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_spec1_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:14:38,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:14:38,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:14:38,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:14:38,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:14:38,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:14:38,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:14:38,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:14:38,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:14:38,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:14:38,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:14:38,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:14:38,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:14:38,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:14:38,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:14:38,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:14:38,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:14:38,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:14:38,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:14:38,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:14:38,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:14:38,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:14:38,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:14:38,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:14:38,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:14:38,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:14:38,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:14:38,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:14:38,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:14:38,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:14:38,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:14:38,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:14:38,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:14:38,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:14:38,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:14:38,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:14:38,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:14:38,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:14:38,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:14:38,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:14:38,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:14:38,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:14:38,447 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:14:38,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:14:38,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:14:38,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:14:38,450 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:14:38,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:14:38,450 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:14:38,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:14:38,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:14:38,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:14:38,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:14:38,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:14:38,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:14:38,453 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:14:38,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:14:38,454 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:14:38,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:14:38,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:14:38,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:14:38,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:14:38,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:14:38,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:14:38,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:14:38,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:14:38,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:14:38,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:14:38,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:14:38,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:14:38,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:14:38,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:14:38,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:14:38,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:14:38,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:14:38,815 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:14:38,816 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-13 23:14:38,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96532e11d/c2e82f8fa86240d0afd5182518f23bfc/FLAG3135f465e [2019-10-13 23:14:39,387 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:14:39,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-13 23:14:39,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96532e11d/c2e82f8fa86240d0afd5182518f23bfc/FLAG3135f465e [2019-10-13 23:14:39,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96532e11d/c2e82f8fa86240d0afd5182518f23bfc [2019-10-13 23:14:39,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:14:39,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:14:39,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:39,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:14:39,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:14:39,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4264f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39, skipping insertion in model container [2019-10-13 23:14:39,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,715 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:14:39,777 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:14:40,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:40,280 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:14:40,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:40,410 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:14:40,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40 WrapperNode [2019-10-13 23:14:40,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:40,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:14:40,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:14:40,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:14:40,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... [2019-10-13 23:14:40,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:14:40,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:14:40,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:14:40,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:14:40,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:14:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:14:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:14:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:14:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:14:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:14:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:14:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:14:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:14:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:14:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:14:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:14:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:14:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:14:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:14:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:14:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:14:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:14:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:14:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:14:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:14:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:14:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:14:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:14:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:14:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:14:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:14:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:14:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:14:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:14:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:14:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:14:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:14:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:14:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:14:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:14:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:14:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:14:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:14:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:14:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:14:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:14:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:14:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:14:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:14:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:14:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:14:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:14:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:14:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:14:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:14:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:14:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:14:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:14:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:14:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:14:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:14:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:14:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:14:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:14:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:14:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:14:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:14:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:14:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:14:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:14:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:14:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:14:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:14:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:14:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:14:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:14:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:14:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:14:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:14:42,344 