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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:17:01,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:17:01,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:17:01,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:17:01,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:17:01,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:17:01,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:17:01,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:17:01,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:17:01,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:17:01,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:17:01,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:17:01,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:17:01,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:17:01,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:17:01,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:17:01,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:17:01,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:17:01,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:17:01,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:17:01,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:17:01,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:17:01,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:17:01,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:17:01,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:17:01,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:17:01,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:17:01,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:17:01,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:17:01,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:17:01,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:17:01,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:17:01,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:17:01,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:17:01,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:17:01,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:17:01,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:17:01,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:17:01,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:17:01,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:17:01,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:17:01,814 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 23:17:01,844 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:17:01,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:17:01,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:17:01,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:17:01,847 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:17:01,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:17:01,847 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:17:01,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:17:01,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:17:01,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:17:01,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:17:01,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:17:01,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:17:01,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:17:01,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:17:01,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:17:01,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:17:01,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:17:01,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:17:01,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:17:01,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:17:01,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:17:01,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:17:01,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:17:01,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:17:01,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:17:01,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:17:01,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:17:01,852 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 23:17:02,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:17:02,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:17:02,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:17:02,180 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:17:02,180 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:17:02,181 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-10-13 23:17:02,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b89a4ae41/f84008dba40a47988b951efd701d3d81/FLAG8417d105a [2019-10-13 23:17:02,759 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:17:02,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-10-13 23:17:02,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b89a4ae41/f84008dba40a47988b951efd701d3d81/FLAG8417d105a [2019-10-13 23:17:03,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b89a4ae41/f84008dba40a47988b951efd701d3d81 [2019-10-13 23:17:03,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:17:03,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:17:03,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:03,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:17:03,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:17:03,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a33f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03, skipping insertion in model container [2019-10-13 23:17:03,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,092 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:17:03,150 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:17:03,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:03,574 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:17:03,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:03,713 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:17:03,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03 WrapperNode [2019-10-13 23:17:03,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:03,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:17:03,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:17:03,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:17:03,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (1/1) ... [2019-10-13 23:17:03,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:17:03,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:17:03,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:17:03,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:17:03,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (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 23:17:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:17:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:17:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:17:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:17:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:17:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:17:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:17:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:17:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:17:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:17:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:17:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:17:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:17:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:17:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:17:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:17:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:17:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:17:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:17:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:17:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:17:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:17:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:17:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:17:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:17:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:17:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:17:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:17:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:17:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:17:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:17:03,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:17:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:17:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:17:03,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:17:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:17:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:17:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:17:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:17:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:17:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:17:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:17:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:17:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:17:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:17:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:17:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:17:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:17:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:17:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:17:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:17:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:17:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:17:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:17:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:17:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:17:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:17:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:17:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:17:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:17:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:17:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:17:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:17:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:17:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:17:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:17:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:17:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:17:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:17:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:17:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:17:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:17:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:17:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:17:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:17:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:17:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:17:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:17:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:17:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:17:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:17:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:17:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:17:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:17:05,506 