/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:33:15,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:33:15,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:33:15,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:33:15,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:33:15,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:33:15,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:33:15,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:33:15,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:33:15,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:33:15,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:33:15,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:33:15,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:33:15,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:33:15,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:33:15,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:33:15,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:33:15,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:33:15,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:33:15,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:33:15,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:33:15,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:33:15,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:33:15,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:33:15,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:33:15,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:33:15,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:33:15,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:33:15,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:33:15,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:33:15,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:33:15,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:33:15,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:33:15,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:33:15,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:33:15,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:33:15,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:33:15,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:33:15,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:33:15,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:33:15,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:33:15,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:33:15,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:33:15,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:33:15,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:33:15,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:33:15,495 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:33:15,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:33:15,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:33:15,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:33:15,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:33:15,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:33:15,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:33:15,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:33:15,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:33:15,497 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:33:15,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:33:15,497 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:33:15,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:33:15,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:33:15,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:33:15,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:33:15,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:33:15,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:33:15,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:33:15,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:33:15,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:33:15,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:33:15,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:33:15,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:33:15,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:33:15,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:33:15,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:33:15,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:33:15,805 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:33:15,805 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:33:15,806 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2019-11-07 04:33:15,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878a95cd1/50e7f2474d62483ea537fbc7b7f2e777/FLAGa3a95489f [2019-11-07 04:33:16,425 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:33:16,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product55.cil.c [2019-11-07 04:33:16,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878a95cd1/50e7f2474d62483ea537fbc7b7f2e777/FLAGa3a95489f [2019-11-07 04:33:16,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878a95cd1/50e7f2474d62483ea537fbc7b7f2e777 [2019-11-07 04:33:16,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:33:16,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:33:16,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:16,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:33:16,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:33:16,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:16" (1/1) ... [2019-11-07 04:33:16,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f3f585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:16, skipping insertion in model container [2019-11-07 04:33:16,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:16" (1/1) ... [2019-11-07 04:33:16,805 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:33:16,845 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:33:17,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:17,321 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:33:17,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:33:17,492 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:33:17,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17 WrapperNode [2019-11-07 04:33:17,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:33:17,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:33:17,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:33:17,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:33:17,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... [2019-11-07 04:33:17,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... [2019-11-07 04:33:17,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... [2019-11-07 04:33:17,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... [2019-11-07 04:33:17,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... [2019-11-07 04:33:17,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... [2019-11-07 04:33:17,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... [2019-11-07 04:33:17,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:33:17,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:33:17,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:33:17,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:33:17,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:33:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:33:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:33:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:33:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:33:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:33:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-07 04:33:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:33:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:33:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:33:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:33:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:33:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:33:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:33:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:33:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-11-07 