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 0.1.24-36ac518-m [2019-10-07 15:19:18,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:19:18,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:19:18,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:19:18,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:19:18,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:19:18,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:19:18,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:19:18,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:19:18,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:19:18,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:19:18,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:19:18,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:19:18,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:19:18,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:19:18,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:19:18,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:19:18,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:19:18,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:19:18,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:19:18,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:19:18,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:19:18,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:19:18,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:19:18,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:19:18,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:19:18,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:19:18,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:19:18,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:19:18,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:19:18,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:19:18,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:19:18,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:19:18,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:19:18,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:19:18,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:19:18,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:19:18,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:19:18,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:19:18,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:19:18,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:19:18,906 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 [2019-10-07 15:19:18,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:19:18,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:19:18,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:19:18,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:19:18,922 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:19:18,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:19:18,923 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:19:18,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:19:18,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:19:18,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:19:18,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:19:18,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:19:18,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:19:18,924 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:19:18,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:19:18,924 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:19:18,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:19:18,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:19:18,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:19:18,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:19:18,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:19:18,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:19:18,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:19:18,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:19:18,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:19:18,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:19:18,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:19:18,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:19:18,927 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 [2019-10-07 15:19:19,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:19:19,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:19:19,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:19:19,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:19:19,240 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:19:19,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-10-07 15:19:19,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b852b3ec8/e3da93ab031441d8a1a7d09d620c0e75/FLAGbd64a00b2 [2019-10-07 15:19:19,891 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:19:19,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2019-10-07 15:19:19,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b852b3ec8/e3da93ab031441d8a1a7d09d620c0e75/FLAGbd64a00b2 [2019-10-07 15:19:20,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b852b3ec8/e3da93ab031441d8a1a7d09d620c0e75 [2019-10-07 15:19:20,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:19:20,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:19:20,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:19:20,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:19:20,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:19:20,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac730e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20, skipping insertion in model container [2019-10-07 15:19:20,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,145 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:19:20,204 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:19:20,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:19:20,674 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:19:20,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:19:20,806 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:19:20,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20 WrapperNode [2019-10-07 15:19:20,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:19:20,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:19:20,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:19:20,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:19:20,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (1/1) ... [2019-10-07 15:19:20,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:19:20,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:19:20,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:19:20,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:19:20,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (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 [2019-10-07 15:19:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:19:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:19:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:19:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:19:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:19:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:19:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:19:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:19:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:19:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:19:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:19:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:19:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:19:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:19:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:19:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:19:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:19:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:19:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:19:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:19:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:19:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:19:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-07 15:19:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:19:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:19:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:19:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:19:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:19:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:19:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:19:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:19:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:19:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:19:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:19:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:19:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:19:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:19:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:19:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:19:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:19:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:19:20,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-07 15:19:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:19:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:19:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:19:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:19:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:19:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:19:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:19:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:19:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:19:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:19:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:19:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:19:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:19:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:19:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:19:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:19:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:19:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-07 15:19:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:19:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-07 