/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:35:09,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:35:09,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:35:09,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:35:09,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:35:09,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:35:09,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:35:09,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:35:09,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:35:09,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:35:09,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:35:09,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:35:09,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:35:09,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:35:09,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:35:09,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:35:09,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:35:09,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:35:09,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:35:09,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:35:09,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:35:09,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:35:09,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:35:09,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:35:09,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:35:09,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:35:09,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:35:09,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:35:09,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:35:09,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:35:09,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:35:09,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:35:09,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:35:09,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:35:09,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:35:09,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:35:09,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:35:09,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:35:09,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:35:09,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:35:09,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:35:09,559 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 [2019-11-07 04:35:09,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:35:09,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:35:09,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:35:09,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:35:09,590 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:35:09,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:35:09,591 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:35:09,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:35:09,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:35:09,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:35:09,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:35:09,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:35:09,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:35:09,593 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:35:09,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:35:09,594 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:35:09,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:35:09,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:35:09,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:35:09,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:35:09,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:35:09,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:35:09,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:35:09,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:35:09,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:35:09,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:35:09,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:35:09,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:35:09,596 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 [2019-11-07 04:35:09,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:35:09,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:35:09,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:35:09,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:35:09,913 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:35:09,914 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-11-07 04:35:09,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d59343/8c8abd4e8cb942b3bce4fc775b2047c9/FLAGfb5a05185 [2019-11-07 04:35:10,508 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:35:10,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2019-11-07 04:35:10,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d59343/8c8abd4e8cb942b3bce4fc775b2047c9/FLAGfb5a05185 [2019-11-07 04:35:10,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b65d59343/8c8abd4e8cb942b3bce4fc775b2047c9 [2019-11-07 04:35:10,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:35:10,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:35:10,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:35:10,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:35:10,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:35:10,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:35:10" (1/1) ... [2019-11-07 04:35:10,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199fd355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:10, skipping insertion in model container [2019-11-07 04:35:10,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:35:10" (1/1) ... [2019-11-07 04:35:10,917 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:35:11,025 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:35:11,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:35:11,498 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:35:11,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:35:11,635 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:35:11,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11 WrapperNode [2019-11-07 04:35:11,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:35:11,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:35:11,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:35:11,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:35:11,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (1/1) ... [2019-11-07 04:35:11,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (1/1) ... [2019-11-07 04:35:11,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (1/1) ... [2019-11-07 04:35:11,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (1/1) ... [2019-11-07 04:35:11,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (1/1) ... [2019-11-07 04:35:11,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (1/1) ... [2019-11-07 04:35:11,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (1/1) ... [2019-11-07 04:35:11,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:35:11,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:35:11,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:35:11,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:35:11,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (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 [2019-11-07 04:35:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:35:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:35:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:35:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:35:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:35:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:35:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:35:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:35:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:35:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:35:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:35:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:35:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:35:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:35:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:35:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:35:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:35:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:35:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:35:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:35:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:35:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:35:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:35:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:35:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:35:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:35:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:35:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:35:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:35:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:35:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:35:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:35:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:35:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:35:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:35:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:35:11,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:35:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:35:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:35:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:35:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:35:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:35:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:35:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:35:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:35:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