/usr/bin/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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:33:50,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:33:50,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:33:50,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:33:50,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:33:50,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:33:50,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:33:50,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:33:50,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:33:50,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:33:50,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:33:50,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:33:50,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:33:50,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:33:50,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:33:50,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:33:50,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:33:50,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:33:50,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:33:50,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:33:50,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:33:50,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:33:50,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:33:50,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:33:50,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:33:50,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:33:50,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:33:50,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:33:50,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:33:50,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:33:50,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:33:50,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:33:50,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:33:50,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:33:50,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:33:50,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:33:50,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:33:50,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:33:50,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:33:50,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:33:50,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:33:50,201 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 [2019-11-07 04:33:50,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:33:50,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:33:50,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:33:50,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:33:50,224 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:33:50,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:33:50,225 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:33:50,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:33:50,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:33:50,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:33:50,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:33:50,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:33:50,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:33:50,226 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:33:50,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:33:50,227 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:33:50,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:33:50,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:33:50,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:33:50,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:33:50,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:33:50,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:33:50,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:33:50,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:33:50,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:33:50,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:33:50,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:33:50,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:33:50,229 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 [2019-11-07 04:33:50,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:33:50,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:33:50,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:33:50,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:33:50,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:33:50,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-11-07 04:33:50,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24435fe0b/d12e50b93ba94975a37ffbe42466550d/FLAGe0cce9b82 [2019-11-07 04:33:51,081 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:33:51,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-11-07 04:33:51,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24435fe0b/d12e50b93ba94975a37ffbe42466550d/FLAGe0cce9b82 [2019-11-07 04:33:51,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24435fe0b/d12e50b93ba94975a37ffbe42466550d [2019-11-07 04:33:51,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:33:51,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:33:51,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:51,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:33:51,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:33:51,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:51" (1/1) ... [2019-11-07 04:33:51,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199fd355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:51, skipping insertion in model container [2019-11-07 04:33:51,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:51" (1/1) ... [2019-11-07 04:33:51,441 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:33:51,509 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:33:51,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:51,989 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:33:52,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:52,134 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:33:52,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52 WrapperNode [2019-11-07 04:33:52,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:52,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:33:52,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:33:52,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:33:52,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (1/1) ... [2019-11-07 04:33:52,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (1/1) ... [2019-11-07 04:33:52,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (1/1) ... [2019-11-07 04:33:52,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (1/1) ... [2019-11-07 04:33:52,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (1/1) ... [2019-11-07 04:33:52,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (1/1) ... [2019-11-07 04:33:52,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (1/1) ... [2019-11-07 04:33:52,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:33:52,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:33:52,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:33:52,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:33:52,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (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 [2019-11-07 04:33:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:33:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:33:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:33:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:33:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:33:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:33:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:33:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:33:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:33:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:33:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:33:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:33:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:33:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:33:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:33:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:33:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:33:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:33:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:33:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:33:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:33:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:33:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:33:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:33:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:33:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:33:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:33:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:33:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:33:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:33:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:33:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:33:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:33:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:33:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-07 04:33:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:33:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:33:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:33:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:33:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:33:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:33:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:33:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:33:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:33:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:33:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:33:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:33:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:33:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:33:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:33:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:33:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:33:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:33:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:33:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:33:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:33:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:33:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:33:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:33:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:33:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:33:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:33:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:33:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:33:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:33:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:33:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:33:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:33:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:33:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:33:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:33:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:33:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:33:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:33:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:33:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:33:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-07 