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_spec5_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:21:49,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:21:49,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:21:49,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:21:49,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:21:49,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:21:49,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:21:49,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:21:49,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:21:49,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:21:49,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:21:49,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:21:49,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:21:49,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:21:49,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:21:49,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:21:49,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:21:49,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:21:49,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:21:49,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:21:49,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:21:49,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:21:49,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:21:49,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:21:49,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:21:49,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:21:49,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:21:49,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:21:49,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:21:49,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:21:49,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:21:49,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:21:49,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:21:49,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:21:49,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:21:49,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:21:49,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:21:49,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:21:49,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:21:49,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:21:49,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:21:49,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:21:49,586 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:21:49,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:21:49,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:21:49,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:21:49,590 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:21:49,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:21:49,590 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:21:49,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:21:49,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:21:49,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:21:49,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:21:49,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:21:49,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:21:49,595 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:21:49,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:21:49,595 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:21:49,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:21:49,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:21:49,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:21:49,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:21:49,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:21:49,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:21:49,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:21:49,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:21:49,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:21:49,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:21:49,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:21:49,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:21:49,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:21:49,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:21:49,897 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:21:49,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:21:49,902 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:21:49,902 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:21:49,903 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2019-10-07 15:21:49,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b9d362e/ad87604435fb4d3695ee0b881aeb79d2/FLAG77436a650 [2019-10-07 15:21:50,493 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:21:50,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2019-10-07 15:21:50,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b9d362e/ad87604435fb4d3695ee0b881aeb79d2/FLAG77436a650 [2019-10-07 15:21:50,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b9d362e/ad87604435fb4d3695ee0b881aeb79d2 [2019-10-07 15:21:50,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:21:50,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:21:50,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:21:50,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:21:50,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:21:50,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:21:50" (1/1) ... [2019-10-07 15:21:50,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b043f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:50, skipping insertion in model container [2019-10-07 15:21:50,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:21:50" (1/1) ... [2019-10-07 15:21:50,865 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:21:50,918 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:21:51,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:21:51,378 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:21:51,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:21:51,491 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:21:51,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51 WrapperNode [2019-10-07 15:21:51,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:21:51,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:21:51,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:21:51,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:21:51,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... [2019-10-07 15:21:51,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... [2019-10-07 15:21:51,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... [2019-10-07 15:21:51,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... [2019-10-07 15:21:51,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... [2019-10-07 15:21:51,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... [2019-10-07 15:21:51,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... [2019-10-07 15:21:51,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:21:51,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:21:51,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:21:51,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:21:51,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:21:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:21:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:21:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:21:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:21:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:21:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:21:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:21:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:21:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-07 15:21:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:21:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:21:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:21:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:21:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:21:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:21:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-07 15:21:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:21:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:21:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:21:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:21:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:21:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:21:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:21:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:21:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:21:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:21:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:21:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:21:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:21:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:21:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:21:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:21:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:21:51,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:21:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:21:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:21:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:21:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:21:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:21:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:21:51,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:21:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:21:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:21:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:21:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:21:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:21:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:21:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:21:51,669 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-07 15:21:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:21:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:21:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:21:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:21:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:21:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:21:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:21:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-07 15:21:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:21:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:21:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:21:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:21:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:21:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:21:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:21:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:21:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:21:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:21:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:21:51,673 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:21:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:21:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:21:51,674 