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:17:05,508 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:17:05,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:05 BoogieIcfgContainer [2019-10-13 23:17:05,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:17:05,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:17:05,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:17:05,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:17:05,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:17:03" (1/3) ... [2019-10-13 23:17:05,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74031342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:05, skipping insertion in model container [2019-10-13 23:17:05,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:03" (2/3) ... [2019-10-13 23:17:05,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74031342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:05, skipping insertion in model container [2019-10-13 23:17:05,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:05" (3/3) ... [2019-10-13 23:17:05,521 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2019-10-13 23:17:05,530 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:17:05,539 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:17:05,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:05,589 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:05,589 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:05,589 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:05,590 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:05,590 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:05,590 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:05,591 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:05,591 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2019-10-13 23:17:05,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:05,634 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:05,635 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:05,637 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1800009591, now seen corresponding path program 1 times [2019-10-13 23:17:05,654 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989929125] [2019-10-13 23:17:05,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,053 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 23:17:06,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989929125] [2019-10-13 23:17:06,055 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:06,056 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:06,056 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990686976] [2019-10-13 23:17:06,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:06,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:06,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:06,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:06,076 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 2 states. [2019-10-13 23:17:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:06,122 INFO L93 Difference]: Finished difference Result 251 states and 302 transitions. [2019-10-13 23:17:06,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:06,124 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:06,137 INFO L225 Difference]: With dead ends: 251 [2019-10-13 23:17:06,137 INFO L226 Difference]: Without dead ends: 126 [2019-10-13 23:17:06,142 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:06,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-13 23:17:06,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-13 23:17:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-13 23:17:06,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2019-10-13 23:17:06,199 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 42 [2019-10-13 23:17:06,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:06,199 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2019-10-13 23:17:06,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:06,200 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2019-10-13 23:17:06,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:06,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:06,207 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:06,207 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:06,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:06,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1243027552, now seen corresponding path program 1 times [2019-10-13 23:17:06,208 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:06,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430383507] [2019-10-13 23:17:06,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,318 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 23:17:06,318 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430383507] [2019-10-13 23:17:06,319 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:06,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:06,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269402331] [2019-10-13 23:17:06,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:06,321 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:06,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:06,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:06,322 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand 3 states. [2019-10-13 23:17:06,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:06,349 INFO L93 Difference]: Finished difference Result 202 states and 230 transitions. [2019-10-13 23:17:06,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:06,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:06,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:06,354 INFO L225 Difference]: With dead ends: 202 [2019-10-13 23:17:06,354 INFO L226 Difference]: Without dead ends: 118 [2019-10-13 23:17:06,357 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 23:17:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-13 23:17:06,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-13 23:17:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-13 23:17:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2019-10-13 23:17:06,388 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 43 [2019-10-13 23:17:06,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:06,389 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2019-10-13 23:17:06,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2019-10-13 23:17:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:17:06,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:06,397 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] [2019-10-13 23:17:06,397 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:06,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:06,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1468436695, now seen corresponding path program 1 times [2019-10-13 23:17:06,400 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:06,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175050108] [2019-10-13 23:17:06,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,610 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 23:17:06,610 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175050108] [2019-10-13 23:17:06,610 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:06,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:06,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504044760] [2019-10-13 23:17:06,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:06,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:06,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:06,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:06,613 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 7 states. [2019-10-13 23:17:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:07,106 INFO L93 Difference]: Finished difference Result 354 states and 415 transitions. [2019-10-13 23:17:07,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:07,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-13 23:17:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:07,111 INFO L225 Difference]: With dead ends: 354 [2019-10-13 23:17:07,111 INFO L226 Difference]: Without dead ends: 258 [2019-10-13 23:17:07,113 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 23:17:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-10-13 23:17:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 250. [2019-10-13 23:17:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-10-13 23:17:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 293 transitions. [2019-10-13 23:17:07,143 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 293 transitions. Word has length 46 [2019-10-13 23:17:07,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:07,144 INFO L462 AbstractCegarLoop]: Abstraction has 250 states and 293 transitions. [2019-10-13 23:17:07,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 293 transitions. [2019-10-13 23:17:07,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:17:07,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:07,146 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 23:17:07,146 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:07,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1599024539, now seen corresponding path program 1 times [2019-10-13 23:17:07,147 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:07,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141207597] [2019-10-13 23:17:07,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:07,306 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 23:17:07,306 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141207597] [2019-10-13 23:17:07,307 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:07,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:07,307 