04:33:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:33:17,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:33:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:33:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:33:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:33:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:33:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:33:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:33:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:33:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:33:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:33:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:33:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:33:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:33:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:33:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:33:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:33:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:33:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:33:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:33:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:33:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:33:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:33:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:33:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:33:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:33:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-11-07 04:33:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:33:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:33:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:33:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-11-07 04:33:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:33:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:33:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:33:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:33:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:33:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:33:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:33:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:33:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:33:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:33:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:33:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:33:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:33:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:33:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:33:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:33:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:33:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:33:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:33:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:33:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:33:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:33:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:33:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:33:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:33:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:33:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:33:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:33:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:33:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:33:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:33:19,177 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:33:19,177 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:33:19,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:19 BoogieIcfgContainer [2019-11-07 04:33:19,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:33:19,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:33:19,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:33:19,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:33:19,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:33:16" (1/3) ... [2019-11-07 04:33:19,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1dd918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:19, skipping insertion in model container [2019-11-07 04:33:19,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:17" (2/3) ... [2019-11-07 04:33:19,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1dd918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:19, skipping insertion in model container [2019-11-07 04:33:19,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:19" (3/3) ... [2019-11-07 04:33:19,188 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2019-11-07 04:33:19,197 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:33:19,206 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:33:19,218 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:33:19,252 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:33:19,252 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:33:19,252 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:33:19,252 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:33:19,253 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:33:19,253 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:33:19,254 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:33:19,254 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:33:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-11-07 04:33:19,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-07 04:33:19,303 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:19,305 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:19,308 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:19,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:19,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1667852070, now seen corresponding path program 1 times [2019-11-07 04:33:19,327 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:19,327 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91660646] [2019-11-07 04:33:19,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:19,720 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91660646] [2019-11-07 04:33:19,721 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:19,722 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:33:19,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068630142] [2019-11-07 04:33:19,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:33:19,730 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:19,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:33:19,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:33:19,750 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2019-11-07 04:33:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:19,838 INFO L93 Difference]: Finished difference Result 257 states and 314 transitions. [2019-11-07 04:33:19,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:33:19,841 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-11-07 04:33:19,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:19,862 INFO L225 Difference]: With dead ends: 257 [2019-11-07 04:33:19,863 INFO L226 Difference]: Without dead ends: 129 [2019-11-07 04:33:19,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:33:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-07 04:33:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-11-07 04:33:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-07 04:33:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 151 transitions. [2019-11-07 04:33:19,959 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 151 transitions. Word has length 42 [2019-11-07 04:33:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:19,960 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 151 transitions. [2019-11-07 04:33:19,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:33:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 151 transitions. [2019-11-07 04:33:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 04:33:19,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:19,969 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:19,970 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:19,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:19,970 INFO L82 PathProgramCache]: Analyzing trace with hash -934226068, now seen corresponding path program 1 times [2019-11-07 04:33:19,971 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:19,971 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368166284] [2019-11-07 04:33:19,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:20,120 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368166284] [2019-11-07 04:33:20,121 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:20,122 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:33:20,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566305905] [2019-11-07 04:33:20,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:33:20,125 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:20,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:33:20,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:33:20,126 INFO L87 Difference]: Start difference. First operand 129 states and 151 transitions. Second operand 3 states. [2019-11-07 04:33:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:20,161 INFO L93 Difference]: Finished difference Result 208 states and 242 transitions. [2019-11-07 04:33:20,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:33:20,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-11-07 04:33:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:20,166 