java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:20:10,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:20:10,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:20:10,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:20:10,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:20:10,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:20:10,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:20:10,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:20:10,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:20:10,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:20:10,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:20:10,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:20:10,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:20:10,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:20:10,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:20:10,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:20:10,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:20:10,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:20:10,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:20:10,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:20:10,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:20:10,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:20:10,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:20:10,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:20:10,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:20:10,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:20:10,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:20:10,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:20:10,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:20:10,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:20:10,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:20:10,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:20:10,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:20:10,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:20:10,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:20:10,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:20:10,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:20:10,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:20:10,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:20:10,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:20:10,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:20:10,617 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 [2019-10-15 03:20:10,642 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:20:10,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:20:10,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:20:10,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:20:10,645 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:20:10,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:20:10,645 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:20:10,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:20:10,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:20:10,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:20:10,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:20:10,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:20:10,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:20:10,647 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:20:10,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:20:10,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:20:10,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:20:10,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:20:10,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:20:10,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:20:10,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:20:10,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:20:10,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:20:10,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:20:10,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:20:10,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:20:10,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:20:10,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:20:10,650 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 [2019-10-15 03:20:10,942 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:20:10,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:20:10,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:20:10,959 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:20:10,960 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:20:10,960 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-10-15 03:20:11,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d22f8c8/f435693d6fcb4b8b8e0474249b01a46d/FLAG5f1805763 [2019-10-15 03:20:11,561 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:20:11,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-10-15 03:20:11,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d22f8c8/f435693d6fcb4b8b8e0474249b01a46d/FLAG5f1805763 [2019-10-15 03:20:11,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d22f8c8/f435693d6fcb4b8b8e0474249b01a46d [2019-10-15 03:20:11,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:20:11,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:20:11,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:20:11,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:20:11,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:20:11,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:20:11" (1/1) ... [2019-10-15 03:20:11,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4d736e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:11, skipping insertion in model container [2019-10-15 03:20:11,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:20:11" (1/1) ... [2019-10-15 03:20:11,948 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:20:11,989 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:20:12,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:20:12,467 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:20:12,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:20:12,612 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:20:12,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12 WrapperNode [2019-10-15 03:20:12,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:20:12,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:20:12,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:20:12,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:20:12,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (1/1) ... [2019-10-15 03:20:12,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (1/1) ... [2019-10-15 03:20:12,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (1/1) ... [2019-10-15 03:20:12,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (1/1) ... [2019-10-15 03:20:12,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (1/1) ... [2019-10-15 03:20:12,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (1/1) ... [2019-10-15 03:20:12,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (1/1) ... [2019-10-15 03:20:12,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:20:12,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:20:12,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:20:12,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:20:12,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (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 [2019-10-15 03:20:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:20:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:20:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:20:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:20:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:20:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:20:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:20:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:20:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:20:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:20:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:20:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:20:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:20:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:20:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:20:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:20:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:20:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:20:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:20:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:20:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:20:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:20:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:20:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:20:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:20:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:20:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:20:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:20:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-15 03:20:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:20:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:20:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:20:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:20:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:20:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:20:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:20:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:20:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:20:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:20:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:20:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:20:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:20:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:20:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:20:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:20:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:20:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:20:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:20:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:20:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:20:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:20:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:20:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:20:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:20:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:20:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:20:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:20:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:20:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:20:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-15 