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 0.1.24-13a467a-m [2019-10-15 03:21:34,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:21:34,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:21:34,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:21:34,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:21:34,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:21:34,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:21:34,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:21:34,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:21:34,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:21:34,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:21:34,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:21:34,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:21:34,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:21:34,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:21:34,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:21:34,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:21:34,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:21:34,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:21:34,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:21:34,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:21:34,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:21:34,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:21:34,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:21:34,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:21:34,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:21:34,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:21:34,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:21:34,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:21:34,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:21:34,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:21:34,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:21:34,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:21:34,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:21:34,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:21:34,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:21:34,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:21:35,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:21:35,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:21:35,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:21:35,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:21:35,002 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 [2019-10-15 03:21:35,023 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:21:35,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:21:35,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:21:35,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:21:35,026 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:21:35,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:21:35,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:21:35,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:21:35,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:21:35,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:21:35,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:21:35,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:21:35,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:21:35,029 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:21:35,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:21:35,029 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:21:35,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:21:35,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:21:35,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:21:35,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:21:35,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:21:35,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:21:35,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:21:35,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:21:35,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:21:35,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:21:35,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:21:35,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:21:35,032 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 [2019-10-15 03:21:35,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:21:35,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:21:35,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:21:35,331 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:21:35,332 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:21:35,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-10-15 03:21:35,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b30e5409/6721033ebc1c435b8557ce23850556fb/FLAGf14dd11e2 [2019-10-15 03:21:35,967 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:21:35,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-10-15 03:21:35,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b30e5409/6721033ebc1c435b8557ce23850556fb/FLAGf14dd11e2 [2019-10-15 03:21:36,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b30e5409/6721033ebc1c435b8557ce23850556fb [2019-10-15 03:21:36,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:21:36,222 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:21:36,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:36,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:21:36,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:21:36,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb33164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36, skipping insertion in model container [2019-10-15 03:21:36,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,239 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:21:36,294 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:21:36,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:36,792 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:21:36,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:36,946 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:21:36,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36 WrapperNode [2019-10-15 03:21:36,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:36,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:21:36,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:21:36,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:21:36,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:37,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:37,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:37,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:37,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:21:37,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:21:37,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:21:37,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:21:37,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (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 [2019-10-15 03:21:37,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:21:37,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:21:37,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:37,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:21:37,133 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:21:37,134 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:21:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:21:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:21:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:21:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:21:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:21:37,136 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:21:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:21:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:21:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:21:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:21:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:21:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:21:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:21:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:21:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:21:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-15 03:21:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:21:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:21:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:21:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:21:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:21:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:21:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:21:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:21:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:21:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:21:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:21:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:21:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:21:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:21:37,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:21:37,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:21:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:21:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:21:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:21:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:21:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:21:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:21:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:21:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:21:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:21:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:21:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:21:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:21:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:21:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:21:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:21:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:21:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-15 03:21:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:21:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:21:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:21:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:21:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:21:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:21:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:21:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:21:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:21:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:21:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:21:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:37,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:37,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:21:37,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:21:37,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:21:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:21:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:21:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:21:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:21:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:21:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:21:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:21:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:21:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:21:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:21:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:21:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:21:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:21:38,674 