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:26:37,083 INFO L418 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:37,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:37,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1396297160, now seen corresponding path program 1 times [2019-09-10 08:26:37,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:37,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:37,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:37,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:37,085 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:37,143 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 08:26:37,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:37,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:26:37,144 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:37,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:26:37,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:26:37,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:26:37,145 INFO L87 Difference]: Start difference. First operand 8425 states and 12166 transitions. Second operand 3 states. [2019-09-10 08:26:37,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:37,189 INFO L93 Difference]: Finished difference Result 16151 states and 23035 transitions. [2019-09-10 08:26:37,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:26:37,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-09-10 08:26:37,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:37,248 INFO L225 Difference]: With dead ends: 16151 [2019-09-10 08:26:37,248 INFO L226 Difference]: Without dead ends: 16151 [2019-09-10 08:26:37,248 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 08:26:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16151 states. [2019-09-10 08:26:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16151 to 15557. [2019-09-10 08:26:37,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15557 states. [2019-09-10 08:26:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15557 states to 15557 states and 22294 transitions. [2019-09-10 08:26:37,361 INFO L78 Accepts]: Start accepts. Automaton has 15557 states and 22294 transitions. Word has length 143 [2019-09-10 08:26:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:37,361 INFO L475 AbstractCegarLoop]: Abstraction has 15557 states and 22294 transitions. [2019-09-10 08:26:37,361 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:26:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 15557 states and 22294 transitions. [2019-09-10 08:26:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-10 08:26:37,363 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:37,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:26:37,364 INFO L418 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:37,364 INFO L82 PathProgramCache]: Analyzing trace with hash -523481560, now seen corresponding path program 1 times [2019-09-10 08:26:37,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:37,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:37,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:37,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:37,366 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:37,427 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 08:26:37,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:37,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:26:37,427 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:37,428 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:26:37,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:26:37,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:26:37,428 INFO L87 Difference]: Start difference. First operand 15557 states and 22294 transitions. Second operand 3 states. [2019-09-10 08:26:37,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:37,507 INFO L93 Difference]: Finished difference Result 29823 states and 42107 transitions. [2019-09-10 08:26:37,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:26:37,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-09-10 08:26:37,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:37,531 INFO L225 Difference]: With dead ends: 29823 [2019-09-10 08:26:37,531 INFO L226 Difference]: Without dead ends: 29823 [2019-09-10 08:26:37,531 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 08:26:37,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29823 states. [2019-09-10 08:26:37,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29823 to 28637. [2019-09-10 08:26:37,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28637 states. [2019-09-10 08:26:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28637 states to 28637 states and 40626 transitions. [2019-09-10 08:26:37,864 INFO L78 Accepts]: Start accepts. Automaton has 28637 states and 40626 transitions. Word has length 144 [2019-09-10 08:26:37,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:37,864 INFO L475 AbstractCegarLoop]: Abstraction has 28637 states and 40626 transitions. [2019-09-10 08:26:37,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:26:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 28637 states and 40626 transitions. [2019-09-10 08:26:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-10 08:26:37,865 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:37,865 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, 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 08:26:37,865 INFO L418 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:37,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:37,866 INFO L82 PathProgramCache]: Analyzing trace with hash 814685857, now seen corresponding path program 1 times [2019-09-10 08:26:37,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:37,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:37,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:37,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:37,867 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:37,932 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 08:26:37,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:37,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:26:37,933 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:37,933 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:26:37,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:26:37,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:26:37,934 INFO L87 Difference]: Start difference. First operand 28637 states and 40626 transitions. Second operand 3 states. [2019-09-10 08:26:38,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:38,037 INFO L93 Difference]: Finished difference Result 40011 states and 56352 transitions. [2019-09-10 08:26:38,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:26:38,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-09-10 08:26:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:38,078 INFO L225 Difference]: With dead ends: 40011 [2019-09-10 08:26:38,079 INFO L226 Difference]: Without dead ends: 40011 [2019-09-10 08:26:38,079 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 08:26:38,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40011 states. [2019-09-10 08:26:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40011 to 38405. [2019-09-10 08:26:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38405 states. [2019-09-10 08:26:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38405 states to 38405 states and 54346 transitions. [2019-09-10 08:26:39,110 INFO L78 Accepts]: Start accepts. Automaton has 38405 states and 54346 transitions. Word has length 145 [2019-09-10 08:26:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:39,110 INFO L475 AbstractCegarLoop]: Abstraction has 38405 states and 54346 transitions. [2019-09-10 08:26:39,110 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:26:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 38405 states and 54346 transitions. [2019-09-10 08:26:39,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-10 08:26:39,111 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:39,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:26:39,112 INFO L418 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:39,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:39,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1733689799, now seen corresponding path program 1 times [2019-09-10 08:26:39,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:39,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:39,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:39,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:39,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:39,218 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 08:26:39,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:39,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 08:26:39,219 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:39,219 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 08:26:39,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 08:26:39,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 