03:20:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:20:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:20:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:20:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:20:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:20:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:20:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:20:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:20:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:20:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:20:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:20:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:20:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:20:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:20:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:20:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:20:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:20:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:20:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:20:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:20:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:20:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:20:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:20:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:20:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:20:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:20:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:20:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:20:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:20:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:20:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:20:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:20:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:20:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:20:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:20:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:20:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:20:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:20:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:20:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:20:14,344 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:20:14,344 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:20:14,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:20:14 BoogieIcfgContainer [2019-10-15 03:20:14,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:20:14,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:20:14,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:20:14,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:20:14,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:20:11" (1/3) ... [2019-10-15 03:20:14,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4508a6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:20:14, skipping insertion in model container [2019-10-15 03:20:14,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:20:12" (2/3) ... [2019-10-15 03:20:14,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4508a6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:20:14, skipping insertion in model container [2019-10-15 03:20:14,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:20:14" (3/3) ... [2019-10-15 03:20:14,356 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2019-10-15 03:20:14,367 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:20:14,376 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:20:14,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:20:14,422 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:20:14,422 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:20:14,422 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:20:14,422 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:20:14,423 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:20:14,423 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:20:14,424 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:20:14,424 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:20:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2019-10-15 03:20:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 03:20:14,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:14,463 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:14,465 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:14,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:14,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1011592262, now seen corresponding path program 1 times [2019-10-15 03:20:14,481 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:14,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284737761] [2019-10-15 03:20:14,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:14,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:14,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:14,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284737761] [2019-10-15 03:20:14,834 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:14,835 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:20:14,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667957073] [2019-10-15 03:20:14,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:20:14,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:14,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:20:14,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:20:14,872 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2019-10-15 03:20:14,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:14,921 INFO L93 Difference]: Finished difference Result 258 states and 319 transitions. [2019-10-15 03:20:14,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:20:14,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-15 03:20:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:14,937 INFO L225 Difference]: With dead ends: 258 [2019-10-15 03:20:14,937 INFO L226 Difference]: Without dead ends: 131 [2019-10-15 03:20:14,943 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:20:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-15 03:20:15,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-15 03:20:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-15 03:20:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 155 transitions. [2019-10-15 03:20:15,035 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 155 transitions. Word has length 46 [2019-10-15 03:20:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:15,038 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 155 transitions. [2019-10-15 03:20:15,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:20:15,038 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 155 transitions. [2019-10-15 03:20:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-15 03:20:15,042 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:15,042 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:15,043 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:15,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:15,045 INFO L82 PathProgramCache]: Analyzing trace with hash 751232651, now seen corresponding path program 1 times [2019-10-15 03:20:15,045 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:15,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783467908] [2019-10-15 03:20:15,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:15,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:15,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:15,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783467908] [2019-10-15 03:20:15,231 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:15,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:20:15,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35015019] [2019-10-15 03:20:15,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:15,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:15,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:15,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:15,235 INFO L87 Difference]: Start difference. First operand 131 states and 155 transitions. Second operand 3 states. [2019-10-15 03:20:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:15,259 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2019-10-15 03:20:15,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:15,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-15 03:20:15,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:15,263 INFO L225 Difference]: With dead ends: 209 [2019-10-15 03:20:15,263 INFO L226 Difference]: Without dead ends: 123 [2019-10-15 03:20:15,265 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:15,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-15 03:20:15,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-15 03:20:15,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-15 03:20:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2019-10-15 03:20:15,287 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 47 [2019-10-15 03:20:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:15,288 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2019-10-15 03:20:15,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2019-10-15 03:20:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-15 03:20:15,291 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:15,291 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:15,291 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:15,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:15,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1922198881, now seen corresponding path program 1 times [2019-10-15 03:20:15,292 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:15,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305702461] [2019-10-15 