15:19:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:19:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:19:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:19:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:19:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:19:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:19:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:19:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:19:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:19:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:19:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:19:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:19:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:19:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:19:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:19:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:19:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:19:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:19:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:19:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:19:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:19:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:19:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:19:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:19:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:19:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:19:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:19:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:19:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:19:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:19:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:19:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:19:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:19:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:19:21,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:19:21,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:19:22,577 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:19:22,577 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:19:22,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:19:22 BoogieIcfgContainer [2019-10-07 15:19:22,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:19:22,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:19:22,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:19:22,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:19:22,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:19:20" (1/3) ... [2019-10-07 15:19:22,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60603b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:19:22, skipping insertion in model container [2019-10-07 15:19:22,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:20" (2/3) ... [2019-10-07 15:19:22,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60603b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:19:22, skipping insertion in model container [2019-10-07 15:19:22,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:19:22" (3/3) ... [2019-10-07 15:19:22,588 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2019-10-07 15:19:22,600 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:19:22,610 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:19:22,622 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:19:22,650 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:19:22,650 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:19:22,651 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:19:22,651 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:19:22,651 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:19:22,651 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:19:22,652 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:19:22,652 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:19:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-07 15:19:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 15:19:22,685 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:22,687 INFO L385 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] [2019-10-07 15:19:22,689 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:22,695 INFO L82 PathProgramCache]: Analyzing trace with hash 588811842, now seen corresponding path program 1 times [2019-10-07 15:19:22,704 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:22,705 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:22,705 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:22,705 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:22,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:23,072 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:23,073 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:23,075 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:19:23,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:19:23,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:19:23,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:19:23,097 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-07 15:19:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:23,138 INFO L93 Difference]: Finished difference Result 231 states and 280 transitions. [2019-10-07 15:19:23,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:19:23,140 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-07 15:19:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:23,156 INFO L225 Difference]: With dead ends: 231 [2019-10-07 15:19:23,156 INFO L226 Difference]: Without dead ends: 116 [2019-10-07 15:19:23,163 INFO L606 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 [2019-10-07 15:19:23,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-07 15:19:23,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-07 15:19:23,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-07 15:19:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-10-07 15:19:23,230 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 42 [2019-10-07 15:19:23,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:23,231 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-10-07 15:19:23,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:19:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-10-07 15:19:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-07 15:19:23,235 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:23,235 INFO L385 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] [2019-10-07 15:19:23,235 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:23,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2031994381, now seen corresponding path program 1 times [2019-10-07 15:19:23,236 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:23,237 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:23,237 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:23,237 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:23,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:23,367 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:23,367 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:23,368 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:19:23,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:19:23,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:19:23,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:19:23,371 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-10-07 15:19:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:23,425 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2019-10-07 15:19:23,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:19:23,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-07 15:19:23,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:23,433 INFO L225 Difference]: With dead ends: 179 [2019-10-07 15:19:23,434 INFO L226 Difference]: Without dead ends: 108 [2019-10-07 15:19:23,437 INFO L606 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 [2019-10-07 15:19:23,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-07 15:19:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-07 15:19:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-07 15:19:23,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2019-10-07 15:19:23,467 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 43 [2019-10-07 15:19:23,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:23,469 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2019-10-07 15:19:23,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:19:23,469 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2019-10-07 15:19:23,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 15:19:23,473 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:23,475 INFO L385 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] [2019-10-07 15:19:23,475 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:23,476 INFO L82 PathProgramCache]: Analyzing trace with hash -418862698, now seen corresponding path program 1 times [2019-10-07 15:19:23,476 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:23,476 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:23,476 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:23,477 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:23,682 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:23,688 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:23,689 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:19:23,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:19:23,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:19:23,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:19:23,690 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2019-10-07 15:19:24,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:24,194 INFO L93 Difference]: Finished difference Result 325 states and 385 transitions. [2019-10-07 15:19:24,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:19:24,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-07 15:19:24,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:24,201 INFO L225 Difference]: With dead ends: 325 [2019-10-07 15:19:24,201 INFO L226 Difference]: Without dead ends: 239 [2019-10-07 15:19:24,205 INFO L606 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 [2019-10-07 15:19:24,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-10-07 15:19:24,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 227. [2019-10-07 15:19:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-07 15:19:24,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 268 transitions. [2019-10-07 15:19:24,271 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 268 transitions. Word has length 47 [2019-10-07 15:19:24,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:24,272 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 268 transitions. [2019-10-07 15:19:24,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:19:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 268 transitions. [2019-10-07 15:19:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-07 15:19:24,274 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:24,274 INFO L385 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] [2019-10-07 15:19:24,275 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:24,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:24,275 INFO L82 PathProgramCache]: Analyzing trace with hash -450314022, now seen corresponding path program 1 times [2019-10-07 15:19:24,275 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:24,275 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:24,276 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:24,276 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:24,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:24,429 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:24,430 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:24,430 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:19:24,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:19:24,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:19:24,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:19:24,431 