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_spec4_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:16:56,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:16:56,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:16:56,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:16:56,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:16:56,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:16:56,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:16:56,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:16:56,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:16:56,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:16:56,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:16:56,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:16:56,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:16:56,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:16:56,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:16:56,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:16:56,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:16:56,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:16:56,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:16:56,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:16:56,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:16:56,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:16:56,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:16:56,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:16:56,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:16:56,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:16:56,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:16:56,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:16:56,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:16:56,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:16:56,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:16:56,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:16:56,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:16:56,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:16:56,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:16:56,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:16:56,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:16:56,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:16:56,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:16:56,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:16:56,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:16:56,186 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 23:16:56,211 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:16:56,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:16:56,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:16:56,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:16:56,214 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:16:56,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:16:56,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:16:56,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:16:56,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:16:56,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:16:56,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:16:56,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:16:56,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:16:56,217 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:16:56,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:16:56,217 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:16:56,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:16:56,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:16:56,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:16:56,218 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:16:56,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:16:56,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:56,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:16:56,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:16:56,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:16:56,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:16:56,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:16:56,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:16:56,220 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 23:16:56,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:16:56,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:16:56,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:16:56,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:16:56,532 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:16:56,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-10-13 23:16:56,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483584424/25fc768d63804e2a80b625c90f0d120f/FLAG884c07556 [2019-10-13 23:16:57,168 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:16:57,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-10-13 23:16:57,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483584424/25fc768d63804e2a80b625c90f0d120f/FLAG884c07556 [2019-10-13 23:16:57,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483584424/25fc768d63804e2a80b625c90f0d120f [2019-10-13 23:16:57,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:16:57,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:16:57,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:57,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:16:57,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:16:57,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:57" (1/1) ... [2019-10-13 23:16:57,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac730e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:57, skipping insertion in model container [2019-10-13 23:16:57,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:57" (1/1) ... [2019-10-13 23:16:57,446 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:16:57,507 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:16:57,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:57,936 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:16:58,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:58,135 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:16:58,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58 WrapperNode [2019-10-13 23:16:58,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:58,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:16:58,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:16:58,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:16:58,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:16:58,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:16:58,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:16:58,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:16:58,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (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 23:16:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:16:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:16:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:16:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:16:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:16:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:16:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:16:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:16:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:16:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:16:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:16:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:16:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:16:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:16:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:16:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:16:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:16:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:16:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:16:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:16:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:16:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:16:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:16:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:16:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:16:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:16:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:16:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:16:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:16:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:16:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:16:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:16:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:16:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:16:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:16:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:16:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:16:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:16:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:16:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:16:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:16:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:16:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:16:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:16:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:16:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:16:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:16:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:16:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:16:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:16:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:16:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:16:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:16:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:16:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:16:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:16:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:16:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:16:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:16:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:16:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:16:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:16:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:16:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:16:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:16:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:16:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:16:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:16:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:16:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:16:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:16:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:16:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:16:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:16:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:16:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:16:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:16:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:16:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:16:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:16:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:16:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:16:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:16:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:16:59,922 