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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:18:10,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:18:10,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:18:10,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:18:10,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:18:10,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:18:10,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:18:10,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:18:10,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:18:10,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:18:10,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:18:10,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:18:10,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:18:10,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:18:10,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:18:10,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:18:10,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:18:10,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:18:10,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:18:10,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:18:10,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:18:10,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:18:10,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:18:10,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:18:10,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:18:10,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:18:10,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:18:10,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:18:10,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:18:10,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:18:10,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:18:10,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:18:10,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:18:10,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:18:10,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:18:10,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:18:10,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:18:10,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:18:10,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:18:10,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:18:10,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:18:10,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:18:10,319 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:18:10,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:18:10,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:18:10,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:18:10,321 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:18:10,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:18:10,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:18:10,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:18:10,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:18:10,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:18:10,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:18:10,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:18:10,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:18:10,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:18:10,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:18:10,323 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:18:10,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:18:10,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:18:10,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:18:10,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:18:10,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:18:10,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:10,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:18:10,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:18:10,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:18:10,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:18:10,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:18:10,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:18:10,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:18:10,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:18:10,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:18:10,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:18:10,594 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:18:10,595 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:18:10,595 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2019-10-13 23:18:10,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f1fc26c8/a2a109b397334cdc9e139cc9dfbea45e/FLAGbadddb4d9 [2019-10-13 23:18:11,185 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:18:11,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2019-10-13 23:18:11,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f1fc26c8/a2a109b397334cdc9e139cc9dfbea45e/FLAGbadddb4d9 [2019-10-13 23:18:11,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f1fc26c8/a2a109b397334cdc9e139cc9dfbea45e [2019-10-13 23:18:11,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:18:11,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:18:11,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:11,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:18:11,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:18:11,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:11" (1/1) ... [2019-10-13 23:18:11,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411accdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:11, skipping insertion in model container [2019-10-13 23:18:11,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:11" (1/1) ... [2019-10-13 23:18:11,520 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:18:11,567 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:18:11,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:11,978 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:18:12,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:12,089 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:18:12,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12 WrapperNode [2019-10-13 23:18:12,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:12,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:18:12,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:18:12,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:18:12,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (1/1) ... [2019-10-13 23:18:12,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:18:12,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:18:12,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:18:12,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:18:12,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (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 [2019-10-13 23:18:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:18:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:18:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:18:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:18:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:18:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:18:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:18:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:18:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:18:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:18:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:18:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:18:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:18:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:18:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:18:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:18:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:18:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:18:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:18:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:18:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:18:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:18:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:18:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:18:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:18:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:18:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:18:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:18:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:18:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:18:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:18:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:18:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:18:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:18:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:18:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:18:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:18:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:18:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:18:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:18:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:18:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:18:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:18:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:18:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:18:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:18:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:18:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:18:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:18:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:18:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:18:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:18:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:18:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:18:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:18:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:18:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:18:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:18:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:18:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:18:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:18:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:18:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:18:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:18:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:18:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:18:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:18:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:18:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:18:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:18:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:18:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:18:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:18:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:18:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:18:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:18:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:18:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:18:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:18:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:18:13,780 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:18:13,781 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:18:13,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:13 BoogieIcfgContainer [2019-10-13 23:18:13,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:18:13,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:18:13,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:18:13,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:18:13,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:18:11" (1/3) ... [2019-10-13 23:18:13,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b18fbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:13, skipping insertion in model container [2019-10-13 23:18:13,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:12" (2/3) ... [2019-10-13 23:18:13,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b18fbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:13, skipping insertion in model container [2019-10-13 23:18:13,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:13" (3/3) ... [2019-10-13 23:18:13,794 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2019-10-13 23:18:13,804 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:18:13,814 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:18:13,822 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:18:13,848 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:18:13,848 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:18:13,849 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:18:13,849 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:18:13,849 