java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:19:27,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:19:27,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:19:27,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:19:27,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:19:27,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:19:27,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:19:27,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:19:27,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:19:27,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:19:27,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:19:27,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:19:27,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:19:27,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:19:27,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:19:27,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:19:27,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:19:27,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:19:27,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:19:27,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:19:27,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:19:27,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:19:27,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:19:27,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:19:27,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:19:27,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:19:27,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:19:27,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:19:27,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:19:27,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:19:27,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:19:27,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:19:27,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:19:27,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:19:27,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:19:27,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:19:27,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:19:27,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:19:27,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:19:27,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:19:27,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:19:27,648 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 15:19:27,671 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:19:27,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:19:27,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:19:27,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:19:27,673 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:19:27,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:19:27,674 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:19:27,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:19:27,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:19:27,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:19:27,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:19:27,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:19:27,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:19:27,675 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:19:27,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:19:27,676 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:19:27,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:19:27,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:19:27,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:19:27,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:19:27,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:19:27,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:19:27,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:19:27,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:19:27,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:19:27,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:19:27,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:19:27,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:19:27,679 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 15:19:27,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:19:27,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:19:27,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:19:27,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:19:27,989 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:19:27,990 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-07 15:19:28,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a6802f7/bb4d657f9b594970b3b7853627d052fb/FLAGd34a877f5 [2019-10-07 15:19:28,628 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:19:28,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product61.cil.c [2019-10-07 15:19:28,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a6802f7/bb4d657f9b594970b3b7853627d052fb/FLAGd34a877f5 [2019-10-07 15:19:28,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a6802f7/bb4d657f9b594970b3b7853627d052fb [2019-10-07 15:19:28,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:19:28,936 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:19:28,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:19:28,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:19:28,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:19:28,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:19:28" (1/1) ... [2019-10-07 15:19:28,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d974c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:28, skipping insertion in model container [2019-10-07 15:19:28,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:19:28" (1/1) ... [2019-10-07 15:19:28,952 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:19:29,006 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:19:29,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:19:29,488 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:19:29,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:19:29,679 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:19:29,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29 WrapperNode [2019-10-07 15:19:29,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:19:29,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:19:29,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:19:29,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:19:29,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (1/1) ... [2019-10-07 15:19:29,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (1/1) ... [2019-10-07 15:19:29,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (1/1) ... [2019-10-07 15:19:29,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (1/1) ... [2019-10-07 15:19:29,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (1/1) ... [2019-10-07 15:19:29,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (1/1) ... [2019-10-07 15:19:29,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (1/1) ... [2019-10-07 15:19:29,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:19:29,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:19:29,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:19:29,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:19:29,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (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 15:19:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:19:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:19:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:19:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:19:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:19:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:19:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:19:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:19:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:19:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:19:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:19:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:19:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:19:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:19:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:19:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:19:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:19:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:19:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:19:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:19:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:19:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:19:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:19:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:19:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:19:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:19:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:19:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:19:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:19:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:19:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-07 15:19:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:19:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:19:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:19:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:19:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:19:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:19:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:19:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:19:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:19:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:19:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:19:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:19:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:19:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:19:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:19:29,876 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:19:29,876 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:19:29,876 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:19:29,876 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:19:29,876 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:19:29,877 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:19:29,877 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:19:29,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-07 15:19:29,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:19:29,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:19:29,877 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:19:29,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:19:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:19:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-07 