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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:17:39,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:17:39,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:17:39,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:17:39,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:17:39,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:17:39,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:17:39,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:17:39,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:17:39,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:17:39,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:17:39,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:17:39,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:17:39,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:17:39,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:17:39,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:17:39,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:17:39,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:17:39,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:17:39,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:17:39,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:17:39,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:17:39,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:17:39,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:17:39,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:17:39,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:17:39,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:17:39,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:17:39,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:17:39,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:17:39,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:17:39,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:17:39,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:17:39,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:17:39,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:17:39,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:17:39,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:17:39,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:17:39,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:17:39,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:17:39,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:17:39,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:17:39,318 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:17:39,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:17:39,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:17:39,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:17:39,321 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:17:39,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:17:39,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:17:39,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:17:39,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:17:39,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:17:39,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:17:39,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:17:39,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:17:39,324 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:17:39,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:17:39,324 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:17:39,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:17:39,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:17:39,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:17:39,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:17:39,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:17:39,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:17:39,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:17:39,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:17:39,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:17:39,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:17:39,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:17:39,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:17:39,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:17:39,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:17:39,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:17:39,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:17:39,641 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:17:39,641 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:17:39,642 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-07 15:17:39,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf387056/53d164a840034580a2675a1f0105ebba/FLAG7072e6f3d [2019-10-07 15:17:40,326 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:17:40,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product60.cil.c [2019-10-07 15:17:40,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf387056/53d164a840034580a2675a1f0105ebba/FLAG7072e6f3d [2019-10-07 15:17:40,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf387056/53d164a840034580a2675a1f0105ebba [2019-10-07 15:17:40,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:17:40,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:17:40,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:17:40,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:17:40,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:17:40,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:17:40" (1/1) ... [2019-10-07 15:17:40,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a48b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:40, skipping insertion in model container [2019-10-07 15:17:40,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:17:40" (1/1) ... [2019-10-07 15:17:40,612 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:17:40,667 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:17:41,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:17:41,134 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:17:41,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:17:41,288 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:17:41,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41 WrapperNode [2019-10-07 15:17:41,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:17:41,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:17:41,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:17:41,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:17:41,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... [2019-10-07 15:17:41,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... [2019-10-07 15:17:41,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... [2019-10-07 15:17:41,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... [2019-10-07 15:17:41,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... [2019-10-07 15:17:41,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... [2019-10-07 15:17:41,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... [2019-10-07 15:17:41,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:17:41,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:17:41,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:17:41,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:17:41,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:17:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:17:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:17:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:17:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:17:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:17:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:17:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:17:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:17:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:17:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-07 15:17:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:17:41,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:17:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:17:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:17:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:17:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:17:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:17:41,452 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:17:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:17:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:17:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:17:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:17:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:17:41,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:17:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:17:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:17:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:17:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:17:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:17:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:17:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:17:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:17:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:17:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:17:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:17:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:17:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:17:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:17:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-07 15:17:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:17:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-07 15:17:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:17:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 15:17:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 15:17:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:17:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:17:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:17:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:17:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:17:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:17:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:17:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:17:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:17:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-07 15:17:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:17:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:17:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:17:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:17:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:17:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:17:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:17:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:17:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 