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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:17:36,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:17:36,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:17:36,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:17:36,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:17:36,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:17:36,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:17:36,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:17:36,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:17:36,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:17:36,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:17:36,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:17:36,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:17:36,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:17:36,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:17:36,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:17:36,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:17:36,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:17:36,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:17:36,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:17:36,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:17:36,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:17:36,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:17:36,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:17:36,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:17:36,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:17:36,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:17:36,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:17:36,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:17:36,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:17:36,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:17:36,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:17:36,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:17:36,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:17:36,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:17:36,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:17:36,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:17:36,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:17:36,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:17:36,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:17:36,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:17:36,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:17:36,878 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:17:36,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:17:36,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:17:36,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:17:36,881 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:17:36,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:17:36,881 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:17:36,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:17:36,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:17:36,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:17:36,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:17:36,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:17:36,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:17:36,884 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:17:36,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:17:36,884 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:17:36,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:17:36,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:17:36,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:17:36,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:17:36,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:17:36,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:17:36,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:17:36,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:17:36,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:17:36,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:17:36,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:17:36,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:17:36,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:17:37,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:17:37,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:17:37,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:17:37,183 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:17:37,184 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:17:37,185 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product64.cil.c [2019-10-13 23:17:37,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba130a367/f3193c8f2d38494dbb1ca5de75f67ea0/FLAG924373ee1 [2019-10-13 23:17:37,763 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:17:37,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product64.cil.c [2019-10-13 23:17:37,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba130a367/f3193c8f2d38494dbb1ca5de75f67ea0/FLAG924373ee1 [2019-10-13 23:17:38,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba130a367/f3193c8f2d38494dbb1ca5de75f67ea0 [2019-10-13 23:17:38,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:17:38,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:17:38,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:38,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:17:38,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:17:38,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507cfa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38, skipping insertion in model container [2019-10-13 23:17:38,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,117 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:17:38,190 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:17:38,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:38,711 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:17:38,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:38,828 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:17:38,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38 WrapperNode [2019-10-13 23:17:38,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:38,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:17:38,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:17:38,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:17:38,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... [2019-10-13 23:17:38,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:17:38,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:17:38,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:17:38,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:17:38,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:17:39,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:17:39,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:17:39,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:39,020 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:17:39,021 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:17:39,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:17:39,021 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:17:39,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:17:39,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:17:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:17:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:17:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:17:39,022 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:39,023 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:17:39,023 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:17:39,023 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:39,023 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:17:39,023 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:17:39,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:17:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:17:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:17:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:17:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:17:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:17:39,024 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:17:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:17:39,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:17:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:17:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:17:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:17:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:17:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:17:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:17:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:17:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:17:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:17:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:17:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:17:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:17:39,027 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:17:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:17:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:17:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:17:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:17:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:17:39,028 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:17:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:17:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:17:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:17:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:17:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:17:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:17:39,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:17:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:17:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:17:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:17:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:17:39,030 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:17:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:17:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:17:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:17:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:17:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:17:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:17:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:17:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:17:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:17:39,032 