08:26:39,220 INFO L87 Difference]: Start difference. First operand 38405 states and 54346 transitions. Second operand 7 states. [2019-09-10 08:26:40,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:40,104 INFO L93 Difference]: Finished difference Result 97512 states and 135390 transitions. [2019-09-10 08:26:40,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 08:26:40,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2019-09-10 08:26:40,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:40,189 INFO L225 Difference]: With dead ends: 97512 [2019-09-10 08:26:40,189 INFO L226 Difference]: Without dead ends: 97512 [2019-09-10 08:26:40,189 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 08:26:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97512 states. [2019-09-10 08:26:40,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97512 to 42014. [2019-09-10 08:26:40,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42014 states. [2019-09-10 08:26:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42014 states to 42014 states and 59158 transitions. [2019-09-10 08:26:40,948 INFO L78 Accepts]: Start accepts. Automaton has 42014 states and 59158 transitions. Word has length 145 [2019-09-10 08:26:40,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:40,949 INFO L475 AbstractCegarLoop]: Abstraction has 42014 states and 59158 transitions. [2019-09-10 08:26:40,949 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 08:26:40,949 INFO L276 IsEmpty]: Start isEmpty. Operand 42014 states and 59158 transitions. [2019-09-10 08:26:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-10 08:26:40,956 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:40,956 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 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 08:26:40,956 INFO L418 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:40,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1804548595, now seen corresponding path program 1 times [2019-09-10 08:26:40,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:40,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:40,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:40,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:40,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:41,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-10 08:26:41,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:26:41,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:26:41,029 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:26:41,029 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:26:41,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:26:41,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:26:41,029 INFO L87 Difference]: Start difference. First operand 42014 states and 59158 transitions. Second operand 3 states. [2019-09-10 08:26:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:26:41,160 INFO L93 Difference]: Finished difference Result 79501 states and 109778 transitions. [2019-09-10 08:26:41,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:26:41,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2019-09-10 08:26:41,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:26:41,228 INFO L225 Difference]: With dead ends: 79501 [2019-09-10 08:26:41,228 INFO L226 Difference]: Without dead ends: 79501 [2019-09-10 08:26:41,229 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 08:26:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79501 states. [2019-09-10 08:26:43,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79501 to 73893. [2019-09-10 08:26:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73893 states. [2019-09-10 08:26:43,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73893 states to 73893 states and 102970 transitions. [2019-09-10 08:26:43,131 INFO L78 Accepts]: Start accepts. Automaton has 73893 states and 102970 transitions. Word has length 176 [2019-09-10 08:26:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:26:43,131 INFO L475 AbstractCegarLoop]: Abstraction has 73893 states and 102970 transitions. [2019-09-10 08:26:43,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:26:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 73893 states and 102970 transitions. [2019-09-10 08:26:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-10 08:26:43,140 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:26:43,140 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 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 08:26:43,140 INFO L418 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:26:43,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:43,141 INFO L82 PathProgramCache]: Analyzing trace with hash -907484293, now seen corresponding path program 1 times [2019-09-10 08:26:43,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:26:43,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:43,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:43,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:26:43,142 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:26:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:26:43,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:26:43,440 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 08:26:43,441 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2019-09-10 08:26:43,443 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], [102], [105], [108], [111], [114], [117], [120], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [163], [166], [169], [171], [175], [178], [181], [183], [187], [190], [193], [195], [198], [202], [205], [208], [212], [215], [219], [222], [225], [227], [230], [233], [236], [238], [241], [244], [247], [249], [252], [255], [258], [260], [263], [266], [269], [271], [274], [277], [280], [282], [284], [287], [290], [294], [296], [299], [300], [302], [305], [310], [318], [320], [323], [331], [333], [336], [344], [346], [349], [357], [359], [362], [370], [372], [375], [383], [393], [395], [398], [401], [403], [418], [420], [423], [426], [428], [443], [445], [448], [451], [453], [468], [470], [473], [476], [478], [493], [495], [498], [501], [503], [518], [520], [522], [525], [528], [530], [538], [543], [545], [548], [677], [678], [682], [683], [684] [2019-09-10 08:26:43,486 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 08:26:43,486 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 08:26:43,608 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 08:26:44,698 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 08:26:44,702 INFO L272 AbstractInterpreter]: Visited 162 different actions 1006 times. Merged at 60 different actions 728 times. Widened at 23 different actions 107 times. Performed 3581 root evaluator evaluations with a maximum evaluation depth of 8. Performed 3581 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 124 fixpoints after 22 different actions. Largest state had 176 variables. [2019-09-10 08:26:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:26:44,708 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 08:26:44,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:26:44,708 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 08:26:44,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:26:44,737 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 08:26:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:26:45,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 20 conjunts are in the unsatisfiable core [2019-09-10 08:26:45,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 08:26:45,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:45,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:26:45,936 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 08:26:46,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,262 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,262 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,263 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:46,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:49,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:26:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:26:49,789 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 08:26:49,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 29 [2019-09-10 08:26:49,789 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 08:26:49,790 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 08:26:49,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 08:26:49,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2019-09-10 08:26:49,791 INFO L87 Difference]: Start difference. First operand 73893 states and 102970 transitions. Second operand 20 states. [2019-09-10 08:26:49,984 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-10 08:26:50,640 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2019-09-10 08:26:51,356 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-10 08:26:51,665 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-10 08:26:52,055 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 08:26:52,592 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 08:26:52,864 