03:20:15,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:15,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:15,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:15,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305702461] [2019-10-15 03:20:15,486 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:15,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:20:15,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043551589] [2019-10-15 03:20:15,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:20:15,489 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:15,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:20:15,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:20:15,490 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 7 states. [2019-10-15 03:20:16,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:16,084 INFO L93 Difference]: Finished difference Result 364 states and 441 transitions. [2019-10-15 03:20:16,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:20:16,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-15 03:20:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:16,089 INFO L225 Difference]: With dead ends: 364 [2019-10-15 03:20:16,089 INFO L226 Difference]: Without dead ends: 266 [2019-10-15 03:20:16,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:20:16,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-10-15 03:20:16,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 258. [2019-10-15 03:20:16,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-10-15 03:20:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 312 transitions. [2019-10-15 03:20:16,127 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 312 transitions. Word has length 50 [2019-10-15 03:20:16,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:16,128 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 312 transitions. [2019-10-15 03:20:16,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:20:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 312 transitions. [2019-10-15 03:20:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 03:20:16,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:16,131 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:16,131 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:16,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:16,132 INFO L82 PathProgramCache]: Analyzing trace with hash 592703366, now seen corresponding path program 1 times [2019-10-15 03:20:16,132 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:16,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509852645] [2019-10-15 03:20:16,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:16,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:16,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:16,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509852645] [2019-10-15 03:20:16,226 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:16,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:20:16,226 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33431537] [2019-10-15 03:20:16,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:20:16,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:16,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:20:16,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:20:16,229 INFO L87 Difference]: Start difference. First operand 258 states and 312 transitions. Second operand 6 states. [2019-10-15 03:20:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:16,468 INFO L93 Difference]: Finished difference Result 706 states and 873 transitions. [2019-10-15 03:20:16,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:20:16,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-15 03:20:16,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:16,481 INFO L225 Difference]: With dead ends: 706 [2019-10-15 03:20:16,481 INFO L226 Difference]: Without dead ends: 473 [2019-10-15 03:20:16,529 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:20:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-15 03:20:16,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 461. [2019-10-15 03:20:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-15 03:20:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 561 transitions. [2019-10-15 03:20:16,609 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 561 transitions. Word has length 55 [2019-10-15 03:20:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:16,611 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 561 transitions. [2019-10-15 03:20:16,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:20:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 561 transitions. [2019-10-15 03:20:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-15 03:20:16,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:16,621 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:16,621 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1196958205, now seen corresponding path program 1 times [2019-10-15 03:20:16,622 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:16,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501876156] [2019-10-15 03:20:16,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:16,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:16,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:16,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:16,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501876156] [2019-10-15 03:20:16,790 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:16,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:20:16,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277513785] [2019-10-15 03:20:16,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:20:16,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:16,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:20:16,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:20:16,794 INFO L87 Difference]: Start difference. First operand 461 states and 561 transitions. Second operand 7 states. [2019-10-15 03:20:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:17,432 INFO L93 Difference]: Finished difference Result 1215 states and 1604 transitions. [2019-10-15 03:20:17,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:20:17,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-15 03:20:17,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:17,460 INFO L225 Difference]: With dead ends: 1215 [2019-10-15 03:20:17,460 INFO L226 Difference]: Without dead ends: 779 [2019-10-15 03:20:17,462 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:20:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2019-10-15 03:20:17,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 692. [2019-10-15 03:20:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2019-10-15 03:20:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 836 transitions. [2019-10-15 03:20:17,517 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 836 transitions. Word has length 58 [2019-10-15 03:20:17,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:17,518 INFO L462 AbstractCegarLoop]: Abstraction has 692 states and 836 transitions. [2019-10-15 03:20:17,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:20:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 836 transitions. [2019-10-15 03:20:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-15 03:20:17,520 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:17,520 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:20:17,520 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:17,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:17,521 INFO L82 PathProgramCache]: Analyzing trace with hash -565853544, now seen corresponding path program 1 times [2019-10-15 03:20:17,521 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:17,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598049075] [2019-10-15 03:20:17,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:17,522 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:17,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:20:17,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598049075] [2019-10-15 03:20:17,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:20:17,586 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:20:17,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179535497] [2019-10-15 03:20:17,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:20:17,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:20:17,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:20:17,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:17,587 INFO L87 Difference]: Start difference. First operand 692 states and 836 transitions. Second operand 3 states. [2019-10-15 03:20:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:20:17,664 INFO L93 Difference]: Finished difference Result 984 states and 1215 transitions. [2019-10-15 03:20:17,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:20:17,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-10-15 03:20:17,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:20:17,674 INFO L225 Difference]: With dead ends: 984 [2019-10-15 03:20:17,674 INFO L226 Difference]: Without dead ends: 981 [2019-10-15 03:20:17,675 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:20:17,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2019-10-15 03:20:17,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 941. [2019-10-15 03:20:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2019-10-15 03:20:17,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1162 transitions. [2019-10-15 03:20:17,748 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1162 transitions. Word has length 80 [2019-10-15 03:20:17,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:20:17,749 INFO L462 AbstractCegarLoop]: Abstraction has 941 states and 1162 transitions. [2019-10-15 03:20:17,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:20:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1162 transitions. [2019-10-15 03:20:17,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:20:17,760 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:20:17,760 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:20:17,760 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:20:17,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:20:17,761 INFO L82 PathProgramCache]: Analyzing trace with hash -222626685, now