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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:16:54,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:16:54,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:16:54,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:16:54,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:16:54,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:16:54,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:16:54,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:16:54,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:16:54,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:16:54,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:16:54,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:16:54,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:16:55,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:16:55,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:16:55,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:16:55,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:16:55,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:16:55,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:16:55,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:16:55,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:16:55,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:16:55,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:16:55,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:16:55,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:16:55,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:16:55,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:16:55,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:16:55,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:16:55,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:16:55,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:16:55,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:16:55,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:16:55,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:16:55,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:16:55,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:16:55,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:16:55,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:16:55,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:16:55,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:16:55,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:16:55,024 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 23:16:55,040 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:16:55,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:16:55,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:16:55,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:16:55,042 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:16:55,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:16:55,043 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:16:55,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:16:55,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:16:55,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:16:55,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:16:55,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:16:55,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:16:55,044 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:16:55,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:16:55,044 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:16:55,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:16:55,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:16:55,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:16:55,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:16:55,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:16:55,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:55,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:16:55,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:16:55,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:16:55,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:16:55,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:16:55,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:16:55,047 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 23:16:55,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:16:55,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:16:55,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:16:55,366 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:16:55,366 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:16:55,370 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-10-13 23:16:55,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497f01ddf/e6fb0686ca3149e3985b08faa545a63f/FLAG15ca1163a [2019-10-13 23:16:56,041 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:16:56,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-10-13 23:16:56,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497f01ddf/e6fb0686ca3149e3985b08faa545a63f/FLAG15ca1163a [2019-10-13 23:16:56,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497f01ddf/e6fb0686ca3149e3985b08faa545a63f [2019-10-13 23:16:56,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:16:56,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:16:56,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:56,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:16:56,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:16:56,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:56,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9061149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56, skipping insertion in model container [2019-10-13 23:16:56,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:56,284 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:16:56,330 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:16:56,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:56,808 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:16:56,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:56,966 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:16:56,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56 WrapperNode [2019-10-13 23:16:56,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:56,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:16:56,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:16:56,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:16:56,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:56,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:57,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:57,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:57,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:57,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:57,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (1/1) ... [2019-10-13 23:16:57,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:16:57,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:16:57,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:16:57,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:16:57,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (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 23:16:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:16:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:16:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:16:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:16:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:16:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:16:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:16:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:16:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:16:57,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:16:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:16:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:16:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:57,179 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:16:57,180 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:16:57,182 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:16:57,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:16:57,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:16:57,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:16:57,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:16:57,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:16:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:16:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:16:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:16:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:57,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:16:57,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:16:57,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:16:57,185 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:16:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:16:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:16:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:16:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:16:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:16:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:16:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:16:57,187 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:16:57,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:16:57,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:16:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:16:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:16:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:16:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:16:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:16:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:16:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:16:57,188 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:16:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:16:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:16:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:16:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:16:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:16:57,189 