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:14:42,345 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:14:42,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:42 BoogieIcfgContainer [2019-10-13 23:14:42,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:14:42,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:14:42,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:14:42,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:14:42,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:14:39" (1/3) ... [2019-10-13 23:14:42,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f305646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:42, skipping insertion in model container [2019-10-13 23:14:42,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:40" (2/3) ... [2019-10-13 23:14:42,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f305646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:42, skipping insertion in model container [2019-10-13 23:14:42,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:42" (3/3) ... [2019-10-13 23:14:42,360 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2019-10-13 23:14:42,371 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:14:42,385 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:14:42,397 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:14:42,437 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:14:42,438 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:14:42,438 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:14:42,438 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:14:42,438 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:14:42,438 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:14:42,438 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:14:42,439 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:14:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-10-13 23:14:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:14:42,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:42,473 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:42,476 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:42,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:42,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1144410370, now seen corresponding path program 1 times [2019-10-13 23:14:42,493 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:42,494 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548011911] [2019-10-13 23:14:42,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:42,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:42,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548011911] [2019-10-13 23:14:42,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:42,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:14:42,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761262645] [2019-10-13 23:14:42,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:14:42,883 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:42,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:14:42,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:14:42,901 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-10-13 23:14:42,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:42,948 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2019-10-13 23:14:42,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:14:42,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:14:42,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:42,964 INFO L225 Difference]: With dead ends: 241 [2019-10-13 23:14:42,964 INFO L226 Difference]: Without dead ends: 121 [2019-10-13 23:14:42,969 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:14:42,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-13 23:14:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-13 23:14:43,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-13 23:14:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2019-10-13 23:14:43,030 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 42 [2019-10-13 23:14:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:43,031 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2019-10-13 23:14:43,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:14:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2019-10-13 23:14:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:14:43,035 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:43,035 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:43,036 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:43,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:43,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1234064028, now seen corresponding path program 1 times [2019-10-13 23:14:43,036 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:43,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781166112] [2019-10-13 23:14:43,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:43,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:43,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781166112] [2019-10-13 23:14:43,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:43,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:43,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272692011] [2019-10-13 23:14:43,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:43,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:43,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:43,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:43,171 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 3 states. [2019-10-13 23:14:43,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:43,220 INFO L93 Difference]: Finished difference Result 195 states and 222 transitions. [2019-10-13 23:14:43,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:43,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:14:43,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:43,224 INFO L225 Difference]: With dead ends: 195 [2019-10-13 23:14:43,225 INFO L226 Difference]: Without dead ends: 113 [2019-10-13 23:14:43,228 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-13 23:14:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-13 23:14:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-13 23:14:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2019-10-13 23:14:43,257 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 43 [2019-10-13 23:14:43,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:43,258 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2019-10-13 23:14:43,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:43,259 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2019-10-13 23:14:43,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:14:43,263 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:43,265 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:43,266 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:43,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:43,266 INFO L82 PathProgramCache]: Analyzing trace with hash -25820174, now seen corresponding path program 1 times [2019-10-13 23:14:43,266 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:43,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410180254] [2019-10-13 23:14:43,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:43,518 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410180254] [2019-10-13 23:14:43,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:43,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:14:43,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323702666] [2019-10-13 23:14:43,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:14:43,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:43,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:14:43,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:14:43,520 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 7 states. [2019-10-13 23:14:43,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:43,860 INFO L93 Difference]: Finished difference Result 204 states and 233 transitions. [2019-10-13 23:14:43,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:14:43,862 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-13 23:14:43,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:43,864 INFO L225 Difference]: With dead ends: 204 [2019-10-13 23:14:43,864 INFO L226 Difference]: Without dead ends: 113 [2019-10-13 23:14:43,865 INFO L600 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 [2019-10-13 23:14:43,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-13 23:14:43,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-13 23:14:43,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-13 23:14:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2019-10-13 23:14:43,891 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 46 [2019-10-13 23:14:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:43,892 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2019-10-13 23:14:43,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:14:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2019-10-13 23:14:43,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 23:14:43,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:43,901 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:43,902 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:43,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1368748269, now seen corresponding path program 1 times [2019-10-13 23:14:43,902 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:43,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589790060] [2019-10-13 23:14:43,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:43,994 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589790060] [2019-10-13 23:14:43,994 