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 08:26:53,256 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-10 08:26:53,648 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 08:26:53,817 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 08:26:53,979 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 08:26:54,133 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-09-10 08:26:54,385 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:26:54,631 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 08:26:54,831 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:26:55,098 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 08:26:55,494 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:26:55,758 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 08:26:56,038 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:26:56,231 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:26:56,439 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 08:26:56,656 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:26:56,824 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 08:26:57,042 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-09-10 08:26:57,521 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:26:57,690 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:26:57,879 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-10 08:26:58,029 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 08:26:58,649 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:26:58,887 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 08:26:59,103 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:26:59,333 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 08:26:59,533 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-10 08:26:59,808 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:27:00,014 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:27:00,222 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:27:00,570 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:27:00,890 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:27:01,228 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:27:01,724 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:27:01,970 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:27:02,240 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 08:27:03,447 WARN L188 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 08:27:03,700 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:27:04,053 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:27:04,358 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:27:04,593 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 08:27:04,971 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:27:05,314 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:27:05,590 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 08:27:05,865 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:27:06,198 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:27:06,464 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:27:06,781 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 08:27:07,080 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:27:07,297 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:27:07,728 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:27:08,088 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 08:27:08,311 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:27:08,666 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:27:09,105 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 08:27:09,657 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:27:09,924 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:27:10,200 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:27:10,451 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 08:27:10,855 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:27:11,193 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:27:11,492 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:27:11,709 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:27:12,050 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:27:12,254 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:27:12,712 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:27:13,161 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:27:13,433 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:27:13,700 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:27:13,978 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:27:14,262 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:27:14,535 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:27:14,842 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:27:15,102 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:27:15,354 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-10 08:27:15,587 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 08:27:15,945 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:27:16,208 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:27:16,467 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:27:16,726 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:27:17,155 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:27:17,562 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:27:17,895 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:27:18,237 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:27:18,625 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:27:18,957 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:27:19,182 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:27:19,411 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:27:19,816 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:27:20,166 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:27:20,529 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-10 08:27:20,975 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 08:27:21,264 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:27:21,492 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:27:21,705 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 08:27:21,976 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:27:22,218 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:27:22,546 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 08:27:22,789 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 08:27:23,126 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 08:27:23,440 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:27:23,749 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 08:27:24,055 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:27:24,386 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 08:27:24,689 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:27:24,985 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:27:25,203 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:27:25,429 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:27:25,689 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:27:26,007 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:27:26,510 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:27:26,907 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:27:27,215 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:27:27,510 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:27:27,798 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:27:28,167 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:27:28,686 WARN L188 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:27:28,991 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:27:29,369 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:27:29,638 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:27:29,974 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:27:30,236 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2019-09-10 08:27:30,547 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:27:30,821 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:27:31,160 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:27:31,456 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:27:31,738 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:27:31,961 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:27:32,158 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:27:32,412 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 08:27:32,751 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:27:33,448 WARN L188 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2019-09-10 08:27:33,730 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-10 08:27:33,948 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-10 08:27:34,268 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 08:27:34,747 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:27:35,096 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:27:35,345 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:27:35,722 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-10 08:27:35,992 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:27:36,293 