INFO L225 Difference]: With dead ends: 208 [2019-11-07 04:33:20,166 INFO L226 Difference]: Without dead ends: 121 [2019-11-07 04:33:20,171 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:33:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-07 04:33:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-11-07 04:33:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-07 04:33:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 140 transitions. [2019-11-07 04:33:20,198 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 140 transitions. Word has length 43 [2019-11-07 04:33:20,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:20,199 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 140 transitions. [2019-11-07 04:33:20,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:33:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 140 transitions. [2019-11-07 04:33:20,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 04:33:20,207 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:20,207 INFO L410 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] [2019-11-07 04:33:20,208 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1714663435, now seen corresponding path program 1 times [2019-11-07 04:33:20,209 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:20,209 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222905680] [2019-11-07 04:33:20,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:20,453 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222905680] [2019-11-07 04:33:20,453 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:20,453 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:33:20,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692155939] [2019-11-07 04:33:20,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:33:20,454 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:20,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:33:20,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:33:20,455 INFO L87 Difference]: Start difference. First operand 121 states and 140 transitions. Second operand 7 states. [2019-11-07 04:33:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:20,943 INFO L93 Difference]: Finished difference Result 363 states and 433 transitions. [2019-11-07 04:33:20,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:33:20,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-11-07 04:33:20,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:20,952 INFO L225 Difference]: With dead ends: 363 [2019-11-07 04:33:20,952 INFO L226 Difference]: Without dead ends: 264 [2019-11-07 04:33:20,953 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:33:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-11-07 04:33:21,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 256. [2019-11-07 04:33:21,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2019-11-07 04:33:21,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 305 transitions. [2019-11-07 04:33:21,007 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 305 transitions. Word has length 46 [2019-11-07 04:33:21,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:21,008 INFO L462 AbstractCegarLoop]: Abstraction has 256 states and 305 transitions. [2019-11-07 04:33:21,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:33:21,008 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 305 transitions. [2019-11-07 04:33:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-07 04:33:21,010 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:21,010 INFO L410 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] [2019-11-07 04:33:21,010 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:21,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:21,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1924130010, now seen corresponding path program 1 times [2019-11-07 04:33:21,011 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:21,011 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771082427] [2019-11-07 04:33:21,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:21,137 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771082427] [2019-11-07 04:33:21,138 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:21,138 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:33:21,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454928406] [2019-11-07 04:33:21,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:33:21,139 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:21,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:33:21,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:33:21,140 INFO L87 Difference]: Start difference. First operand 256 states and 305 transitions. Second operand 10 states. [2019-11-07 04:33:21,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:21,814 INFO L93 Difference]: Finished difference Result 919 states and 1142 transitions. [2019-11-07 04:33:21,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:33:21,815 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-11-07 04:33:21,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:21,821 INFO L225 Difference]: With dead ends: 919 [2019-11-07 04:33:21,821 INFO L226 Difference]: Without dead ends: 685 [2019-11-07 04:33:21,823 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:33:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-11-07 04:33:21,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 661. [2019-11-07 04:33:21,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-11-07 04:33:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 806 transitions. [2019-11-07 04:33:21,892 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 806 transitions. Word has length 51 [2019-11-07 04:33:21,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:21,892 INFO L462 AbstractCegarLoop]: Abstraction has 661 states and 806 transitions. [2019-11-07 04:33:21,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:33:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 806 transitions. [2019-11-07 04:33:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-07 04:33:21,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:21,896 INFO L410 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] [2019-11-07 04:33:21,896 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:21,897 INFO L82 PathProgramCache]: Analyzing trace with hash 26521400, now seen corresponding path program 1 times [2019-11-07 04:33:21,897 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:21,897 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755181863] [2019-11-07 04:33:21,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:21,991 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755181863] [2019-11-07 04:33:21,991 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:21,992 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:33:21,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353024463] [2019-11-07 04:33:21,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:33:21,993 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:21,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:33:21,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:33:21,994 INFO L87 Difference]: Start difference. First operand 661 states and 806 transitions. Second operand 4 states. [2019-11-07 04:33:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:22,341 INFO L93 Difference]: Finished difference Result 1576 states and 2092 transitions. [2019-11-07 04:33:22,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:33:22,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-11-07 04:33:22,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:22,348 INFO L225 Difference]: With dead ends: 1576 [2019-11-07 04:33:22,348 INFO L226 Difference]: Without dead ends: 937 [2019-11-07 04:33:22,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:33:22,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2019-11-07 04:33:22,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 807. [2019-11-07 04:33:22,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-11-07 04:33:22,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 964 transitions. [2019-11-07 04:33:22,469 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 964 transitions. Word has length 57 [2019-11-07 04:33:22,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:22,471 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 964 transitions. [2019-11-07 04:33:22,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:33:22,472 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 964 transitions. [2019-11-07 04:33:22,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-11-07 04:33:22,476 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:22,476 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:33:22,476 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:22,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:22,477 