15:19:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:19:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:19:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:19:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:19:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:19:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:19:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:19:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:19:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:19:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:19:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:19:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:19:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:19:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:19:29,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:19:29,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:19:29,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:19:29,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:19:29,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:19:29,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:19:29,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:19:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:19:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:19:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:19:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:19:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:19:29,885 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:19:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:19:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:19:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:19:29,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:19:31,523 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:19:31,523 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:19:31,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:19:31 BoogieIcfgContainer [2019-10-07 15:19:31,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:19:31,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:19:31,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:19:31,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:19:31,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:19:28" (1/3) ... [2019-10-07 15:19:31,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ea4e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:19:31, skipping insertion in model container [2019-10-07 15:19:31,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:19:29" (2/3) ... [2019-10-07 15:19:31,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ea4e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:19:31, skipping insertion in model container [2019-10-07 15:19:31,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:19:31" (3/3) ... [2019-10-07 15:19:31,533 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2019-10-07 15:19:31,543 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:19:31,552 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:19:31,563 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:19:31,600 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:19:31,600 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:19:31,600 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:19:31,601 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:19:31,601 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:19:31,601 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:19:31,602 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:19:31,602 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:19:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-10-07 15:19:31,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-07 15:19:31,649 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:31,650 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:31,654 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:31,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1507052969, now seen corresponding path program 1 times [2019-10-07 15:19:31,670 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:31,670 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:31,671 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:31,671 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:31,992 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:31,993 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:31,993 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:19:31,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:19:32,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:19:32,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:19:32,011 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2019-10-07 15:19:32,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:32,061 INFO L93 Difference]: Finished difference Result 257 states and 310 transitions. [2019-10-07 15:19:32,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:19:32,063 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-07 15:19:32,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:32,076 INFO L225 Difference]: With dead ends: 257 [2019-10-07 15:19:32,077 INFO L226 Difference]: Without dead ends: 129 [2019-10-07 15:19:32,082 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 15:19:32,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-07 15:19:32,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-10-07 15:19:32,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-07 15:19:32,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-10-07 15:19:32,177 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 42 [2019-10-07 15:19:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:32,179 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-10-07 15:19:32,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:19:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-10-07 15:19:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-07 15:19:32,183 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:32,183 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:32,183 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1923432424, now seen corresponding path program 1 times [2019-10-07 15:19:32,184 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:32,184 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:32,185 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:32,185 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:32,350 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:32,350 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:32,351 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:19:32,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:19:32,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:19:32,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:19:32,356 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 3 states. [2019-10-07 15:19:32,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:32,403 INFO L93 Difference]: Finished difference Result 215 states and 249 transitions. [2019-10-07 15:19:32,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:19:32,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-07 15:19:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:32,407 INFO L225 Difference]: With dead ends: 215 [2019-10-07 15:19:32,407 INFO L226 Difference]: Without dead ends: 121 [2019-10-07 15:19:32,409 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 15:19:32,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-07 15:19:32,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-07 15:19:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-07 15:19:32,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-10-07 15:19:32,431 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 43 [2019-10-07 15:19:32,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:32,432 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-10-07 15:19:32,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:19:32,432 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-10-07 15:19:32,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-07 15:19:32,436 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:32,436 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:32,437 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:32,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:32,438 INFO L82 PathProgramCache]: Analyzing trace with hash 905106011, now seen corresponding path program 1 times [2019-10-07 15:19:32,438 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:32,439 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:32,439 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:32,439 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:32,602 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:32,603 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:32,603 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:19:32,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:19:32,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:19:32,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:19:32,604 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 7 states. [2019-10-07 15:19:32,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:32,922 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2019-10-07 15:19:32,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:19:32,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-10-07 15:19:32,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:32,925 INFO L225 Difference]: With dead ends: 220 [2019-10-07 15:19:32,925 INFO L226 Difference]: Without dead ends: 121 [2019-10-07 15:19:32,927 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 15:19:32,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-07 15:19:32,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-07 15:19:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-07 15:19:32,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2019-10-07 15:19:32,940 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 45 [2019-10-07 15:19:32,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:32,941 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2019-10-07 15:19:32,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:19:32,941 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2019-10-07 15:19:32,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-07 15:19:32,943 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:32,944 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:32,944 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:32,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:32,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1684050227, now seen corresponding path program 1 times [2019-10-07 15:19:32,945 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:32,945 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:32,945 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:32,945 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:32,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:33,083 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:33,084 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:33,084 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 15:19:33,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 15:19:33,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 15:19:33,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 15:19:33,085 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand 5 states. [2019-10-07 15:19:33,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:33,605 