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-10 08:27:36,550 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:27:36,795 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:27:37,246 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:27:37,618 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:27:37,969 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:27:38,316 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:27:38,575 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:27:38,895 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:27:39,167 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:27:39,502 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:27:39,739 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:27:40,038 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:27:40,370 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:27:40,752 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:27:41,026 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:27:41,367 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:27:41,613 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:27:41,896 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:27:42,234 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:27:42,873 WARN L188 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 08:27:43,307 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 08:27:43,501 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-10 08:27:43,717 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 08:27:44,163 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:27:44,480 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:27:44,724 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:27:44,984 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:27:45,322 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:27:45,832 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:27:46,160 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:27:46,564 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:27:46,869 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:27:47,174 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:27:47,639 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:27:47,988 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:27:48,208 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:27:48,586 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:27:48,816 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:27:49,280 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-10 08:27:49,600 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:27:49,834 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:27:50,084 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:27:50,313 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:27:50,545 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:27:50,787 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:27:50,959 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 08:27:51,212 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 08:27:51,502 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-10 08:27:51,730 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 08:27:52,123 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:27:52,436 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:27:52,811 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:27:53,021 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:27:53,824 WARN L188 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:27:54,292 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:27:54,569 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:27:54,932 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:27:55,476 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:27:55,705 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:27:56,038 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:27:56,405 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:27:56,618 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:27:56,825 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:27:57,075 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 08:27:57,320 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:27:57,659 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:27:58,080 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 08:27:58,430 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:27:58,709 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:27:59,572 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:27:59,829 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:28:09,650 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:28:10,465 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:28:10,765 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:28:11,112 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:28:11,489 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 08:28:11,892 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 08:28:12,258 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 08:28:12,641 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:28:12,923 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:28:13,171 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:28:13,547 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:28:13,863 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 08:28:14,215 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:28:14,594 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:28:14,999 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:28:15,284 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2019-09-10 08:28:15,593 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:28:15,851 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:28:16,118 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-10 08:28:16,398 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:28:16,733 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 08:28:16,992 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:28:17,256 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:28:17,570 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-10 08:28:17,852 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 08:28:18,117 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:28:18,505 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:28:18,762 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:28:19,000 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:28:19,285 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 08:28:19,568 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:28:19,861 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-10 08:28:20,216 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:28:20,490 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:28:20,882 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:28:21,174 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:28:21,426 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:28:21,681 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:28:21,933 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:28:22,193 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 08:28:22,466 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:28:22,707 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:28:22,965 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-10 08:28:23,217 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:28:23,485 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:28:23,770 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:28:23,976 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:28:24,158 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 08:28:24,401 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:28:24,638 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:28:24,894 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:28:25,117 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:28:25,368 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:28:25,637 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:28:25,889 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:28:26,162 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:28:26,576 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-10 08:28:26,828 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:28:27,148 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:28:27,514 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:28:27,871 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-10 08:28:28,134 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 08:28:28,364 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 08:28:28,614 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 08:28:28,863 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-10 08:28:29,235 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 08:28:29,459 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 08:28:29,769 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 08:28:30,062 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-10 