15:17:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:17:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:17:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:17:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:17:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:17:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:17:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:17:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:17:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-07 15:17:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:17:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:17:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:17:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:17:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:17:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:17:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:17:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:17:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:17:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:17:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:17:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:17:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:17:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:17:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:17:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:17:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:17:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:17:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:17:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 15:17:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:17:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:17:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-07 15:17:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-07 15:17:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:17:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-07 15:17:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:17:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:17:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:17:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:17:43,220 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:17:43,221 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:17:43,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:17:43 BoogieIcfgContainer [2019-10-07 15:17:43,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:17:43,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:17:43,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:17:43,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:17:43,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:17:40" (1/3) ... [2019-10-07 15:17:43,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73acaac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:17:43, skipping insertion in model container [2019-10-07 15:17:43,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:17:41" (2/3) ... [2019-10-07 15:17:43,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73acaac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:17:43, skipping insertion in model container [2019-10-07 15:17:43,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:17:43" (3/3) ... [2019-10-07 15:17:43,232 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2019-10-07 15:17:43,243 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:17:43,252 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:17:43,264 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:17:43,293 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:17:43,293 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:17:43,293 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:17:43,293 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:17:43,294 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:17:43,294 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:17:43,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:17:43,294 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:17:43,320 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2019-10-07 15:17:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-07 15:17:43,331 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:43,332 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:43,335 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:43,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:43,342 INFO L82 PathProgramCache]: Analyzing trace with hash 203835508, now seen corresponding path program 1 times [2019-10-07 15:17:43,354 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:43,354 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:43,355 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:43,355 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:43,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:43,718 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:43,719 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:43,719 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:17:43,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:17:43,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:17:43,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:17:43,754 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2019-10-07 15:17:43,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:43,842 INFO L93 Difference]: Finished difference Result 258 states and 313 transitions. [2019-10-07 15:17:43,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:17:43,843 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-07 15:17:43,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:43,860 INFO L225 Difference]: With dead ends: 258 [2019-10-07 15:17:43,860 INFO L226 Difference]: Without dead ends: 131 [2019-10-07 15:17:43,865 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:17:43,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-07 15:17:43,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-07 15:17:43,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-07 15:17:43,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2019-10-07 15:17:43,922 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 46 [2019-10-07 15:17:43,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:43,923 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2019-10-07 15:17:43,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:17:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2019-10-07 15:17:43,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 15:17:43,928 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:43,928 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:43,929 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:43,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:43,929 INFO L82 PathProgramCache]: Analyzing trace with hash -245440472, now seen corresponding path program 1 times [2019-10-07 15:17:43,929 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:43,930 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:43,930 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:43,930 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:43,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:44,125 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:44,126 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:44,126 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:17:44,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:44,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:44,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:17:44,134 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 3 states. [2019-10-07 15:17:44,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:44,175 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2019-10-07 15:17:44,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:44,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-07 15:17:44,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:44,179 INFO L225 Difference]: With dead ends: 206 [2019-10-07 15:17:44,179 INFO L226 Difference]: Without dead ends: 123 [2019-10-07 15:17:44,181 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:17:44,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-07 15:17:44,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-07 15:17:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-07 15:17:44,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2019-10-07 15:17:44,200 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 47 [2019-10-07 15:17:44,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:44,201 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2019-10-07 15:17:44,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:44,201 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2019-10-07 15:17:44,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-07 15:17:44,204 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:44,204 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:44,204 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:44,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:44,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1796950977, now seen corresponding path program 1 times [2019-10-07 15:17:44,205 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:44,205 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:44,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:44,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:44,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:44,392 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:44,393 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:44,393 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:17:44,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:17:44,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:17:44,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:17:44,396 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 7 states. [2019-10-07 15:17:44,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:44,917 INFO L93 Difference]: Finished difference Result 365 states and 435 transitions. [2019-10-07 15:17:44,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 15:17:44,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-07 15:17:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:44,924 INFO L225 Difference]: With dead ends: 365 [2019-10-07 15:17:44,925 INFO L226 Difference]: Without dead ends: 267 [2019-10-07 15:17:44,932 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:17:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-10-07 15:17:45,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 255. [2019-10-07 15:17:45,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2019-10-07 15:17:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2019-10-07 15:17:45,010 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 51 [2019-10-07 15:17:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:45,011 INFO L462 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2019-10-07 