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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:18:20,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:18:20,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:18:20,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:18:20,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:18:20,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:18:20,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:18:20,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:18:20,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:18:20,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:18:20,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:18:20,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:18:20,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:18:20,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:18:20,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:18:20,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:18:20,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:18:20,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:18:20,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:18:20,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:18:20,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:18:20,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:18:20,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:18:20,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:18:20,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:18:20,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:18:20,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:18:20,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:18:20,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:18:20,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:18:20,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:18:20,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:18:20,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:18:20,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:18:20,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:18:20,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:18:20,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:18:20,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:18:20,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:18:20,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:18:20,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:18:20,333 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 23:18:20,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:18:20,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:18:20,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:18:20,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:18:20,351 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:18:20,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:18:20,351 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:18:20,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:18:20,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:18:20,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:18:20,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:18:20,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:18:20,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:18:20,352 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:18:20,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:18:20,353 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:18:20,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:18:20,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:18:20,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:18:20,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:18:20,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:18:20,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:20,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:18:20,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:18:20,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:18:20,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:18:20,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:18:20,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:18:20,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:18:20,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:18:20,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:18:20,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:18:20,674 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:18:20,674 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:18:20,675 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2019-10-13 23:18:20,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98345be94/03238d6266fe499c998f531f906a6c03/FLAG9d5766bad [2019-10-13 23:18:21,281 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:18:21,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2019-10-13 23:18:21,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98345be94/03238d6266fe499c998f531f906a6c03/FLAG9d5766bad [2019-10-13 23:18:21,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98345be94/03238d6266fe499c998f531f906a6c03 [2019-10-13 23:18:21,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:18:21,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:18:21,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:21,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:18:21,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:18:21,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:21" (1/1) ... [2019-10-13 23:18:21,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a295c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:21, skipping insertion in model container [2019-10-13 23:18:21,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:21" (1/1) ... [2019-10-13 23:18:21,620 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:18:21,659 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:18:22,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:22,106 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:18:22,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:22,269 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:18:22,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22 WrapperNode [2019-10-13 23:18:22,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:22,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:18:22,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:18:22,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:18:22,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (1/1) ... [2019-10-13 23:18:22,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (1/1) ... [2019-10-13 23:18:22,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (1/1) ... [2019-10-13 23:18:22,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (1/1) ... [2019-10-13 23:18:22,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (1/1) ... [2019-10-13 23:18:22,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (1/1) ... [2019-10-13 23:18:22,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (1/1) ... [2019-10-13 23:18:22,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:18:22,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:18:22,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:18:22,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:18:22,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (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 23:18:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:18:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:18:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:22,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:18:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:18:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:18:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:18:22,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:18:22,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:22,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:22,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:22,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:18:22,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:18:22,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:18:22,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:18:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:18:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:18:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:18:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:18:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:18:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:18:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:18:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:18:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:18:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:18:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:18:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:18:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:18:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:18:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:18:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:18:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:18:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:18:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:18:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:18:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:18:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:18:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:18:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:18:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:18:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:18:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:18:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:18:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:18:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:18:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:18:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:18:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:18:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:18:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:18:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:18:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:18:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:18:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:18:