seen corresponding path program 1 times [2019-10-15 03:20:17,761 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:20:17,761 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545302280] [2019-10-15 03:20:17,761 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:17,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:20:17,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:20:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:20:18,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545302280] [2019-10-15 03:20:18,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096198224] [2019-10-15 03:20:18,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:20:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:20:18,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:20:18,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:20:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:20:18,457 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:20:18,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:20:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:20:18,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [224846439] [2019-10-15 03:20:18,921 INFO L162 IcfgInterpreter]: Started Sifa with 96 locations of interest [2019-10-15 03:20:18,921 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:20:18,929 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:20:18,938 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:20:18,938 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:20:29,416 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:20:30,907 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:20:31,052 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:31,206 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:31,454 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:20:31,885 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:32,149 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:32,456 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:32,745 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:33,166 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:20:33,357 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:33,550 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:33,732 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:33,899 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:34,085 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:20:34,098 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:20:34,395 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-15 03:20:34,396 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 548 for LOIs [2019-10-15 03:20:34,598 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:34,722 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:34,892 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:35,010 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:35,119 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:35,289 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:35,445 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:35,568 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:35,703 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:35,944 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 548 [2019-10-15 03:20:36,049 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:36,239 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:36,357 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:36,467 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:36,636 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:36,963 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:37,067 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:37,173 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:37,325 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:37,432 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:37,539 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:37,663 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:37,768 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:38,000 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,137 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:38,244 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:38,371 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,573 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:38,698 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:38,804 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:38,921 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:39,046 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,151 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:39,253 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-15 03:20:39,377 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,514 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,633 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:39,804 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:40,034 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:40,148 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:40,280 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:40,394 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:40,513 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:40,642 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:40,807 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:40,934 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:41,065 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:41,197 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:41,318 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:41,458 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:41,681 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:41,840 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:41,969 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:42,092 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:42,208 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:42,344 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:42,461 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:42,591 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:42,724 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:20:42,854 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:42,974 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:43,163 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:20:43,376 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:20:43,497 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:43,783 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:20:44,078 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:44,246 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:44,381 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:20:44,629 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:44,748 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:44,898 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:45,122 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:45,243 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:45,371 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:45,489 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:45,607 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:45,734 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:45,877 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:45,996 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:46,128 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:46,364 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:46,490 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:46,633 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:46,854 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:46,969 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:47,101 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:47,313 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:47,434 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:47,567 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:47,777 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:20:47,899 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:48,043 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:20:48,269 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:48,382 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:48,512 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:48,725 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:48,840 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:48,972 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:49,085 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:49,210 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:49,339 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:49,574 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:49,688 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:49,851 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:50,062 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:20:50,177 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:50,304 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:50,417 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:50,533 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:50,657 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:20:50,797 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:50,914 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:51,044 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:51,253 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:51,367 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:51,493 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:51,737 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:51,859 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:51,990 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:52,204 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:20:52,321 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:20:52,451 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:52,653 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:20:52,772 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:20:52,903 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:20:53,129 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564