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:43,995 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:14:43,995 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826384103] [2019-10-13 23:14:43,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:14:43,996 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:43,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:14:43,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:14:43,996 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand 5 states. [2019-10-13 23:14:44,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:44,502 INFO L93 Difference]: Finished difference Result 294 states and 344 transitions. [2019-10-13 23:14:44,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:14:44,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-10-13 23:14:44,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:44,506 INFO L225 Difference]: With dead ends: 294 [2019-10-13 23:14:44,506 INFO L226 Difference]: Without dead ends: 203 [2019-10-13 23:14:44,511 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:14:44,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-10-13 23:14:44,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2019-10-13 23:14:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-10-13 23:14:44,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 205 transitions. [2019-10-13 23:14:44,564 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 205 transitions. Word has length 59 [2019-10-13 23:14:44,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:44,565 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 205 transitions. [2019-10-13 23:14:44,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:14:44,565 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 205 transitions. [2019-10-13 23:14:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-13 23:14:44,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:44,567 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:44,567 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:44,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:44,569 INFO L82 PathProgramCache]: Analyzing trace with hash -508188684, now seen corresponding path program 1 times [2019-10-13 23:14:44,569 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:44,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266825046] [2019-10-13 23:14:44,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:44,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266825046] [2019-10-13 23:14:44,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:44,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:14:44,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611824552] [2019-10-13 23:14:44,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:14:44,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:44,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:14:44,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:14:44,695 INFO L87 Difference]: Start difference. First operand 186 states and 205 transitions. Second operand 6 states. [2019-10-13 23:14:44,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:44,904 INFO L93 Difference]: Finished difference Result 500 states and 568 transitions. [2019-10-13 23:14:44,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:14:44,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-10-13 23:14:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:44,910 INFO L225 Difference]: With dead ends: 500 [2019-10-13 23:14:44,910 INFO L226 Difference]: Without dead ends: 336 [2019-10-13 23:14:44,911 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:14:44,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-13 23:14:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 326. [2019-10-13 23:14:44,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-13 23:14:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 359 transitions. [2019-10-13 23:14:44,945 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 359 transitions. Word has length 68 [2019-10-13 23:14:44,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:44,946 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 359 transitions. [2019-10-13 23:14:44,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:14:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 359 transitions. [2019-10-13 23:14:44,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-13 23:14:44,948 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:44,948 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:44,948 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:44,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:44,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1063035098, now seen corresponding path program 1 times [2019-10-13 23:14:44,949 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:44,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350804343] [2019-10-13 23:14:44,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:45,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350804343] [2019-10-13 23:14:45,049 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:45,049 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:14:45,049 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220801333] [2019-10-13 23:14:45,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:14:45,050 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:45,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:14:45,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:14:45,051 INFO L87 Difference]: Start difference. First operand 326 states and 359 transitions. Second operand 7 states. [2019-10-13 23:14:45,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:45,639 INFO L93 Difference]: Finished difference Result 356 states and 404 transitions. [2019-10-13 23:14:45,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:14:45,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2019-10-13 23:14:45,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:45,643 INFO L225 Difference]: With dead ends: 356 [2019-10-13 23:14:45,643 INFO L226 Difference]: Without dead ends: 353 [2019-10-13 23:14:45,644 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:14:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-10-13 23:14:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 326. [2019-10-13 23:14:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-13 23:14:45,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 358 transitions. [2019-10-13 23:14:45,679 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 358 transitions. Word has length 71 [2019-10-13 23:14:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:45,682 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 358 transitions. [2019-10-13 23:14:45,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:14:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 358 transitions. [2019-10-13 23:14:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-13 23:14:45,685 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:45,685 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:45,685 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:45,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1507615519, now seen corresponding path program 1 times [2019-10-13 23:14:45,686 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:45,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896162201] [2019-10-13 23:14:45,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:45,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:45,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:45,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:14:45,922 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896162201] [2019-10-13 23:14:45,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937519968] [2019-10-13 23:14:45,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:46,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 23:14:46,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:46,216 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:14:46,797 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:14:46,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 23 [2019-10-13 23:14:46,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282736595] [2019-10-13 23:14:46,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:14:46,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:46,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:14:46,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:14:46,799 INFO L87 Difference]: Start difference. First operand 326 states and 358 transitions. Second operand 11 states. [2019-10-13 23:14:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:47,430 INFO L93 Difference]: Finished difference Result 749 states and 855 transitions. [2019-10-13 23:14:47,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:14:47,431 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2019-10-13 23:14:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:47,435 INFO L225 Difference]: With dead ends: 749 [2019-10-13 23:14:47,435 INFO L226 Difference]: Without dead ends: 445 [2019-10-13 23:14:47,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2019-10-13 23:14:47,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-13 23:14:47,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 437. [2019-10-13 23:14:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-13 23:14:47,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 483 transitions. [2019-10-13 23:14:47,468 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 483 transitions. Word has length 84 [2019-10-13 23:14:47,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:47,469 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 483 transitions. [2019-10-13 23:14:47,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:14:47,469 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 483 transitions. [2019-10-13 23:14:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 23:14:47,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:47,473 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:47,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:47,692 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:47,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:47,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1609686826, now seen corresponding