INFO L87 Difference]: Start difference. First operand 227 states and 268 transitions. Second operand 10 states. [2019-10-07 15:19:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:25,099 INFO L93 Difference]: Finished difference Result 803 states and 994 transitions. [2019-10-07 15:19:25,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:19:25,099 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-07 15:19:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:25,106 INFO L225 Difference]: With dead ends: 803 [2019-10-07 15:19:25,106 INFO L226 Difference]: Without dead ends: 598 [2019-10-07 15:19:25,109 INFO L606 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 [2019-10-07 15:19:25,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2019-10-07 15:19:25,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 574. [2019-10-07 15:19:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-07 15:19:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 695 transitions. [2019-10-07 15:19:25,177 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 695 transitions. Word has length 51 [2019-10-07 15:19:25,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:25,178 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 695 transitions. [2019-10-07 15:19:25,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:19:25,178 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 695 transitions. [2019-10-07 15:19:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-07 15:19:25,182 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:25,182 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:25,183 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:25,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:25,183 INFO L82 PathProgramCache]: Analyzing trace with hash 431309406, now seen corresponding path program 1 times [2019-10-07 15:19:25,183 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:25,184 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:25,184 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:25,184 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:25,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:25,260 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:25,260 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:25,261 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 15:19:25,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 15:19:25,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 15:19:25,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 15:19:25,262 INFO L87 Difference]: Start difference. First operand 574 states and 695 transitions. Second operand 4 states. [2019-10-07 15:19:25,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:25,590 INFO L93 Difference]: Finished difference Result 1434 states and 1905 transitions. [2019-10-07 15:19:25,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 15:19:25,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-10-07 15:19:25,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:25,602 INFO L225 Difference]: With dead ends: 1434 [2019-10-07 15:19:25,602 INFO L226 Difference]: Without dead ends: 882 [2019-10-07 15:19:25,607 INFO L606 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 [2019-10-07 15:19:25,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2019-10-07 15:19:25,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 749. [2019-10-07 15:19:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-07 15:19:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 896 transitions. [2019-10-07 15:19:25,729 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 896 transitions. Word has length 57 [2019-10-07 15:19:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:25,729 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 896 transitions. [2019-10-07 15:19:25,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 15:19:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 896 transitions. [2019-10-07 15:19:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-07 15:19:25,738 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:25,739 INFO L385 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] [2019-10-07 15:19:25,739 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash -980024447, now seen corresponding path program 1 times [2019-10-07 15:19:25,742 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:25,742 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:25,742 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:25,742 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:25,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:19:25,854 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:25,854 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:19:25,855 INFO L95 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 [2019-10-07 15:19:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:26,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 15:19:26,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:19:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 15:19:26,096 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:19:26,216 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 15:19:26,217 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 15:19:26,217 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-07 15:19:26,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:19:26,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:19:26,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:19:26,218 INFO L87 Difference]: Start difference. First operand 749 states and 896 transitions. Second operand 7 states. [2019-10-07 15:19:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:26,454 INFO L93 Difference]: Finished difference Result 762 states and 912 transitions. [2019-10-07 15:19:26,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:19:26,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-07 15:19:26,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:26,465 INFO L225 Difference]: With dead ends: 762 [2019-10-07 15:19:26,465 INFO L226 Difference]: Without dead ends: 759 [2019-10-07 15:19:26,466 INFO L606 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 [2019-10-07 15:19:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-10-07 15:19:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 749. [2019-10-07 15:19:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-07 15:19:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 893 transitions. [2019-10-07 15:19:26,532 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 893 transitions. Word has length 79 [2019-10-07 15:19:26,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:26,534 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 893 transitions. [2019-10-07 15:19:26,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:19:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 893 transitions. [2019-10-07 15:19:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-07 15:19:26,540 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:26,541 INFO L385 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] [2019-10-07 15:19:26,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:26,747 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:26,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:26,747 INFO L82 PathProgramCache]: Analyzing trace with hash 946442780, now seen corresponding path program 1 times [2019-10-07 15:19:26,748 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:26,748 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:26,749 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:26,749 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 15:19:26,848 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:26,849 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:26,849 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:19:26,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:19:26,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:19:26,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:19:26,850 INFO L87 Difference]: Start difference. First operand 749 states and 893 transitions. Second operand 3 states. [2019-10-07 15:19:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:26,917 INFO L93 Difference]: Finished difference Result 1195 states and 1429 transitions. [2019-10-07 15:19:26,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:19:26,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2019-10-07 15:19:26,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:26,922 INFO L225 Difference]: With dead ends: 1195 [2019-10-07 15:19:26,922 INFO L226 Difference]: Without dead ends: 468 [2019-10-07 15:19:26,925 INFO L606 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 [2019-10-07 15:19:26,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-07 15:19:26,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 453. [2019-10-07 15:19:26,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-10-07 15:19:26,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 528 transitions. [2019-10-07 15:19:26,952 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 528 transitions. Word has length 101 [2019-10-07 15:19:26,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:26,953 INFO L462 AbstractCegarLoop]: Abstraction has 453 states and 528 transitions. [2019-10-07 15:19:26,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:19:26,953 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 528 transitions. [2019-10-07 15:19:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-07 15:19:26,956 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:26,956 INFO L385 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] [2019-10-07 15:19:26,956 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:26,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:26,957 INFO L82 PathProgramCache]: Analyzing trace with hash 926868855, now seen corresponding path program 1 times [2019-10-07 15:19:26,957 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:26,957 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:26,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:26,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:19:27,227 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:27,227 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:27,227 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:19:27,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:19:27,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:19:27,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:19:27,229 INFO L87 Difference]: Start difference. First operand 453 states and 528 transitions. Second operand 14 states. [2019-10-07 15:19:27,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:27,654 INFO L93 Difference]: Finished difference Result 858 states and 1032 transitions. [2019-10-07 15:19:27,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:19:27,655 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2019-10-07 15:19:27,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:27,660 INFO L225 Difference]: With dead ends: 