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:16:59,925 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:16:59,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:59 BoogieIcfgContainer [2019-10-13 23:16:59,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:16:59,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:16:59,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:16:59,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:16:59,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:16:57" (1/3) ... [2019-10-13 23:16:59,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480b8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:59, skipping insertion in model container [2019-10-13 23:16:59,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58" (2/3) ... [2019-10-13 23:16:59,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480b8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:59, skipping insertion in model container [2019-10-13 23:16:59,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:59" (3/3) ... [2019-10-13 23:16:59,938 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2019-10-13 23:16:59,951 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:16:59,963 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:16:59,977 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:00,016 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:00,017 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:00,017 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:00,017 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:00,018 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:00,018 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:00,018 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:00,018 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:00,050 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-10-13 23:17:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:00,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:00,061 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:00,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:00,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:00,069 INFO L82 PathProgramCache]: Analyzing trace with hash 932161007, now seen corresponding path program 1 times [2019-10-13 23:17:00,079 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:00,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849515063] [2019-10-13 23:17:00,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:00,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849515063] [2019-10-13 23:17:00,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:00,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:00,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916228616] [2019-10-13 23:17:00,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:00,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:00,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:00,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:00,448 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2019-10-13 23:17:00,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:00,492 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2019-10-13 23:17:00,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:00,494 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:00,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:00,505 INFO L225 Difference]: With dead ends: 243 [2019-10-13 23:17:00,506 INFO L226 Difference]: Without dead ends: 122 [2019-10-13 23:17:00,510 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 23:17:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-13 23:17:00,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-13 23:17:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-13 23:17:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions. [2019-10-13 23:17:00,582 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 42 [2019-10-13 23:17:00,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:00,583 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions. [2019-10-13 23:17:00,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:00,584 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions. [2019-10-13 23:17:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:00,591 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:00,591 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:00,591 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:00,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1254270614, now seen corresponding path program 1 times [2019-10-13 23:17:00,593 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:00,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723532054] [2019-10-13 23:17:00,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:00,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:00,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723532054] [2019-10-13 23:17:00,753 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:00,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:00,754 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208580754] [2019-10-13 23:17:00,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:00,756 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:00,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:00,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:00,756 INFO L87 Difference]: Start difference. First operand 122 states and 140 transitions. Second operand 3 states. [2019-10-13 23:17:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:00,781 INFO L93 Difference]: Finished difference Result 201 states and 231 transitions. [2019-10-13 23:17:00,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:00,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:00,784 INFO L225 Difference]: With dead ends: 201 [2019-10-13 23:17:00,785 INFO L226 Difference]: Without dead ends: 114 [2019-10-13 23:17:00,786 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 23:17:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-13 23:17:00,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-13 23:17:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-13 23:17:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2019-10-13 23:17:00,811 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 43 [2019-10-13 23:17:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:00,814 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2019-10-13 23:17:00,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2019-10-13 23:17:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-13 23:17:00,819 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:00,819 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:00,821 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:00,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:00,822 INFO L82 PathProgramCache]: Analyzing trace with hash -72457433, now seen corresponding path program 1 times [2019-10-13 23:17:00,822 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:00,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605128943] [2019-10-13 23:17:00,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:01,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605128943] [2019-10-13 23:17:01,044 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:01,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:01,045 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414759685] [2019-10-13 23:17:01,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:01,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:01,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:01,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:01,048 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand 7 states. [2019-10-13 23:17:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:01,362 INFO L93 Difference]: Finished difference Result 206 states and 237 transitions. [2019-10-13 23:17:01,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:17:01,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-10-13 23:17:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:01,365 INFO L225 Difference]: With dead ends: 206 [2019-10-13 23:17:01,365 INFO L226 Difference]: Without dead ends: 114 [2019-10-13 23:17:01,367 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 23:17:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-13 23:17:01,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-13 23:17:01,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-13 23:17:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2019-10-13 23:17:01,392 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 45 [2019-10-13 23:17:01,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:01,393 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2019-10-13 23:17:01,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2019-10-13 23:17:01,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-13 23:17:01,395 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:01,396 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:01,396 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:01,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:01,398 INFO L82 PathProgramCache]: Analyzing trace with hash 138210273, now seen corresponding path program 1 times [2019-10-13 23:17:01,399 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:01,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834923593] [2019-10-13 23:17:01,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:01,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834923593] [2019-10-13 