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:16:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:16:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:16:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:16:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:16:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:16:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:16:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:16:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:16:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:16:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:16:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:16:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:16:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:16:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:16:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:16:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:16:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:16:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:16:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:16:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:16:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:16:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:16:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:16:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:16:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:16:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:16:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:16:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:16:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:16:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:16:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:16:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:16:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:16:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:16:57,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:16:58,814 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:16:58,814 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:16:58,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:58 BoogieIcfgContainer [2019-10-13 23:16:58,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:16:58,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:16:58,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:16:58,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:16:58,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:16:56" (1/3) ... [2019-10-13 23:16:58,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e9db59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:58, skipping insertion in model container [2019-10-13 23:16:58,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:56" (2/3) ... [2019-10-13 23:16:58,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e9db59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:16:58, skipping insertion in model container [2019-10-13 23:16:58,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:16:58" (3/3) ... [2019-10-13 23:16:58,829 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-10-13 23:16:58,840 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:16:58,849 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:16:58,861 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:16:58,893 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:16:58,894 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:16:58,894 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:16:58,894 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:16:58,894 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:16:58,894 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:16:58,895 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:16:58,895 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:16:58,928 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-13 23:16:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:16:58,937 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:58,939 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 23:16:58,941 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash 588811842, now seen corresponding path program 1 times [2019-10-13 23:16:58,958 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:58,958 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967457643] [2019-10-13 23:16:58,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:58,959 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:58,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:59,302 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 23:16:59,303 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967457643] [2019-10-13 23:16:59,304 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:59,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:16:59,305 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780418310] [2019-10-13 23:16:59,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:16:59,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:59,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:16:59,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:16:59,337 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-13 23:16:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:59,386 INFO L93 Difference]: Finished difference Result 231 states and 280 transitions. [2019-10-13 23:16:59,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:16:59,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:16:59,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:59,410 INFO L225 Difference]: With dead ends: 231 [2019-10-13 23:16:59,411 INFO L226 Difference]: Without dead ends: 116 [2019-10-13 23:16:59,423 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 23:16:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-13 23:16:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-13 23:16:59,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-13 23:16:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-10-13 23:16:59,517 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 42 [2019-10-13 23:16:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:59,518 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-10-13 23:16:59,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:16:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-10-13 23:16:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:16:59,521 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:59,522 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 23:16:59,522 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:59,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2031994381, now seen corresponding path program 1 times [2019-10-13 23:16:59,523 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:59,523 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071076858] [2019-10-13 23:16:59,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:59,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:59,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:16:59,674 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 23:16:59,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071076858] [2019-10-13 23:16:59,675 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:16:59,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:16:59,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668280677] [2019-10-13 23:16:59,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:16:59,678 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:16:59,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:16:59,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:16:59,678 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-10-13 23:16:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:16:59,717 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2019-10-13 23:16:59,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:16:59,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:16:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:16:59,723 INFO L225 Difference]: With dead ends: 179 [2019-10-13 23:16:59,723 INFO L226 Difference]: Without dead ends: 108 [2019-10-13 23:16:59,725 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 23:16:59,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-13 23:16:59,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-13 23:16:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-13 23:16:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2019-10-13 23:16:59,752 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 43 [2019-10-13 23:16:59,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:16:59,753 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2019-10-13 23:16:59,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:16:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2019-10-13 23:16:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:16:59,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:16:59,762 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] [2019-10-13 23:16:59,762 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:16:59,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:16:59,763 INFO L82 PathProgramCache]: Analyzing trace with hash -418862698, now seen corresponding path program 1 times [2019-10-13 23:16:59,763 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:16:59,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368560393] [2019-10-13 23:16:59,764 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:59,764 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:16:59,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:16:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:00,023 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 23:17:00,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368560393] [2019-10-13 23:17:00,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:00,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:00,024 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380969581] [2019-10-13 23:17:00,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:00,025 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:00,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:00,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:00,026 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2019-10-13 23:17:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:00,502 INFO L93 Difference]: Finished difference Result 325 states and 385 transitions. [2019-10-13 23:17:00,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:00,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-13 23:17:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:00,508 INFO L225 Difference]: With dead ends: 325 [2019-10-13 23:17:00,508 INFO L226 Difference]: Without dead ends: 239 [2019-10-13 23:17:00,510 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-10-13 23:17:00,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 227. [2019-10-13 23:17:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-13 23:17:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 268 transitions. [2019-10-13 23:17:00,576 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 268 transitions. Word has length 47 [2019-10-13 23:17:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:00,576 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 268 transitions. [2019-10-13 23:17:00,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 268 transitions. [2019-10-13 23:17:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:17:00,580 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:00,580 