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_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:15:22,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:15:22,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:15:22,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:15:22,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:15:22,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:15:22,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:15:22,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:15:22,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:15:22,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:15:22,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:15:22,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:15:22,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:15:22,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:15:22,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:15:22,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:15:22,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:15:22,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:15:22,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:15:22,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:15:22,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:15:22,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:15:22,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:15:22,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:15:22,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:15:22,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:15:22,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:15:22,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:15:22,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:15:22,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:15:22,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:15:22,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:15:22,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:15:22,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:15:22,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:15:22,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:15:22,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:15:22,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:15:22,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:15:22,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:15:22,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:15:22,600 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 23:15:22,621 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:15:22,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:15:22,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:15:22,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:15:22,624 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:15:22,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:15:22,624 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:15:22,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:15:22,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:15:22,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:15:22,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:15:22,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:15:22,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:15:22,627 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:15:22,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:15:22,627 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:15:22,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:15:22,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:15:22,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:15:22,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:15:22,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:15:22,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:15:22,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:15:22,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:15:22,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:15:22,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:15:22,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:15:22,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:15:22,630 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 23:15:22,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:15:22,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:15:22,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:15:22,937 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:15:22,938 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:15:22,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-13 23:15:23,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9faa1bf/20d9e775a0d247b495714008b2695ae5/FLAG1235e3162 [2019-10-13 23:15:23,529 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:15:23,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-10-13 23:15:23,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9faa1bf/20d9e775a0d247b495714008b2695ae5/FLAG1235e3162 [2019-10-13 23:15:23,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9faa1bf/20d9e775a0d247b495714008b2695ae5 [2019-10-13 23:15:23,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:15:23,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:15:23,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:23,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:15:23,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:15:23,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:23" (1/1) ... [2019-10-13 23:15:23,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4caf3c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:23, skipping insertion in model container [2019-10-13 23:15:23,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:23" (1/1) ... [2019-10-13 23:15:23,857 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:15:23,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:15:24,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:24,335 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:15:24,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:24,453 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:15:24,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24 WrapperNode [2019-10-13 23:15:24,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:24,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:15:24,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:15:24,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:15:24,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (1/1) ... [2019-10-13 23:15:24,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (1/1) ... [2019-10-13 23:15:24,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (1/1) ... [2019-10-13 23:15:24,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (1/1) ... [2019-10-13 23:15:24,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (1/1) ... [2019-10-13 23:15:24,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (1/1) ... [2019-10-13 23:15:24,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (1/1) ... [2019-10-13 23:15:24,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:15:24,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:15:24,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:15:24,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:15:24,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (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 23:15:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:15:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:15:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:15:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:15:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:15:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:15:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:15:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:15:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:15:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:15:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:15:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:15:24,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:15:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:15:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:15:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:15:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:15:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:15:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:15:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:15:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:15:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:15:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:15:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:15:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:15:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:15:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:15:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:15:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:15:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:15:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:15:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:15:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:15:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:15:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:15:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:15:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:15:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:15:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:15:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:15:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:15:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:15:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:15:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:15:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:15:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:15:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:15:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:15:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:15:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:15:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:15:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:15:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:15:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:15:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:15:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:15:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:15:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:15:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:15:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:15:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:15:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:15:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:15:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:15:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:15:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:15:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:15:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:15:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:15:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:15:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:15:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:15:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:15:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:15:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:15:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:15:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:15:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:15:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:15:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:15:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:15:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:15:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:15:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:15:26,150 