04:33:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:33:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:33:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:33:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:33:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:33:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:33:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:33:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:33:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:33:53,907 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:33:53,908 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:33:53,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:53 BoogieIcfgContainer [2019-11-07 04:33:53,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:33:53,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:33:53,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:33:53,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:33:53,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:33:51" (1/3) ... [2019-11-07 04:33:53,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239a3f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:53, skipping insertion in model container [2019-11-07 04:33:53,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:52" (2/3) ... [2019-11-07 04:33:53,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239a3f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:53, skipping insertion in model container [2019-11-07 04:33:53,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:53" (3/3) ... [2019-11-07 04:33:53,920 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2019-11-07 04:33:53,933 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:33:53,943 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:33:53,956 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:33:53,987 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:33:53,987 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:33:53,987 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:33:53,988 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:33:53,988 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:33:53,988 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:33:53,988 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:33:53,989 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:33:54,016 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2019-11-07 04:33:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-07 04:33:54,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:54,027 INFO L410 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] [2019-11-07 04:33:54,030 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:54,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:54,037 INFO L82 PathProgramCache]: Analyzing trace with hash -54697865, now seen corresponding path program 1 times [2019-11-07 04:33:54,050 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:54,050 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652929719] [2019-11-07 04:33:54,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:54,436 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652929719] [2019-11-07 04:33:54,437 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:54,437 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:33:54,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901184021] [2019-11-07 04:33:54,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:33:54,444 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:54,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:33:54,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:33:54,458 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2019-11-07 04:33:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:54,501 INFO L93 Difference]: Finished difference Result 245 states and 290 transitions. [2019-11-07 04:33:54,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:33:54,504 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-11-07 04:33:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:54,518 INFO L225 Difference]: With dead ends: 245 [2019-11-07 04:33:54,518 INFO L226 Difference]: Without dead ends: 123 [2019-11-07 04:33:54,523 INFO L630 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 [2019-11-07 04:33:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-11-07 04:33:54,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-11-07 04:33:54,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-07 04:33:54,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2019-11-07 04:33:54,581 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 42 [2019-11-07 04:33:54,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:54,582 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2019-11-07 04:33:54,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:33:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2019-11-07 04:33:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 04:33:54,586 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:54,587 INFO L410 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] [2019-11-07 04:33:54,587 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:54,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1882335780, now seen corresponding path program 1 times [2019-11-07 04:33:54,588 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:54,588 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096611179] [2019-11-07 04:33:54,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:54,704 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096611179] [2019-11-07 04:33:54,705 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:54,706 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:33:54,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757073358] [2019-11-07 04:33:54,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:33:54,708 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:54,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:33:54,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:33:54,709 INFO L87 Difference]: Start difference. First operand 123 states and 139 transitions. Second operand 3 states. [2019-11-07 04:33:54,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:54,755 INFO L93 Difference]: Finished difference Result 199 states and 224 transitions. [2019-11-07 04:33:54,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:33:54,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-11-07 04:33:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:54,761 INFO L225 Difference]: With dead ends: 199 [2019-11-07 04:33:54,762 INFO L226 Difference]: Without dead ends: 115 [2019-11-07 04:33:54,767 INFO L630 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 [2019-11-07 04:33:54,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-07 04:33:54,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-11-07 04:33:54,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-07 04:33:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2019-11-07 04:33:54,798 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 43 [2019-11-07 04:33:54,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:54,798 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2019-11-07 04:33:54,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:33:54,799 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2019-11-07 04:33:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 04:33:54,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:54,802 INFO L410 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] [2019-11-07 04:33:54,802 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:54,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:54,805 INFO L82 PathProgramCache]: Analyzing trace with hash 829023992, now seen corresponding path program 1 times [2019-11-07 04:33:54,805 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:54,805 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12389972] [2019-11-07 04:33:54,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:55,010 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12389972] [2019-11-07 04:33:55,011 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:55,013 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:33:55,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115951575] [2019-11-07 04:33:55,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:33:55,014 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:55,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:33:55,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:33:55,015 INFO L87 Difference]: Start difference. First operand 115 states and 128 transitions. Second operand 7 states. [2019-11-07 04:33:55,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:55,370 INFO L93 Difference]: Finished difference Result 208 states and 235 transitions. [2019-11-07 04:33:55,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:33:55,370 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-11-07 04:33:55,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:55,375 INFO L225 Difference]: With dead ends: 208 [2019-11-07 04:33:55,375 INFO L226 Difference]: Without dead ends: 115 [2019-11-07 04:33:55,377 INFO L630 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 [2019-11-07 04:33:55,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-07 04:33:55,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-11-07 04:33:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-07 04:33:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2019-11-07 04:33:55,404 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 46 [2019-11-07 04:33:55,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:55,404 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2019-11-07 04:33:55,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:33:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2019-11-07 04:33:55,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-07 04:33:55,408 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:55,409 INFO L410 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] [2019-11-07 04:33:55,412 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:55,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:55,412 INFO L82 PathProgramCache]: Analyzing trace with hash 910300140, now seen corresponding path program 1 times [2019-11-07 04:33:55,413 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:55,413 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109769976] [2019-11-07 04:33:55,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:55,575 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109769976] [2019-11-07 04:33:55,575 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:55,576 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:33:55,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711084711] [2019-11-07 04:33:55,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:33:55,577 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:55,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:33:55,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:33:55,577 INFO L87 Difference]: Start difference. First operand 115 states and 127 transitions. Second operand 5 states. [2019-11-07 04:33:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:56,050 INFO L93 Difference]: Finished difference Result 298 states and 346 transitions. [2019-11-07 04:33:56,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:33:56,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-11-07 04:33:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:56,053 INFO L225 Difference]: With dead ends: 298 [2019-11-07 04:33:56,053 INFO L226 Difference]: Without dead ends: 205 [2019-11-07 04:33:56,076 INFO L630 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 [2019-11-07 04:33:56,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-11-07 04:33:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 188. [2019-11-07 04:33:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2019-11-07 04:33:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 206 transitions. [2019-11-07 04:33:56,114 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 206 transitions. Word has length 59 [2019-11-07 04:33:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:56,116 INFO L462 AbstractCegarLoop]: Abstraction has 188 states and 206 transitions. [2019-11-07 04:33:56,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:33:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 206 transitions. [2019-11-07 04:33:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-07 04:33:56,119 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:56,120 INFO L410 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] [2019-11-07 04:33:56,120 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:56,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:56,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1863277608, now seen corresponding path program 1 times [2019-11-07 04:33:56,121 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:56,121 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604027190] [2019-11-07 04:33:56,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:56,257 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604027190] [2019-11-07 04:33:56,258 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:56,258 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:33:56,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231481017] [2019-11-07 04:33:56,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:33:56,260 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:56,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:33:56,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:33:56,262 INFO L87 Difference]: Start difference. First operand 188 states and 206 transitions. Second operand 10 states. [2019-11-07 04:33:56,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:56,768 INFO L93 Difference]: Finished difference Result 568 states and 651 transitions. [2019-11-07 04:33:56,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:33:56,771 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2019-11-07 04:33:56,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:56,779 INFO L225 Difference]: With dead ends: 568 [2019-11-07 04:33:56,780 INFO L226 Difference]: Without dead ends: 402 [2019-11-07 04:33:56,782 INFO L630 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 [2019-11-07 04:33:56,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-11-07 04:33:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 388. [2019-11-07 04:33:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-11-07 04:33:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 432 transitions. [2019-11-07 04:33:56,851 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 432 transitions. Word has length 68 [2019-11-07 04:33:56,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:56,852 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 432 transitions. [2019-11-07 04:33:56,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:33:56,852 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 432 transitions. [2019-11-07 04:33:56,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-11-07 04:33:56,856 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:56,856 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:56,857 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:56,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:56,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1025437802, now seen corresponding path program 1 times [2019-11-07 04:33:56,857 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:56,858 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190444283] [2019-11-07 04:33:56,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:33:57,055 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190444283] [2019-11-07 04:33:57,055 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978784285] [2019-11-07 04:33:57,055 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 [2019-11-07 04:33:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:57,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 04:33:57,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:57,352 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:33:57,651 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:33:57,651 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-11-07 04:33:57,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000855426] [2019-11-07 04:33:57,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:33:57,652 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:57,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:33:57,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:33:57,653 INFO L87 Difference]: Start difference. First operand 388 states and 432 transitions. Second operand 3 states. [2019-11-07 04:33:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:57,742 INFO L93 Difference]: Finished difference Result 757 states and 844 transitions. [2019-11-07 04:33:57,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:33:57,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-11-07 04:33:57,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:57,751 INFO L225 Difference]: With dead ends: 757 [2019-11-07 04:33:57,751 INFO L226 Difference]: Without dead ends: 391 [2019-11-07 04:33:57,753 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:33:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-11-07 04:33:57,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 355. [2019-11-07 04:33:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-11-07 04:33:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 380 transitions. [2019-11-07 04:33:57,800 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 380 transitions. Word has length 130 [2019-11-07 04:33:57,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:57,800 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 380 transitions. [2019-11-07 04:33:57,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:33:57,801 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 380 transitions. [2019-11-07 04:33:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-07 04:33:57,804 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:57,805 INFO L410 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] [2019-11-07 04:33:58,010 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:33:58,011 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:58,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:58,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1716243847, now seen corresponding path program 1 times [2019-11-07 04:33:58,012 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:58,012 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488853608] [2019-11-07 04:33:58,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 04:33:58,157 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488853608] [2019-11-07 04:33:58,157 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753253119] [2019-11-07 04:33:58,157 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 [2019-11-07 04:33:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:58,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 04:33:58,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:33:58,425 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-11-07 04:33:58,651 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:33:58,651 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-11-07 04:33:58,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142131526] [2019-11-07 04:33:58,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:33:58,655 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:58,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:33:58,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:33:58,655 INFO L87 Difference]: Start difference. First operand 355 states and 380 transitions. Second operand 7 states. [2019-11-07 04:33:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:58,877 INFO L93 Difference]: Finished difference Result 364 states and 389 transitions. [2019-11-07 04:33:58,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:33:58,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2019-11-07 04:33:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:58,885 INFO L225 Difference]: With dead ends: 364 [2019-11-07 04:33:58,885 INFO L226 Difference]: Without dead ends: 361 [2019-11-07 04:33:58,888 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:33:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-11-07 04:33:58,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 355. [2019-11-07 04:33:58,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-11-07 04:33:58,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 379 transitions. [2019-11-07 04:33:58,925 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 379 transitions. Word has length 117 [2019-11-07 04:33:58,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:58,926 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 379 transitions. [2019-11-07 04:33:58,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:33:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 379 transitions. [2019-11-07 04:33:58,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-07 04:33:58,933 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:58,933 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:33:59,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:33:59,138 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:59,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:59,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1803065979, now seen corresponding path program 1 times [2019-11-07 04:33:59,139 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:59,140 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312305681] [2019-11-07 04:33:59,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 04:33:59,501 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312305681] [2019-11-07 04:33:59,501 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860201427] [2019-11-07 04:33:59,501 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 [2019-11-07 04:33:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:59,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-07 04:33:59,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:59,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:59,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:34:00,051 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:34:00,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:01,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:01,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:01,388 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 04:34:01,639 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:34:01,640 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-11-07 04:34:01,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127661788] [2019-11-07 04:34:01,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:34:01,641 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:34:01,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:34:01,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 04:34:01,642 INFO L87 Difference]: Start difference. First operand 355 states and 379 transitions. Second operand 14 states. [2019-11-07 04:34:03,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:34:03,944 INFO L93 Difference]: Finished difference Result 852 states and 963 transitions. [2019-11-07 04:34:03,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-07 04:34:03,944 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2019-11-07 04:34:03,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:34:03,949 INFO L225 Difference]: With dead ends: 852 [2019-11-07 04:34:03,949 INFO L226 Difference]: Without dead ends: 519 [2019-11-07 04:34:03,953 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 232 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=388, Invalid=2474, Unknown=0, NotChecked=0, Total=2862 [2019-11-07 04:34:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-11-07 04:34:03,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 494. [2019-11-07 04:34:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-11-07 04:34:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 546 transitions. [2019-11-07 04:34:03,995 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 546 transitions. Word has length 127 [2019-11-07 04:34:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:34:03,996 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 546 transitions. [2019-11-07 04:34:03,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:34:03,996 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 546 transitions. [2019-11-07 04:34:04,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-11-07 04:34:04,000 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:34:04,000 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2019-11-07 04:34:04,205 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:34:04,206 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:34:04,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:34:04,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1712874978, now seen corresponding path program 1 times [2019-11-07 04:34:04,207 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:34:04,207 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440025342] [2019-11-07 04:34:04,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:34:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-07 04:34:04,441 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440025342] [2019-11-07 04:34:04,441 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937488705] [2019-11-07 04:34:04,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:34:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:34:04,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 49 conjunts are in the unsatisfiable core [2019-11-07 04:34:04,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:34:04,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:04,922 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:34:04,923 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:34:05,242 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:34:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-07 04:34:05,720 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [997359085] [2019-11-07 04:34:05,748 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2019-11-07 04:34:05,748 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:34:05,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:34:05,764 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:34:05,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:34:17,358 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-11-07 04:34:18,941 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:34:19,067 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:19,242 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:19,372 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:19,601 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:34:19,752 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:19,876 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:34:20,105 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:34:20,114 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-11-07 04:34:20,129 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-11-07 04:34:20,352 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-11-07 04:34:20,516 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-11-07 04:34:20,705 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:20,847 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-11-07 04:34:21,002 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-11-07 04:34:21,134 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:21,267 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-11-07 04:34:21,375 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-11-07 04:34:21,500 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:21,740 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-11-07 04:34:21,870 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,026 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,135 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,266 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,409 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,521 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,637 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,745 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,869 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:22,984 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:23,092 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:23,200 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:23,317 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:34:23,521 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:34:23,658 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:34:23,782 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:34:23,891 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:34:23,999 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:34:24,117 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:34:24,326 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:34:24,435 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:34:24,564 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:34:24,673 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:34:24,801 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:34:24,925 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:34:24,945 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-11-07 04:34:24,961 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 544 for LOIs [2019-11-07 04:34:25,268 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-11-07 04:34:25,713 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:34:26,245 WARN L191 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 571 [2019-11-07 04:34:26,716 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 574 [2019-11-07 04:34:27,354 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 195 [2019-11-07 04:34:27,592 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 619 [2019-11-07 04:34:28,348 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 195 [2019-11-07 04:34:28,537 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-07 04:34:28,718 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 167 [2019-11-07 04:34:28,860 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-07 04:34:29,093 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 168 [2019-11-07 04:34:29,287 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 168 [2019-11-07 04:34:29,616 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 615 [2019-11-07 04:34:29,746 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 133 for LOIs [2019-11-07 04:34:29,749 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 136 for LOIs