java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:21:42,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:21:42,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:21:42,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:21:42,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:21:42,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:21:42,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:21:42,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:21:42,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:21:42,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:21:42,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:21:42,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:21:42,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:21:42,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:21:42,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:21:42,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:21:42,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:21:42,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:21:42,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:21:42,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:21:42,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:21:42,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:21:42,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:21:42,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:21:42,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:21:42,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:21:42,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:21:42,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:21:42,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:21:42,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:21:42,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:21:42,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:21:42,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:21:42,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:21:42,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:21:42,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:21:42,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:21:42,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:21:42,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:21:42,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:21:42,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:21:42,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:21:42,627 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:21:42,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:21:42,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:21:42,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:21:42,629 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:21:42,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:21:42,629 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:21:42,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:21:42,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:21:42,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:21:42,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:21:42,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:21:42,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:21:42,631 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:21:42,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:21:42,631 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:21:42,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:21:42,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:21:42,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:21:42,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:21:42,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:21:42,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:21:42,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:21:42,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:21:42,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:21:42,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:21:42,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:21:42,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:21:42,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:21:42,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:21:42,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:21:42,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:21:42,996 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:21:42,996 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:21:42,998 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-10-15 03:21:43,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c919b664e/ffb1bbb1b1464eb59e0488ab8d5f1b54/FLAG18666724d [2019-10-15 03:21:43,512 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:21:43,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2019-10-15 03:21:43,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c919b664e/ffb1bbb1b1464eb59e0488ab8d5f1b54/FLAG18666724d [2019-10-15 03:21:43,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c919b664e/ffb1bbb1b1464eb59e0488ab8d5f1b54 [2019-10-15 03:21:43,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:21:43,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:21:43,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:43,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:21:43,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:21:43,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:43" (1/1) ... [2019-10-15 03:21:43,887 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 15.10 03:21:43, skipping insertion in model container [2019-10-15 03:21:43,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:43" (1/1) ... [2019-10-15 03:21:43,894 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:21:43,949 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:21:44,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:44,457 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:21:44,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:44,594 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:21:44,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44 WrapperNode [2019-10-15 03:21:44,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:44,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:21:44,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:21:44,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:21:44,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2019-10-15 03:21:44,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2019-10-15 03:21:44,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2019-10-15 03:21:44,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2019-10-15 03:21:44,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2019-10-15 03:21:44,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2019-10-15 03:21:44,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... [2019-10-15 03:21:44,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:21:44,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:21:44,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:21:44,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:21:44,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:21:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:21:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:21:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:21:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:21:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:21:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:21:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:21:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:21:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:21:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:21:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:21:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:21:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:21:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:21:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:21:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:21:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:21:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:21:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-15 03:21:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:21:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:21:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:21:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:21:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:21:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:21:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:21:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:21:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:21:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:21:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:21:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:21:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:21:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:21:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:21:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:21:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:21:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:21:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:21:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:21:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:21:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:21:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:21:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:21:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:21:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:21:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:21:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:21:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:21:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-15 