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:21:38,676 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:21:38,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:38 BoogieIcfgContainer [2019-10-15 03:21:38,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:21:38,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:21:38,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:21:38,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:21:38,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:21:36" (1/3) ... [2019-10-15 03:21:38,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd2a4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:38, skipping insertion in model container [2019-10-15 03:21:38,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (2/3) ... [2019-10-15 03:21:38,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd2a4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:38, skipping insertion in model container [2019-10-15 03:21:38,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:38" (3/3) ... [2019-10-15 03:21:38,691 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-10-15 03:21:38,703 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:21:38,715 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:21:38,729 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:21:38,770 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:21:38,770 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:21:38,770 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:21:38,770 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:21:38,771 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:21:38,771 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:21:38,772 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:21:38,772 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:21:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-15 03:21:38,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 03:21:38,819 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:38,821 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] [2019-10-15 03:21:38,822 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:38,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:38,827 INFO L82 PathProgramCache]: Analyzing trace with hash 588811842, now seen corresponding path program 1 times [2019-10-15 03:21:38,836 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:38,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820099984] [2019-10-15 03:21:38,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:38,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:38,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:39,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820099984] [2019-10-15 03:21:39,208 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:39,209 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:21:39,209 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019851485] [2019-10-15 03:21:39,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:21:39,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:39,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:21:39,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:21:39,247 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-15 03:21:39,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:39,336 INFO L93 Difference]: Finished difference Result 231 states and 280 transitions. [2019-10-15 03:21:39,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:21:39,338 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 03:21:39,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:39,362 INFO L225 Difference]: With dead ends: 231 [2019-10-15 03:21:39,362 INFO L226 Difference]: Without dead ends: 116 [2019-10-15 03:21:39,374 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 [2019-10-15 03:21:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-15 03:21:39,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-15 03:21:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-15 03:21:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-10-15 03:21:39,469 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 42 [2019-10-15 03:21:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:39,470 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-10-15 03:21:39,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:21:39,471 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-10-15 03:21:39,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:21:39,476 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:39,476 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] [2019-10-15 03:21:39,477 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:39,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:39,479 INFO L82 PathProgramCache]: Analyzing trace with hash -2031994381, now seen corresponding path program 1 times [2019-10-15 03:21:39,479 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:39,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218392421] [2019-10-15 03:21:39,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:39,636 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218392421] [2019-10-15 03:21:39,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:39,637 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:21:39,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306595779] [2019-10-15 03:21:39,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:39,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:39,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:39,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:39,641 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-10-15 03:21:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:39,667 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2019-10-15 03:21:39,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:39,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-15 03:21:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:39,671 INFO L225 Difference]: With dead ends: 179 [2019-10-15 03:21:39,671 INFO L226 Difference]: Without dead ends: 108 [2019-10-15 03:21:39,673 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 [2019-10-15 03:21:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-15 03:21:39,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-15 03:21:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-15 03:21:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2019-10-15 03:21:39,694 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 43 [2019-10-15 03:21:39,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:39,695 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2019-10-15 03:21:39,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2019-10-15 03:21:39,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 03:21:39,700 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:39,702 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] [2019-10-15 03:21:39,702 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:39,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:39,703 INFO L82 PathProgramCache]: Analyzing trace with hash -418862698, now seen corresponding path program 1 times [2019-10-15 03:21:39,703 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:39,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166716013] [2019-10-15 03:21:39,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:39,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166716013] [2019-10-15 03:21:39,934 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:39,934 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:21:39,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982371128] [2019-10-15 03:21:39,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:39,935 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:39,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:39,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:21:39,936 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2019-10-15 03:21:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:40,450 INFO L93 Difference]: Finished difference Result 325 states and 385 transitions. [2019-10-15 03:21:40,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:21:40,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-15 03:21:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:40,456 INFO L225 Difference]: With dead ends: 325 [2019-10-15 03:21:40,457 INFO L226 Difference]: Without dead ends: 239 [2019-10-15 03:21:40,460 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 [2019-10-15 03:21:40,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-10-15 03:21:40,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 227. [2019-10-15 03:21:40,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-15 03:21:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 268 transitions. [2019-10-15 03:21:40,529 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 268 transitions. Word has length 47 [2019-10-15 03:21:40,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:40,530 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 268 transitions. [2019-10-15 03:21:40,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:40,530 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 268 transitions. [2019-10-15 03:21:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 03:21:40,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:40,537 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] [2019-10-15 03:21:40,538 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:40,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:40,538 INFO L82 PathProgramCache]: Analyzing trace with hash -450314022, now seen corresponding path program 1 times [2019-10-15 03:21:40,538 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:40,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236287022] [2019-10-15 03:21:40,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:40,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:40,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:40,751 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236287022] [2019-10-15 03:21:40,751 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:40,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:21:40,752 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83180364] [2019-10-15 03:21:40,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:21:40,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:40,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:21:40,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:21:40,754 INFO L87 Difference]: Start difference. First operand 227 states and 268 transitions. Second operand 10 states. [2019-10-15 03:21:41,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:41,435 INFO L93 Difference]: Finished difference Result 803 states and 994 transitions. [2019-10-15 03:21:41,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:21:41,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-15 03:21:41,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:41,442 