08:28:30,283 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:28:30,542 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-10 08:28:30,926 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2019-09-10 08:28:31,199 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:28:31,442 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:28:31,653 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 08:28:31,926 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:28:32,257 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 08:28:32,681 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:28:33,016 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:28:33,233 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 08:28:33,455 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:28:33,811 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 08:28:34,190 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 08:28:34,561 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:28:34,970 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2019-09-10 08:28:35,472 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:28:35,688 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 08:28:35,898 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:28:36,583 WARN L188 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-10 08:28:36,925 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-09-10 08:28:37,182 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:28:37,459 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:28:37,744 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:28:38,137 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2019-09-10 08:28:38,503 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:28:38,883 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:28:39,149 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-10 08:28:39,437 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 08:28:39,784 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 08:28:40,093 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:28:40,642 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2019-09-10 08:28:41,021 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:28:41,341 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-10 08:28:41,716 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:28:42,112 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:28:42,402 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-10 08:28:42,896 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:28:43,153 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 08:28:43,418 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 08:28:43,778 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 08:28:44,069 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:28:44,378 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-10 08:28:44,856 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2019-09-10 08:28:45,148 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 08:28:45,458 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 08:28:45,775 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:28:46,114 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:28:46,485 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:28:46,918 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2019-09-10 08:28:47,192 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 08:28:47,526 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2019-09-10 08:28:48,096 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2019-09-10 08:28:48,395 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:28:48,675 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2019-09-10 08:28:49,012 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-10 08:28:49,406 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:28:49,723 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-10 08:28:50,037 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:28:50,329 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 08:28:50,632 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 08:28:51,039 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2019-09-10 08:28:51,371 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 08:28:51,621 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:28:51,892 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2019-09-10 08:28:52,183 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:28:52,443 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-10 08:28:52,805 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-10 08:28:53,179 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-10 08:28:53,630 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:28:54,215 WARN L188 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-10 08:28:54,495 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2019-09-10 08:28:54,941 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:28:55,363 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 08:28:55,898 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 08:28:56,376 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:28:56,913 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-10 08:28:57,521 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-10 08:28:57,946 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:28:58,537 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-10 08:28:59,108 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:29:00,236 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:29:00,700 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:29:00,988 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:29:01,347 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:29:01,608 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:29:01,964 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:29:02,190 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 08:29:02,748 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:29:02,992 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 08:29:03,256 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 08:29:03,724 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:29:03,987 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:29:04,364 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:29:04,634 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-10 08:29:04,930 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:29:05,236 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:29:05,589 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:29:05,851 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:29:06,250 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 08:29:06,470 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 08:29:06,884 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 08:29:07,137 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 08:29:07,366 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 08:29:07,624 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 08:29:07,888 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 08:29:08,198 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 08:29:08,444 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 08:29:08,770 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:29:09,272 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-09-10 08:29:09,910 WARN L188 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 08:29:10,312 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:29:10,546 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-09-10 08:29:10,794 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:29:11,051 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 08:29:11,506 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:29:11,777 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:29:12,251 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:29:12,524 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-10 08:29:12,821 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:29:13,111 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 08:29:13,345 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-10 08:29:13,612 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 08:29:13,806 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-10 08:29:14,001 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 08:29:14,241 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-10 08:29:14,609 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2019-09-10 08:29:14,837 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2019-09-10 08:29:15,068 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 08:29:15,434 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-10 08:29:16,056 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2019-09-10 08:29:16,406 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2019-09-10 08:29:16,895 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 08:29:17,476 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:29:17,785 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 08:29:18,018 