path program 1 times [2019-10-13 23:14:47,693 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:47,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737463978] [2019-10-13 23:14:47,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:47,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:47,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:14:47,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737463978] [2019-10-13 23:14:47,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860668856] [2019-10-13 23:14:47,998 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 [2019-10-13 23:14:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:48,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-13 23:14:48,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:48,381 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:48,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:48,532 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:14:48,533 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:49,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,842 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:14:50,153 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:14:50,154 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-13 23:14:50,154 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460006198] [2019-10-13 23:14:50,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:14:50,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:50,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:14:50,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 23:14:50,156 INFO L87 Difference]: Start difference. First operand 437 states and 483 transitions. Second operand 14 states. [2019-10-13 23:14:52,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:52,492 INFO L93 Difference]: Finished difference Result 1131 states and 1322 transitions. [2019-10-13 23:14:52,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:14:52,492 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 130 [2019-10-13 23:14:52,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:52,498 INFO L225 Difference]: With dead ends: 1131 [2019-10-13 23:14:52,498 INFO L226 Difference]: Without dead ends: 716 [2019-10-13 23:14:52,500 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 237 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=386, Invalid=2476, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 23:14:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2019-10-13 23:14:52,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 683. [2019-10-13 23:14:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-10-13 23:14:52,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 778 transitions. [2019-10-13 23:14:52,549 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 778 transitions. Word has length 130 [2019-10-13 23:14:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:52,550 INFO L462 AbstractCegarLoop]: Abstraction has 683 states and 778 transitions. [2019-10-13 23:14:52,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:14:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 778 transitions. [2019-10-13 23:14:52,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:14:52,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:52,554 INFO L380 BasicCegarLoop]: trace histogram [3, 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, 1, 1] [2019-10-13 23:14:52,759 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:52,760 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:52,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:52,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1315888121, now seen corresponding path program 1 times [2019-10-13 23:14:52,761 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:52,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086708630] [2019-10-13 23:14:52,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:52,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:52,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:14:53,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086708630] [2019-10-13 23:14:53,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698319342] [2019-10-13 23:14:53,170 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 [2019-10-13 23:14:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:53,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-13 23:14:53,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:53,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:14:53,677 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:54,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,104 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:14:54,640 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2030528952] [2019-10-13 23:14:54,671 INFO L162 IcfgInterpreter]: Started Sifa with 106 locations of interest [2019-10-13 23:14:54,672 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:14:54,679 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:14:54,687 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:14:54,693 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:15:05,527 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:15:07,272 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:15:07,418 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:07,671 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:07,828 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:08,122 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:08,340 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:08,532 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:08,749 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:09,025 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:15:09,131 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:09,306 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:09,456 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:09,586 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:09,700 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:09,710 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:15:09,960 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-13 23:15:10,075 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,188 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,313 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:10,470 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,572 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,708 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:10,849 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,953 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:11,108 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:11,414 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-13 23:15:11,579 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:11,705 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:11,837 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:12,059 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,166 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:12,273 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:12,395 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,538 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:12,640 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:12,763 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:12,965 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:13,083 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,210 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:13,429 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,531 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:13,637 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:13,755 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,861 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:13,993 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:14,114 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:14,317 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:14,437 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:14,639 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:14,781 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:14,935 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:15,048 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:15,199 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:15,408 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:15:15,518 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:15,677 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:15,787 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:15,899 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,020 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:16,205 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:16,339 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:16,464 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:16,692 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:15:16,801 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:16,979 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:17,181 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:15:17,293 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:17,419 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:17,547 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:17,673 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:15:17,804 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:17,915 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:18,029 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:18,156 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:18,292 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:18,409 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:18,541 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:18,742 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-13 23:15:18,851 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:18,975 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:19,085 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:19,194 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:15:19,319 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:15:19,744 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:15:19,854 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556