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:21:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:21:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:21:51,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:21:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:21:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:21:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:21:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:21:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:21:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:21:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:21:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:21:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:21:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:21:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:21:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:21:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:21:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:21:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:21:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:21:53,247 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:21:53,247 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:21:53,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:21:53 BoogieIcfgContainer [2019-10-07 15:21:53,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:21:53,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:21:53,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:21:53,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:21:53,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:21:50" (1/3) ... [2019-10-07 15:21:53,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2855110e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:21:53, skipping insertion in model container [2019-10-07 15:21:53,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:21:51" (2/3) ... [2019-10-07 15:21:53,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2855110e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:21:53, skipping insertion in model container [2019-10-07 15:21:53,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:21:53" (3/3) ... [2019-10-07 15:21:53,260 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2019-10-07 15:21:53,271 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:21:53,282 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:21:53,294 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:21:53,331 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:21:53,331 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:21:53,331 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:21:53,331 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:21:53,332 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:21:53,332 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:21:53,333 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:21:53,333 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:21:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-10-07 15:21:53,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:21:53,381 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:53,383 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:53,387 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:53,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1483690071, now seen corresponding path program 1 times [2019-10-07 15:21:53,404 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:53,405 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:53,405 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:53,405 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:53,780 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:53,780 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:53,781 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:21:53,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:21:53,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:21:53,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:21:53,804 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 2 states. [2019-10-07 15:21:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:53,858 INFO L93 Difference]: Finished difference Result 252 states and 309 transitions. [2019-10-07 15:21:53,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:21:53,860 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:21:53,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:53,875 INFO L225 Difference]: With dead ends: 252 [2019-10-07 15:21:53,876 INFO L226 Difference]: Without dead ends: 128 [2019-10-07 15:21:53,881 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:21:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-10-07 15:21:53,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-10-07 15:21:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-07 15:21:53,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2019-10-07 15:21:53,941 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 52 [2019-10-07 15:21:53,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:53,942 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2019-10-07 15:21:53,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:21:53,942 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2019-10-07 15:21:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 15:21:53,947 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:53,947 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:53,947 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:53,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:53,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1514681282, now seen corresponding path program 1 times [2019-10-07 15:21:53,948 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:53,949 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:53,949 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:53,949 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:53,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:54,123 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:54,123 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:54,124 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:21:54,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:21:54,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:21:54,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:21:54,128 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2019-10-07 15:21:54,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:54,172 INFO L93 Difference]: Finished difference Result 203 states and 237 transitions. [2019-10-07 15:21:54,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:21:54,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-07 15:21:54,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:54,180 INFO L225 Difference]: With dead ends: 203 [2019-10-07 15:21:54,180 INFO L226 Difference]: Without dead ends: 120 [2019-10-07 15:21:54,185 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:21:54,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-10-07 15:21:54,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-10-07 15:21:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-10-07 15:21:54,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2019-10-07 15:21:54,215 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 53 [2019-10-07 15:21:54,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:54,215 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2019-10-07 15:21:54,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:21:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2019-10-07 15:21:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-07 15:21:54,225 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:54,226 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:54,226 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:54,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:54,226 INFO L82 PathProgramCache]: Analyzing trace with hash 925546405, now seen corresponding path program 1 times [2019-10-07 15:21:54,227 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:54,227 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:54,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:54,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:54,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:54,454 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:54,454 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:54,454 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:21:54,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:21:54,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:21:54,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:21:54,456 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 7 states. [2019-10-07 15:21:54,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:54,910 INFO L93 Difference]: Finished difference Result 359 states and 431 transitions. [2019-10-07 15:21:54,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:21:54,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-07 15:21:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:54,915 INFO L225 Difference]: With dead ends: 359 [2019-10-07 15:21:54,915 INFO L226 Difference]: Without dead ends: 264 [2019-10-07 15:21:54,916 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:21:54,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-10-07 15:21:54,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 256. [2019-10-07 15:21:54,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2019-10-07 15:21:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 307 transitions. [2019-10-07 15:21:54,952 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 307 transitions. Word has length 56 [2019-10-07 15:21:54,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:54,952 INFO L462 AbstractCegarLoop]: Abstraction has 256 states and 307 transitions. [2019-10-07 15:21:54,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:21:54,952 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 307 transitions. [2019-10-07 15:21:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-07 15:21:54,954 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:54,954 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:54,955 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:54,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:54,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1299137629, now seen corresponding path program 1 times [2019-10-07 15:21:54,955 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:54,956 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:54,956 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:54,956 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:55,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:21:55,052 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:55,052 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:55,052 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:21:55,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:21:55,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:21:55,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:21:55,054 INFO L87 Difference]: Start difference. First operand 256 states and 307 transitions. Second operand 7 states. [2019-10-07 15:21:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:55,719 INFO L93 Difference]: Finished difference Result 668 states and 864 transitions. [2019-10-07 15:21:55,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:21:55,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-10-07 15:21:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:55,726 INFO L225 Difference]: With dead ends: 668 [2019-10-07 15:21:55,726 INFO L226 Difference]: Without dead ends: 437 [2019-10-07 15:21:55,728 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:21:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-10-07 