:35:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:35:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:35:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:35:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:35:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:35:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:35:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:35:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:35:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:35:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:35:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:35:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:35:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:35:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:35:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:35:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:35:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:35:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:35:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:35:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:35:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:35:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:35:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:35:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:35:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:35:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:35:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:35:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:35:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:35:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:35:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:35:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:35:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:35:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:35:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:35:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:35:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:35:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:35:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:35:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:35:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:35:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:35:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:35:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:35:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:35:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:35:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:35:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:35:13,492 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:35:13,493 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:35:13,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:35:13 BoogieIcfgContainer [2019-11-07 04:35:13,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:35:13,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:35:13,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:35:13,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:35:13,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:35:10" (1/3) ... [2019-11-07 04:35:13,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d06a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:35:13, skipping insertion in model container [2019-11-07 04:35:13,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:35:11" (2/3) ... [2019-11-07 04:35:13,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d06a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:35:13, skipping insertion in model container [2019-11-07 04:35:13,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:35:13" (3/3) ... [2019-11-07 04:35:13,504 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2019-11-07 04:35:13,515 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:35:13,524 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:35:13,537 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:35:13,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:35:13,569 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:35:13,569 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:35:13,570 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:35:13,571 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:35:13,571 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:35:13,571 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:35:13,572 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:35:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-07 04:35:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:35:13,632 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:13,633 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:13,635 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:13,643 INFO L82 PathProgramCache]: Analyzing trace with hash 859758513, now seen corresponding path program 1 times [2019-11-07 04:35:13,654 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:13,655 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565029066] [2019-11-07 04:35:13,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:14,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:14,030 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565029066] [2019-11-07 04:35:14,031 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:14,031 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:35:14,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828854212] [2019-11-07 04:35:14,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:35:14,045 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:14,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:35:14,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:35:14,064 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2019-11-07 04:35:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:14,141 INFO L93 Difference]: Finished difference Result 224 states and 269 transitions. [2019-11-07 04:35:14,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:35:14,143 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-11-07 04:35:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:14,173 INFO L225 Difference]: With dead ends: 224 [2019-11-07 04:35:14,174 INFO L226 Difference]: Without dead ends: 114 [2019-11-07 04:35:14,186 INFO L630 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 [2019-11-07 04:35:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-07 04:35:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-11-07 04:35:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-07 04:35:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2019-11-07 04:35:14,242 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 52 [2019-11-07 04:35:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:14,242 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2019-11-07 04:35:14,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:35:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2019-11-07 04:35:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-07 04:35:14,247 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:14,247 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:14,247 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:14,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:14,248 INFO L82 PathProgramCache]: Analyzing trace with hash 194581830, now seen corresponding path program 1 times [2019-11-07 04:35:14,248 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:14,248 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507035803] [2019-11-07 04:35:14,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:14,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:14,547 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507035803] [2019-11-07 04:35:14,548 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:14,548 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:35:14,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496485310] [2019-11-07 04:35:14,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:35:14,552 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:14,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:35:14,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:35:14,553 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 7 states. [2019-11-07 04:35:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:14,938 INFO L93 Difference]: Finished difference Result 203 states and 238 transitions. [2019-11-07 04:35:14,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:35:14,939 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-11-07 04:35:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:14,941 INFO L225 Difference]: With dead ends: 203 [2019-11-07 04:35:14,941 INFO L226 Difference]: Without dead ends: 114 [2019-11-07 04:35:14,945 INFO L630 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 [2019-11-07 04:35:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-11-07 04:35:14,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-11-07 04:35:14,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-07 04:35:14,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2019-11-07 04:35:14,965 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 55 [2019-11-07 04:35:14,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:14,967 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2019-11-07 04:35:14,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:35:14,968 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2019-11-07 04:35:14,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-07 04:35:14,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:14,970 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:14,971 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:14,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:14,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1019805163, now seen corresponding path program 1 times [2019-11-07 04:35:14,971 