03:21:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:21:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:21:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:21:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:21:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:21:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:21:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:21:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:21:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:21:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:21:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:21:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:21:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:21:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:21:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:21:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:21:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:21:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:21:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:21:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:21:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:21:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:21:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:21:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:21:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:21:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:21:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:21:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:21:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:21:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:21:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:21:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:21:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:21:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:21:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:21:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:21:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:21:46,409 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:21:46,410 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:21:46,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:46 BoogieIcfgContainer [2019-10-15 03:21:46,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:21:46,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:21:46,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:21:46,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:21:46,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:21:43" (1/3) ... [2019-10-15 03:21:46,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecc9cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:46, skipping insertion in model container [2019-10-15 03:21:46,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:44" (2/3) ... [2019-10-15 03:21:46,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecc9cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:46, skipping insertion in model container [2019-10-15 03:21:46,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:46" (3/3) ... [2019-10-15 03:21:46,419 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2019-10-15 03:21:46,428 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:21:46,437 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:21:46,448 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:21:46,474 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:21:46,474 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:21:46,474 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:21:46,474 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:21:46,475 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:21:46,475 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:21:46,475 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:21:46,475 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:21:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2019-10-15 03:21:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 03:21:46,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:46,507 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:46,509 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:46,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:46,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1800009591, now seen corresponding path program 1 times [2019-10-15 03:21:46,524 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:46,525 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946644882] [2019-10-15 03:21:46,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:46,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:46,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:46,893 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946644882] [2019-10-15 03:21:46,893 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:46,894 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:21:46,895 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624358974] [2019-10-15 03:21:46,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:21:46,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:46,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:21:46,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:21:46,916 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 2 states. [2019-10-15 03:21:46,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:46,954 INFO L93 Difference]: Finished difference Result 251 states and 302 transitions. [2019-10-15 03:21:46,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:21:46,955 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 03:21:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:46,967 INFO L225 Difference]: With dead ends: 251 [2019-10-15 03:21:46,968 INFO L226 Difference]: Without dead ends: 126 [2019-10-15 03:21:46,972 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:21:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-15 03:21:47,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-15 03:21:47,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-15 03:21:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2019-10-15 03:21:47,024 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 42 [2019-10-15 03:21:47,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:47,024 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2019-10-15 03:21:47,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:21:47,025 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2019-10-15 03:21:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:21:47,028 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:47,028 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:47,029 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:47,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:47,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1243027552, now seen corresponding path program 1 times [2019-10-15 03:21:47,029 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:47,030 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551520890] [2019-10-15 03:21:47,030 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,030 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:47,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551520890] [2019-10-15 03:21:47,123 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:47,123 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:21:47,124 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819682930] [2019-10-15 03:21:47,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:47,126 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:47,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:47,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:47,127 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand 3 states. [2019-10-15 03:21:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:47,149 INFO L93 Difference]: Finished difference Result 202 states and 230 transitions. [2019-10-15 03:21:47,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:47,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-15 03:21:47,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:47,152 INFO L225 Difference]: With dead ends: 202 [2019-10-15 03:21:47,153 INFO L226 Difference]: Without dead ends: 118 [2019-10-15 03:21:47,154 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-15 03:21:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-15 03:21:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-15 03:21:47,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2019-10-15 03:21:47,169 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 43 [2019-10-15 03:21:47,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:47,170 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2019-10-15 03:21:47,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:47,170 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2019-10-15 03:21:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 03:21:47,172 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:47,173 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:47,173 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:47,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:47,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1468436695, now seen corresponding path program 1 times [2019-10-15 03:21:47,174 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:47,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854872781] [2019-10-15 03:21:47,174 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,174 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:47,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854872781] [2019-10-15 03:21:47,349 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:47,349 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:21:47,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361022700] [2019-10-15 03:21:47,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:47,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:47,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:47,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:21:47,351 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 7 states. [2019-10-15 03:21:47,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:47,845 INFO L93 Difference]: Finished difference Result 354 states and 415 transitions. [2019-10-15 03:21:47,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:21:47,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-15 03:21:47,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:47,850 INFO L225 Difference]: With dead ends: 354 [2019-10-15 03:21:47,850 INFO L226 Difference]: Without dead ends: 258 [2019-10-15 03:21:47,852 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:21:47,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-10-15 03:21:47,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 250. [2019-10-15 03:21:47,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-10-15 03:21:47,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 293 transitions. [2019-10-15 03:21:47,889 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 293 transitions. Word has length 46 [2019-10-15 03:21:47,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:47,889 INFO L462 AbstractCegarLoop]: Abstraction has 250 states and 293 transitions. [2019-10-15 03:21:47,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:47,890 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 293 transitions. [2019-10-15 03:21:47,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 03:21:47,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:47,892 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:47,893 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:47,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:47,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1599024539, now seen corresponding path program 1 times [2019-10-15 03:21:47,893 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:47,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841013419] [2019-10-15 