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] [2019-10-13 23:17:00,581 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:00,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:00,581 INFO L82 PathProgramCache]: Analyzing trace with hash -450314022, now seen corresponding path program 1 times [2019-10-13 23:17:00,582 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:00,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499068352] [2019-10-13 23:17:00,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:00,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:00,749 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 23:17:00,750 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499068352] [2019-10-13 23:17:00,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:00,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:00,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631101139] [2019-10-13 23:17:00,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:00,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:00,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:00,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:00,752 INFO L87 Difference]: Start difference. First operand 227 states and 268 transitions. Second operand 10 states. [2019-10-13 23:17:01,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:01,397 INFO L93 Difference]: Finished difference Result 803 states and 994 transitions. [2019-10-13 23:17:01,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:01,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-13 23:17:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:01,404 INFO L225 Difference]: With dead ends: 803 [2019-10-13 23:17:01,404 INFO L226 Difference]: Without dead ends: 598 [2019-10-13 23:17:01,406 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 23:17:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2019-10-13 23:17:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 574. [2019-10-13 23:17:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-13 23:17:01,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 695 transitions. [2019-10-13 23:17:01,484 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 695 transitions. Word has length 51 [2019-10-13 23:17:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:01,485 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 695 transitions. [2019-10-13 23:17:01,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:01,485 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 695 transitions. [2019-10-13 23:17:01,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 23:17:01,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:01,491 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] [2019-10-13 23:17:01,491 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:01,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:01,491 INFO L82 PathProgramCache]: Analyzing trace with hash 431309406, now seen corresponding path program 1 times [2019-10-13 23:17:01,492 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:01,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718143512] [2019-10-13 23:17:01,493 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,493 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:01,589 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 23:17:01,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718143512] [2019-10-13 23:17:01,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:01,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:17:01,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35563974] [2019-10-13 23:17:01,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:17:01,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:01,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:17:01,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:01,593 INFO L87 Difference]: Start difference. First operand 574 states and 695 transitions. Second operand 4 states. [2019-10-13 23:17:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:01,898 INFO L93 Difference]: Finished difference Result 1434 states and 1905 transitions. [2019-10-13 23:17:01,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:17:01,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-10-13 23:17:01,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:01,907 INFO L225 Difference]: With dead ends: 1434 [2019-10-13 23:17:01,907 INFO L226 Difference]: Without dead ends: 882 [2019-10-13 23:17:01,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:17:01,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2019-10-13 23:17:01,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 749. [2019-10-13 23:17:01,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-13 23:17:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 896 transitions. [2019-10-13 23:17:01,969 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 896 transitions. Word has length 57 [2019-10-13 23:17:01,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:01,970 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 896 transitions. [2019-10-13 23:17:01,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:17:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 896 transitions. [2019-10-13 23:17:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 23:17:01,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:01,973 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:01,973 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:01,973 INFO L82 PathProgramCache]: Analyzing trace with hash -980024447, now seen corresponding path program 1 times [2019-10-13 23:17:01,974 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:01,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069410639] [2019-10-13 23:17:01,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:02,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069410639] [2019-10-13 23:17:02,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755038644] [2019-10-13 23:17:02,108 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 23:17:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:02,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:02,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:02,377 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:17:02,517 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:02,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:02,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32988755] [2019-10-13 23:17:02,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:02,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:02,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:02,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:02,521 INFO L87 Difference]: Start difference. First operand 749 states and 896 transitions. Second operand 7 states. [2019-10-13 23:17:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:02,761 INFO L93 Difference]: Finished difference Result 762 states and 912 transitions. [2019-10-13 23:17:02,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:02,764 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-13 23:17:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:02,769 INFO L225 Difference]: With dead ends: 762 [2019-10-13 23:17:02,769 INFO L226 Difference]: Without dead ends: 759 [2019-10-13 23:17:02,770 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:17:02,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-13 23:17:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 749. [2019-10-13 23:17:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-13 23:17:02,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 893 transitions. [2019-10-13 23:17:02,835 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 893 transitions. Word has length 79 [2019-10-13 23:17:02,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:02,837 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 893 transitions. [2019-10-13 23:17:02,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 893 transitions. [2019-10-13 23:17:02,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-13 23:17:02,843 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:02,843 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:03,049 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:03,050 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:03,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:03,051 INFO L82 PathProgramCache]: Analyzing trace with hash 946442780, now seen corresponding path program 1 times [2019-10-13 23:17:03,051 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:03,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236611642] [2019-10-13 23:17:03,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:03,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:03,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 23:17:03,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236611642] [2019-10-13 23:17:03,155 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:03,155 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:03,155 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346971494] [2019-10-13 23:17:03,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:03,156 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:03,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:03,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:03,157 INFO L87 Difference]: Start difference. First operand 749 states and 893 transitions. Second operand 3 states. [2019-10-13 23:17:03,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:03,228 INFO L93 Difference]: Finished difference Result 1195 states and 1429 transitions. [2019-10-13 23:17:03,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:03,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2019-10-13 23:17:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:03,236 INFO L225 Difference]: With dead ends: 1195 [2019-10-13 23:17:03,236 INFO L226 Difference]: Without dead ends: 468 [2019-10-13 23:17:03,239 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 23:17:03,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-13 23:17:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 453. [2019-10-13 23:17:03,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-10-13 23:17:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 528 transitions. [2019-10-13 23:17:03,267 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 528 transitions. Word has length 101 [2019-10-13 23:17:03,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:03,267 INFO L462 AbstractCegarLoop]: Abstraction has 453 states and 528 transitions. [2019-10-13 23:17:03,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 528 transitions. [2019-10-13 23:17:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-13 23:17:03,270 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:03,270 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] [2019-10-13 23:17:03,270 