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_spec1_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:14:38,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:14:38,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:14:38,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:14:38,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:14:38,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:14:38,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:14:38,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:14:38,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:14:38,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:14:38,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:14:38,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:14:38,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:14:38,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:14:38,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:14:38,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:14:38,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:14:38,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:14:38,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:14:38,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:14:38,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:14:38,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:14:38,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:14:38,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:14:38,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:14:38,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:14:38,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:14:38,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:14:38,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:14:38,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:14:38,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:14:38,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:14:38,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:14:38,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:14:38,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:14:38,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:14:38,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:14:38,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:14:38,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:14:38,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:14:38,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:14:38,672 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 23:14:38,685 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:14:38,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:14:38,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:14:38,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:14:38,687 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:14:38,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:14:38,687 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:14:38,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:14:38,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:14:38,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:14:38,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:14:38,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:14:38,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:14:38,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:14:38,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:14:38,689 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:14:38,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:14:38,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:14:38,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:14:38,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:14:38,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:14:38,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:14:38,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:14:38,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:14:38,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:14:38,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:14:38,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:14:38,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:14:38,692 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 23:14:38,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:14:38,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:14:38,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:14:38,991 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:14:38,991 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:14:38,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product59.cil.c [2019-10-13 23:14:39,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5e50ea1/9306c95fab20450796f591b906b86bb9/FLAG05db9001f [2019-10-13 23:14:39,562 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:14:39,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product59.cil.c [2019-10-13 23:14:39,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5e50ea1/9306c95fab20450796f591b906b86bb9/FLAG05db9001f [2019-10-13 23:14:39,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5e50ea1/9306c95fab20450796f591b906b86bb9 [2019-10-13 23:14:39,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:14:39,931 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:14:39,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:39,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:14:39,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:14:39,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e20f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39, skipping insertion in model container [2019-10-13 23:14:39,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,946 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:14:39,985 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:14:40,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:40,413 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:14:40,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:40,563 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:14:40,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40 WrapperNode [2019-10-13 23:14:40,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:40,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:14:40,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:14:40,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:14:40,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:14:40,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:14:40,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:14:40,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:14:40,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (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 23:14:40,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:14:40,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:14:40,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:40,718 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:14:40,718 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:14:40,719 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:14:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:14:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:14:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:14:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:14:40,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:14:40,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:14:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:14:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:14:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:14:40,722 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:14:40,724 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:14:40,724 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:14:40,725 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:14:40,725 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:14:40,725 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:14:40,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:14:40,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:14:40,726 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:14:40,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:14:40,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:14:40,727 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:14:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:14:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:14:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:14:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:14:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:14:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:14:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:14:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:14:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:14:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:14:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:14:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:14:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:14:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:14:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:14:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:14:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:14:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:14:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:14:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:14:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:14:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:14:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:14:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:14:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:14:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:14:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:14:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:14:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:14:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:14:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:14:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:14:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:14:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:14:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:14:