23:17:01,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:01,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:17:01,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623039916] [2019-10-13 23:17:01,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:17:01,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:01,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:17:01,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:17:01,501 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 5 states. [2019-10-13 23:17:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:01,984 INFO L93 Difference]: Finished difference Result 296 states and 347 transitions. [2019-10-13 23:17:01,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:01,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-10-13 23:17:01,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:01,989 INFO L225 Difference]: With dead ends: 296 [2019-10-13 23:17:01,989 INFO L226 Difference]: Without dead ends: 204 [2019-10-13 23:17:01,993 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 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 23:17:01,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-10-13 23:17:02,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 189. [2019-10-13 23:17:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-10-13 23:17:02,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 206 transitions. [2019-10-13 23:17:02,045 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 206 transitions. Word has length 62 [2019-10-13 23:17:02,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:02,046 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 206 transitions. [2019-10-13 23:17:02,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:17:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 206 transitions. [2019-10-13 23:17:02,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 23:17:02,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:02,054 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:02,054 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:02,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:02,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2141093705, now seen corresponding path program 1 times [2019-10-13 23:17:02,055 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:02,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840083142] [2019-10-13 23:17:02,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:02,255 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840083142] [2019-10-13 23:17:02,256 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:02,256 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:02,256 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755398373] [2019-10-13 23:17:02,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:02,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:02,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:02,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:02,257 INFO L87 Difference]: Start difference. First operand 189 states and 206 transitions. Second operand 10 states. [2019-10-13 23:17:02,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:02,737 INFO L93 Difference]: Finished difference Result 538 states and 613 transitions. [2019-10-13 23:17:02,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:02,740 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-10-13 23:17:02,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:02,746 INFO L225 Difference]: With dead ends: 538 [2019-10-13 23:17:02,746 INFO L226 Difference]: Without dead ends: 371 [2019-10-13 23:17:02,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:17:02,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-10-13 23:17:02,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 357. [2019-10-13 23:17:02,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-10-13 23:17:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 394 transitions. [2019-10-13 23:17:02,818 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 394 transitions. Word has length 72 [2019-10-13 23:17:02,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:02,820 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 394 transitions. [2019-10-13 23:17:02,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 394 transitions. [2019-10-13 23:17:02,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:17:02,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:02,826 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:02,826 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:02,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:02,827 INFO L82 PathProgramCache]: Analyzing trace with hash -238332763, now seen corresponding path program 1 times [2019-10-13 23:17:02,827 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:02,827 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715362776] [2019-10-13 23:17:02,827 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,827 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 23:17:03,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715362776] [2019-10-13 23:17:03,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857004390] [2019-10-13 23:17:03,181 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 23:17:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:03,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-13 23:17:03,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:17:03,590 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:04,056 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:17:04,056 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:04,057 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [14] total 26 [2019-10-13 23:17:04,057 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873357868] [2019-10-13 23:17:04,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:17:04,058 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:04,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:17:04,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:17:04,060 INFO L87 Difference]: Start difference. First operand 357 states and 394 transitions. Second operand 14 states. [2019-10-13 23:17:05,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:05,425 INFO L93 Difference]: Finished difference Result 858 states and 952 transitions. [2019-10-13 23:17:05,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 23:17:05,425 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 115 [2019-10-13 23:17:05,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:05,431 INFO L225 Difference]: With dead ends: 858 [2019-10-13 23:17:05,431 INFO L226 Difference]: Without dead ends: 691 [2019-10-13 23:17:05,433 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:17:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-10-13 23:17:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 688. [2019-10-13 23:17:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2019-10-13 23:17:05,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 761 transitions. [2019-10-13 23:17:05,501 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 761 transitions. Word has length 115 [2019-10-13 23:17:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:05,502 INFO L462 AbstractCegarLoop]: Abstraction has 688 states and 761 transitions. [2019-10-13 23:17:05,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:17:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 761 transitions. [2019-10-13 23:17:05,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:17:05,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:05,510 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:05,717 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:05,717 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,718 INFO L82 PathProgramCache]: Analyzing trace with hash 212382282, now seen corresponding path program 1 times [2019-10-13 23:17:05,718 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,718 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483213651] [2019-10-13 23:17:05,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 23:17:06,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483213651] [2019-10-13 23:17:06,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43198548] [2019-10-13 23:17:06,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:06,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:17:06,324 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:06,502 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:06,502 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [14] total 19 [2019-10-13 23:17:06,503 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52549900] [2019-10-13 23:17:06,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:06,504 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:06,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:06,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:17:06,505 INFO L87 Difference]: Start difference. First operand 688 states and 761 transitions. Second operand 7 states. [2019-10-13 23:17:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:06,800 INFO L93 Difference]: Finished difference Result 703 states and 777 transitions. [2019-10-13 23:17:06,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:06,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2019-10-13 23:17:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:06,805 INFO L225 Difference]: With dead ends: 703 [2019-10-13 23:17:06,806 INFO L226 Difference]: Without dead ends: 700 [2019-10-13 23:17:06,807 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:17:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2019-10-13 23:17:06,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 688. [2019-10-13 23:17:06,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2019-10-13 23:17:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 759 transitions. [2019-10-13 23:17:06,858 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 759 transitions. Word has length 115 [2019-10-13 23:17:06,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:06,859 INFO L462 AbstractCegarLoop]: Abstraction has 688 states and 759 transitions. [2019-10-13 23:17:06,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 759 transitions. [2019-10-13 23:17:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:17:06,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:06,864 INFO L380 BasicCegarLoop]: trace histogram [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, 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] [2019-10-13 23:17:07,071 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:07,072 