INFO L225 Difference]: With dead ends: 803 [2019-10-15 03:21:41,443 INFO L226 Difference]: Without dead ends: 598 [2019-10-15 03:21:41,445 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 [2019-10-15 03:21:41,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2019-10-15 03:21:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 574. [2019-10-15 03:21:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-15 03:21:41,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 695 transitions. [2019-10-15 03:21:41,521 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 695 transitions. Word has length 51 [2019-10-15 03:21:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:41,521 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 695 transitions. [2019-10-15 03:21:41,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:21:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 695 transitions. [2019-10-15 03:21:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 03:21:41,524 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:41,524 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] [2019-10-15 03:21:41,525 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:41,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:41,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1685704043, now seen corresponding path program 1 times [2019-10-15 03:21:41,526 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:41,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567812526] [2019-10-15 03:21:41,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:41,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:41,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:41,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567812526] [2019-10-15 03:21:41,594 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:41,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:21:41,595 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821167483] [2019-10-15 03:21:41,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:21:41,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:41,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:21:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:21:41,597 INFO L87 Difference]: Start difference. First operand 574 states and 695 transitions. Second operand 4 states. [2019-10-15 03:21:41,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:41,951 INFO L93 Difference]: Finished difference Result 1434 states and 1905 transitions. [2019-10-15 03:21:41,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:21:41,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-15 03:21:41,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:41,959 INFO L225 Difference]: With dead ends: 1434 [2019-10-15 03:21:41,959 INFO L226 Difference]: Without dead ends: 882 [2019-10-15 03:21:41,962 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 [2019-10-15 03:21:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2019-10-15 03:21:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 749. [2019-10-15 03:21:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-15 03:21:42,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 896 transitions. [2019-10-15 03:21:42,057 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 896 transitions. Word has length 54 [2019-10-15 03:21:42,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:42,057 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 896 transitions. [2019-10-15 03:21:42,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:21:42,058 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 896 transitions. [2019-10-15 03:21:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-15 03:21:42,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:42,064 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] [2019-10-15 03:21:42,064 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:42,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash -980024447, now seen corresponding path program 1 times [2019-10-15 03:21:42,065 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:42,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400541931] [2019-10-15 03:21:42,065 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:42,065 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:42,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:42,240 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:21:42,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400541931] [2019-10-15 03:21:42,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761115743] [2019-10-15 03:21:42,241 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 [2019-10-15 03:21:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:42,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 03:21:42,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:21:42,491 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:21:42,602 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:21:42,602 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-15 03:21:42,602 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567505454] [2019-10-15 03:21:42,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:42,603 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:42,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:42,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:21:42,604 INFO L87 Difference]: Start difference. First operand 749 states and 896 transitions. Second operand 7 states. [2019-10-15 03:21:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:42,902 INFO L93 Difference]: Finished difference Result 762 states and 912 transitions. [2019-10-15 03:21:42,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:21:42,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-15 03:21:42,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:42,907 INFO L225 Difference]: With dead ends: 762 [2019-10-15 03:21:42,907 INFO L226 Difference]: Without dead ends: 759 [2019-10-15 03:21:42,908 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 [2019-10-15 03:21:42,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-15 03:21:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 749. [2019-10-15 03:21:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-15 03:21:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 893 transitions. [2019-10-15 03:21:42,962 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 893 transitions. Word has length 79 [2019-10-15 03:21:42,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:42,963 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 893 transitions. [2019-10-15 03:21:42,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:42,964 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 893 transitions. [2019-10-15 03:21:42,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-15 03:21:42,967 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:42,968 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] [2019-10-15 03:21:43,172 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:43,173 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:43,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:43,174 INFO L82 PathProgramCache]: Analyzing trace with hash 946442780, now seen corresponding path program 1 times [2019-10-15 03:21:43,174 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:43,175 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981752291] [2019-10-15 03:21:43,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:21:43,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981752291] [2019-10-15 03:21:43,259 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:43,259 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:21:43,259 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809258219] [2019-10-15 03:21:43,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:43,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:43,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:43,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:43,264 INFO L87 Difference]: Start difference. First operand 749 states and 893 transitions. Second operand 3 states. [2019-10-15 03:21:43,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:43,333 INFO L93 Difference]: Finished difference Result 1195 states and 1429 transitions. [2019-10-15 03:21:43,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:43,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2019-10-15 03:21:43,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:43,339 INFO L225 Difference]: With dead ends: 1195 [2019-10-15 03:21:43,339 INFO L226 Difference]: Without dead ends: 468 [2019-10-15 03:21:43,342 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 [2019-10-15 03:21:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-15 03:21:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 453. [2019-10-15 03:21:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-10-15 03:21:43,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 528 transitions. [2019-10-15 03:21:43,381 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 528 transitions. Word has length 101 [2019-10-15 03:21:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:43,381 INFO L462 AbstractCegarLoop]: Abstraction has 453 states and 528 transitions. [2019-10-15 03:21:43,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 528 transitions. [2019-10-15 03:21:43,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-15 03:21:43,387 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:43,387 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:43,388 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:43,388 INFO L82 PathProgramCache]: Analyzing trace with hash 926868855, now seen corresponding path program 1 times [2019-10-15 03:21:43,388 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:43,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836700621] [2019-10-15 03:21:43,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,389 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:21:43,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836700621] [2019-10-15 03:21:43,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:43,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:21:43,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065339495] [2019-10-15 03:21:43,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:21:43,676 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:43,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:21:43,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:21:43,677 INFO L87 Difference]: Start difference. First operand 453 states and 528 transitions. Second operand 14 states. [2019-10-15 03:21:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:44,130 INFO L93 Difference]: Finished difference Result 858 states and 1032 transitions. [2019-10-15 03:21:44,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 03:21:44,131 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2019-10-15 03:21:44,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:44,138 INFO L225 Difference]: With dead ends: 858 [2019-10-15 03:21:44,138 INFO L226 Difference]: Without dead ends: 676 [2019-10-15 03:21:44,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-15 03:21:44,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2019-10-15 03:21:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 563. [2019-10-15 03:21:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2019-10-15 