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 08:29:18,509 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:29:18,906 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-09-10 08:29:19,391 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 08:29:19,901 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:29:20,143 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-09-10 08:29:20,403 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:29:20,929 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-09-10 08:29:21,235 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2019-09-10 08:29:21,641 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 08:29:22,040 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-09-10 08:29:22,410 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2019-09-10 08:29:22,828 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 08:29:23,160 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-10 08:29:23,549 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-10 08:29:24,009 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 08:29:24,447 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-10 08:29:25,009 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2019-09-10 08:29:25,426 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2019-09-10 08:29:26,064 WARN L188 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 08:29:26,399 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:29:26,813 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2019-09-10 08:29:27,228 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2019-09-10 08:29:27,696 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 08:29:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:29:41,390 INFO L93 Difference]: Finished difference Result 1667445 states and 2271052 transitions. [2019-09-10 08:29:41,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 451 states. [2019-09-10 08:29:41,391 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 177 [2019-09-10 08:29:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:29:44,182 INFO L225 Difference]: With dead ends: 1667445 [2019-09-10 08:29:44,182 INFO L226 Difference]: Without dead ends: 1667445 [2019-09-10 08:29:44,198 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 275 SyntacticMatches, 63 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100659 ImplicationChecksByTransitivity, 136.9s TimeCoverageRelationStatistics Valid=23781, Invalid=204225, Unknown=0, NotChecked=0, Total=228006 [2019-09-10 08:29:46,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667445 states. [2019-09-10 08:30:03,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667445 to 430255. [2019-09-10 08:30:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430255 states. [2019-09-10 08:30:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430255 states to 430255 states and 594251 transitions. [2019-09-10 08:30:15,217 INFO L78 Accepts]: Start accepts. Automaton has 430255 states and 594251 transitions. Word has length 177 [2019-09-10 08:30:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:30:15,217 INFO L475 AbstractCegarLoop]: Abstraction has 430255 states and 594251 transitions. [2019-09-10 08:30:15,218 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 08:30:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 430255 states and 594251 transitions. [2019-09-10 08:30:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-10 08:30:15,253 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:30:15,254 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:15,254 INFO L418 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:30:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:30:15,254 INFO L82 PathProgramCache]: Analyzing trace with hash -742133607, now seen corresponding path program 1 times [2019-09-10 08:30:15,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:30:15,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:30:15,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:30:15,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:30:15,256 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:30:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:30:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:30:15,733 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:30:15,733 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 08:30:15,734 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2019-09-10 08:30:15,734 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], [102], [105], [108], [111], [114], [117], [120], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [163], [166], [169], [171], [175], [178], [181], [183], [187], [190], [193], [195], [198], [202], [205], [208], [212], [215], [219], [222], [225], [227], [230], [233], [236], [238], [241], [244], [247], [249], [252], [255], [258], [260], [263], [266], [269], [271], [274], [277], [280], [282], [284], [287], [294], [296], [299], [300], [302], [320], [323], [326], [331], [333], [336], [344], [346], [349], [352], [357], [359], [362], [370], [372], [375], [383], [393], [395], [398], [401], [403], [418], [420], [423], [426], [428], [436], [439], [445], [448], [451], [453], [468], [470], [473], [476], [478], [486], [489], [495], [498], [501], [503], [522], [525], [528], [530], [545], [548], [552], [677], [678], [682], [683], [684] [2019-09-10 08:30:15,740 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 08:30:15,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 08:30:15,786 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 08:30:16,513 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 08:30:16,514 INFO L272 AbstractInterpreter]: Visited 159 different actions 846 times. Merged at 58 different actions 604 times. Widened at 18 different actions 98 times. Performed 3021 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3021 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 68 fixpoints after 16 different actions. Largest state had 176 variables. [2019-09-10 08:30:16,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:30:16,515 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 08:30:16,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:30:16,515 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 08:30:16,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:30:16,531 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 08:30:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:30:16,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-10 08:30:16,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 08:30:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:30:16,742 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 08:30:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:30:16,790 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 08:30:16,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 14 [2019-09-10 08:30:16,790 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:30:16,791 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:30:16,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:30:16,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:30:16,791 INFO L87 Difference]: Start difference. First operand 430255 states and 594251 transitions. Second operand 3 states. [2019-09-10 08:30:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:30:22,528 INFO L93 Difference]: Finished difference Result 305963 states and 417838 transitions. [2019-09-10 08:30:22,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:30:22,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-09-10 08:30:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:30:22,901 INFO L225 Difference]: With dead ends: 305963 [2019-09-10 08:30:22,901 INFO L226 Difference]: Without dead ends: 305963 [2019-09-10 08:30:22,903 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:30:23,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305963 states. [2019-09-10 08:30:25,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305963 to 300786. [2019-09-10 08:30:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300786 states. [2019-09-10 08:30:26,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300786 states to 300786 states and 411237 transitions. [2019-09-10 08:30:26,244 INFO L78 Accepts]: Start accepts. Automaton has 300786 states and 411237 transitions. Word has length 177 [2019-09-10 08:30:26,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:30:26,244 INFO L475 AbstractCegarLoop]: Abstraction has 300786 states and 411237 transitions. [2019-09-10 08:30:26,244 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:30:26,244 INFO L276 IsEmpty]: Start isEmpty. Operand 300786 states and 411237 transitions. [2019-09-10 08:30:27,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-09-10 08:30:27,135 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:30:27,135 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 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 08:30:27,135 INFO L418 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:30:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:30:27,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1258846731, now