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:18:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:18:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:18:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:18:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:18:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:18:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:18:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:18:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:18:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:18:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:18:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:18:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:18:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:18:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:18:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:18:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:18:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:18:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:18:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:18:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:18:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:18:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:18:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:18:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:18:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:18:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:18:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:18:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:18:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:18:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:18:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:18:24,120 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:18:24,121 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:18:24,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:24 BoogieIcfgContainer [2019-10-13 23:18:24,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:18:24,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:18:24,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:18:24,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:18:24,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:18:21" (1/3) ... [2019-10-13 23:18:24,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f669dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:24, skipping insertion in model container [2019-10-13 23:18:24,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:22" (2/3) ... [2019-10-13 23:18:24,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f669dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:24, skipping insertion in model container [2019-10-13 23:18:24,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:24" (3/3) ... [2019-10-13 23:18:24,132 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2019-10-13 23:18:24,142 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:18:24,151 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:18:24,163 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:18:24,188 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:18:24,189 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:18:24,189 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:18:24,189 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:18:24,189 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:18:24,189 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:18:24,189 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:18:24,190 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:18:24,212 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2019-10-13 23:18:24,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:18:24,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:24,223 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:24,225 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:24,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:24,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1250401890, now seen corresponding path program 1 times [2019-10-13 23:18:24,242 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:24,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695512999] [2019-10-13 23:18:24,242 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:24,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:24,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:24,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695512999] [2019-10-13 23:18:24,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:24,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:18:24,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247140182] [2019-10-13 23:18:24,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:18:24,609 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:24,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:18:24,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:24,622 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 2 states. [2019-10-13 23:18:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:24,675 INFO L93 Difference]: Finished difference Result 246 states and 297 transitions. [2019-10-13 23:18:24,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:18:24,676 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:18:24,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:24,695 INFO L225 Difference]: With dead ends: 246 [2019-10-13 23:18:24,695 INFO L226 Difference]: Without dead ends: 125 [2019-10-13 23:18:24,700 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-13 23:18:24,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-13 23:18:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-13 23:18:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2019-10-13 23:18:24,759 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 52 [2019-10-13 23:18:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:24,760 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2019-10-13 23:18:24,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:18:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2019-10-13 23:18:24,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:18:24,764 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:24,764 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:24,765 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:24,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:24,765 INFO L82 PathProgramCache]: Analyzing trace with hash 186454401, now seen corresponding path program 1 times [2019-10-13 23:18:24,766 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:24,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603717070] [2019-10-13 23:18:24,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:24,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:24,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:24,974 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603717070] [2019-10-13 23:18:24,974 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:24,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:18:24,975 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921621119] [2019-10-13 23:18:24,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:18:24,978 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:24,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:18:24,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:24,979 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand 3 states. [2019-10-13 23:18:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:25,024 INFO L93 Difference]: Finished difference Result 200 states and 231 transitions. [2019-10-13 23:18:25,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:18:25,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:18:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:25,029 INFO L225 Difference]: With dead ends: 200 [2019-10-13 23:18:25,029 INFO L226 Difference]: Without dead ends: 117 [2019-10-13 23:18:25,032 INFO L600 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 [2019-10-13 23:18:25,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-10-13 23:18:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-10-13 23:18:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-10-13 23:18:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2019-10-13 23:18:25,052 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 53 [2019-10-13 23:18:25,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:25,052 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2019-10-13 23:18:25,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:18:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2019-10-13 23:18:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 23:18:25,055 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:25,056 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:25,056 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:25,056 INFO L82 PathProgramCache]: Analyzing trace with hash -731827665, now seen corresponding path program 1 times [2019-10-13 23:18:25,057 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:25,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134467959] [2019-10-13 23:18:25,057 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:25,057 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:25,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:25,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134467959] [2019-10-13 23:18:25,221 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:25,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:25,221 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279327746] [2019-10-13 23:18:25,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:25,222 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:25,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:25,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:25,223 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand 7 states. [2019-10-13 23:18:25,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:25,633 INFO L93 Difference]: Finished difference Result 209 states and 242 transitions. [2019-10-13 23:18:25,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:18:25,633 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 23:18:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:25,636 INFO L225 Difference]: With dead ends: 209 [2019-10-13 23:18:25,636 INFO L226 Difference]: Without dead ends: 117 [2019-10-13 23:18:25,640 