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:17:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:17:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:17:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:17:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:17:39,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:17:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:17:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:17:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:17:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:17:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:17:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:17:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:17:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:17:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:17:39,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:17:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:17:39,036 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:17:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:17:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:17:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:17:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:17:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:17:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:17:40,813 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:17:40,813 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:17:40,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:40 BoogieIcfgContainer [2019-10-13 23:17:40,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:17:40,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:17:40,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:17:40,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:17:40,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:17:38" (1/3) ... [2019-10-13 23:17:40,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617ae34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:40, skipping insertion in model container [2019-10-13 23:17:40,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:38" (2/3) ... [2019-10-13 23:17:40,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617ae34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:40, skipping insertion in model container [2019-10-13 23:17:40,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:40" (3/3) ... [2019-10-13 23:17:40,823 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2019-10-13 23:17:40,834 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:17:40,845 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:17:40,860 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:40,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:40,892 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:40,892 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:40,893 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:40,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:40,893 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:40,893 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:40,894 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:40,925 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2019-10-13 23:17:40,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:40,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:40,942 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:40,945 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:40,953 INFO L82 PathProgramCache]: Analyzing trace with hash -958260662, now seen corresponding path program 1 times [2019-10-13 23:17:40,967 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:40,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98320762] [2019-10-13 23:17:40,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:40,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:41,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98320762] [2019-10-13 23:17:41,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:41,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:41,354 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776487903] [2019-10-13 23:17:41,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:41,366 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:41,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:41,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:41,380 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2019-10-13 23:17:41,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:41,430 INFO L93 Difference]: Finished difference Result 277 states and 338 transitions. [2019-10-13 23:17:41,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:41,432 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:41,451 INFO L225 Difference]: With dead ends: 277 [2019-10-13 23:17:41,451 INFO L226 Difference]: Without dead ends: 139 [2019-10-13 23:17:41,459 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-10-13 23:17:41,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-10-13 23:17:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-13 23:17:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2019-10-13 23:17:41,520 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 42 [2019-10-13 23:17:41,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:41,521 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2019-10-13 23:17:41,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:41,521 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2019-10-13 23:17:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:41,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:41,525 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:41,526 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:41,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:41,526 INFO L82 PathProgramCache]: Analyzing trace with hash -259571496, now seen corresponding path program 1 times [2019-10-13 23:17:41,526 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:41,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008411074] [2019-10-13 23:17:41,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:41,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:41,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:41,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008411074] [2019-10-13 23:17:41,741 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:41,742 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:41,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411764217] [2019-10-13 23:17:41,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:41,746 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:41,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:41,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:41,747 INFO L87 Difference]: Start difference. First operand 139 states and 163 transitions. Second operand 3 states. [2019-10-13 23:17:41,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:41,800 INFO L93 Difference]: Finished difference Result 225 states and 263 transitions. [2019-10-13 23:17:41,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:41,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:41,807 INFO L225 Difference]: With dead ends: 225 [2019-10-13 23:17:41,808 INFO L226 Difference]: Without dead ends: 131 [2019-10-13 23:17:41,812 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:41,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-13 23:17:41,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-13 23:17:41,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 23:17:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2019-10-13 23:17:41,832 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 43 [2019-10-13 23:17:41,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:41,832 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2019-10-13 23:17:41,833 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2019-10-13 23:17:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:17:41,835 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:41,835 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:41,836 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:41,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:41,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1408950885, now seen corresponding path program 1 times [2019-10-13 23:17:41,837 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:41,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273350717] [2019-10-13 23:17:41,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:41,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:41,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:42,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273350717] [2019-10-13 23:17:42,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:42,017 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:42,017 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688128001] [2019-10-13 23:17:42,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:42,018 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:42,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:42,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:42,018 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 7 states. [2019-10-13 23:17:42,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:42,537 INFO L93 Difference]: Finished difference Result 394 states and 472 transitions. [2019-10-13 23:17:42,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:42,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-13 23:17:42,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:42,542 INFO L225 Difference]: With dead ends: 394 [2019-10-13 23:17:42,542 INFO L226 Difference]: Without dead ends: 285 [2019-10-13 23:17:42,543 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:42,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2019-10-13 23:17:42,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 273. [2019-10-13 23:17:42,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2019-10-13 23:17:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 326 transitions. [2019-10-13 23:17:42,593 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 326 transitions. Word has length 47 [2019-10-13 23:17:42,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:42,593 INFO L462 AbstractCegarLoop]: Abstraction has 273 states and 326 transitions. [2019-10-13 23:17:42,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 326 transitions. [2019-10-13 23:17:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:17:42,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:42,596 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:42,597 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:42,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:42,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2043331859, now seen corresponding path program 1 times [2019-10-13 23:17:42,598 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:42,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087553930] [2019-10-13 23:17:42,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:42,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:42,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:42,761 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087553930] [2019-10-13 23:17:42,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:42,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:42,763 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370630487] [2019-10-13 