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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:42:45,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:42:45,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:42:45,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:42:45,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:42:45,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:42:45,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:42:45,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:42:45,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:42:45,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:42:45,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:42:45,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:42:45,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:42:45,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:42:45,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:42:45,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:42:45,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:42:45,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:42:45,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:42:45,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:42:45,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:42:45,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:42:45,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:42:45,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:42:45,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:42:45,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:42:45,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:42:45,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:42:45,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:42:45,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:42:45,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:42:45,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:42:45,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:42:45,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:42:45,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:42:45,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:42:45,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:42:45,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:42:45,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:42:45,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:42:45,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:42:45,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:42:45,322 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:42:45,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:42:45,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:42:45,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:42:45,324 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:42:45,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:42:45,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:42:45,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:42:45,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:42:45,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:42:45,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:42:45,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:42:45,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:42:45,329 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:42:45,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:42:45,329 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:42:45,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:42:45,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:42:45,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:42:45,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:42:45,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:42:45,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:45,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:42:45,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:42:45,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:42:45,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:42:45,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:42:45,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:42:45,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:42:45,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:42:45,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:42:45,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:42:45,637 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:42:45,637 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:42:45,638 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-10-13 19:42:45,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee450054/735095b98ef74a80ade01f04b2534f0a/FLAG06b1514b6 [2019-10-13 19:42:46,236 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:42:46,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-10-13 19:42:46,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee450054/735095b98ef74a80ade01f04b2534f0a/FLAG06b1514b6 [2019-10-13 19:42:46,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee450054/735095b98ef74a80ade01f04b2534f0a [2019-10-13 19:42:46,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:42:46,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:42:46,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:46,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:42:46,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:42:46,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:46" (1/1) ... [2019-10-13 19:42:46,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4626f4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:46, skipping insertion in model container [2019-10-13 19:42:46,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:46" (1/1) ... [2019-10-13 19:42:46,573 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:42:46,638 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:42:47,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:47,113 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:42:47,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:47,248 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:42:47,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47 WrapperNode [2019-10-13 19:42:47,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:47,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:42:47,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:42:47,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:42:47,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (1/1) ... [2019-10-13 19:42:47,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (1/1) ... [2019-10-13 19:42:47,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (1/1) ... [2019-10-13 19:42:47,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (1/1) ... [2019-10-13 19:42:47,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (1/1) ... [2019-10-13 19:42:47,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (1/1) ... [2019-10-13 19:42:47,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (1/1) ... [2019-10-13 19:42:47,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:42:47,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:42:47,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:42:47,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:42:47,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (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 [2019-10-13 19:42:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:42:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:42:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:42:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:42:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:42:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:42:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:42:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:42:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:42:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:42:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:42:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:42:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:42:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:42:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:42:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:42:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 19:42:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:42:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:42:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:42:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:42:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:42:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:42:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:42:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:42:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:42:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:42:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:42:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:42:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:42:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:42:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:42:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:42:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:42:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:42:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:42:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:42:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:42:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:42:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:42:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:42:47,436 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:42:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:42:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:42:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:42:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:47,437 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:42:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:42:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:42:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 19:42:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:42:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:42:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:42:47,438 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:42:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:42:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:42:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:42:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:42:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:42:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:42:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:42:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:42:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:42:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:42:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:42:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:42:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:42:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:42:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:42:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:42:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:42:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:42:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:42:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:42:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:42:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:42:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:42:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:42:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:42:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:42:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:42:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:42:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:42:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:42:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:42:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:42:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:42:48,631 