03:21:47,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:47,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:48,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841013419] [2019-10-15 03:21:48,023 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:48,023 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:21:48,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145012833] [2019-10-15 03:21:48,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:21:48,024 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:48,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:21:48,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:21:48,025 INFO L87 Difference]: Start difference. First operand 250 states and 293 transitions. Second operand 10 states. [2019-10-15 03:21:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:48,657 INFO L93 Difference]: Finished difference Result 895 states and 1094 transitions. [2019-10-15 03:21:48,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:21:48,657 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-15 03:21:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:48,664 INFO L225 Difference]: With dead ends: 895 [2019-10-15 03:21:48,664 INFO L226 Difference]: Without dead ends: 667 [2019-10-15 03:21:48,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:21:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-10-15 03:21:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 643. [2019-10-15 03:21:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-10-15 03:21:48,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 770 transitions. [2019-10-15 03:21:48,758 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 770 transitions. Word has length 51 [2019-10-15 03:21:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:48,759 INFO L462 AbstractCegarLoop]: Abstraction has 643 states and 770 transitions. [2019-10-15 03:21:48,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:21:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 770 transitions. [2019-10-15 03:21:48,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 03:21:48,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:48,769 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:48,770 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1625368362, now seen corresponding path program 1 times [2019-10-15 03:21:48,770 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:48,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620275631] [2019-10-15 03:21:48,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:48,902 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620275631] [2019-10-15 03:21:48,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:48,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:21:48,903 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979649272] [2019-10-15 03:21:48,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:21:48,904 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:48,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:21:48,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:21:48,905 INFO L87 Difference]: Start difference. First operand 643 states and 770 transitions. Second operand 4 states. [2019-10-15 03:21:49,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:49,240 INFO L93 Difference]: Finished difference Result 1572 states and 2052 transitions. [2019-10-15 03:21:49,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:21:49,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-15 03:21:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:49,253 INFO L225 Difference]: With dead ends: 1572 [2019-10-15 03:21:49,253 INFO L226 Difference]: Without dead ends: 951 [2019-10-15 03:21:49,256 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:21:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2019-10-15 03:21:49,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 821. [2019-10-15 03:21:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-10-15 03:21:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 974 transitions. [2019-10-15 03:21:49,353 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 974 transitions. Word has length 54 [2019-10-15 03:21:49,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:49,355 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 974 transitions. [2019-10-15 03:21:49,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:21:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 974 transitions. [2019-10-15 03:21:49,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-15 03:21:49,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:49,362 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:49,362 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:49,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:49,362 INFO L82 PathProgramCache]: Analyzing trace with hash -135213916, now seen corresponding path program 1 times [2019-10-15 03:21:49,363 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:49,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113395935] [2019-10-15 03:21:49,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:49,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:49,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:21:49,517 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113395935] [2019-10-15 03:21:49,517 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029726497] [2019-10-15 03:21:49,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:49,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 03:21:49,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:21:49,788 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:49,876 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:21:49,877 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:21:49,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-15 03:21:49,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123895467] [2019-10-15 03:21:49,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:49,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:49,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:49,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:21:49,879 INFO L87 Difference]: Start difference. First operand 821 states and 974 transitions. Second operand 7 states. [2019-10-15 03:21:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:50,145 INFO L93 Difference]: Finished difference Result 834 states and 990 transitions. [2019-10-15 03:21:50,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:21:50,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-15 03:21:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:50,151 INFO L225 Difference]: With dead ends: 834 [2019-10-15 03:21:50,151 INFO L226 Difference]: Without dead ends: 831 [2019-10-15 03:21:50,152 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:21:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-10-15 03:21:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 821. [2019-10-15 03:21:50,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-10-15 03:21:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 971 transitions. [2019-10-15 03:21:50,215 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 971 transitions. Word has length 78 [2019-10-15 03:21:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:50,215 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 971 transitions. [2019-10-15 03:21:50,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 971 transitions. [2019-10-15 03:21:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-15 03:21:50,220 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:50,221 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:50,426 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:50,426 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:50,427 INFO L82 PathProgramCache]: Analyzing trace with hash 923821201, now seen corresponding path program 1 times [2019-10-15 03:21:50,427 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:50,427 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135516973] [2019-10-15 03:21:50,427 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:50,427 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:50,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:21:50,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135516973] [2019-10-15 03:21:50,513 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:50,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:21:50,513 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071433639] [2019-10-15 03:21:50,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:50,514 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:50,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:50,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:50,515 INFO L87 Difference]: Start difference. First operand 821 states and 971 transitions. Second operand 3 states. [2019-10-15 03:21:50,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:50,573 INFO L93 Difference]: Finished difference Result 947 states and 1124 transitions. [2019-10-15 03:21:50,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:50,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-10-15 03:21:50,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:50,579 INFO L225 Difference]: With dead ends: 947 [2019-10-15 03:21:50,579 INFO L226 Difference]: Without dead ends: 363 [2019-10-15 03:21:50,582 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-15 03:21:50,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-15 03:21:50,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-15 03:21:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2019-10-15 03:21:50,603 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 113 [2019-10-15 03:21:50,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:50,604 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2019-10-15 03:21:50,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2019-10-15 03:21:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 03:21:50,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:50,607 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:50,607 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:50,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:50,607 INFO L82 PathProgramCache]: Analyzing trace with hash -396617406, now seen corresponding path program 1 times [2019-10-15 03:21:50,608 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:50,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995128636] [2019-10-15 03:21:50,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:50,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:50,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:50,726 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:21:50,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995128636] [2019-10-15 03:21:50,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876023674] [2019-10-15 03:21:50,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:50,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:21:50,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:21:51,062 