23:17:42,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:42,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:42,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:42,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:42,766 INFO L87 Difference]: Start difference. First operand 273 states and 326 transitions. Second operand 10 states. [2019-10-13 23:17:43,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:43,441 INFO L93 Difference]: Finished difference Result 987 states and 1226 transitions. [2019-10-13 23:17:43,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:43,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-13 23:17:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:43,450 INFO L225 Difference]: With dead ends: 987 [2019-10-13 23:17:43,450 INFO L226 Difference]: Without dead ends: 736 [2019-10-13 23:17:43,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:17:43,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2019-10-13 23:17:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 712. [2019-10-13 23:17:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2019-10-13 23:17:43,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 869 transitions. [2019-10-13 23:17:43,525 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 869 transitions. Word has length 51 [2019-10-13 23:17:43,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:43,526 INFO L462 AbstractCegarLoop]: Abstraction has 712 states and 869 transitions. [2019-10-13 23:17:43,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:43,526 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 869 transitions. [2019-10-13 23:17:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 23:17:43,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:43,531 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:43,531 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:43,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1386378359, now seen corresponding path program 1 times [2019-10-13 23:17:43,532 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:43,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029057870] [2019-10-13 23:17:43,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:43,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:43,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:43,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029057870] [2019-10-13 23:17:43,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:43,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:17:43,608 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316094128] [2019-10-13 23:17:43,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:17:43,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:43,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:17:43,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:43,609 INFO L87 Difference]: Start difference. First operand 712 states and 869 transitions. Second operand 4 states. [2019-10-13 23:17:44,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:44,004 INFO L93 Difference]: Finished difference Result 1738 states and 2275 transitions. [2019-10-13 23:17:44,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:17:44,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-10-13 23:17:44,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:44,017 INFO L225 Difference]: With dead ends: 1738 [2019-10-13 23:17:44,018 INFO L226 Difference]: Without dead ends: 1048 [2019-10-13 23:17:44,022 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:17:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2019-10-13 23:17:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 915. [2019-10-13 23:17:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2019-10-13 23:17:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1078 transitions. [2019-10-13 23:17:44,115 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1078 transitions. Word has length 57 [2019-10-13 23:17:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:44,116 INFO L462 AbstractCegarLoop]: Abstraction has 915 states and 1078 transitions. [2019-10-13 23:17:44,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:17:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1078 transitions. [2019-10-13 23:17:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 23:17:44,119 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:44,119 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:44,120 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:44,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1908087697, now seen corresponding path program 1 times [2019-10-13 23:17:44,120 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:44,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114213186] [2019-10-13 23:17:44,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:44,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:44,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:44,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114213186] [2019-10-13 23:17:44,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373683127] [2019-10-13 23:17:44,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:44,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:44,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:44,497 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:44,497 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:17:44,621 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:44,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:44,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112921095] [2019-10-13 23:17:44,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:44,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:44,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:44,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:44,624 INFO L87 Difference]: Start difference. First operand 915 states and 1078 transitions. Second operand 7 states. [2019-10-13 23:17:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:44,921 INFO L93 Difference]: Finished difference Result 928 states and 1094 transitions. [2019-10-13 23:17:44,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:44,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-13 23:17:44,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:44,927 INFO L225 Difference]: With dead ends: 928 [2019-10-13 23:17:44,927 INFO L226 Difference]: Without dead ends: 925 [2019-10-13 23:17:44,928 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:17:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2019-10-13 23:17:44,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 915. [2019-10-13 23:17:44,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2019-10-13 23:17:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1075 transitions. [2019-10-13 23:17:44,989 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1075 transitions. Word has length 79 [2019-10-13 23:17:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:44,990 INFO L462 AbstractCegarLoop]: Abstraction has 915 states and 1075 transitions. [2019-10-13 23:17:44,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1075 transitions. [2019-10-13 23:17:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-13 23:17:44,995 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:44,995 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:45,199 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:45,206 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:45,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:45,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2132943944, now seen corresponding path program 1 times [2019-10-13 23:17:45,206 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:45,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179644063] [2019-10-13 23:17:45,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:45,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:45,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 23:17:45,289 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179644063] [2019-10-13 23:17:45,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:45,290 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:45,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046623829] [2019-10-13 23:17:45,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:45,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:45,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:45,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:45,292 INFO L87 Difference]: Start difference. First operand 915 states and 1075 transitions. Second operand 3 states. [2019-10-13 23:17:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:45,356 INFO L93 Difference]: Finished difference Result 1444 states and 1702 transitions. [2019-10-13 23:17:45,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:45,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-13 23:17:45,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:45,362 INFO L225 Difference]: With dead ends: 1444 [2019-10-13 23:17:45,362 INFO L226 Difference]: Without dead ends: 551 [2019-10-13 23:17:45,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:45,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-13 23:17:45,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 536. [2019-10-13 23:17:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-10-13 23:17:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 619 transitions. [2019-10-13 23:17:45,399 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 619 transitions. Word has length 119 [2019-10-13 23:17:45,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:45,400 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 619 transitions. [2019-10-13 23:17:45,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 619 transitions. [2019-10-13 23:17:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 23:17:45,403 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:45,404 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:45,404 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:45,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1264110979, now seen corresponding path program 1 times [2019-10-13 23:17:45,405 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:45,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114734015] [2019-10-13 23:17:45,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:45,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:45,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 23:17:45,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114734015] [2019-10-13 23:17:45,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536682300] [2019-10-13 23:17:45,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:45,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 23:17:45,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:45,886 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:46,239 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 23:17:46,240 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:17:46,240 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-13 