INFO L93 Difference]: Finished difference Result 318 states and 372 transitions. [2019-10-07 15:19:33,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:19:33,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-10-07 15:19:33,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:33,608 INFO L225 Difference]: With dead ends: 318 [2019-10-07 15:19:33,608 INFO L226 Difference]: Without dead ends: 219 [2019-10-07 15:19:33,609 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:19:33,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-07 15:19:33,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 204. [2019-10-07 15:19:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-10-07 15:19:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2019-10-07 15:19:33,645 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 62 [2019-10-07 15:19:33,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:33,645 INFO L462 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2019-10-07 15:19:33,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 15:19:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2019-10-07 15:19:33,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-07 15:19:33,647 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:33,648 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:33,648 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:33,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:33,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1105839931, now seen corresponding path program 1 times [2019-10-07 15:19:33,649 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:33,649 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:33,649 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:33,649 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:33,793 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:33,794 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:33,794 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:19:33,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:19:33,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:19:33,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:19:33,797 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 10 states. [2019-10-07 15:19:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:34,314 INFO L93 Difference]: Finished difference Result 598 states and 677 transitions. [2019-10-07 15:19:34,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:19:34,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2019-10-07 15:19:34,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:34,320 INFO L225 Difference]: With dead ends: 598 [2019-10-07 15:19:34,320 INFO L226 Difference]: Without dead ends: 416 [2019-10-07 15:19:34,321 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:19:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-07 15:19:34,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 402. [2019-10-07 15:19:34,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-07 15:19:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 442 transitions. [2019-10-07 15:19:34,367 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 442 transitions. Word has length 72 [2019-10-07 15:19:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:34,369 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 442 transitions. [2019-10-07 15:19:34,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:19:34,369 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 442 transitions. [2019-10-07 15:19:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 15:19:34,378 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:34,378 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:34,379 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:34,379 INFO L82 PathProgramCache]: Analyzing trace with hash 494115634, now seen corresponding path program 1 times [2019-10-07 15:19:34,379 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:34,379 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:34,380 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:34,380 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:19:34,601 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:34,601 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:19:34,602 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 15:19:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:34,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 15:19:34,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:19:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:34,924 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:19:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:19:35,294 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:19:35,294 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-07 15:19:35,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:19:35,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:19:35,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:19:35,297 INFO L87 Difference]: Start difference. First operand 402 states and 442 transitions. Second operand 3 states. [2019-10-07 15:19:35,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:35,377 INFO L93 Difference]: Finished difference Result 785 states and 864 transitions. [2019-10-07 15:19:35,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:19:35,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-07 15:19:35,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:35,380 INFO L225 Difference]: With dead ends: 785 [2019-10-07 15:19:35,381 INFO L226 Difference]: Without dead ends: 405 [2019-10-07 15:19:35,382 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-07 15:19:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-07 15:19:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 377. [2019-10-07 15:19:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-07 15:19:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 400 transitions. [2019-10-07 15:19:35,427 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 400 transitions. Word has length 138 [2019-10-07 15:19:35,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:35,430 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 400 transitions. [2019-10-07 15:19:35,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:19:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 400 transitions. [2019-10-07 15:19:35,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 15:19:35,435 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:35,436 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:35,642 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:35,643 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:35,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1457497724, now seen corresponding path program 1 times [2019-10-07 15:19:35,643 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:35,644 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:35,644 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:35,644 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 15:19:35,759 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:35,759 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:19:35,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:35,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 15:19:35,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:19:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:19:36,000 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:19:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-07 15:19:36,229 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 15:19:36,229 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-07 15:19:36,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:19:36,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:19:36,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-07 15:19:36,231 INFO L87 Difference]: Start difference. First operand 377 states and 400 transitions. Second operand 7 states. [2019-10-07 15:19:36,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:36,435 INFO L93 Difference]: Finished difference Result 386 states and 409 transitions. [2019-10-07 15:19:36,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:19:36,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2019-10-07 15:19:36,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:36,442 INFO L225 Difference]: With dead ends: 386 [2019-10-07 15:19:36,442 INFO L226 Difference]: Without dead ends: 383 [2019-10-07 15:19:36,442 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:19:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-10-07 15:19:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 377. [2019-10-07 15:19:36,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-07 15:19:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 399 transitions. [2019-10-07 15:19:36,465 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 399 transitions. Word has length 125 [2019-10-07 15:19:36,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:36,466 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 399 transitions. [2019-10-07 15:19:36,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:19:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 399 transitions. [2019-10-07 15:19:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 15:19:36,469 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:36,469 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:36,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:36,682 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:36,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:36,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1141164862, now seen corresponding path program 2 times [2019-10-07 15:19:36,683 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:36,683 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:36,683 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:36,683 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:36,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 15:19:36,933 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:36,933 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:19:36,933 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:19:36,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:19:36,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:19:36,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:19:36,935 INFO L87 Difference]: Start difference. First operand 377 states and 399 transitions. Second operand 14 states. [2019-10-07 15:19:37,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:37,418 INFO L93 Difference]: Finished difference Result 675 states and 747 transitions. [2019-10-07 15:19:37,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 15:19:37,419 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2019-10-07 15:19:37,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:37,423 INFO L225 Difference]: With dead ends: 675 [2019-10-07 15:19:37,423 INFO L226 Difference]: Without dead ends: 493 [2019-10-07 15:19:37,424 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-07 15:19:37,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-07 15:19:37,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 