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:42:48,632 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:42:48,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:48 BoogieIcfgContainer [2019-10-13 19:42:48,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:42:48,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:42:48,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:42:48,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:42:48,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:42:46" (1/3) ... [2019-10-13 19:42:48,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d29fb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:48, skipping insertion in model container [2019-10-13 19:42:48,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:47" (2/3) ... [2019-10-13 19:42:48,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d29fb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:48, skipping insertion in model container [2019-10-13 19:42:48,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:48" (3/3) ... [2019-10-13 19:42:48,645 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2019-10-13 19:42:48,657 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:42:48,670 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:42:48,686 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:42:48,716 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:42:48,716 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:42:48,718 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:42:48,718 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:42:48,719 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:42:48,719 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:42:48,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:42:48,719 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:42:48,752 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2019-10-13 19:42:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 19:42:48,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:48,771 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:42:48,774 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:48,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:48,782 INFO L82 PathProgramCache]: Analyzing trace with hash -304783320, now seen corresponding path program 1 times [2019-10-13 19:42:48,792 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:48,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575631852] [2019-10-13 19:42:48,793 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:48,797 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:48,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,535 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:49,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575631852] [2019-10-13 19:42:49,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:49,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:42:49,685 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771614979] [2019-10-13 19:42:49,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:42:49,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:49,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:42:49,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:49,710 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2019-10-13 19:42:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:51,224 INFO L93 Difference]: Finished difference Result 382 states and 489 transitions. [2019-10-13 19:42:51,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:42:51,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 19:42:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:51,241 INFO L225 Difference]: With dead ends: 382 [2019-10-13 19:42:51,241 INFO L226 Difference]: Without dead ends: 210 [2019-10-13 19:42:51,249 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:51,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2019-10-13 19:42:51,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 173. [2019-10-13 19:42:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-10-13 19:42:51,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2019-10-13 19:42:51,367 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2019-10-13 19:42:51,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:51,368 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2019-10-13 19:42:51,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:42:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2019-10-13 19:42:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 19:42:51,373 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:51,373 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:42:51,373 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:51,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:51,374 INFO L82 PathProgramCache]: Analyzing trace with hash -511503066, now seen corresponding path program 1 times [2019-10-13 19:42:51,374 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:51,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859642395] [2019-10-13 19:42:51,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:51,375 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:51,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,764 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:51,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859642395] [2019-10-13 19:42:51,849 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:51,849 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:42:51,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885094691] [2019-10-13 19:42:51,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:42:51,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:51,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:42:51,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:42:51,861 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand 5 states. [2019-10-13 19:42:52,459 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:53,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:53,652 INFO L93 Difference]: Finished difference Result 317 states and 389 transitions. [2019-10-13 19:42:53,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:42:53,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 19:42:53,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:53,657 INFO L225 Difference]: With dead ends: 317 [2019-10-13 19:42:53,657 INFO L226 Difference]: Without dead ends: 200 [2019-10-13 19:42:53,659 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:42:53,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2019-10-13 19:42:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2019-10-13 19:42:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-10-13 19:42:53,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2019-10-13 19:42:53,701 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2019-10-13 19:42:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:53,701 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2019-10-13 19:42:53,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:42:53,701 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2019-10-13 19:42:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:42:53,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:53,704 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:42:53,704 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:53,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:53,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1192401668, now seen corresponding path program 1 times [2019-10-13 19:42:53,705 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:53,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520698994] [2019-10-13 19:42:53,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:53,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:53,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,051 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:54,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520698994] [2019-10-13 19:42:54,140 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:54,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:54,141 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261305904] [2019-10-13 19:42:54,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:54,142 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:54,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:54,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:54,143 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand 9 states. [2019-10-13 19:42:54,677 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:55,015 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:55,299 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:55,594 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:56,546 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:59,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:59,081 INFO L93 Difference]: Finished difference Result 549 states and 680 transitions. [2019-10-13 19:42:59,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:42:59,087 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-13 19:42:59,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:59,093 INFO L225 Difference]: With dead ends: 549 [2019-10-13 19:42:59,093 INFO L226 Difference]: Without dead ends: 413 [2019-10-13 19:42:59,094 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:42:59,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-13 19:42:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 344. [2019-10-13 19:42:59,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2019-10-13 19:42:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2019-10-13 19:42:59,174 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2019-10-13 19:42:59,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:59,174 INFO L462 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2019-10-13 19:42:59,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:59,175 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2019-10-13 19:42:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:42:59,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:59,178 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:42:59,178 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:59,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:59,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1231670033, now seen corresponding path program 1 times [2019-10-13 19:42:59,179 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:59,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376674506] [2019-10-13 19:42:59,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:59,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:59,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,571 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:42:59,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376674506] [2019-10-13 19:42:59,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:59,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:59,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276299390] [2019-10-13 19:42:59,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:59,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:59,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:59,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:59,668 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 9 states. [2019-10-13 19:43:00,254 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:01,017 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:02,161 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:02,422 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:02,807 