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:14:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:14:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:14:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:14:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:14:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:14:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:14:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:14:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:14:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:14:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:14:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:14:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:14:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:14:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:14:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:14:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:14:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:14:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:14:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:14:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:14:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:14:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:14:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:14:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:14:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:14:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:14:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:14:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:14:42,256 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:14:42,256 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:14:42,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:42 BoogieIcfgContainer [2019-10-13 23:14:42,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:14:42,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:14:42,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:14:42,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:14:42,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:14:39" (1/3) ... [2019-10-13 23:14:42,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d936c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:42, skipping insertion in model container [2019-10-13 23:14:42,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (2/3) ... [2019-10-13 23:14:42,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d936c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:42, skipping insertion in model container [2019-10-13 23:14:42,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:42" (3/3) ... [2019-10-13 23:14:42,267 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product59.cil.c [2019-10-13 23:14:42,276 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:14:42,285 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:14:42,297 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:14:42,323 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:14:42,323 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:14:42,323 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:14:42,323 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:14:42,324 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:14:42,324 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:14:42,324 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:14:42,324 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:14:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-10-13 23:14:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:14:42,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:42,358 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 23:14:42,360 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:42,366 INFO L82 PathProgramCache]: Analyzing trace with hash 441270767, now seen corresponding path program 1 times [2019-10-13 23:14:42,376 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:42,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666721718] [2019-10-13 23:14:42,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:42,716 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 23:14:42,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666721718] [2019-10-13 23:14:42,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:42,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:14:42,720 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496528458] [2019-10-13 23:14:42,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:14:42,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:42,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:14:42,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:14:42,751 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2019-10-13 23:14:42,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:42,821 INFO L93 Difference]: Finished difference Result 247 states and 300 transitions. [2019-10-13 23:14:42,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:14:42,822 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:14:42,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:42,834 INFO L225 Difference]: With dead ends: 247 [2019-10-13 23:14:42,835 INFO L226 Difference]: Without dead ends: 124 [2019-10-13 23:14:42,839 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 23:14:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-13 23:14:42,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-13 23:14:42,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-13 23:14:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2019-10-13 23:14:42,896 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 42 [2019-10-13 23:14:42,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:42,896 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2019-10-13 23:14:42,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:14:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2019-10-13 23:14:42,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:14:42,899 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:42,900 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 23:14:42,900 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:42,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:42,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2060866146, now seen corresponding path program 1 times [2019-10-13 23:14:42,901 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:42,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369686071] [2019-10-13 23:14:42,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:43,075 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 23:14:43,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369686071] [2019-10-13 23:14:43,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:43,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:43,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207373299] [2019-10-13 23:14:43,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:43,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:43,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:43,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:43,080 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 3 states. [2019-10-13 23:14:43,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:43,116 INFO L93 Difference]: Finished difference Result 198 states and 228 transitions. [2019-10-13 23:14:43,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:43,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:14:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:43,120 INFO L225 Difference]: With dead ends: 198 [2019-10-13 23:14:43,120 INFO L226 Difference]: Without dead ends: 116 [2019-10-13 23:14:43,126 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 23:14:43,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-13 23:14:43,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-13 23:14:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-13 23:14:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 133 transitions. [2019-10-13 23:14:43,155 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 133 transitions. Word has length 43 [2019-10-13 23:14:43,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:43,155 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 133 transitions. [2019-10-13 23:14:43,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 133 transitions. [2019-10-13 23:14:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:14:43,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:43,160 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:43,160 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:43,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:43,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1525287832, now seen corresponding path program 1 times [2019-10-13 23:14:43,163 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:43,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367623258] [2019-10-13 23:14:43,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:43,401 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 23:14:43,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367623258] [2019-10-13 23:14:43,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:43,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:14:43,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793098443] [2019-10-13 23:14:43,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:14:43,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:43,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:14:43,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:14:43,404 INFO L87 Difference]: Start difference. First operand 116 states and 133 transitions. Second operand 7 states. [2019-10-13 23:14:43,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:43,856 INFO L93 Difference]: Finished difference Result 348 states and 412 transitions. [2019-10-13 23:14:43,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:14:43,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-13 23:14:43,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:43,861 INFO L225 Difference]: With dead ends: 348 [2019-10-13 23:14:43,862 INFO L226 Difference]: Without dead ends: 254 [2019-10-13 23:14:43,867 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 23:14:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-10-13 23:14:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 