INFO L82 PathProgramCache]: Analyzing trace with hash 154264185, now seen corresponding path program 1 times [2019-11-07 04:33:22,477 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:22,477 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821015995] [2019-11-07 04:33:22,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 04:33:22,634 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821015995] [2019-11-07 04:33:22,635 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801743992] [2019-11-07 04:33:22,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:33:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:22,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 04:33:22,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:22,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:33:22,891 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:33:22,993 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:33:22,993 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-11-07 04:33:22,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339656832] [2019-11-07 04:33:22,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:33:22,994 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:22,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:33:22,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:33:22,995 INFO L87 Difference]: Start difference. First operand 807 states and 964 transitions. Second operand 7 states. [2019-11-07 04:33:23,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:23,239 INFO L93 Difference]: Finished difference Result 820 states and 980 transitions. [2019-11-07 04:33:23,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:33:23,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-11-07 04:33:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:23,246 INFO L225 Difference]: With dead ends: 820 [2019-11-07 04:33:23,246 INFO L226 Difference]: Without dead ends: 817 [2019-11-07 04:33:23,247 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:33:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2019-11-07 04:33:23,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 807. [2019-11-07 04:33:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-11-07 04:33:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 961 transitions. [2019-11-07 04:33:23,354 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 961 transitions. Word has length 78 [2019-11-07 04:33:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:23,354 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 961 transitions. [2019-11-07 04:33:23,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:33:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 961 transitions. [2019-11-07 04:33:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-07 04:33:23,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:23,359 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:23,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:33:23,565 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:23,565 INFO L82 PathProgramCache]: Analyzing trace with hash -961402505, now seen corresponding path program 1 times [2019-11-07 04:33:23,566 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:23,566 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651913827] [2019-11-07 04:33:23,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 04:33:23,645 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651913827] [2019-11-07 04:33:23,645 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:23,645 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:33:23,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867540392] [2019-11-07 04:33:23,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:33:23,647 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:23,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:33:23,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:33:23,648 INFO L87 Difference]: Start difference. First operand 807 states and 961 transitions. Second operand 4 states. [2019-11-07 04:33:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:23,829 INFO L93 Difference]: Finished difference Result 933 states and 1114 transitions. [2019-11-07 04:33:23,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 04:33:23,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2019-11-07 04:33:23,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:23,833 INFO L225 Difference]: With dead ends: 933 [2019-11-07 04:33:23,833 INFO L226 Difference]: Without dead ends: 356 [2019-11-07 04:33:23,836 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:33:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-11-07 04:33:23,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-11-07 04:33:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-11-07 04:33:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 410 transitions. [2019-11-07 04:33:23,859 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 410 transitions. Word has length 132 [2019-11-07 04:33:23,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:23,862 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 410 transitions. [2019-11-07 04:33:23,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:33:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 410 transitions. [2019-11-07 04:33:23,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-07 04:33:23,865 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:23,865 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:23,865 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:23,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:23,866 INFO L82 PathProgramCache]: Analyzing trace with hash 83467659, now seen corresponding path program 1 times [2019-11-07 04:33:23,866 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:23,866 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783466045] [2019-11-07 04:33:23,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 04:33:24,125 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783466045] [2019-11-07 04:33:24,125 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:33:24,125 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:33:24,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950107619] [2019-11-07 04:33:24,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:33:24,127 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:24,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:33:24,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:33:24,127 INFO L87 Difference]: Start difference. First operand 356 states and 410 transitions. Second operand 14 states. [2019-11-07 04:33:24,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:24,764 INFO L93 Difference]: Finished difference Result 659 states and 789 transitions. [2019-11-07 04:33:24,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:33:24,765 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2019-11-07 04:33:24,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:24,770 INFO L225 Difference]: With dead ends: 659 [2019-11-07 04:33:24,770 INFO L226 Difference]: Without dead ends: 501 [2019-11-07 04:33:24,772 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-11-07 04:33:24,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-11-07 04:33:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 429. [2019-11-07 04:33:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-11-07 04:33:24,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 499 transitions. [2019-11-07 04:33:24,810 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 499 transitions. Word has length 127 [2019-11-07 04:33:24,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:24,811 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 499 transitions. [2019-11-07 04:33:24,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:33:24,811 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 499 transitions. [2019-11-07 04:33:24,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-07 04:33:24,815 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:24,815 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:24,815 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:24,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:24,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1131438099, now seen corresponding path program 1 times [2019-11-07 04:33:24,816 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:24,816 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564893837] [2019-11-07 04:33:24,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 04:33:25,172 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564893837] [2019-11-07 04:33:25,172 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037272542] [2019-11-07 04:33:25,172 INFO L94 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 [2019-11-07 