03:21:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 661 transitions. [2019-10-15 03:21:44,186 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 661 transitions. Word has length 103 [2019-10-15 03:21:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:44,187 INFO L462 AbstractCegarLoop]: Abstraction has 563 states and 661 transitions. [2019-10-15 03:21:44,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:21:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 661 transitions. [2019-10-15 03:21:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-15 03:21:44,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:44,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:44,193 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:44,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:44,194 INFO L82 PathProgramCache]: Analyzing trace with hash -244140947, now seen corresponding path program 1 times [2019-10-15 03:21:44,194 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:44,195 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947626674] [2019-10-15 03:21:44,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:21:44,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947626674] [2019-10-15 03:21:44,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940792793] [2019-10-15 03:21:44,498 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 [2019-10-15 03:21:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:44,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 49 conjunts are in the unsatisfiable core [2019-10-15 03:21:44,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:44,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:45,018 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:45,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:21:45,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1199078006] [2019-10-15 03:21:45,862 INFO L162 IcfgInterpreter]: Started Sifa with 93 locations of interest [2019-10-15 03:21:45,863 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:21:45,870 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:21:45,878 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:21:45,878 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:21:53,513 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-15 03:21:55,147 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:21:55,274 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:21:55,436 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:21:55,630 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:21:55,974 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:56,187 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:56,377 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:56,635 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:57,083 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-15 03:21:57,337 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:57,516 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:57,641 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:57,752 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:57,959 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:21:57,969 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-15 03:21:58,191 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-15 03:21:58,293 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:21:58,400 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:21:58,559 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:21:58,690 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:21:58,793 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:21:58,925 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:21:59,081 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:21:59,301 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:21:59,520 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-15 03:21:59,649 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:21:59,778 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:21:59,987 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:00,105 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:00,207 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:00,341 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:00,467 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:00,580 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:00,798 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:01,012 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:01,129 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:01,499 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:01,715 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:01,848 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:02,052 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:02,170 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:02,496 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:02,700 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:02,817 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,005 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,139 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,287 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,429 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,561 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,692 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,801 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:03,910 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:04,026 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:04,150 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:04,258 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:04,390 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:04,607 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:04,717 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:04,843 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:04,951 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:05,060 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:05,182 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:05,315 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:05,430 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:05,575 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:05,688 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:05,803 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:05,935 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:06,068 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:06,180 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:06,306 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:06,512 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-15 03:22:06,625 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:06,765 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:06,877 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:06,990 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:07,111 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:07,275 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,384 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,510 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,622 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,730 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,849 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,956 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,064 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,180 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,416 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:08,537 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:08,662 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:08,795 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:08,906 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:09,035 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:09,247 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:09,375 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:09,506 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:09,624 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:09,740 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:09,863 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:10,068 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-15 03:22:10,181 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:10,316 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:10,438 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,546 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,668 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,778 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,889 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,020 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,127 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,235 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,352 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,488 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,596 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,719 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,830 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:11,940 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:12,061 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:12,171 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:12,281 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:12,398 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:12,632 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:12,743 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:12,869 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:13,069 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:13,178 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:13,302 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:13,504 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:13,626 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:13,748 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:13,868 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:13,982 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:14,113 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:14,320 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-15 03:22:14,435 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:14,563 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:14,687 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:14,798 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:14,918 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,030 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,141 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,266 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,452 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,564 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,688 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,809 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,928 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,053 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,166 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,279 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,404 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,618 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:16,729 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 558