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:18:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-10-13 23:18:25,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-10-13 23:18:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-10-13 23:18:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 132 transitions. [2019-10-13 23:18:25,664 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 132 transitions. Word has length 56 [2019-10-13 23:18:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:25,668 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 132 transitions. [2019-10-13 23:18:25,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 132 transitions. [2019-10-13 23:18:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-13 23:18:25,671 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:25,671 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:25,671 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:25,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:25,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1459374133, now seen corresponding path program 1 times [2019-10-13 23:18:25,672 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:25,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529814205] [2019-10-13 23:18:25,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:25,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:25,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:25,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529814205] [2019-10-13 23:18:25,772 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:25,772 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:18:25,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978231063] [2019-10-13 23:18:25,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:18:25,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:25,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:18:25,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:18:25,774 INFO L87 Difference]: Start difference. First operand 117 states and 132 transitions. Second operand 5 states. [2019-10-13 23:18:26,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:26,326 INFO L93 Difference]: Finished difference Result 311 states and 367 transitions. [2019-10-13 23:18:26,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:18:26,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-13 23:18:26,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:26,329 INFO L225 Difference]: With dead ends: 311 [2019-10-13 23:18:26,330 INFO L226 Difference]: Without dead ends: 219 [2019-10-13 23:18:26,331 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:18:26,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-13 23:18:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2019-10-13 23:18:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-13 23:18:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 225 transitions. [2019-10-13 23:18:26,356 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 225 transitions. Word has length 69 [2019-10-13 23:18:26,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:26,356 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 225 transitions. [2019-10-13 23:18:26,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:18:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 225 transitions. [2019-10-13 23:18:26,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 23:18:26,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:26,358 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:26,359 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:26,359 INFO L82 PathProgramCache]: Analyzing trace with hash -20244775, now seen corresponding path program 1 times [2019-10-13 23:18:26,359 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:26,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166491365] [2019-10-13 23:18:26,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:26,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:26,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:18:26,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166491365] [2019-10-13 23:18:26,476 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:26,476 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:26,476 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939248972] [2019-10-13 23:18:26,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:26,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:26,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:26,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:26,478 INFO L87 Difference]: Start difference. First operand 202 states and 225 transitions. Second operand 7 states. [2019-10-13 23:18:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:27,083 INFO L93 Difference]: Finished difference Result 395 states and 455 transitions. [2019-10-13 23:18:27,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:18:27,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-13 23:18:27,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:27,087 INFO L225 Difference]: With dead ends: 395 [2019-10-13 23:18:27,087 INFO L226 Difference]: Without dead ends: 218 [2019-10-13 23:18:27,088 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:18:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-10-13 23:18:27,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2019-10-13 23:18:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-10-13 23:18:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 222 transitions. [2019-10-13 23:18:27,108 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 222 transitions. Word has length 78 [2019-10-13 23:18:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:27,108 INFO L462 AbstractCegarLoop]: Abstraction has 201 states and 222 transitions. [2019-10-13 23:18:27,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 222 transitions. [2019-10-13 23:18:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-13 23:18:27,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:27,110 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:27,111 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:27,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:27,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1226535836, now seen corresponding path program 1 times [2019-10-13 23:18:27,111 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:27,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422274750] [2019-10-13 23:18:27,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:27,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:27,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:27,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422274750] [2019-10-13 23:18:27,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:27,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:18:27,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577945940] [2019-10-13 23:18:27,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:18:27,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:27,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:18:27,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:18:27,369 INFO L87 Difference]: Start difference. First operand 201 states and 222 transitions. Second operand 12 states. [2019-10-13 23:18:28,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:28,523 INFO L93 Difference]: Finished difference Result 526 states and 603 transitions. [2019-10-13 23:18:28,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:18:28,525 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2019-10-13 23:18:28,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:28,529 INFO L225 Difference]: With dead ends: 526 [2019-10-13 23:18:28,530 INFO L226 Difference]: Without dead ends: 350 [2019-10-13 23:18:28,531 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:18:28,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-13 23:18:28,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 341. [2019-10-13 23:18:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-13 23:18:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 388 transitions. [2019-10-13 23:18:28,560 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 388 transitions. Word has length 91 [2019-10-13 23:18:28,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:28,560 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 388 transitions. [2019-10-13 23:18:28,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:18:28,561 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 388 transitions. [2019-10-13 23:18:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 23:18:28,562 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:28,563 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:18:28,563 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:28,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1624802779, now seen corresponding path program 1 times [2019-10-13 23:18:28,564 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:28,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956960821] [2019-10-13 23:18:28,564 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:28,564 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:28,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:28,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956960821] [2019-10-13 23:18:28,758 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:28,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:18:28,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649784766] [2019-10-13 23:18:28,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:18:28,761 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:28,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:18:28,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:18:28,762 INFO L87 Difference]: Start difference. First operand 341 states and 388 transitions. Second operand 9 states. [2019-10-13 23:18:29,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:29,732 INFO L93 Difference]: Finished difference Result 1059 states and 1240 transitions. [2019-10-13 23:18:29,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:18:29,733 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2019-10-13 23:18:29,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:29,738 INFO L225 Difference]: With dead ends: 1059 [2019-10-13 23:18:29,739 INFO L226 Difference]: Without dead ends: 804 [2019-10-13 23:18:29,740 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:18:29,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-13 23:18:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 