15:17:45,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:17:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2019-10-07 15:17:45,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-07 15:17:45,020 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:45,021 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:45,021 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:45,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:45,021 INFO L82 PathProgramCache]: Analyzing trace with hash -185841491, now seen corresponding path program 1 times [2019-10-07 15:17:45,022 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:45,022 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:45,022 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:45,022 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:45,129 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:45,129 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:45,129 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 15:17:45,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 15:17:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 15:17:45,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 15:17:45,130 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand 6 states. [2019-10-07 15:17:45,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:45,390 INFO L93 Difference]: Finished difference Result 697 states and 846 transitions. [2019-10-07 15:17:45,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:17:45,390 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-07 15:17:45,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:45,404 INFO L225 Difference]: With dead ends: 697 [2019-10-07 15:17:45,405 INFO L226 Difference]: Without dead ends: 467 [2019-10-07 15:17:45,409 INFO L606 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 [2019-10-07 15:17:45,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-10-07 15:17:45,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 455. [2019-10-07 15:17:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-07 15:17:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 543 transitions. [2019-10-07 15:17:45,515 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 543 transitions. Word has length 55 [2019-10-07 15:17:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:45,518 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 543 transitions. [2019-10-07 15:17:45,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 15:17:45,518 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 543 transitions. [2019-10-07 15:17:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-07 15:17:45,522 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:45,522 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:45,522 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:45,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2036644305, now seen corresponding path program 1 times [2019-10-07 15:17:45,523 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:45,523 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:45,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:45,524 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 15:17:45,683 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:45,683 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:17:45,684 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:17:45,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:17:45,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:17:45,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:17:45,685 INFO L87 Difference]: Start difference. First operand 455 states and 543 transitions. Second operand 7 states. [2019-10-07 15:17:46,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:46,343 INFO L93 Difference]: Finished difference Result 1187 states and 1538 transitions. [2019-10-07 15:17:46,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:17:46,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-07 15:17:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:46,350 INFO L225 Difference]: With dead ends: 1187 [2019-10-07 15:17:46,350 INFO L226 Difference]: Without dead ends: 757 [2019-10-07 15:17:46,353 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-07 15:17:46,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2019-10-07 15:17:46,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 668. [2019-10-07 15:17:46,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-07 15:17:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 796 transitions. [2019-10-07 15:17:46,429 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 796 transitions. Word has length 58 [2019-10-07 15:17:46,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:46,430 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 796 transitions. [2019-10-07 15:17:46,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:17:46,430 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 796 transitions. [2019-10-07 15:17:46,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-07 15:17:46,433 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:46,433 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:46,433 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:46,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:46,434 INFO L82 PathProgramCache]: Analyzing trace with hash -2002651380, now seen corresponding path program 1 times [2019-10-07 15:17:46,434 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:46,434 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:46,434 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:46,435 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:17:46,605 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:46,605 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:46,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-07 15:17:46,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:17:46,880 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:17:47,016 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 15:17:47,016 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 15 [2019-10-07 15:17:47,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:17:47,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:17:47,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-07 15:17:47,019 INFO L87 Difference]: Start difference. First operand 668 states and 796 transitions. Second operand 3 states. [2019-10-07 15:17:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:47,084 INFO L93 Difference]: Finished difference Result 945 states and 1152 transitions. [2019-10-07 15:17:47,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:17:47,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2019-10-07 15:17:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:47,092 INFO L225 Difference]: With dead ends: 945 [2019-10-07 15:17:47,092 INFO L226 Difference]: Without dead ends: 942 [2019-10-07 15:17:47,094 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-07 15:17:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2019-10-07 15:17:47,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 914. [2019-10-07 15:17:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2019-10-07 15:17:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1115 transitions. [2019-10-07 15:17:47,213 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1115 transitions. Word has length 89 [2019-10-07 15:17:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:47,214 INFO L462 AbstractCegarLoop]: Abstraction has 914 states and 1115 transitions. [2019-10-07 15:17:47,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:17:47,214 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1115 transitions. [2019-10-07 15:17:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 15:17:47,220 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:47,220 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:47,427 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:47,428 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:47,429 INFO L82 PathProgramCache]: Analyzing trace with hash -479479501, now seen corresponding path program 1 times [2019-10-07 15:17:47,429 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:47,430 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:47,430 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:47,430 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:47,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 15:17:47,629 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:47,629 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:47,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 15:17:47,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 15:17:47,976 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:48,767 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-07 15:17:48,768 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:17:48,768 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 12] total 25 [2019-10-07 15:17:48,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:17:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:17:48,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2019-10-07 15:17:48,773 INFO L87 Difference]: Start difference. First operand 914 states and 1115 transitions. Second operand 11 states. [2019-10-07 15:17:49,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:49,741 INFO L93 Difference]: Finished difference Result 2088 states and 2638 transitions. [2019-10-07 15:17:49,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:17:49,742 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 142 [2019-10-07 15:17:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:49,750 INFO L225 Difference]: With dead ends: 2088 [2019-10-07 15:17:49,750 INFO L226 Difference]: Without dead ends: 1199 [2019-10-07 15:17:49,754 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2019-10-07 15:17:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2019-10-07 15:17:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1175. [2019-10-07 15:17:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-10-07 15:17:49,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1426 transitions. [2019-10-07 15:17:49,837 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1426 transitions. Word has length 142 [2019-10-07 15:17:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:49,838 INFO L462 AbstractCegarLoop]: Abstraction has 1175 states and 1426 transitions. [2019-10-07 15:17:49,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:17:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1426 transitions. [2019-10-07 15:17:49,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 15:17:49,845 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:49,845 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:50,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:50,051 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:50,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:50,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1729625035, now