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:15:26,151 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:15:26,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:26 BoogieIcfgContainer [2019-10-13 23:15:26,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:15:26,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:15:26,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:15:26,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:15:26,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:15:23" (1/3) ... [2019-10-13 23:15:26,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33db9b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:26, skipping insertion in model container [2019-10-13 23:15:26,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:24" (2/3) ... [2019-10-13 23:15:26,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33db9b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:26, skipping insertion in model container [2019-10-13 23:15:26,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:26" (3/3) ... [2019-10-13 23:15:26,164 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2019-10-13 23:15:26,174 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:15:26,183 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:15:26,194 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:15:26,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:15:26,232 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:15:26,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:15:26,233 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:15:26,233 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:15:26,233 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:15:26,234 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:15:26,234 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:15:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-13 23:15:26,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:15:26,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:26,280 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 23:15:26,283 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1817160733, now seen corresponding path program 1 times [2019-10-13 23:15:26,298 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:26,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914160622] [2019-10-13 23:15:26,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:26,645 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 23:15:26,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914160622] [2019-10-13 23:15:26,647 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:26,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:15:26,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86112359] [2019-10-13 23:15:26,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:15:26,655 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:26,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:15:26,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:15:26,680 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-13 23:15:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:26,732 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-10-13 23:15:26,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:15:26,735 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 23:15:26,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:26,748 INFO L225 Difference]: With dead ends: 224 [2019-10-13 23:15:26,748 INFO L226 Difference]: Without dead ends: 114 [2019-10-13 23:15:26,753 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 23:15:26,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-13 23:15:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-10-13 23:15:26,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-10-13 23:15:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-10-13 23:15:26,825 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 46 [2019-10-13 23:15:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:26,826 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-10-13 23:15:26,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:15:26,827 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-10-13 23:15:26,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:15:26,832 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:26,832 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:26,832 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:26,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1822053285, now seen corresponding path program 1 times [2019-10-13 23:15:26,834 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:26,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226378243] [2019-10-13 23:15:26,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:26,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:27,008 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 23:15:27,009 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226378243] [2019-10-13 23:15:27,009 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:27,009 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:15:27,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105362572] [2019-10-13 23:15:27,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:27,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:27,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:27,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:27,015 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 3 states. [2019-10-13 23:15:27,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:27,061 INFO L93 Difference]: Finished difference Result 178 states and 203 transitions. [2019-10-13 23:15:27,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:27,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 23:15:27,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:27,065 INFO L225 Difference]: With dead ends: 178 [2019-10-13 23:15:27,065 INFO L226 Difference]: Without dead ends: 106 [2019-10-13 23:15:27,067 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 23:15:27,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-13 23:15:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-13 23:15:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-13 23:15:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2019-10-13 23:15:27,090 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 47 [2019-10-13 23:15:27,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:27,090 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2019-10-13 23:15:27,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-10-13 23:15:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-13 23:15:27,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:27,099 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] [2019-10-13 23:15:27,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:27,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1084796694, now seen corresponding path program 1 times [2019-10-13 23:15:27,100 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:27,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645849042] [2019-10-13 23:15:27,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:27,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:27,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:27,304 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 23:15:27,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645849042] [2019-10-13 23:15:27,305 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:27,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:27,305 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236944024] [2019-10-13 23:15:27,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:27,306 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:27,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:27,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:27,306 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 7 states. [2019-10-13 23:15:27,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:27,620 INFO L93 Difference]: Finished difference Result 187 states and 214 transitions. [2019-10-13 23:15:27,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:15:27,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-13 23:15:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:27,623 INFO L225 Difference]: With dead ends: 187 [2019-10-13 23:15:27,624 INFO L226 Difference]: Without dead ends: 106 [2019-10-13 23:15:27,625 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 23:15:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-10-13 23:15:27,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-10-13 23:15:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-13 23:15:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-10-13 23:15:27,638 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 50 [2019-10-13 23:15:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:27,638 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-10-13 23:15:27,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-10-13 23:15:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-13 23:15:27,640 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:27,641 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:27,641 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:27,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:27,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1850856177, now seen corresponding path program 1 times [2019-10-13 23:15:27,641 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:27,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26563281] [2019-10-13 23:15:27,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:27,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:27,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:27,757 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 23:15:27,757 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26563281] [2019-10-13 23:15:27,757 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:27,757 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:15:27,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381454119] [2019-10-13 23:15:27,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:15:27,758 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:27,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:15:27,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:15:27,762 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-10-13 23:15:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:28,195 INFO L93 Difference]: Finished difference Result 277 states and 327 transitions. [2019-10-13 23:15:28,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:15:28,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-13 23:15:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:28,198 INFO L225 Difference]: With dead ends: 277 [2019-10-13 23:15:28,198 INFO L226 Difference]: Without dead ends: 196 [2019-10-13 23:15:28,199 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:15:28,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-13 23:15:28,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 