15:21:55,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 387. [2019-10-07 15:21:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2019-10-07 15:21:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 458 transitions. [2019-10-07 15:21:55,779 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 458 transitions. Word has length 61 [2019-10-07 15:21:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:55,780 INFO L462 AbstractCegarLoop]: Abstraction has 387 states and 458 transitions. [2019-10-07 15:21:55,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:21:55,781 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 458 transitions. [2019-10-07 15:21:55,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-07 15:21:55,789 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:55,789 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:55,789 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:55,790 INFO L82 PathProgramCache]: Analyzing trace with hash 62856739, now seen corresponding path program 1 times [2019-10-07 15:21:55,790 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:55,790 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:55,790 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:55,791 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:56,074 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:56,074 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:56,074 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:21:56,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:21:56,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:21:56,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:21:56,076 INFO L87 Difference]: Start difference. First operand 387 states and 458 transitions. Second operand 12 states. [2019-10-07 15:21:56,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:56,950 INFO L93 Difference]: Finished difference Result 1149 states and 1406 transitions. [2019-10-07 15:21:56,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:21:56,950 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2019-10-07 15:21:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:56,956 INFO L225 Difference]: With dead ends: 1149 [2019-10-07 15:21:56,956 INFO L226 Difference]: Without dead ends: 787 [2019-10-07 15:21:56,958 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:21:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-07 15:21:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 765. [2019-10-07 15:21:57,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2019-10-07 15:21:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 926 transitions. [2019-10-07 15:21:57,025 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 926 transitions. Word has length 91 [2019-10-07 15:21:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:57,025 INFO L462 AbstractCegarLoop]: Abstraction has 765 states and 926 transitions. [2019-10-07 15:21:57,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:21:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 926 transitions. [2019-10-07 15:21:57,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-07 15:21:57,029 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:57,030 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:57,030 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:57,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:57,030 INFO L82 PathProgramCache]: Analyzing trace with hash -695176965, now seen corresponding path program 1 times [2019-10-07 15:21:57,031 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:57,031 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:57,031 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:57,031 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:57,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:21:57,251 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:57,251 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:21:57,251 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 15:21:57,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 15:21:57,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 15:21:57,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:21:57,253 INFO L87 Difference]: Start difference. First operand 765 states and 926 transitions. Second operand 9 states. [2019-10-07 15:21:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:21:58,176 INFO L93 Difference]: Finished difference Result 2465 states and 3093 transitions. [2019-10-07 15:21:58,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:21:58,177 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2019-10-07 15:21:58,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:21:58,188 INFO L225 Difference]: With dead ends: 2465 [2019-10-07 15:21:58,189 INFO L226 Difference]: Without dead ends: 1884 [2019-10-07 15:21:58,192 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-07 15:21:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2019-10-07 15:21:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1610. [2019-10-07 15:21:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1610 states. [2019-10-07 15:21:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 1968 transitions. [2019-10-07 15:21:58,327 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 1968 transitions. Word has length 94 [2019-10-07 15:21:58,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:21:58,327 INFO L462 AbstractCegarLoop]: Abstraction has 1610 states and 1968 transitions. [2019-10-07 15:21:58,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 15:21:58,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1968 transitions. [2019-10-07 15:21:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 15:21:58,330 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:21:58,331 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:21:58,331 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:21:58,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:21:58,332 INFO L82 PathProgramCache]: Analyzing trace with hash -372636459, now seen corresponding path program 1 times [2019-10-07 15:21:58,332 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:21:58,332 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:58,332 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:58,332 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:21:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:21:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:21:58,490 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:21:58,490 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:21:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:21:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:21:58,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 15:21:58,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:21:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:21:58,864 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:21:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:21:59,319 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:21:59,348 INFO L162 IcfgInterpreter]: Started Sifa with 107 locations of interest [2019-10-07 15:21:59,348 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:21:59,354 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:21:59,361 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:21:59,362 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:22:06,880 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:22:08,847 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:22:09,021 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:09,152 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:09,276 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:22:09,592 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:09,866 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:10,084 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:10,287 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:10,634 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:22:10,757 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:10,978 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:11,109 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:11,222 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:11,355 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:22:11,365 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:22:11,705 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-07 15:22:11,706 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-07 15:22:11,807 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:11,924 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:12,096 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:12,438 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:12,685 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:12,813 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:13,103 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-07 15:22:13,222 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:13,386 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:13,516 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:13,625 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:13,748 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:13,851 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:13,962 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:14,108 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:14,438 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:14,647 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:14,774 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:14,971 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:15,090 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:15,298 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:15,444 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:15,754 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:16,080 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:16,282 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 15:22:16,403 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:16,553 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:16,662 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:16,877 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:17,172 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:17,282 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:17,407 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:17,515 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:17,625 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:17,742 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:17,919 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:18,041 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:18,163 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:18,369 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:18,478 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:18,609 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:18,718 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:18,829 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:18,968 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:19,083 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:22:19,195 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:22:19,320 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:22:19,433 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:19,546 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:19,718 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:19,849 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:19,964 