seen corresponding path program 1 times [2019-10-07 15:17:50,052 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:50,052 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:50,052 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:50,052 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-07 15:17:50,367 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:50,367 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:50,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-07 15:17:50,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:50,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:50,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-07 15:17:50,983 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:51,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:52,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:52,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:52,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:52,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-07 15:17:52,612 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 15:17:52,612 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-07 15:17:52,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:17:52,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:17:52,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 15:17:52,614 INFO L87 Difference]: Start difference. First operand 1175 states and 1426 transitions. Second operand 14 states. [2019-10-07 15:17:55,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:17:55,325 INFO L93 Difference]: Finished difference Result 3192 states and 4014 transitions. [2019-10-07 15:17:55,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 15:17:55,325 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 189 [2019-10-07 15:17:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:17:55,338 INFO L225 Difference]: With dead ends: 3192 [2019-10-07 15:17:55,339 INFO L226 Difference]: Without dead ends: 2042 [2019-10-07 15:17:55,344 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 355 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-07 15:17:55,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2019-10-07 15:17:55,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1910. [2019-10-07 15:17:55,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1910 states. [2019-10-07 15:17:55,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2334 transitions. [2019-10-07 15:17:55,463 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2334 transitions. Word has length 189 [2019-10-07 15:17:55,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:17:55,464 INFO L462 AbstractCegarLoop]: Abstraction has 1910 states and 2334 transitions. [2019-10-07 15:17:55,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:17:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2334 transitions. [2019-10-07 15:17:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-07 15:17:55,473 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:17:55,474 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:17:55,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:55,679 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:17:55,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:17:55,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2112061461, now seen corresponding path program 1 times [2019-10-07 15:17:55,680 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:17:55,680 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:55,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:55,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:17:55,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:17:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 41 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-10-07 15:17:56,392 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:17:56,392 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:17:56,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:17:56,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-07 15:17:56,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:17:56,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:56,825 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:56,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:56,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:56,983 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 94 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-07 15:17:56,983 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:17:57,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:57,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:57,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:57,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:57,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,388 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 15:17:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 47 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 15:17:58,628 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:17:58,673 INFO L162 IcfgInterpreter]: Started Sifa with 111 locations of interest [2019-10-07 15:17:58,674 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:17:58,681 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:17:58,703 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:17:58,704 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:18:06,551 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:18:08,259 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-07 15:18:08,398 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:18:08,519 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:18:08,651 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-07 15:18:08,919 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:09,103 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:09,325 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:09,601 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:09,998 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-07 15:18:10,169 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:10,346 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:10,476 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:10,603 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:10,753 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 15:18:10,761 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-07 15:18:11,034 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-07 15:18:11,036 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 550 for LOIs [2019-10-07 15:18:11,161 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:11,267 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:11,405 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:11,553 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:11,687 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:11,814 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:11,956 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:12,065 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:12,188 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:12,414 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 550 [2019-10-07 15:18:12,527 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:12,664 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:12,788 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:12,898 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:13,097 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:13,200 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:13,420 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:13,533 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:13,761 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:13,887 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:14,112 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:14,215 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:14,437 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:14,540 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:14,656 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:14,806 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:14,910 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:15,133 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:15,346 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:15,465 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:15,591 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 550 [2019-10-07 15:18:15,811 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:15,952 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:16,063 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:16,186 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:16,444 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:16,593 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:16,826 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:16,956 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:17,067 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:17,187 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:17,341 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:17,454 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:17,578 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:17,808 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:17,919 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:18,062 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:18,252 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:18,364 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:18,487 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:18,601 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:18,724 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:18,874 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:18,991 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:19,103 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:19,228 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:19,355 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:19,486 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:19,631 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:19,830 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:18:19,957 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:20,082 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:20,194 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:20,304 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:20,431 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:20,655 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:20,763 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:20,890 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:21,116 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:21,225 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:21,346 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:21,455 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:21,565 