23:17:46,242 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733781597] [2019-10-13 23:17:46,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:46,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:46,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:46,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:17:46,243 INFO L87 Difference]: Start difference. First operand 536 states and 619 transitions. Second operand 3 states. [2019-10-13 23:17:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:46,327 INFO L93 Difference]: Finished difference Result 1050 states and 1216 transitions. [2019-10-13 23:17:46,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:46,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 23:17:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:46,330 INFO L225 Difference]: With dead ends: 1050 [2019-10-13 23:17:46,331 INFO L226 Difference]: Without dead ends: 536 [2019-10-13 23:17:46,333 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 310 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:17:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-10-13 23:17:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 526. [2019-10-13 23:17:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-10-13 23:17:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 577 transitions. [2019-10-13 23:17:46,365 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 577 transitions. Word has length 155 [2019-10-13 23:17:46,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:46,366 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 577 transitions. [2019-10-13 23:17:46,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:46,366 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 577 transitions. [2019-10-13 23:17:46,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 23:17:46,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:46,370 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:17:46,583 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:46,584 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:46,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:46,584 INFO L82 PathProgramCache]: Analyzing trace with hash -244700974, now seen corresponding path program 1 times [2019-10-13 23:17:46,584 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:46,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001826530] [2019-10-13 23:17:46,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:46,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:46,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:17:46,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001826530] [2019-10-13 23:17:46,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29299550] [2019-10-13 23:17:46,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:47,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 49 conjunts are in the unsatisfiable core [2019-10-13 23:17:47,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:47,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:17:47,376 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:47,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:47,945 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:47,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:48,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:17:48,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1728998210] [2019-10-13 23:17:48,125 INFO L162 IcfgInterpreter]: Started Sifa with 102 locations of interest [2019-10-13 23:17:48,126 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:48,133 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:48,142 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:48,143 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:57,382 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:59,215 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:59,349 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:59,488 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:59,666 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:59,882 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:00,082 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:00,249 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:00,430 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:00,683 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:18:00,827 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:00,963 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:01,084 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:01,216 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:01,331 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:18:01,340 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:18:01,490 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-13 23:18:01,635 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-13 23:18:01,742 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:01,848 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:02,058 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:02,220 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:02,328 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:02,460 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:02,599 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:02,871 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:03,076 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 542 [2019-10-13 23:18:03,295 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:03,405 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:03,531 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:03,650 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,005 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,243 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:04,367 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:04,678 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:05,009 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:05,322 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:05,640 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:05,776 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:05,991 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:06,200 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:18:06,315 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:06,452 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:06,559 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:06,695 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:06,892 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:07,001 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:07,124 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:07,244 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:07,352 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:07,478 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:07,657 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:07,767 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:07,896 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:08,192 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:18:08,301 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:08,563 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:08,694 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:08,803 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:08,935 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:09,051 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:18:09,167 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:18:09,291 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:18:09,404 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:09,519 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:09,731 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:09,869 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:10,008 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:10,133 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:10,249 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:10,366 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:10,632 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:10,869 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:10,994 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:11,117 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:18:11,346 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:11,457 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:11,575 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:11,778 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:11,887 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,005 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,114 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,222 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,353 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:12,559 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:12,670 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:12,800 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,012 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:18:13,124 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,257 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,460 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:18:13,571 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,695 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:13,889 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 558 [2019-10-13 23:18:13,998 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:18:14,131 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:14,355 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 560 [2019-10-13 23:18:14,467 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:14,589 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:18:14,869 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:14,979 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,098 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,307 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:15,413 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,532 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,639 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,747 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:15,864 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:16,096 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:16,203 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:16,322 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:16,518 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:18:16,626 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:16,751 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:16,859 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:16,968 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:17,083 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:18:17,312 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:18:17,422 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:18:17,550 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560