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:20,088 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:20,218 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:20,331 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:20,576 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:20,691 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:20,804 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:20,933 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:21,168 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:21,278 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:21,399 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:21,609 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:21,717 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:21,843 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:21,951 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:22,060 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:22,177 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:22,391 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:22,501 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:22,626 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:22,847 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:22,969 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:23,102 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:23,298 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:23,409 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:23,529 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:23,643 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:22:23,762 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:22:23,891 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 15:22:24,007 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:24,120 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:24,246 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:24,587 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:24,703 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:24,822 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,019 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:25,130 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,261 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,370 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,478 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,599 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:25,819 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:25,928 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,049 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,250 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:26,359 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,480 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,590 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,699 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:26,817 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:27,027 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:27,138 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:27,262 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:27,482 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:27,592 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:27,715 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:27,824 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:27,935 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:28,069 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:28,268 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 566 [2019-10-07 15:22:28,382 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:28,507 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:28,708 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 568 [2019-10-07 15:22:28,822 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:28,952 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:29,152 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 568 [2019-10-07 15:22:29,264 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:29,388 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:29,760 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:22:29,871 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:29,995 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:30,201 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:30,310 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:30,432 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:30,690 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:30,805 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:30,927 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,036 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,145 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,264 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:31,395 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:31,507 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:31,631 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:31,830 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:31,950 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:32,073 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:32,272 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:32,382 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:32,506 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:32,700 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-07 15:22:32,812 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:32,936 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:33,154 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:33,265 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,385 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,582 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:33,691 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,814 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:33,923 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,038 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,158 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:34,378 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:34,490 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:34,617 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:35,051 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:35,175 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:35,302 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:35,518 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:35,629 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,749 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:35,946 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:36,056 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,176 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,388 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:36,497 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:36,617 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:37,083 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:22:37,319 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:37,463 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:37,572 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:37,681 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:37,799 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:38,011 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:38,126 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:38,251 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:38,369 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:38,480 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:38,605 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:38,804 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:22:38,916 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:39,037 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:39,253 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:22:39,363 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:22:39,493 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:39,683 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:22:39,794 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:39,918 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:22:39,921 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-10-07 15:22:40,230 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:40,558 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:40,739 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 548 [2019-10-07 15:22:40,963 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:41,276 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:41,281 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-10-07 15:22:41,597 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:22:41,812 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:22:41,936 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:42,265 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:22:42,469 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 15:22:42,594 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:22:42,746 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:43,027 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 15:22:43,418 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 580 DAG size of output: 580 [2019-10-07 15:22:43,802 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-10-07 15:22:44,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:22:44,095 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:22:44,106 INFO L168 Benchmark]: Toolchain (without parser) took 53256.75 ms. Allocated memory was 139.5 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 103.0 MB in the beginning and 480.1 MB in the end (delta: -377.2 MB). Peak memory consumption was 643.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:44,109 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:22:44,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.09 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 170.4 MB in the end (delta: -67.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:44,115 INFO L168 Benchmark]: Boogie Preprocessor took 86.26 ms. Allocated memory is still 202.9 MB. Free memory was 170.4 MB in the beginning and 165.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:44,115 INFO L168 Benchmark]: RCFGBuilder took 1671.12 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 145.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:44,116 INFO L168 Benchmark]: TraceAbstraction took 50853.12 ms. Allocated memory was 236.5 MB in the beginning and 1.2 GB in the end (delta: 923.3 MB). Free memory was 145.3 MB in the beginning and 480.1 MB in the end (delta: -334.9 MB). Peak memory consumption was 588.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:22:44,121 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 642.09 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 102.7 MB in the beginning and 170.4 MB in the end (delta: -67.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.26 ms. Allocated memory is still 202.9 MB. Free memory was 170.4 MB in the beginning and 165.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1671.12 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 145.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50853.12 ms. Allocated memory was 236.5 MB in the beginning and 1.2 GB in the end (delta: 923.3 MB). Free memory was 145.3 MB in the beginning and 480.1 MB in the end (delta: -334.9 MB). Peak memory consumption was 588.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...