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:21,687 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:21,906 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:18:22,019 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:22,151 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:22,586 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:22,887 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:23,223 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:23,713 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:23,904 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:24,044 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:24,250 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-07 15:18:24,384 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:24,514 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:24,715 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-07 15:18:24,833 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:24,966 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:25,385 WARN L191 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:25,660 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:25,979 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:26,481 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:26,668 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:26,879 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:27,005 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:27,115 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:27,233 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:27,610 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:27,821 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:28,016 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:28,241 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:28,352 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:28,477 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:28,587 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:28,699 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:28,819 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:29,038 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:29,148 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:29,272 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:29,480 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:18:29,591 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:29,714 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:29,914 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:30,026 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:30,149 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:30,349 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-07 15:18:30,460 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:30,586 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:30,809 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:30,919 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:31,040 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:31,243 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:31,353 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:31,474 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:31,590 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:31,700 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:31,819 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:32,033 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-07 15:18:32,145 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:32,270 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:32,466 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:32,576 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:32,703 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:32,911 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:33,023 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:33,149 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:33,369 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:33,478 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:33,602 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:33,818 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:33,930 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:34,050 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:34,253 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:34,364 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:34,486 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:34,599 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:34,708 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:34,829 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:35,039 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:35,151 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:35,276 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:35,393 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:35,505 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:35,631 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:35,828 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:35,948 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:36,071 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:36,273 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:36,383 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:36,512 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:36,702 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:18:36,815 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:36,940 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:37,149 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:37,262 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:37,382 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:37,582 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:18:37,694 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:37,814 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:37,922 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:38,030 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:38,147 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:38,353 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:38,473 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:38,608 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:38,813 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:38,922 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:39,051 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:39,251 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 566 [2019-10-07 15:18:39,360 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:39,481 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:39,682 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-07 15:18:39,795 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:18:39,924 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:40,117 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:18:40,227 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:40,352 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:40,551 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:18:40,662 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:40,794 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:40,990 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-07 15:18:41,106 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:41,230 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 15:18:41,233 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 548 for LOIs [2019-10-07 15:18:41,337 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:18:41,562 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:41,896 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:42,067 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 550 [2019-10-07 15:18:42,288 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:42,603 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:42,610 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-10-07 15:18:42,930 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:18:43,069 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 15:18:43,291 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:43,619 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 15:18:43,796 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 15:18:44,252 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 15:18:44,434 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 15:18:44,689 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 622 [2019-10-07 15:18:44,827 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 15:18:44,970 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 15:18:45,156 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 622 [2019-10-07 15:18:45,409 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:18:45,410 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:18:45,416 INFO L168 Benchmark]: Toolchain (without parser) took 64821.56 ms. Allocated memory was 145.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 100.5 MB in the beginning and 751.0 MB in the end (delta: -650.5 MB). Peak memory consumption was 503.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:45,417 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 15:18:45,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.73 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 168.3 MB in the end (delta: -68.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:45,418 INFO L168 Benchmark]: Boogie Preprocessor took 90.92 ms. Allocated memory is still 202.9 MB. Free memory was 168.3 MB in the beginning and 163.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:45,418 INFO L168 Benchmark]: RCFGBuilder took 1842.91 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 163.7 MB in the beginning and 140.3 MB in the end (delta: 23.3 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:45,418 INFO L168 Benchmark]: TraceAbstraction took 62190.74 ms. Allocated memory was 235.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 140.3 MB in the beginning and 751.0 MB in the end (delta: -610.7 MB). Peak memory consumption was 452.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:18:45,422 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.73 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 168.3 MB in the end (delta: -68.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.92 ms. Allocated memory is still 202.9 MB. Free memory was 168.3 MB in the beginning and 163.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1842.91 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 163.7 MB in the beginning and 140.3 MB in the end (delta: 23.3 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 62190.74 ms. Allocated memory was 235.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 140.3 MB in the beginning and 751.0 MB in the end (delta: -610.7 MB). Peak memory consumption was 452.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...