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:18:13,849 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:18:13,850 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:18:13,850 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:18:13,871 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-10-13 23:18:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:18:13,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:13,881 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:13,883 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:13,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:13,889 INFO L82 PathProgramCache]: Analyzing trace with hash -935282748, now seen corresponding path program 1 times [2019-10-13 23:18:13,898 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:13,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78455336] [2019-10-13 23:18:13,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:13,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:13,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:14,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78455336] [2019-10-13 23:18:14,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:14,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:18:14,252 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906706516] [2019-10-13 23:18:14,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:18:14,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:14,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:18:14,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:14,274 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-10-13 23:18:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:14,312 INFO L93 Difference]: Finished difference Result 232 states and 279 transitions. [2019-10-13 23:18:14,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:18:14,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:18:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:14,326 INFO L225 Difference]: With dead ends: 232 [2019-10-13 23:18:14,326 INFO L226 Difference]: Without dead ends: 118 [2019-10-13 23:18:14,331 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-13 23:18:14,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-13 23:18:14,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-13 23:18:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2019-10-13 23:18:14,391 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 52 [2019-10-13 23:18:14,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:14,392 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2019-10-13 23:18:14,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:18:14,392 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2019-10-13 23:18:14,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:18:14,399 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:14,399 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:14,400 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:14,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:14,401 INFO L82 PathProgramCache]: Analyzing trace with hash 773929919, now seen corresponding path program 1 times [2019-10-13 23:18:14,401 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:14,401 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394961618] [2019-10-13 23:18:14,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:14,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394961618] [2019-10-13 23:18:14,598 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:14,598 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:18:14,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776803726] [2019-10-13 23:18:14,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:18:14,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:14,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:18:14,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:14,602 INFO L87 Difference]: Start difference. First operand 118 states and 135 transitions. Second operand 3 states. [2019-10-13 23:18:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:14,644 INFO L93 Difference]: Finished difference Result 181 states and 206 transitions. [2019-10-13 23:18:14,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:18:14,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:18:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:14,652 INFO L225 Difference]: With dead ends: 181 [2019-10-13 23:18:14,653 INFO L226 Difference]: Without dead ends: 110 [2019-10-13 23:18:14,655 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:14,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-10-13 23:18:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-10-13 23:18:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-10-13 23:18:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2019-10-13 23:18:14,682 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 53 [2019-10-13 23:18:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:14,682 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2019-10-13 23:18:14,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:18:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2019-10-13 23:18:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 23:18:14,690 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:14,690 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:14,691 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:14,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1489195522, now seen corresponding path program 1 times [2019-10-13 23:18:14,693 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:14,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767191856] [2019-10-13 23:18:14,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:14,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767191856] [2019-10-13 23:18:14,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:14,890 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:14,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772389942] [2019-10-13 23:18:14,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:14,891 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:14,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:14,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:14,891 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 7 states. [2019-10-13 23:18:15,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:15,378 INFO L93 Difference]: Finished difference Result 329 states and 386 transitions. [2019-10-13 23:18:15,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:18:15,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 23:18:15,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:15,386 INFO L225 Difference]: With dead ends: 329 [2019-10-13 23:18:15,388 INFO L226 Difference]: Without dead ends: 244 [2019-10-13 23:18:15,391 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:18:15,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-10-13 23:18:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 226. [2019-10-13 23:18:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-10-13 23:18:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 263 transitions. [2019-10-13 23:18:15,448 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 263 transitions. Word has length 56 [2019-10-13 23:18:15,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:15,448 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 263 transitions. [2019-10-13 23:18:15,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 263 transitions. [2019-10-13 23:18:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-13 23:18:15,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:15,452 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:15,452 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:15,453 INFO L82 PathProgramCache]: Analyzing trace with hash 221036940, now seen corresponding path program 1 times [2019-10-13 23:18:15,453 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:15,453 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163791459] [2019-10-13 23:18:15,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:15,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:15,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:18:15,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163791459] [2019-10-13 23:18:15,557 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:15,558 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:15,558 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204434422] [2019-10-13 23:18:15,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:15,558 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:15,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:15,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:15,559 INFO L87 Difference]: Start difference. First operand 226 states and 263 transitions. Second operand 7 states. [2019-10-13 23:18:16,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:16,138 INFO L93 Difference]: Finished difference Result 573 states and 720 transitions. [2019-10-13 23:18:16,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:18:16,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-10-13 23:18:16,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:16,146 INFO L225 Difference]: With dead ends: 573 [2019-10-13 23:18:16,146 INFO L226 Difference]: Without dead ends: 372 [2019-10-13 23:18:16,148 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 [2019-10-13 23:18:16,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-13 23:18:16,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 328. [2019-10-13 23:18:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2019-10-13 23:18:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 384 transitions. [2019-10-13 23:18:16,206 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 384 transitions. Word has length 61 [2019-10-13 23:18:16,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:16,207 INFO L462 AbstractCegarLoop]: Abstraction has 328 states and 384 transitions. [2019-10-13 23:18:16,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:16,207 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 384 transitions. [2019-10-13 23:18:16,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 23:18:16,211 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:16,211 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:16,211 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:16,212 INFO L82 PathProgramCache]: Analyzing trace with hash 276736719, now seen corresponding path program 1 times [2019-10-13 23:18:16,212 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:16,212 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080789412] [2019-10-13 23:18:16,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:16,472 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080789412] [2019-10-13 23:18:16,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:16,472 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:18:16,472 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253302032] [2019-10-13 23:18:16,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:18:16,473 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:16,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:18:16,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:18:16,474 INFO L87 Difference]: Start difference. First operand 328 states and 384 transitions. Second operand 12 states. [2019-10-13 23:18:17,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:17,293 INFO L93 Difference]: Finished difference Result 1006 states and 1218 transitions. [2019-10-13 23:18:17,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:18:17,294 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2019-10-13 23:18:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:17,300 INFO L225 Difference]: With dead ends: 1006 [2019-10-13 23:18:17,300 INFO L226 Difference]: Without dead ends: 703 [2019-10-13 23:18:17,302 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:18:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2019-10-13 23:18:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 528. [2019-10-13 23:18:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-10-13 23:18:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 624 transitions. [2019-10-13 23:18:17,349 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 624 transitions. Word has length 86 [2019-10-13 23:18:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:17,349 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 624 transitions. [2019-10-13 23:18:17,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:18:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 624 transitions. [2019-10-13 23:18:17,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-13 23:18:17,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:17,353 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:17,353 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:17,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:17,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2102073, now seen corresponding path program 