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:14,972 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084596847] [2019-11-07 04:35:14,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:15,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:15,079 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084596847] [2019-11-07 04:35:15,079 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:15,080 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:35:15,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735473580] [2019-11-07 04:35:15,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:35:15,082 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:15,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:35:15,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:35:15,083 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand 3 states. [2019-11-07 04:35:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:15,102 INFO L93 Difference]: Finished difference Result 182 states and 206 transitions. [2019-11-07 04:35:15,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:35:15,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-11-07 04:35:15,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:15,105 INFO L225 Difference]: With dead ends: 182 [2019-11-07 04:35:15,105 INFO L226 Difference]: Without dead ends: 106 [2019-11-07 04:35:15,106 INFO L630 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 [2019-11-07 04:35:15,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-07 04:35:15,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-11-07 04:35:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-07 04:35:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2019-11-07 04:35:15,122 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 66 [2019-11-07 04:35:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:15,122 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2019-11-07 04:35:15,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:35:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2019-11-07 04:35:15,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-11-07 04:35:15,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:15,126 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:15,126 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:15,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:15,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1392855685, now seen corresponding path program 1 times [2019-11-07 04:35:15,127 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:15,127 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036953808] [2019-11-07 04:35:15,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:15,268 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036953808] [2019-11-07 04:35:15,268 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:15,268 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:35:15,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195933891] [2019-11-07 04:35:15,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:35:15,269 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:15,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:35:15,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:35:15,270 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 5 states. [2019-11-07 04:35:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:15,752 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2019-11-07 04:35:15,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:35:15,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-11-07 04:35:15,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:15,760 INFO L225 Difference]: With dead ends: 275 [2019-11-07 04:35:15,760 INFO L226 Difference]: Without dead ends: 194 [2019-11-07 04:35:15,761 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:35:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-11-07 04:35:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 179. [2019-11-07 04:35:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-11-07 04:35:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 199 transitions. [2019-11-07 04:35:15,797 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 199 transitions. Word has length 68 [2019-11-07 04:35:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:15,797 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 199 transitions. [2019-11-07 04:35:15,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:35:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 199 transitions. [2019-11-07 04:35:15,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 04:35:15,800 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:15,800 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:15,800 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:15,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:15,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1888393877, now seen corresponding path program 1 times [2019-11-07 04:35:15,801 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:15,801 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118945183] [2019-11-07 04:35:15,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:16,095 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118945183] [2019-11-07 04:35:16,095 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:16,095 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:35:16,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962203352] [2019-11-07 04:35:16,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:35:16,098 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:16,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:35:16,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:35:16,100 INFO L87 Difference]: Start difference. First operand 179 states and 199 transitions. Second operand 12 states. [2019-11-07 04:35:17,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:17,181 INFO L93 Difference]: Finished difference Result 475 states and 543 transitions. [2019-11-07 04:35:17,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:35:17,182 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2019-11-07 04:35:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:17,186 INFO L225 Difference]: With dead ends: 475 [2019-11-07 04:35:17,186 INFO L226 Difference]: Without dead ends: 321 [2019-11-07 04:35:17,188 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:35:17,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-11-07 04:35:17,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2019-11-07 04:35:17,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-11-07 04:35:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 352 transitions. [2019-11-07 04:35:17,224 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 352 transitions. Word has length 77 [2019-11-07 04:35:17,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:17,225 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 352 transitions. [2019-11-07 04:35:17,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:35:17,225 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 352 transitions. [2019-11-07 04:35:17,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 04:35:17,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:17,227 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:17,227 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:17,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:17,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1194579199, now seen corresponding path program 1 times [2019-11-07 04:35:17,228 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:17,228 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607848841] [2019-11-07 04:35:17,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:35:17,368 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607848841] [2019-11-07 04:35:17,369 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:17,369 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:35:17,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573427683] [2019-11-07 04:35:17,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:35:17,370 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:17,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:35:17,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:35:17,371 INFO L87 Difference]: Start difference. First operand 309 states and 352 transitions. Second operand 7 states. [2019-11-07 04:35:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:17,969 INFO L93 Difference]: Finished difference Result 617 states and 725 transitions. [2019-11-07 04:35:17,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:35:17,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-11-07 04:35:17,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:17,974 INFO L225 Difference]: With dead ends: 617 [2019-11-07 04:35:17,974 INFO L226 Difference]: Without dead ends: 333 [2019-11-07 04:35:17,975 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:35:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-11-07 04:35:18,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 306. [2019-11-07 04:35:18,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-07 04:35:18,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 343 transitions. [2019-11-07 04:35:18,004 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 343 transitions. Word has length 77 [2019-11-07 04:35:18,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:18,005 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 343 transitions. [2019-11-07 04:35:18,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:35:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 343 transitions. [2019-11-07 04:35:18,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-07 04:35:18,007 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:18,007 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:18,008 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:18,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:18,008 INFO L82 PathProgramCache]: Analyzing trace with hash 592950339, now seen corresponding