422. [2019-10-07 15:19:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-07 15:19:37,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 453 transitions. [2019-10-07 15:19:37,456 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 453 transitions. Word has length 138 [2019-10-07 15:19:37,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:37,458 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 453 transitions. [2019-10-07 15:19:37,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:19:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 453 transitions. [2019-10-07 15:19:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-07 15:19:37,465 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:37,465 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:19:37,465 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:37,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1931488706, now seen corresponding path program 1 times [2019-10-07 15:19:37,466 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:37,466 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:37,466 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:37,467 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:19:37,790 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:37,790 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:19:37,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:38,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-07 15:19:38,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:19:38,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:38,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:38,441 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:19:38,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:39,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:39,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:40,244 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2019-10-07 15:19:40,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:40,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:40,531 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:19:40,532 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:19:40,532 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15, 12] total 35 [2019-10-07 15:19:40,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:19:40,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:19:40,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1021, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 15:19:40,534 INFO L87 Difference]: Start difference. First operand 422 states and 453 transitions. Second operand 12 states. [2019-10-07 15:19:42,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:19:42,477 INFO L93 Difference]: Finished difference Result 949 states and 1086 transitions. [2019-10-07 15:19:42,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-07 15:19:42,478 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 144 [2019-10-07 15:19:42,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:19:42,481 INFO L225 Difference]: With dead ends: 949 [2019-10-07 15:19:42,482 INFO L226 Difference]: Without dead ends: 549 [2019-10-07 15:19:42,485 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 264 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=407, Invalid=2143, Unknown=0, NotChecked=0, Total=2550 [2019-10-07 15:19:42,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2019-10-07 15:19:42,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 504. [2019-10-07 15:19:42,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2019-10-07 15:19:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 553 transitions. [2019-10-07 15:19:42,515 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 553 transitions. Word has length 144 [2019-10-07 15:19:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:19:42,515 INFO L462 AbstractCegarLoop]: Abstraction has 504 states and 553 transitions. [2019-10-07 15:19:42,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:19:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 553 transitions. [2019-10-07 15:19:42,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 15:19:42,518 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:19:42,519 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:19:42,723 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:42,724 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:19:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:19:42,724 INFO L82 PathProgramCache]: Analyzing trace with hash -559747437, now seen corresponding path program 1 times [2019-10-07 15:19:42,724 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:19:42,724 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:42,724 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:42,725 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:19:42,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:19:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 15:19:42,974 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:19:42,974 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:19:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:19:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:19:43,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 49 conjunts are in the unsatisfiable core [2019-10-07 15:19:43,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:19:43,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:19:43,512 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:19:43,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:43,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:43,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:44,068 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:44,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:44,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:44,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:19:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 15:19:44,314 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:19:44,357 INFO L162 IcfgInterpreter]: Started Sifa with 113 locations of interest [2019-10-07 15:19:44,358 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:19:44,363 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:19:44,371 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:19:44,371 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:19:54,059 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 15:19:55,856 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:19:55,979 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:19:56,159 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:19:56,280 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-07 15:19:56,499 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:56,736 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:56,959 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:57,191 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:57,550 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-07 15:19:57,687 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:57,889 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:58,017 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:58,169 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:58,331 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-07 15:19:58,339 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-07 15:19:58,656 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-07 15:19:58,657 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-07 15:19:58,758 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:19:58,862 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:19:58,993 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:19:59,104 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:19:59,218 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:19:59,374 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:19:59,501 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:19:59,716 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:00,034 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 542 [2019-10-07 15:20:00,140 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:00,262 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:00,375 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:00,478 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:00,595 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:00,724 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:00,936 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:01,272 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:01,388 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:01,655 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:01,966 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:02,172 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:02,311 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:02,617 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:02,822 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:02,935 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:03,050 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-07 15:20:03,263 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:03,385 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:03,505 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:03,641 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:03,835 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:03,966 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:04,083 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:04,190 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:04,294 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:04,406 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:04,533 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:04,641 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:04,772 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:04,966 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:05,072 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:05,192 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:05,373 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:05,484 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:05,601 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:05,748 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 15:20:05,856 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 15:20:05,979 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 15:20:06,091 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:06,200 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:06,321 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:06,517 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:06,706 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:06,836 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:06,953 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:07,063 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:07,235 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:07,345 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:07,454 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:07,572 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:07,784 