1 times [2019-10-13 23:18:17,354 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:17,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371141428] [2019-10-13 23:18:17,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:17,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:17,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:17,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:17,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371141428] [2019-10-13 23:18:17,495 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:17,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:18:17,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409345991] [2019-10-13 23:18:17,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:18:17,496 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:17,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:18:17,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:18:17,497 INFO L87 Difference]: Start difference. First operand 528 states and 624 transitions. Second operand 9 states. [2019-10-13 23:18:18,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:18,378 INFO L93 Difference]: Finished difference Result 1599 states and 1955 transitions. [2019-10-13 23:18:18,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:18:18,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2019-10-13 23:18:18,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:18,390 INFO L225 Difference]: With dead ends: 1599 [2019-10-13 23:18:18,390 INFO L226 Difference]: Without dead ends: 1236 [2019-10-13 23:18:18,392 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:18:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2019-10-13 23:18:18,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1150. [2019-10-13 23:18:18,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1150 states. [2019-10-13 23:18:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1380 transitions. [2019-10-13 23:18:18,483 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1380 transitions. Word has length 89 [2019-10-13 23:18:18,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:18,484 INFO L462 AbstractCegarLoop]: Abstraction has 1150 states and 1380 transitions. [2019-10-13 23:18:18,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:18:18,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1380 transitions. [2019-10-13 23:18:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 23:18:18,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:18,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:18,491 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:18,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:18,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1107080697, now seen corresponding path program 1 times [2019-10-13 23:18:18,491 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:18,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497734434] [2019-10-13 23:18:18,492 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:18,492 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:18,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:18:18,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497734434] [2019-10-13 23:18:18,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907722660] [2019-10-13 23:18:18,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:18:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:18,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:18:18,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:18:19,034 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:18:19,035 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:18:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:18:19,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1349401365] [2019-10-13 23:18:19,433 INFO L162 IcfgInterpreter]: Started Sifa with 98 locations of interest [2019-10-13 23:18:19,433 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:18:19,495 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:18:19,510 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:18:19,511 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:18:28,836 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:18:30,321 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:18:30,470 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:30,691 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:30,841 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:31,114 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:31,450 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:31,749 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:31,984 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:32,387 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:18:32,576 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:32,775 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:32,940 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:33,070 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:33,183 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:33,192 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:18:33,398 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:18:33,538 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:33,640 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:33,787 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,026 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,169 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,285 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,392 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,519 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,810 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:18:35,112 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,228 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:35,346 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:35,477 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,581 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:35,684 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:35,806 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,908 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:36,043 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:36,167 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:36,369 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:36,507 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:36,722 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:36,845 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:37,164 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:37,556 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:37,877 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:37,981 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:38,086 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:38,212 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:38,370 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:38,500 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:38,625 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:38,844 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:38,958 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,090 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,209 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,351 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,475 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:39,618 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:39,744 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:39,875 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,004 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,121 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,259 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,377 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,494 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,621 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,738 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:40,853 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:40,983 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,099 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,228 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,369 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:41,504 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,620 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,748 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:41,974 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:18:42,099 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:42,252 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:42,370 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:42,484 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:42,610 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:42,837 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:42,950 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,086 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,315 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:43,429 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,560 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,673 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,788 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:43,911 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,038 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,155 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,289 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,412 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,528 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,662 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,777 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:44,901 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,026 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,234 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:45,348 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:45,490 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,687 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:18:45,802 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:45,930 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:46,147 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:46,260 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,385 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,604 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:46,718 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,843 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,955 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,069 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,194 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,409 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:47,521 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,658 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,862 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:47,973 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,100 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,218 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,330 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,451 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,592 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:48,712 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:48,844 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:48,967 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:49,081 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:49,207 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:49,430 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:49,542 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:49,670 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,151 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:50,341 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,469 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,681 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:50,793 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:50,917 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,170 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:51,282 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,424 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,537 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,649 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,770 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:51,895 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,010 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,139 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,351 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:52,474 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:52,601 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:52,802 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:52,915 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:53,039 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568