seen corresponding path program 1 times [2019-09-10 08:30:27,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:30:27,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:30:27,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:30:27,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:30:27,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:30:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:30:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:30:27,458 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:30:27,458 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 08:30:27,458 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2019-09-10 08:30:27,458 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], [102], [105], [108], [111], [114], [117], [120], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [163], [166], [169], [171], [175], [178], [181], [183], [187], [190], [193], [195], [198], [202], [205], [208], [212], [215], [219], [222], [225], [227], [230], [233], [236], [238], [241], [244], [247], [249], [252], [255], [258], [260], [263], [266], [269], [271], [274], [277], [280], [282], [284], [287], [294], [296], [299], [300], [302], [305], [310], [318], [320], [323], [326], [331], [333], [336], [344], [346], [349], [352], [357], [359], [362], [370], [372], [375], [383], [393], [395], [398], [401], [403], [418], [420], [423], [426], [428], [436], [439], [445], [448], [451], [453], [468], [470], [473], [476], [478], [486], [489], [495], [498], [501], [503], [518], [520], [522], [525], [528], [530], [545], [548], [552], [677], [678], [682], [683], [684] [2019-09-10 08:30:27,463 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 08:30:27,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 08:30:27,490 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 08:30:28,451 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 08:30:28,452 INFO L272 AbstractInterpreter]: Visited 164 different actions 1088 times. Merged at 63 different actions 808 times. Widened at 23 different actions 146 times. Performed 3730 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3730 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 99 fixpoints after 21 different actions. Largest state had 176 variables. [2019-09-10 08:30:28,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:30:28,452 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 08:30:28,452 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:30:28,453 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 08:30:28,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:30:28,478 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 08:30:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:30:28,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 08:30:28,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 08:30:29,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:30:29,443 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 08:30:29,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:29,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:31,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:30:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:30:32,504 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 08:30:32,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2019-09-10 08:30:32,505 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 08:30:32,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 08:30:32,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 08:30:32,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2019-09-10 08:30:32,506 INFO L87 Difference]: Start difference. First operand 300786 states and 411237 transitions. Second operand 21 states. [2019-09-10 08:30:32,795 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 08:30:33,385 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 08:30:36,304 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-10 08:30:36,542 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 08:30:36,922 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 08:30:37,199 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 08:30:37,619 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:30:37,923 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 08:30:38,758 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:30:39,138 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:30:39,489 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:30:39,897 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:30:40,162 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:30:40,430 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:30:40,912 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:30:41,169 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 08:30:41,887 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:30:42,442 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:30:42,892 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:30:43,321 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:30:43,744 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:30:44,849 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:30:45,196 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 08:30:45,613 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:30:45,957 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:30:46,264 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:30:46,598 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 08:30:47,282 WARN L188 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:30:47,686 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:30:48,013 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 08:30:49,231 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:30:49,557 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:30:49,845 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:30:50,505 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:30:50,962 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 08:30:51,397 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:30:51,738 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:30:52,244 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:30:52,655 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 08:30:53,122 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:30:53,850 WARN L188 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:30:54,246 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:30:54,582 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:30:54,918 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:30:55,272 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:30:58,617 WARN L188 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:30:59,064 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:30:59,516 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:30:59,908 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:31:00,319 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:31:00,632 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:31:01,209 WARN L188 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:31:01,503 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:31:02,112 WARN L188 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:31:02,655 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:31:03,106 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:31:03,513 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:31:03,812 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:31:04,405 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:31:04,722 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:31:05,193 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 08:31:05,972 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:06,395 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:06,783 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:31:07,397 WARN L188 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:07,757 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:08,267 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:08,822 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:09,317 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:31:09,686 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:10,313 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:31:10,769 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:31:11,140 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:31:11,596 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:12,025 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:12,447 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:12,957 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:13,282 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:31:13,661 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:14,138 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:14,560 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:14,995 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:15,409 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:15,786 