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:03,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1540886400, now seen corresponding path program 1 times [2019-10-13 23:17:03,271 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:03,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781122398] [2019-10-13 23:17:03,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:03,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:03,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:17:03,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781122398] [2019-10-13 23:17:03,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447437853] [2019-10-13 23:17:03,389 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 23:17:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:03,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 23:17:03,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:03,683 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:17:03,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1423749104] [2019-10-13 23:17:04,013 INFO L162 IcfgInterpreter]: Started Sifa with 80 locations of interest [2019-10-13 23:17:04,013 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:04,021 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:04,030 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:04,030 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:13,452 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:15,278 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:15,486 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:15,662 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:15,784 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:16,028 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:16,226 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:16,443 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:16,634 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:16,981 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:17,118 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:17,283 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:17,394 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:17,541 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:17,656 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:17,892 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-13 23:17:18,018 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:18,123 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:18,255 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:18,474 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:18,635 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:18,795 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:19,012 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:19,294 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 542 [2019-10-13 23:17:19,419 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:19,622 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:19,756 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:19,979 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:20,111 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:20,328 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:20,431 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:20,533 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:20,648 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:20,763 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:20,974 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:21,178 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:21,294 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:21,399 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:21,528 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:21,645 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:21,955 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:22,279 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:22,482 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:22,598 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:22,747 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:22,855 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:22,998 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,117 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,255 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,379 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,485 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,591 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,707 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,850 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:23,958 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:24,079 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:24,315 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:24,445 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:24,572 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:24,680 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:24,788 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:24,907 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:25,020 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:25,151 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:25,358 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:25,469 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:25,578 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:25,709 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:25,832 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:25,941 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:26,077 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:26,311 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-13 23:17:26,421 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:26,548 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:26,660 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:26,769 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:26,889 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:27,014 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,120 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,239 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,364 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,480 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,605 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,713 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,821 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,937 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,163 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:17:28,275 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,399 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,530 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,640 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,783 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,982 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:17:29,093 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,211 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,433 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 560 [2019-10-13 23:17:29,544 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,726 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,929 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 562 [2019-10-13 23:17:30,039 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:30,162 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:30,281 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,388 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,511 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,628 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,737 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,860 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,967 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,091 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,206 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,332 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,446 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,564 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,674 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,781 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,907 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,017 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,135 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,253 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,465 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:17:32,577 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,702 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:32,909 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:33,019 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:33,141 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,330 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:33,439 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:33,559 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,758 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 560 [2019-10-13 23:17:33,868 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,991 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:34,191 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 562 [2019-10-13 23:17:34,303 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:34,438 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:34,558 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,668 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,787 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,898 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,005 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,126 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,324 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,433 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,555 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,675 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,785 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,906 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,013 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,123 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,241 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,528 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:36,638 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:36,760 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,966 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:37,084 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:37,208 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,328 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,439 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,564 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,675 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,783 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556