858 [2019-10-07 15:19:27,660 INFO L226 Difference]: Without dead ends: 676 [2019-10-07 15:19:27,661 INFO L606 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 [2019-10-07 15:19:27,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2019-10-07 15:19:27,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 563. [2019-10-07 15:19:27,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2019-10-07 15:19:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 661 transitions. [2019-10-07 15:19:27,726 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 661 transitions. Word has length 103 [2019-10-07 15:19:27,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:27,726 INFO L462 AbstractCegarLoop]: Abstraction has 563 states and 661 transitions. [2019-10-07 15:19:27,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:19:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 661 transitions. [2019-10-07 15:19:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 15:19:27,730 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:27,731 INFO L385 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] [2019-10-07 15:19:27,731 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:27,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:27,732 INFO L82 PathProgramCache]: Analyzing trace with hash -244140947, now seen corresponding path program 1 times [2019-10-07 15:19:27,732 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:27,732 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:27,732 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:27,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:27,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:19:28,028 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:28,028 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:19:28,029 INFO L95 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 [2019-10-07 15:19:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:28,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 49 conjunts are in the unsatisfiable core [2019-10-07 15:19:28,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:19:28,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:28,455 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:19:28,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:28,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:28,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:29,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:29,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:29,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:29,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:29,305 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-07 15:19:29,305 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:19:29,336 INFO L162 IcfgInterpreter]: Started Sifa with 93 locations of interest [2019-10-07 15:19:29,337 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:19:29,344 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:19:29,353 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:19:29,353 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:19:37,166 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 15:19:38,920 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:19:39,101 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:19:39,232 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:19:39,362 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:19:39,588 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:39,849 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:40,031 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:40,226 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:40,607 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-07 15:19:40,772 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:40,907 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:41,059 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:41,165 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:41,297 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:41,305 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-07 15:19:41,508 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-07 15:19:41,655 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:41,767 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:41,894 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:42,134 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:42,261 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:42,382 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:42,597 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:42,898 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-07 15:19:43,009 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:43,129 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:43,237 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:43,484 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:43,802 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:43,918 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:44,163 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:44,466 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:44,781 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:45,093 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:45,394 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:45,505 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:45,626 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:45,744 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:45,946 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:19:46,119 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:46,249 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:46,353 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:46,508 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:46,620 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:46,726 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:46,847 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:46,955 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:47,059 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:47,176 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:47,306 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:19:47,442 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:19:47,565 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:47,784 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:19:47,890 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:19:48,010 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:48,117 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:19:48,222 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:19:48,355 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:48,465 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:48,574 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:48,697 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:48,807 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:48,917 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:49,037 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:49,167 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:49,301 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:49,422 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:49,630 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:19:49,739 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:49,865 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:49,977 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:50,088 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:50,214 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:50,341 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:50,446 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:50,570 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:50,679 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:50,786 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:50,957 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:51,062 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:51,168 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:51,282 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:51,535 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:19:51,644 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:51,767 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:51,888 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:52,012 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:52,147 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:52,344 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:19:52,451 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:52,589 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:52,702 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:52,811 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:52,932 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:53,132 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:19:53,243 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:53,370 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:53,611 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:53,752 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:53,871 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:53,979 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:54,085 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:54,208 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:54,314 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:54,420 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:54,535 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:54,770 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,038 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,270 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,384 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,490 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,609 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,713 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,819 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:55,935 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:56,153 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:19:56,261 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:56,395 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:56,595 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:19:56,702 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:19:56,824 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:57,013 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:19:57,120 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:19:57,236 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:19:57,350 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:57,464 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:57,587 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:19:57,788 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:19:57,903 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:58,026 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:19:58,143 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:58,252 