699. [2019-10-13 23:18:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2019-10-13 23:18:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 802 transitions. [2019-10-13 23:18:29,791 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 802 transitions. Word has length 94 [2019-10-13 23:18:29,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:29,791 INFO L462 AbstractCegarLoop]: Abstraction has 699 states and 802 transitions. [2019-10-13 23:18:29,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:18:29,792 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 802 transitions. [2019-10-13 23:18:29,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:18:29,794 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:29,794 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:29,795 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:29,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:29,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1585837824, now seen corresponding path program 1 times [2019-10-13 23:18:29,795 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:29,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812439406] [2019-10-13 23:18:29,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:29,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:29,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:18:29,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812439406] [2019-10-13 23:18:29,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645267352] [2019-10-13 23:18:29,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:18:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:30,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:18:30,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:18:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:18:30,388 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:18:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:18:30,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [662567267] [2019-10-13 23:18:30,862 INFO L162 IcfgInterpreter]: Started Sifa with 107 locations of interest [2019-10-13 23:18:30,862 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:18:30,870 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:18:30,876 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:18:30,877 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:18:40,275 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:18:41,870 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:18:42,004 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:42,142 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:42,276 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:42,579 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:42,784 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:42,982 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:43,247 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:43,647 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:18:43,835 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:44,019 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:44,140 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:44,250 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:44,364 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:44,373 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:18:44,629 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:18:44,749 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:44,853 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:44,993 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,138 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:45,380 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,505 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:45,756 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,975 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:18:46,088 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:46,251 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,403 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:46,637 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,834 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:46,951 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,084 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:47,191 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:47,316 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,625 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,739 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:47,869 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:47,988 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,187 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:48,309 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,516 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:48,637 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,951 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:49,148 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:49,275 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:49,441 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:49,551 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:49,671 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:49,877 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:49,987 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,116 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,238 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,348 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,468 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,638 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:50,751 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:50,882 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:51,080 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:51,209 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:51,495 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:51,773 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:51,883 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:52,007 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,120 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:52,230 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:52,352 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,469 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,581 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,764 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:52,901 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:53,011 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:53,155 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:53,392 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:18:53,509 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:53,655 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:53,766 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:53,877 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:53,999 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:54,231 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:54,342 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:54,472 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:54,673 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:54,782 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:54,902 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:55,016 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:55,135 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:55,262 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:55,477 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:55,591 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:55,730 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:55,968 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:56,079 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:56,205 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:56,318 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:56,433 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:56,556 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:56,766 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-13 23:18:56,880 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:57,006 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:57,199 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-13 23:18:57,311 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:57,444 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:57,663 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:57,774 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:57,898 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:58,113 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:58,223 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:58,350 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:58,471 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:58,581 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:58,699 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:58,907 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:59,019 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:59,143 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:59,340 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:59,464 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:59,590 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:59,700 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:59,810 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:59,972 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:00,191 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:19:00,303 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:00,439 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:00,641 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:19:00,753 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:00,879 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:19:01,096 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:01,205 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:01,325 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:01,529 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:01,638 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:01,759 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:02,084 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:02,192 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:02,311 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564