179. [2019-10-13 23:15:28,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-13 23:15:28,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-10-13 23:15:28,236 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 63 [2019-10-13 23:15:28,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:28,236 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-10-13 23:15:28,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:15:28,236 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-10-13 23:15:28,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 23:15:28,238 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:28,238 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:28,238 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:28,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:28,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1596423314, now seen corresponding path program 1 times [2019-10-13 23:15:28,239 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:28,239 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464779049] [2019-10-13 23:15:28,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:28,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:28,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:28,371 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 23:15:28,371 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464779049] [2019-10-13 23:15:28,372 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:28,372 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:15:28,372 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223488962] [2019-10-13 23:15:28,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:15:28,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:28,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:15:28,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:15:28,375 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 6 states. [2019-10-13 23:15:28,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:28,637 INFO L93 Difference]: Finished difference Result 470 states and 538 transitions. [2019-10-13 23:15:28,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:15:28,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-10-13 23:15:28,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:28,650 INFO L225 Difference]: With dead ends: 470 [2019-10-13 23:15:28,650 INFO L226 Difference]: Without dead ends: 316 [2019-10-13 23:15:28,651 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 23:15:28,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-10-13 23:15:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 306. [2019-10-13 23:15:28,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-13 23:15:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 338 transitions. [2019-10-13 23:15:28,714 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 338 transitions. Word has length 72 [2019-10-13 23:15:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:28,715 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 338 transitions. [2019-10-13 23:15:28,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:15:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 338 transitions. [2019-10-13 23:15:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-13 23:15:28,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:28,717 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:28,717 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:28,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:28,718 INFO L82 PathProgramCache]: Analyzing trace with hash -721459112, now seen corresponding path program 1 times [2019-10-13 23:15:28,718 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:28,718 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996885866] [2019-10-13 23:15:28,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:28,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:28,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:28,823 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 23:15:28,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996885866] [2019-10-13 23:15:28,824 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:28,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:28,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257378513] [2019-10-13 23:15:28,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:28,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:28,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:28,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:28,826 INFO L87 Difference]: Start difference. First operand 306 states and 338 transitions. Second operand 7 states. [2019-10-13 23:15:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:29,399 INFO L93 Difference]: Finished difference Result 486 states and 559 transitions. [2019-10-13 23:15:29,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:15:29,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-10-13 23:15:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:29,403 INFO L225 Difference]: With dead ends: 486 [2019-10-13 23:15:29,403 INFO L226 Difference]: Without dead ends: 332 [2019-10-13 23:15:29,404 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 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 23:15:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-13 23:15:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 305. [2019-10-13 23:15:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-10-13 23:15:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 335 transitions. [2019-10-13 23:15:29,428 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 335 transitions. Word has length 75 [2019-10-13 23:15:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:29,429 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 335 transitions. [2019-10-13 23:15:29,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 335 transitions. [2019-10-13 23:15:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-13 23:15:29,430 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:29,430 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:29,430 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:29,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:29,431 INFO L82 PathProgramCache]: Analyzing trace with hash 913236934, now seen corresponding path program 1 times [2019-10-13 23:15:29,431 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:29,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367198731] [2019-10-13 23:15:29,431 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:29,432 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:29,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:29,486 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 23:15:29,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367198731] [2019-10-13 23:15:29,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:29,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:15:29,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651753532] [2019-10-13 23:15:29,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:29,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:29,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:29,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:29,489 INFO L87 Difference]: Start difference. First operand 305 states and 335 transitions. Second operand 3 states. [2019-10-13 23:15:29,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:29,529 INFO L93 Difference]: Finished difference Result 434 states and 489 transitions. [2019-10-13 23:15:29,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:29,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-10-13 23:15:29,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:29,533 INFO L225 Difference]: With dead ends: 434 [2019-10-13 23:15:29,533 INFO L226 Difference]: Without dead ends: 431 [2019-10-13 23:15:29,533 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 23:15:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-13 23:15:29,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 418. [2019-10-13 23:15:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-13 23:15:29,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 469 transitions. [2019-10-13 23:15:29,563 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 469 transitions. Word has length 75 [2019-10-13 23:15:29,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:29,563 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 469 transitions. [2019-10-13 23:15:29,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:29,564 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 469 transitions. [2019-10-13 23:15:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-13 23:15:29,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:29,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:15:29,567 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:29,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:29,567 INFO L82 PathProgramCache]: Analyzing trace with hash -636599952, now seen corresponding path program 1 times [2019-10-13 23:15:29,567 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:29,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233384453] [2019-10-13 23:15:29,568 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:29,568 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:29,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:15:29,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233384453] [2019-10-13 23:15:29,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43198548] [2019-10-13 23:15:29,657 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 23:15:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:29,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 23:15:29,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:29,992 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:15:30,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:15:30,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-13 23:15:30,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210402165] [2019-10-13 23:15:30,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:30,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:30,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:30,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:15:30,213 INFO L87 Difference]: Start difference. First operand 418 states and 469 transitions. Second operand 3 states. [2019-10-13 23:15:30,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:30,272 INFO L93 Difference]: Finished difference Result 768 states and 864 transitions. [2019-10-13 23:15:30,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:30,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-13 23:15:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:30,275 INFO L225 Difference]: With dead ends: 768 [2019-10-13 23:15:30,276 INFO L226 Difference]: Without dead ends: 375 [2019-10-13 23:15:30,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:15:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-13 23:15:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-13 23:15:30,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-13 23:15:30,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 409 transitions. [2019-10-13 23:15:30,301 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 409 transitions. Word has length 124 [2019-10-13 23:15:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:30,302 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 409 transitions. [2019-10-13 23:15:30,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:30,302 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 