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:58,371 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:58,480 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:58,587 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:58,719 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:58,886 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:58,993 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,110 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,221 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,327 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,445 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,551 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,657 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,775 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:19:59,988 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:20:00,096 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:00,217 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:00,432 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:20:00,541 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:00,661 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:00,781 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:00,889 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,009 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,122 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,229 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,352 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,459 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,569 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,687 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:01,897 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:20:02,008 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:02,127 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:02,340 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:20:02,448 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:02,570 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:02,680 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:02,787 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:02,905 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:03,017 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:20:03,129 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:20:03,255 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:20:03,373 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:03,487 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:03,606 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:03,716 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:03,824 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:03,941 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:04,048 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:04,154 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:04,269 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:04,474 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-07 15:20:04,585 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:04,708 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:04,904 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:20:05,012 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:05,140 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:05,323 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-07 15:20:05,432 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:05,556 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:05,753 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 565 [2019-10-07 15:20:05,871 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:20:06,003 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:20:06,207 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:20:06,319 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:20:06,443 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:20:06,659 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:20:06,772 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:20:06,894 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:20:07,099 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-07 15:20:07,211 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:20:07,336 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:20:07,339 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 544 for LOIs [2019-10-07 15:20:07,646 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:07,652 INFO L199 IcfgInterpreter]: Interpreting procedure setup with input of size 540 for LOIs [2019-10-07 15:20:08,249 INFO L199 IcfgInterpreter]: Interpreting procedure select_features with input of size 540 for LOIs [2019-10-07 15:20:08,351 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:20:08,852 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 544 for LOIs [2019-10-07 15:20:09,159 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:09,496 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:09,606 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:20:09,824 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 15:20:09,927 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 553 [2019-10-07 15:20:10,150 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:20:10,260 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 555 [2019-10-07 15:20:10,363 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 555 [2019-10-07 15:20:10,484 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:20:10,621 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:10,899 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:11,212 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 573 [2019-10-07 15:20:11,411 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 559 [2019-10-07 15:20:11,722 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:12,042 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:12,157 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:12,426 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:12,732 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:12,840 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:13,115 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:13,450 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:13,556 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:13,823 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:14,121 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:14,225 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:14,497 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:14,797 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:14,901 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:15,172 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:15,471 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:15,578 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:15,854 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:16,158 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:16,261 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:16,531 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:16,828 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:16,931 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:17,201 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:17,497 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:17,601 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:17,883 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:18,182 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:18,286 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:18,561 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:18,858 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:18,966 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:19,236 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:19,532 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:19,637 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:19,910 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:20:20,210 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 572 [2019-10-07 15:20:20,572 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:21,006 WARN L191 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:21,424 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:21,830 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:22,239 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:22,659 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:23,064 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:23,476 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:23,885 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:24,295 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:24,707 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:25,124 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:25,537 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:20:25,831 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:20:25,833 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:20:25,845 INFO L168 Benchmark]: Toolchain (without parser) took 65717.59 ms. Allocated memory was 138.4 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 101.0 MB in the beginning and 686.1 MB in the end (delta: -585.1 MB). Peak memory consumption was 499.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:25,846 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:20:25,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.01 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 169.7 MB in the end (delta: -68.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:25,847 INFO L168 Benchmark]: Boogie Preprocessor took 113.46 ms. Allocated memory is still 202.4 MB. Free memory was 169.7 MB in the beginning and 165.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:25,847 INFO L168 Benchmark]: RCFGBuilder took 1658.29 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.6 MB in the beginning and 146.9 MB in the end (delta: 18.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:25,847 INFO L168 Benchmark]: TraceAbstraction took 63264.12 ms. Allocated memory was 235.4 MB in the beginning and 1.2 GB in the end (delta: 987.8 MB). Free memory was 146.9 MB in the beginning and 686.1 MB in the end (delta: -539.1 MB). Peak memory consumption was 448.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:25,849 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.01 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 169.7 MB in the end (delta: -68.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.46 ms. Allocated memory is still 202.4 MB. Free memory was 169.7 MB in the beginning and 165.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1658.29 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.6 MB in the beginning and 146.9 MB in the end (delta: 18.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 63264.12 ms. Allocated memory was 235.4 MB in the beginning and 1.2 GB in the end (delta: 987.8 MB). Free memory was 146.9 MB in the beginning and 686.1 MB in the end (delta: -539.1 MB). Peak memory consumption was 448.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...