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:51,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:51,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:21:51,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1731200752] [2019-10-15 03:21:51,490 INFO L162 IcfgInterpreter]: Started Sifa with 102 locations of interest [2019-10-15 03:21:51,490 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:21:51,496 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:21:51,504 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:21:51,504 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:21:59,290 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-15 03:22:00,868 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:22:01,009 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:01,132 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:01,323 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:01,576 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:01,785 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:01,983 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:02,148 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:02,490 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-15 03:22:02,638 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:02,792 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:02,910 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,056 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,173 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-15 03:22:03,431 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-15 03:22:03,588 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:03,691 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:03,821 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:04,054 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:04,247 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:04,369 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:04,471 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:04,619 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:04,893 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-15 03:22:05,115 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:05,247 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:05,352 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:05,467 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:05,778 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:05,906 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:06,012 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:06,127 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:06,451 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:06,759 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:06,963 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:07,081 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,206 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:07,419 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,726 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,940 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:08,059 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,183 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,291 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,431 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,679 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:08,811 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,936 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,042 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,149 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,263 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,402 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:09,514 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:09,641 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:09,892 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:10,007 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:10,126 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:10,308 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:10,422 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:10,549 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:10,661 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:10,772 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:10,957 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:11,068 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:11,177 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:11,301 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:11,429 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:11,541 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:11,660 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:11,878 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-15 03:22:11,988 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,118 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,228 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,356 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,475 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:12,679 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:12,797 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:12,913 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:13,104 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:13,209 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:13,333 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:13,438 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:13,549 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:13,663 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:13,783 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:13,891 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:14,020 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:14,248 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:14,355 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:14,490 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:14,670 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:14,778 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:14,893 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:15,014 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:15,123 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:15,249 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:15,360 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:15,470 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:15,597 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:15,794 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:15,899 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,013 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,215 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:16,320 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,436 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,541 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,645 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,770 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:16,970 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:17,074 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:17,192 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:17,393 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:17,498 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:17,617 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:17,817 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:17,921 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,038 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,239 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:18,348 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,464 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,569 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,685 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:18,797 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:19,051 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:19,159 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:19,278 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:19,459 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:19,571 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:19,688 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:19,874 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-15 03:22:19,979 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:20,093 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:20,218 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:20,326 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:20,445 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:20,556 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:20,664 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:20,784 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:20,981 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:21,085 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:21,202 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:21,390 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:21,495 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:21,611 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:21,715 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:21,818 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:21,931 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:22,091 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:22,199 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:22,322 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:22,555 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:22,797 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:22,929 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:23,117 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:23,225 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:23,340 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:23,450 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:23,562 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:23,681 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-15 03:22:23,800 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:23,914 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,034 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,155 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,263 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,383 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,495 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,607 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,736 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-15 03:22:24,937 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:25,043 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:25,161 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:25,352 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:25,456 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556