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:03,114 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:04,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:04,217 INFO L93 Difference]: Finished difference Result 891 states and 1152 transitions. [2019-10-13 19:43:04,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:43:04,217 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-13 19:43:04,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:04,223 INFO L225 Difference]: With dead ends: 891 [2019-10-13 19:43:04,223 INFO L226 Difference]: Without dead ends: 575 [2019-10-13 19:43:04,226 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:43:04,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-10-13 19:43:04,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 507. [2019-10-13 19:43:04,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2019-10-13 19:43:04,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2019-10-13 19:43:04,340 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 70 [2019-10-13 19:43:04,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:04,341 INFO L462 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2019-10-13 19:43:04,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:43:04,341 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2019-10-13 19:43:04,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:43:04,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:04,345 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:43:04,346 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:04,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:04,346 INFO L82 PathProgramCache]: Analyzing trace with hash 853087743, now seen corresponding path program 1 times [2019-10-13 19:43:04,346 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:04,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566919324] [2019-10-13 19:43:04,347 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:04,347 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:04,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,664 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:04,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566919324] [2019-10-13 19:43:04,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:04,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:43:04,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372126998] [2019-10-13 19:43:04,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:43:04,820 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:04,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:43:04,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:43:04,821 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand 9 states. [2019-10-13 19:43:06,054 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:06,329 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:43:06,617 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:06,882 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:07,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:07,927 INFO L93 Difference]: Finished difference Result 1079 states and 1378 transitions. [2019-10-13 19:43:07,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:43:07,928 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2019-10-13 19:43:07,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:07,933 INFO L225 Difference]: With dead ends: 1079 [2019-10-13 19:43:07,933 INFO L226 Difference]: Without dead ends: 600 [2019-10-13 19:43:07,935 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:43:07,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-10-13 19:43:08,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2019-10-13 19:43:08,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2019-10-13 19:43:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2019-10-13 19:43:08,056 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2019-10-13 19:43:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:08,057 INFO L462 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2019-10-13 19:43:08,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:43:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2019-10-13 19:43:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:43:08,059 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:08,059 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:43:08,060 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:08,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:08,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1502717507, now seen corresponding path program 1 times [2019-10-13 19:43:08,060 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:08,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092482503] [2019-10-13 19:43:08,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:08,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:08,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,388 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:08,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092482503] [2019-10-13 19:43:08,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:08,551 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:43:08,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735143490] [2019-10-13 19:43:08,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:43:08,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:08,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:43:08,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:43:08,552 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 11 states. [2019-10-13 19:43:09,090 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:09,347 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:09,602 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:10,617 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:10,909 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:11,186 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:43:12,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:12,486 INFO L93 Difference]: Finished difference Result 1102 states and 1402 transitions. [2019-10-13 19:43:12,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:43:12,487 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2019-10-13 19:43:12,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:12,491 INFO L225 Difference]: With dead ends: 1102 [2019-10-13 19:43:12,491 INFO L226 Difference]: Without dead ends: 610 [2019-10-13 19:43:12,493 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:43:12,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2019-10-13 19:43:12,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 528. [2019-10-13 19:43:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-10-13 19:43:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2019-10-13 19:43:12,581 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2019-10-13 19:43:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:12,582 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2019-10-13 19:43:12,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:43:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2019-10-13 19:43:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:43:12,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:12,584 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:43:12,585 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:12,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:12,585 INFO L82 PathProgramCache]: Analyzing trace with hash -733547492, now seen corresponding path program 1 times [2019-10-13 19:43:12,585 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:12,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831884742] [2019-10-13 19:43:12,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:12,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:12,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,848 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:13,008 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831884742] [2019-10-13 19:43:13,008 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:13,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:43:13,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381049556] [2019-10-13 19:43:13,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:43:13,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:13,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:43:13,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:43:13,011 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand 7 states. [2019-10-13 19:43:13,383 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:13,953 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:16,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:16,502 INFO L93 Difference]: Finished difference Result 1603 states and 2056 transitions. [2019-10-13 19:43:16,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:43:16,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-13 19:43:16,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:16,511 INFO L225 Difference]: With dead ends: 1603 [2019-10-13 19:43:16,511 INFO L226 Difference]: Without dead ends: 1103 [2019-10-13 19:43:16,514 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:43:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2019-10-13 19:43:16,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1025. [2019-10-13 19:43:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2019-10-13 19:43:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1239 transitions. [2019-10-13 19:43:16,723 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1239 transitions. Word has length 113 [2019-10-13 19:43:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:16,724 INFO L462 AbstractCegarLoop]: Abstraction has 1025 states and 1239 transitions. [2019-10-13 19:43:16,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:43:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1239 transitions. [2019-10-13 19:43:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-13 19:43:16,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:16,733 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 19:43:16,733 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:16,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:16,734 INFO L82 PathProgramCache]: Analyzing trace with hash 216342370, now seen corresponding path program 1 times [2019-10-13 19:43:16,734 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:16,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32288077] [2019-10-13 19:43:16,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:16,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:16,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,144 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:43:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:43:17,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32288077] [2019-10-13 19:43:17,370 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:17,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:43:17,370 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849763761] [2019-10-13 19:43:17,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:43:17,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:17,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:43:17,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:43:17,372 INFO L87 Difference]: Start difference. First operand 1025 states and 1239 transitions. Second operand 12 states. [2019-10-13 19:43:18,144 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:18,953 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:19,722 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:20,073 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:20,346 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:43:20,673 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:20,985 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:43:23,529 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:43:23,904 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190