246. [2019-10-13 23:14:43,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-10-13 23:14:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 291 transitions. [2019-10-13 23:14:43,924 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 291 transitions. Word has length 46 [2019-10-13 23:14:43,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:43,924 INFO L462 AbstractCegarLoop]: Abstraction has 246 states and 291 transitions. [2019-10-13 23:14:43,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:14:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 291 transitions. [2019-10-13 23:14:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:14:43,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:43,927 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 23:14:43,927 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:43,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:43,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1415175768, now seen corresponding path program 1 times [2019-10-13 23:14:43,927 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:43,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358395291] [2019-10-13 23:14:43,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:44,005 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 23:14:44,006 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358395291] [2019-10-13 23:14:44,006 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:44,006 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:14:44,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083186133] [2019-10-13 23:14:44,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:14:44,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:44,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:14:44,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:14:44,008 INFO L87 Difference]: Start difference. First operand 246 states and 291 transitions. Second operand 6 states. [2019-10-13 23:14:44,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:44,237 INFO L93 Difference]: Finished difference Result 679 states and 822 transitions. [2019-10-13 23:14:44,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:14:44,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2019-10-13 23:14:44,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:44,246 INFO L225 Difference]: With dead ends: 679 [2019-10-13 23:14:44,246 INFO L226 Difference]: Without dead ends: 455 [2019-10-13 23:14:44,248 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:14:44,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-10-13 23:14:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 443. [2019-10-13 23:14:44,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-10-13 23:14:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 528 transitions. [2019-10-13 23:14:44,320 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 528 transitions. Word has length 51 [2019-10-13 23:14:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:44,321 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 528 transitions. [2019-10-13 23:14:44,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:14:44,327 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 528 transitions. [2019-10-13 23:14:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 23:14:44,332 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:44,332 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:44,332 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:44,332 INFO L82 PathProgramCache]: Analyzing trace with hash 126265580, now seen corresponding path program 1 times [2019-10-13 23:14:44,333 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:44,333 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778447363] [2019-10-13 23:14:44,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:44,415 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 23:14:44,415 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778447363] [2019-10-13 23:14:44,415 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:44,416 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:14:44,439 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953476743] [2019-10-13 23:14:44,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:14:44,440 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:44,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:14:44,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:14:44,441 INFO L87 Difference]: Start difference. First operand 443 states and 528 transitions. Second operand 7 states. [2019-10-13 23:14:45,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:45,013 INFO L93 Difference]: Finished difference Result 1159 states and 1498 transitions. [2019-10-13 23:14:45,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:14:45,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2019-10-13 23:14:45,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:45,019 INFO L225 Difference]: With dead ends: 1159 [2019-10-13 23:14:45,019 INFO L226 Difference]: Without dead ends: 738 [2019-10-13 23:14:45,021 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:14:45,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2019-10-13 23:14:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 651. [2019-10-13 23:14:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2019-10-13 23:14:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 777 transitions. [2019-10-13 23:14:45,077 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 777 transitions. Word has length 54 [2019-10-13 23:14:45,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:45,077 INFO L462 AbstractCegarLoop]: Abstraction has 651 states and 777 transitions. [2019-10-13 23:14:45,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:14:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 777 transitions. [2019-10-13 23:14:45,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-13 23:14:45,080 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:45,080 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:14:45,081 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:45,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1698994446, now seen corresponding path program 1 times [2019-10-13 23:14:45,081 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:45,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615951195] [2019-10-13 23:14:45,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:45,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:45,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:14:45,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615951195] [2019-10-13 23:14:45,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343017509] [2019-10-13 23:14:45,302 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 23:14:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:45,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 23:14:45,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:45,589 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:14:46,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:14:46,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 23 [2019-10-13 23:14:46,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861270910] [2019-10-13 23:14:46,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:14:46,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:46,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:14:46,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:14:46,097 INFO L87 Difference]: Start difference. First operand 651 states and 777 transitions. Second operand 11 states. [2019-10-13 23:14:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:46,825 INFO L93 Difference]: Finished difference Result 1561 states and 1945 transitions. [2019-10-13 23:14:46,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:14:46,826 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2019-10-13 23:14:46,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:46,832 INFO L225 Difference]: With dead ends: 1561 [2019-10-13 23:14:46,832 INFO L226 Difference]: Without dead ends: 932 [2019-10-13 23:14:46,835 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2019-10-13 23:14:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2019-10-13 23:14:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 912. [2019-10-13 23:14:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2019-10-13 23:14:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1100 transitions. [2019-10-13 23:14:46,892 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1100 transitions. Word has length 84 [2019-10-13 23:14:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:46,892 INFO L462 AbstractCegarLoop]: Abstraction has 912 states and 1100 transitions. [2019-10-13 23:14:46,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:14:46,892 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1100 transitions. [2019-10-13 23:14:46,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 23:14:46,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:46,897 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:47,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:47,101 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:47,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:47,102 INFO L82 PathProgramCache]: Analyzing trace with hash 771422798, now seen corresponding path program 1 times [2019-10-13 23:14:47,102 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:47,102 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756269908] [2019-10-13 23:14:47,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:47,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:47,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:47,343 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:14:47,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756269908] [2019-10-13 23:14:47,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884299701] [2019-10-13 23:14:47,344 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 23:14:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:47,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-13 23:14:47,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:47,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:47,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:47,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:14:47,963 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:48,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:14:49,385 