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117658229] [2019-10-13 23:17:07,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:07,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:07,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:07,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:07,310 INFO L87 Difference]: Start difference. First operand 250 states and 293 transitions. Second operand 10 states. [2019-10-13 23:17:07,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:07,958 INFO L93 Difference]: Finished difference Result 895 states and 1094 transitions. [2019-10-13 23:17:07,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:07,959 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-13 23:17:07,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:07,969 INFO L225 Difference]: With dead ends: 895 [2019-10-13 23:17:07,969 INFO L226 Difference]: Without dead ends: 667 [2019-10-13 23:17:07,972 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 23:17:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-10-13 23:17:08,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 643. [2019-10-13 23:17:08,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-10-13 23:17:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 770 transitions. [2019-10-13 23:17:08,079 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 770 transitions. Word has length 51 [2019-10-13 23:17:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:08,079 INFO L462 AbstractCegarLoop]: Abstraction has 643 states and 770 transitions. [2019-10-13 23:17:08,080 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:08,080 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 770 transitions. [2019-10-13 23:17:08,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 23:17:08,084 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:08,084 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] [2019-10-13 23:17:08,085 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:08,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:08,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1625368362, now seen corresponding path program 1 times [2019-10-13 23:17:08,085 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:08,085 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753672001] [2019-10-13 23:17:08,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,183 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 23:17:08,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753672001] [2019-10-13 23:17:08,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:08,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:17:08,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752188664] [2019-10-13 23:17:08,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:17:08,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:08,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:17:08,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:08,187 INFO L87 Difference]: Start difference. First operand 643 states and 770 transitions. Second operand 4 states. [2019-10-13 23:17:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:08,539 INFO L93 Difference]: Finished difference Result 1572 states and 2052 transitions. [2019-10-13 23:17:08,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:17:08,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-13 23:17:08,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:08,549 INFO L225 Difference]: With dead ends: 1572 [2019-10-13 23:17:08,549 INFO L226 Difference]: Without dead ends: 951 [2019-10-13 23:17:08,551 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 23:17:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2019-10-13 23:17:08,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 821. [2019-10-13 23:17:08,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-10-13 23:17:08,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 974 transitions. [2019-10-13 23:17:08,609 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 974 transitions. Word has length 54 [2019-10-13 23:17:08,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:08,609 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 974 transitions. [2019-10-13 23:17:08,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:17:08,609 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 974 transitions. [2019-10-13 23:17:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 23:17:08,611 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:08,612 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] [2019-10-13 23:17:08,612 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash -135213916, now seen corresponding path program 1 times [2019-10-13 23:17:08,613 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:08,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108664254] [2019-10-13 23:17:08,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,720 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:08,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108664254] [2019-10-13 23:17:08,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499916426] [2019-10-13 23:17:08,721 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 23:17:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:08,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:17:08,987 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:09,112 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:09,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:09,112 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008110738] [2019-10-13 23:17:09,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:09,113 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:09,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:09,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:09,114 INFO L87 Difference]: Start difference. First operand 821 states and 974 transitions. Second operand 7 states. [2019-10-13 23:17:09,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:09,383 INFO L93 Difference]: Finished difference Result 834 states and 990 transitions. [2019-10-13 23:17:09,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:09,383 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-13 23:17:09,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:09,388 INFO L225 Difference]: With dead ends: 834 [2019-10-13 23:17:09,388 INFO L226 Difference]: Without dead ends: 831 [2019-10-13 23:17:09,389 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 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 23:17:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-10-13 23:17:09,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 821. [2019-10-13 23:17:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-10-13 23:17:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 971 transitions. [2019-10-13 23:17:09,438 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 971 transitions. Word has length 78 [2019-10-13 23:17:09,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:09,439 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 971 transitions. [2019-10-13 23:17:09,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:09,439 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 971 transitions. [2019-10-13 23:17:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 23:17:09,443 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:09,443 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:09,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:09,649 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:09,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:09,649 INFO L82 PathProgramCache]: Analyzing trace with hash 923821201, now seen corresponding path program 1 times [2019-10-13 23:17:09,650 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:09,650 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310376484] [2019-10-13 23:17:09,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:09,718 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 23:17:09,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310376484] [2019-10-13 23:17:09,719 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:09,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:09,719 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754722700] [2019-10-13 23:17:09,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:09,720 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:09,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:09,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:09,720 INFO L87 Difference]: Start difference. First operand 821 states and 971 transitions. Second operand 3 states. [2019-10-13 23:17:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:09,784 INFO L93 Difference]: Finished difference Result 947 states and 1124 transitions. [2019-10-13 23:17:09,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:09,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-10-13 23:17:09,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:09,788 INFO L225 Difference]: With dead ends: 947 [2019-10-13 23:17:09,789 INFO L226 Difference]: Without dead ends: 363 [2019-10-13 23:17:09,791 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 23:17:09,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-13 23:17:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-13 23:17:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-13 23:17:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2019-10-13 23:17:09,812 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 113 [2019-10-13 23:17:09,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:09,813 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2019-10-13 23:17:09,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:09,814 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2019-10-13 23:17:09,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 23:17:09,821 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:09,821 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, 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] [2019-10-13 23:17:09,822 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:09,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:09,822 INFO L82 PathProgramCache]: Analyzing trace with hash -396617406, now seen corresponding path program 1 times [2019-10-13 23:17:09,822 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:09,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299859211] [2019-10-13 23:17:09,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:17:09,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299859211] [2019-10-13 23:17:09,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493428483] [2019-10-13 23:17:09,965 