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:16,227 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:16,656 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:16,984 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:31:17,362 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:31:17,916 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:31:18,424 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:31:18,997 WARN L188 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:31:19,458 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:31:19,857 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:31:20,219 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:31:20,681 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:31:21,064 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 08:31:21,500 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:31:21,909 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:31:22,436 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 08:31:23,025 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:31:23,692 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 08:31:24,126 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:31:24,603 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 08:31:25,113 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:31:25,596 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:31:26,702 WARN L188 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:31:27,265 WARN L188 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:31:27,887 WARN L188 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:31:28,244 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:31:28,730 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:31:29,068 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:31:29,500 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:31:29,864 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:31:30,285 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 08:31:30,907 WARN L188 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:31:31,299 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:31,721 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:31:32,284 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:31:32,721 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:31:33,256 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:31:33,646 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:31:34,012 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 08:31:34,380 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:31:34,949 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:31:35,656 WARN L188 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:36,086 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:31:36,543 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:31:36,933 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:37,410 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 08:31:37,824 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 08:31:38,349 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 08:31:38,843 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:31:39,392 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:31:39,847 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:31:42,195 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:31:42,555 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:31:42,922 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:31:43,620 WARN L188 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:44,032 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 08:31:44,395 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:31:44,768 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:31:45,463 WARN L188 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:45,863 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:31:46,294 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:31:46,819 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:31:47,370 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:31:47,811 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:31:48,638 WARN L188 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:31:49,060 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:31:49,486 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:31:49,929 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:31:50,566 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:31:50,956 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 08:31:51,590 WARN L188 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:31:51,890 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 08:31:52,375 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:31:52,759 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:31:58,404 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:31:58,963 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:32:00,225 WARN L188 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 08:32:00,562 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:32:00,976 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 08:32:01,430 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:32:02,008 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:32:02,370 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:32:02,805 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:32:03,139 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:32:03,815 WARN L188 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:32:04,241 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:32:04,764 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:32:05,182 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 08:32:05,540 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:32:05,965 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:32:06,358 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 08:32:06,741 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:32:07,061 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:32:07,588 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:32:08,006 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:32:08,379 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:32:08,907 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:32:14,689 WARN L188 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:32:15,031 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 08:32:15,566 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:32:16,215 WARN L188 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 08:32:16,641 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:32:16,966 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:32:17,311 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 08:32:17,745 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:32:18,228 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:32:18,918 WARN L188 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 08:32:19,276 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:32:19,698 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:32:20,183 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:32:20,898 WARN L188 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:32:21,266 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:32:21,810 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:32:22,263 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:32:22,776 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 08:32:23,722 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:32:24,184 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:32:24,626 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2019-09-10 08:32:25,208 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 08:32:25,813 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2019-09-10 08:32:26,303 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 08:32:26,913 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:32:27,516 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:32:30,094 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:32:30,518 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:32:31,729 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:32:32,219 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:32:32,525 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:32:33,191 WARN L188 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:32:33,551 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:32:34,011 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:32:34,483 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:32:35,048 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:32:35,447 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:32:35,855 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:32:36,328 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:32:36,747 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:32:37,166 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:32:37,756 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:32:38,102 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78