04:33:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:25,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-07 04:33:25,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:25,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:25,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:25,777 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:26,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:27,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:27,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:27,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:27,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 04:33:27,667 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 04:33:27,667 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-11-07 04:33:27,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880626378] [2019-11-07 04:33:27,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:33:27,668 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:33:27,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:33:27,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 04:33:27,669 INFO L87 Difference]: Start difference. First operand 429 states and 499 transitions. Second operand 14 states. [2019-11-07 04:33:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:33:30,275 INFO L93 Difference]: Finished difference Result 896 states and 1076 transitions. [2019-11-07 04:33:30,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-07 04:33:30,275 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 133 [2019-11-07 04:33:30,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:33:30,280 INFO L225 Difference]: With dead ends: 896 [2019-11-07 04:33:30,280 INFO L226 Difference]: Without dead ends: 489 [2019-11-07 04:33:30,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 243 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=388, Invalid=2474, Unknown=0, NotChecked=0, Total=2862 [2019-11-07 04:33:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2019-11-07 04:33:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 456. [2019-11-07 04:33:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-11-07 04:33:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 524 transitions. [2019-11-07 04:33:30,311 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 524 transitions. Word has length 133 [2019-11-07 04:33:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:33:30,312 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 524 transitions. [2019-11-07 04:33:30,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:33:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 524 transitions. [2019-11-07 04:33:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-07 04:33:30,314 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:33:30,314 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:33:30,523 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:33:30,523 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:33:30,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:33:30,524 INFO L82 PathProgramCache]: Analyzing trace with hash 22853857, now seen corresponding path program 1 times [2019-11-07 04:33:30,524 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:33:30,524 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503711119] [2019-11-07 04:33:30,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:33:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:33:30,704 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503711119] [2019-11-07 04:33:30,705 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533157930] [2019-11-07 04:33:30,705 INFO L94 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 [2019-11-07 04:33:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:33:30,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 49 conjunts are in the unsatisfiable core [2019-11-07 04:33:30,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:33:31,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:33:31,133 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:33:31,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:31,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:31,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:31,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:31,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:31,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:31,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:33:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 04:33:32,016 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268361684] [2019-11-07 04:33:32,045 INFO L159 IcfgInterpreter]: Started Sifa with 107 locations of interest [2019-11-07 04:33:32,045 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:33:32,052 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:33:32,058 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:33:32,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:33:42,971 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-11-07 04:33:44,616 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:33:44,733 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:44,949 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:45,062 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:45,323 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:33:45,448 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:45,563 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-11-07 04:33:45,772 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-11-07 04:33:45,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-11-07 04:33:45,829 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-11-07 04:33:46,072 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:46,235 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:46,376 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,526 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:46,680 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:46,818 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:46,921 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:47,024 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:47,142 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,297 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:47,412 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:33:47,537 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,727 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:47,866 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,005 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,116 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,243 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,363 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,472 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,615 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,732 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:48,868 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:49,063 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:49,278 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-11-07 04:33:49,483 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:49,598 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:49,722 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:49,841 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:49,977 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:50,095 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:50,305 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:50,437 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:50,561 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:33:50,669 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:50,780 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-11-07 04:33:50,897 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-11-07 04:33:50,916 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 546 for LOIs [2019-11-07 04:33:50,930 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 544 for LOIs [2019-11-07 04:33:51,179 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-11-07 04:33:51,637 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-11-07 04:33:52,161 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 571 [2019-11-07 04:33:52,606 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 574 [2019-11-07 04:33:53,539 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 601 [2019-11-07 04:33:53,760 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 601 [2019-11-07 04:33:54,041 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 602 [2019-11-07 04:33:54,218 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 602 [2019-11-07 04:33:54,527 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 584 [2019-11-07 04:33:54,698 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 583 [2019-11-07 04:33:54,865 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 584