path program 1 times [2019-11-07 04:35:18,008 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:18,008 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867170417] [2019-11-07 04:35:18,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:35:18,168 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867170417] [2019-11-07 04:35:18,168 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:35:18,169 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:35:18,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157203412] [2019-11-07 04:35:18,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:35:18,171 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:35:18,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:35:18,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:35:18,173 INFO L87 Difference]: Start difference. First operand 306 states and 343 transitions. Second operand 9 states. [2019-11-07 04:35:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:35:19,091 INFO L93 Difference]: Finished difference Result 931 states and 1073 transitions. [2019-11-07 04:35:19,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:35:19,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2019-11-07 04:35:19,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:35:19,100 INFO L225 Difference]: With dead ends: 931 [2019-11-07 04:35:19,100 INFO L226 Difference]: Without dead ends: 707 [2019-11-07 04:35:19,102 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:35:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-11-07 04:35:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 610. [2019-11-07 04:35:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-11-07 04:35:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 691 transitions. [2019-11-07 04:35:19,174 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 691 transitions. Word has length 80 [2019-11-07 04:35:19,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:35:19,174 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 691 transitions. [2019-11-07 04:35:19,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:35:19,175 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 691 transitions. [2019-11-07 04:35:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-07 04:35:19,177 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:35:19,177 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:35:19,178 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:35:19,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:35:19,178 INFO L82 PathProgramCache]: Analyzing trace with hash 183080203, now seen corresponding path program 1 times [2019-11-07 04:35:19,179 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:35:19,179 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485064652] [2019-11-07 04:35:19,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:35:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-07 04:35:19,339 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485064652] [2019-11-07 04:35:19,340 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107048756] [2019-11-07 04:35:19,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:35:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:35:19,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 04:35:19,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:35:19,922 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:35:19,922 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:35:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-07 04:35:20,314 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1028563996] [2019-11-07 04:35:20,343 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2019-11-07 04:35:20,344 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:35:20,351 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:35:20,357 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:35:20,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:35:29,188 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-11-07 04:35:30,878 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:35:31,028 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:35:31,202 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:35:31,412 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:35:31,861 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:35:32,077 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:35:32,222 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:35:32,502 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:35:32,513 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-11-07 04:35:32,529 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-11-07 04:35:32,823 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:33,005 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:33,224 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:33,378 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:33,539 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:33,669 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:33,773 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:33,876 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:34,028 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:34,132 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:34,245 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:34,447 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:34,616 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:34,788 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:34,928 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,046 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,156 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,274 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,430 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,540 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,665 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,775 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:35,897 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:36,055 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:36,351 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 562 [2019-11-07 04:35:36,479 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:35:36,617 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:35:36,857 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 562 [2019-11-07 04:35:36,982 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:35:37,129 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:35:37,294 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:35:37,442 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:35:37,573 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:35:37,726 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:35:37,844 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:35:37,967 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:35:37,987 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-11-07 04:35:38,136 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:38,405 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:38,617 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:35:38,736 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:35:38,745 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-11-07 04:35:38,951 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-11-07 04:35:39,332 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:35:39,787 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 575 [2019-11-07 04:35:40,199 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-11-07 04:35:40,617 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 188 [2019-11-07 04:35:41,133 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 184 [2019-11-07 04:35:41,702 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 186 [2019-11-07 04:35:42,158 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 608 [2019-11-07 04:35:42,348 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 608 [2019-11-07 04:35:42,784 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:35:42,920 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:35:43,092 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 600 DAG size of output: 600 [2019-11-07 04:35:43,224 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:35:43,355 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-11-07 04:35:43,529 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 600 DAG size of output: 600 [2019-11-07 04:35:43,559 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 577 for LOIs [2019-11-07 04:35:43,580 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 152 for LOIs [2019-11-07 04:35:44,575 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-07 04:35:45,129 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 04:35:45,307 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 158 [2019-11-07 04:35:45,461 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 04:35:45,968 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 147 for LOIs [2019-11-07 04:35:45,973 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 145 for LOIs [2019-11-07 04:35:46,860 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 145 for LOIs [2019-11-07 04:35:46,980 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 145 for LOIs [2019-11-07 04:35:46,983 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 163 for LOIs [2019-11-07 04:35:47,857 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 156 for LOIs [2019-11-07 04:35:48,075 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 156 for LOIs [2019-11-07 04:35:48,083 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 141 for LOIs [2019-11-07 04:35:48,087 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 159 for LOIs [2019-11-07 04:35:48,092 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 544 for LOIs [2019-11-07 04:35:48,105 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 544 for LOIs [2019-11-07 04:35:48,117 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification5_spec__3 with input of size 150 for LOIs