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 23:17:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:10,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:17:10,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:17:10,308 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:10,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:10,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:17:10,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [356718578] [2019-10-13 23:17:10,730 INFO L162 IcfgInterpreter]: Started Sifa with 102 locations of interest [2019-10-13 23:17:10,730 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:10,737 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:10,744 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:10,745 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:18,607 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:20,214 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:20,368 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:20,531 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:20,827 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:21,120 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:21,356 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:21,582 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:21,797 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,152 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:22,339 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,481 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,609 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,740 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,857 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,868 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:23,134 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-13 23:17:23,136 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-13 23:17:23,304 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,445 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,578 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,704 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,814 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:23,981 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,204 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:24,329 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,602 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-13 23:17:24,711 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:24,872 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,984 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,086 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,229 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,332 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,578 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,802 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:25,933 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,053 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:26,278 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,595 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,709 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:26,927 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,031 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:27,248 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,355 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:27,486 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:27,604 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,817 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:17:27,935 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,066 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,175 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,331 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,578 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:28,688 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,833 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,942 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:29,051 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:29,179 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:29,336 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,449 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,575 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,794 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:29,904 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:30,028 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:30,225 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:30,335 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:30,457 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:30,575 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:30,689 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:30,812 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:30,939 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,054 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,205 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,348 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,470 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,597 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,810 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-13 23:17:31,926 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:32,100 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:32,215 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:32,332 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:32,456 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:32,696 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:32,817 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,950 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,163 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:33,283 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,410 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,518 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,626 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,742 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,866 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,977 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:34,099 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:34,325 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:34,436 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:34,566 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:34,762 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:34,871 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:34,991 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:35,117 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:35,229 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:35,355 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:35,485 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:35,599 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:35,735 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:35,948 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:36,057 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,190 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,391 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:36,507 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,632 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,742 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,851 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,968 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,180 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:37,288 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,407 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,613 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:37,731 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,850 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,062 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:38,169 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,290 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,500 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:38,613 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,738 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,848 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,957 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:39,073 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:39,432 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:17:39,543 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:39,667 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:39,862 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:39,972 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:40,105 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:40,302 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:40,411 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:40,530 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:40,655 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:40,768 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:40,892 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:41,008 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:41,122 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:41,249 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:41,457 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:41,565 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,693 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,897 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:42,006 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,125 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,234 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,351 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,472 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,602 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:42,714 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:42,835 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:43,071 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:43,317 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:43,462 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:43,662 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:17:43,779 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:43,899 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:44,016 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:44,129 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:44,252 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:44,368 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 567