409 transitions. [2019-10-13 23:15:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 23:15:30,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:30,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:15:30,509 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:30,509 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:30,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash -810853913, now seen corresponding path program 1 times [2019-10-13 23:15:30,510 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:30,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681834793] [2019-10-13 23:15:30,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:30,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:30,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 23:15:30,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681834793] [2019-10-13 23:15:30,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70766572] [2019-10-13 23:15:30,829 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 23:15:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:31,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-13 23:15:31,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:31,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:31,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:31,321 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:32,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:32,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:32,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:32,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 23:15:32,951 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:15:32,952 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-13 23:15:32,952 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611377891] [2019-10-13 23:15:32,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:15:32,952 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:32,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:15:32,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 23:15:32,954 INFO L87 Difference]: Start difference. First operand 375 states and 409 transitions. Second operand 14 states. [2019-10-13 23:15:34,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:34,705 INFO L93 Difference]: Finished difference Result 887 states and 1013 transitions. [2019-10-13 23:15:34,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 23:15:34,706 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2019-10-13 23:15:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:34,711 INFO L225 Difference]: With dead ends: 887 [2019-10-13 23:15:34,711 INFO L226 Difference]: Without dead ends: 537 [2019-10-13 23:15:34,714 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 231 SyntacticMatches, 9 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=308, Invalid=2142, Unknown=0, NotChecked=0, Total=2450 [2019-10-13 23:15:34,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-13 23:15:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 455. [2019-10-13 23:15:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-13 23:15:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 500 transitions. [2019-10-13 23:15:34,749 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 500 transitions. Word has length 127 [2019-10-13 23:15:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:34,750 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 500 transitions. [2019-10-13 23:15:34,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:15:34,750 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 500 transitions. [2019-10-13 23:15:34,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 23:15:34,756 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:34,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:15:34,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:34,960 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:34,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1143164359, now seen corresponding path program 1 times [2019-10-13 23:15:34,962 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:34,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058794381] [2019-10-13 23:15:34,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:34,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:34,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:15:35,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058794381] [2019-10-13 23:15:35,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505475489] [2019-10-13 23:15:35,258 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 23:15:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:35,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-13 23:15:35,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:35,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:35,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:35,739 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:36,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,462 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:15:36,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [424829785] [2019-10-13 23:15:36,674 INFO L162 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-10-13 23:15:36,674 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:15:36,682 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:15:36,699 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:15:36,700 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:15:44,222 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:15:45,764 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:15:45,888 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:46,025 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:46,157 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:46,417 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:46,595 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:46,823 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:47,051 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:47,423 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:15:47,571 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:47,725 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:47,866 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:48,000 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:48,114 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:15:48,336 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:15:48,472 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:48,585 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:48,711 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:48,827 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:49,084 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:49,229 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:49,443 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:49,727 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:15:49,846 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:49,993 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:50,314 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:50,425 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:50,536 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:50,678 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:50,986 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:51,095 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:51,212 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:51,330 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:51,637 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:51,841 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:51,959 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:52,271 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:52,590 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:52,718 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:15:52,932 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,076 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,184 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,305 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,519 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:53,628 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,751 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,860 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:53,969 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:54,090 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:54,219 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,344 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,477 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:54,684 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:15:54,793 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:15:54,915 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:55,106 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:15:55,225 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:15:55,346 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:55,460 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:15:55,572 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:15:55,704 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:15:55,817 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:55,929 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,052 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,202 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,315 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,452 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,579 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,692 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,818 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:56,931 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:57,043 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:57,169 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:15:57,503 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:57,700 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,015 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,529 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:15:58,768 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,913 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:59,038 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:59,146 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:59,274 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:59,400 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:59,509 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:59,631 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:15:59,912 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:16:00,022 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:00,151 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:00,367 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:16:00,477 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:00,596 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:00,798 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 573 [2019-10-13 23:16:00,912 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:16:01,078 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:16:01,293 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 575 [2019-10-13 23:16:01,406 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:16:01,541 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:16:01,979 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:02,269 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:02,595 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 564