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:14:49,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-13 23:14:49,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893500684] [2019-10-13 23:14:49,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:14:49,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:49,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:14:49,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 23:14:49,387 INFO L87 Difference]: Start difference. First operand 912 states and 1100 transitions. Second operand 14 states. [2019-10-13 23:14:51,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:51,698 INFO L93 Difference]: Finished difference Result 2610 states and 3289 transitions. [2019-10-13 23:14:51,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:14:51,698 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 130 [2019-10-13 23:14:51,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:51,712 INFO L225 Difference]: With dead ends: 2610 [2019-10-13 23:14:51,712 INFO L226 Difference]: Without dead ends: 1720 [2019-10-13 23:14:51,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 237 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 23:14:51,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2019-10-13 23:14:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1610. [2019-10-13 23:14:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1610 states. [2019-10-13 23:14:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 1962 transitions. [2019-10-13 23:14:51,839 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 1962 transitions. Word has length 130 [2019-10-13 23:14:51,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:51,839 INFO L462 AbstractCegarLoop]: Abstraction has 1610 states and 1962 transitions. [2019-10-13 23:14:51,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:14:51,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1962 transitions. [2019-10-13 23:14:51,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:14:51,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:51,845 INFO L380 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:52,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:52,060 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:52,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:52,060 INFO L82 PathProgramCache]: Analyzing trace with hash -2104519869, now seen corresponding path program 1 times [2019-10-13 23:14:52,060 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:52,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975317825] [2019-10-13 23:14:52,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:52,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:52,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:14:52,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975317825] [2019-10-13 23:14:52,489 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925644924] [2019-10-13 23:14:52,489 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 23:14:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:52,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-13 23:14:52,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:52,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:52,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:14:53,058 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:53,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:14:53,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1663753116] [2019-10-13 23:14:54,009 INFO L162 IcfgInterpreter]: Started Sifa with 106 locations of interest [2019-10-13 23:14:54,010 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:14:54,016 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:14:54,023 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:14:54,024 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:15:02,939 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:15:04,534 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:15:04,661 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:04,786 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:04,922 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:05,185 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:05,410 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:05,607 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:05,794 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,155 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:15:06,276 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,435 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,543 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,691 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,814 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,821 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:15:07,055 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-13 23:15:07,166 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,280 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,440 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:07,560 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,667 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,800 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:07,981 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:08,091 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:08,213 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:08,460 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-13 23:15:08,562 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:08,727 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:08,835 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:09,053 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:09,257 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:09,406 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:09,517 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:09,738 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:09,952 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,082 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:10,220 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,439 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:10,641 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,760 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:10,979 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:11,099 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:11,313 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:11,431 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:11,747 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:11,915 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,047 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,167 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,280 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,390 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,533 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,642 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,751 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,891 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,029 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:13,151 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:13,277 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:13,401 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:13,513 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:13,642 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:13,755 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:13,874 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:14,020 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:14,134 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:14,245 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:14,373 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:14,485 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:14,597 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:14,725 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:14,849 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:14,973 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:15,096 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:15,303 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-13 23:15:15,414 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:15,555 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:15,667 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:15,781 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:15,903 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:16,141 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,272 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,401 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,515 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,640 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,768 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,879 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,990 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:17,108 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:17,232 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:17,350 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:17,475 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:17,717 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:15:17,827 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:18,013 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:18,212 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:15:18,335 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:18,455 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:18,678 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:15:18,787 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:18,960 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:19,158 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-13 23:15:19,268 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:19,393 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:19,515 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:19,624 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:19,768 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:19,980 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:20,089 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556