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:07,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:07,073 INFO L82 PathProgramCache]: Analyzing trace with hash -233038195, now seen corresponding path program 1 times [2019-10-13 23:17:07,073 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:07,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771041660] [2019-10-13 23:17:07,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 23:17:07,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771041660] [2019-10-13 23:17:07,344 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:07,344 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:17:07,345 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356130526] [2019-10-13 23:17:07,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:17:07,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:07,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:17:07,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:17:07,346 INFO L87 Difference]: Start difference. First operand 688 states and 759 transitions. Second operand 14 states. [2019-10-13 23:17:07,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:07,704 INFO L93 Difference]: Finished difference Result 1266 states and 1446 transitions. [2019-10-13 23:17:07,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:17:07,708 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 125 [2019-10-13 23:17:07,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:07,717 INFO L225 Difference]: With dead ends: 1266 [2019-10-13 23:17:07,717 INFO L226 Difference]: Without dead ends: 936 [2019-10-13 23:17:07,719 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-13 23:17:07,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2019-10-13 23:17:07,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 800. [2019-10-13 23:17:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2019-10-13 23:17:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 895 transitions. [2019-10-13 23:17:07,777 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 895 transitions. Word has length 125 [2019-10-13 23:17:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:07,779 INFO L462 AbstractCegarLoop]: Abstraction has 800 states and 895 transitions. [2019-10-13 23:17:07,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:17:07,779 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 895 transitions. [2019-10-13 23:17:07,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-13 23:17:07,785 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:07,786 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2019-10-13 23:17:07,786 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:07,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:07,787 INFO L82 PathProgramCache]: Analyzing trace with hash -2123371978, now seen corresponding path program 1 times [2019-10-13 23:17:07,787 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:07,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606073237] [2019-10-13 23:17:07,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,121 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:17:08,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606073237] [2019-10-13 23:17:08,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658522254] [2019-10-13 23:17:08,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-13 23:17:08,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 23:17:08,590 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:08,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:08,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:08,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:09,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1349661477] [2019-10-13 23:17:09,735 INFO L162 IcfgInterpreter]: Started Sifa with 106 locations of interest [2019-10-13 23:17:09,735 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:09,741 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:09,747 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:09,748 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:18,960 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:20,728 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:20,863 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:21,034 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:21,258 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:21,720 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,009 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,239 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,485 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,898 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:23,114 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:23,396 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:23,611 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:23,828 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:23,979 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:23,987 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:24,247 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-13 23:17:24,248 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:17:24,389 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:24,535 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:24,660 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:24,792 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:24,912 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:25,037 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:25,199 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:25,306 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:25,442 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:25,670 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 546 [2019-10-13 23:17:25,804 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:25,933 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:26,042 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:26,147 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:26,269 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:26,370 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:26,490 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:26,631 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:26,746 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:26,852 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:26,970 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:27,074 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:27,176 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:27,311 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:27,417 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:27,519 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:27,635 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:27,742 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:27,844 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:27,966 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:28,104 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:28,208 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:28,331 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:28,433 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:28,538 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:28,655 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:28,762 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:28,885 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:17:29,004 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:29,154 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:29,263 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:29,387 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:29,672 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-13 23:17:29,786 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:29,932 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:30,056 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:30,168 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:30,286 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:30,415 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:30,547 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:30,671 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,889 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:31,013 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,143 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,363 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-13 23:17:31,472 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:31,594 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,715 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:31,824 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:17:31,962 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,088 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,198 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,388 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:32,518 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,628 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,752 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:32,966 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 556 [2019-10-13 23:17:33,096 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,359 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:33,583 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,709 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,833 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:34,041 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-13 23:17:34,154 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:34,274 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:34,500 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-13 23:17:34,612 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:34,735 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:34,844 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:34,956 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:35,076 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:17:35,371 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:35,484 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,607 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,834 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:35,945 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,078 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,192 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,304 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,430 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556