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:07,903 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:08,028 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:08,357 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:08,462 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:08,577 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:08,682 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:08,786 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:08,899 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:09,022 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:09,142 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:09,269 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:09,625 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:09,733 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:09,857 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:10,041 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:10,147 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:10,269 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:10,501 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 563 DAG size of output: 554 [2019-10-07 15:20:10,613 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:10,736 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:10,921 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 556 [2019-10-07 15:20:11,029 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:11,150 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:11,353 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:11,463 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:11,582 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:11,782 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:11,886 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:12,007 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:12,112 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:12,218 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:12,330 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:12,622 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:12,727 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:12,842 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:13,032 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:13,137 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:13,257 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:13,362 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:13,467 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:13,584 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:13,820 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:14,094 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:14,303 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:14,496 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:14,602 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:14,720 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:14,920 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:15,025 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:15,142 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:15,344 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:15,451 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:15,566 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:15,671 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:15,782 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:15,894 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:16,090 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:16,195 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:16,315 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:16,429 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:16,537 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:16,655 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:16,840 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:16,946 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:17,061 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:17,244 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:17,350 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:17,472 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:17,682 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:17,789 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:17,907 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:18,097 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:18,203 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:18,322 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:18,429 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:18,534 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:18,650 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:18,773 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:18,882 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,001 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,113 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,220 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,338 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,446 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,554 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,669 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:19,856 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 563 DAG size of output: 556 [2019-10-07 15:20:19,972 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:20,089 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:20,284 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 558 [2019-10-07 15:20:20,391 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:20,509 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:20,713 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 563 [2019-10-07 15:20:20,823 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:20,948 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:21,149 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 563 [2019-10-07 15:20:21,257 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:21,376 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:21,573 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:21,677 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:21,790 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:21,984 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:22,092 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:22,205 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:22,317 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:22,422 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:22,534 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:22,657 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:22,763 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:22,880 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:23,069 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:23,176 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:23,296 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:23,479 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-07 15:20:23,585 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 15:20:23,699 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:23,883 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 563 DAG size of output: 556 [2019-10-07 15:20:23,992 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:24,118 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:24,311 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 558 [2019-10-07 15:20:24,418 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:24,536 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 15:20:24,742 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:24,849 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:24,963 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:25,157 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-07 15:20:25,267 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:25,381 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:25,384 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 544 for LOIs [2019-10-07 15:20:25,485 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:20:25,589 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:20:25,719 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:25,724 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 542 for LOIs [2019-10-07 15:20:26,032 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:20:26,350 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:26,660 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:20:26,764 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 551 [2019-10-07 15:20:26,978 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 15:20:27,131 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:20:27,402 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 15:20:27,725 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 568 [2019-10-07 15:20:28,088 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 571 [2019-10-07 15:20:28,388 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:20:28,389 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.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 15:20:28,398 INFO L168 Benchmark]: Toolchain (without parser) took 59461.75 ms. Allocated memory was 145.8 MB in the beginning and 1.1 GB in the end (delta: 986.2 MB). Free memory was 102.0 MB in the beginning and 316.5 MB in the end (delta: -214.5 MB). Peak memory consumption was 771.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:28,398 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:20:28,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.08 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 171.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:28,399 INFO L168 Benchmark]: Boogie Preprocessor took 109.27 ms. Allocated memory is still 203.4 MB. Free memory was 171.4 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:28,400 INFO L168 Benchmark]: RCFGBuilder took 1735.29 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.3 MB in the beginning and 146.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:28,400 INFO L168 Benchmark]: TraceAbstraction took 56869.56 ms. Allocated memory was 237.0 MB in the beginning and 1.1 GB in the end (delta: 895.0 MB). Free memory was 144.9 MB in the beginning and 316.5 MB in the end (delta: -171.6 MB). Peak memory consumption was 723.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:28,402 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 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.08 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 171.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.27 ms. Allocated memory is still 203.4 MB. Free memory was 171.4 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1735.29 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.3 MB in the beginning and 146.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 56869.56 ms. Allocated memory was 237.0 MB in the beginning and 1.1 GB in the end (delta: 895.0 MB). Free memory was 144.9 MB in the beginning and 316.5 MB in the end (delta: -171.6 MB). Peak memory consumption was 723.4 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...