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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:17:00,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:17:00,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:17:00,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:17:00,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:17:00,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:17:00,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:17:00,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:17:00,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:17:00,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:17:00,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:17:00,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:17:00,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:17:00,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:17:00,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:17:00,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:17:00,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:17:00,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:17:00,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:17:00,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:17:00,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:17:00,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:17:00,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:17:00,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:17:00,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:17:00,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:17:00,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:17:00,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:17:00,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:17:00,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:17:00,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:17:00,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:17:00,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:17:00,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:17:00,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:17:00,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:17:00,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:17:00,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:17:00,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:17:00,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:17:00,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:17:00,521 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 23:17:00,546 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:17:00,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:17:00,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:17:00,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:17:00,549 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:17:00,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:17:00,549 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:17:00,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:17:00,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:17:00,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:17:00,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:17:00,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:17:00,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:17:00,551 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:17:00,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:17:00,552 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:17:00,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:17:00,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:17:00,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:17:00,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:17:00,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:17:00,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:17:00,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:17:00,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:17:00,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:17:00,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:17:00,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:17:00,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:17:00,555 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 23:17:00,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:17:00,840 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:17:00,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:17:00,846 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:17:00,846 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:17:00,847 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-10-13 23:17:00,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c771b16/40cf5015298549ed8bae4d9d2bf26fd9/FLAGd2891351f [2019-10-13 23:17:01,373 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:17:01,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-10-13 23:17:01,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c771b16/40cf5015298549ed8bae4d9d2bf26fd9/FLAGd2891351f [2019-10-13 23:17:01,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c771b16/40cf5015298549ed8bae4d9d2bf26fd9 [2019-10-13 23:17:01,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:17:01,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:17:01,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:01,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:17:01,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:17:01,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:01" (1/1) ... [2019-10-13 23:17:01,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6885b406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:01, skipping insertion in model container [2019-10-13 23:17:01,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:17:01" (1/1) ... [2019-10-13 23:17:01,754 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:17:01,817 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:17:02,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:02,270 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:17:02,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:17:02,445 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:17:02,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02 WrapperNode [2019-10-13 23:17:02,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:17:02,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:17:02,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:17:02,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:17:02,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (1/1) ... [2019-10-13 23:17:02,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (1/1) ... [2019-10-13 23:17:02,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (1/1) ... [2019-10-13 23:17:02,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (1/1) ... [2019-10-13 23:17:02,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (1/1) ... [2019-10-13 23:17:02,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (1/1) ... [2019-10-13 23:17:02,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (1/1) ... [2019-10-13 23:17:02,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:17:02,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:17:02,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:17:02,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:17:02,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (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 23:17:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:17:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:17:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:17:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:17:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:17:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:17:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:17:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:17:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:17:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:17:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:17:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:17:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:17:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:17:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:17:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:17:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:17:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:17:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:17:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:17:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:17:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:17:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:17:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:17:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:17:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:17:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:17:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:17:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:17:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:17:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:17:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:17:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:17:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:17:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:17:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:17:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:17:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:17:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:17:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:17:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:17:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:17:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:17:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:17:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:17:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:17:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:17:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:17:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:17:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:17:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:17:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:17:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:17:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:17:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:17:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:17:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:17:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:17:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:17:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:17:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:17:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:17:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:17:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:17:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:17:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:17:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:17:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:17:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:17:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:17:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:17:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:17:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:17:04,243 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:17:04,244 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:17:04,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:04 BoogieIcfgContainer [2019-10-13 23:17:04,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:17:04,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:17:04,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:17:04,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:17:04,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:17:01" (1/3) ... [2019-10-13 23:17:04,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5923448b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:04, skipping insertion in model container [2019-10-13 23:17:04,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:17:02" (2/3) ... [2019-10-13 23:17:04,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5923448b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:04, skipping insertion in model container [2019-10-13 23:17:04,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:04" (3/3) ... [2019-10-13 23:17:04,254 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2019-10-13 23:17:04,264 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:17:04,273 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:17:04,285 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:04,324 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:04,324 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:04,325 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:04,325 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:04,325 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:04,325 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:04,326 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:04,326 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:04,354 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2019-10-13 23:17:04,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:04,366 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:04,368 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 23:17:04,372 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:04,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:04,379 INFO L82 PathProgramCache]: Analyzing trace with hash -54697865, now seen corresponding path program 1 times [2019-10-13 23:17:04,388 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:04,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338006997] [2019-10-13 23:17:04,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:04,790 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 23:17:04,791 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338006997] [2019-10-13 23:17:04,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:04,793 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:04,793 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641321929] [2019-10-13 23:17:04,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:04,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:04,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:04,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:04,809 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2019-10-13 23:17:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:04,856 INFO L93 Difference]: Finished difference Result 245 states and 290 transitions. [2019-10-13 23:17:04,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:04,858 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:04,871 INFO L225 Difference]: With dead ends: 245 [2019-10-13 23:17:04,871 INFO L226 Difference]: Without dead ends: 123 [2019-10-13 23:17:04,876 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 23:17:04,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-13 23:17:04,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-13 23:17:04,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-13 23:17:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2019-10-13 23:17:04,930 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 42 [2019-10-13 23:17:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:04,931 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2019-10-13 23:17:04,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2019-10-13 23:17:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:04,935 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:04,935 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 23:17:04,935 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:04,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:04,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1882335780, now seen corresponding path program 1 times [2019-10-13 23:17:04,936 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:04,936 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175226439] [2019-10-13 23:17:04,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:05,078 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 23:17:05,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175226439] [2019-10-13 23:17:05,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:05,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:05,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577630670] [2019-10-13 23:17:05,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:05,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:05,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:05,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:05,083 INFO L87 Difference]: Start difference. First operand 123 states and 139 transitions. Second operand 3 states. [2019-10-13 23:17:05,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:05,108 INFO L93 Difference]: Finished difference Result 199 states and 224 transitions. [2019-10-13 23:17:05,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:05,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:05,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:05,112 INFO L225 Difference]: With dead ends: 199 [2019-10-13 23:17:05,113 INFO L226 Difference]: Without dead ends: 115 [2019-10-13 23:17:05,114 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 23:17:05,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-13 23:17:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-10-13 23:17:05,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-13 23:17:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2019-10-13 23:17:05,130 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 43 [2019-10-13 23:17:05,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:05,130 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2019-10-13 23:17:05,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:05,131 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2019-10-13 23:17:05,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:17:05,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:05,133 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 23:17:05,133 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,134 INFO L82 PathProgramCache]: Analyzing trace with hash 829023992, now seen corresponding path program 1 times [2019-10-13 23:17:05,134 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938512656] [2019-10-13 23:17:05,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:05,312 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 23:17:05,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938512656] [2019-10-13 23:17:05,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:05,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:05,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699915372] [2019-10-13 23:17:05,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:05,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:05,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:05,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:05,316 INFO L87 Difference]: Start difference. First operand 115 states and 128 transitions. Second operand 7 states. [2019-10-13 23:17:05,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:05,579 INFO L93 Difference]: Finished difference Result 208 states and 235 transitions. [2019-10-13 23:17:05,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:17:05,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-13 23:17:05,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:05,582 INFO L225 Difference]: With dead ends: 208 [2019-10-13 23:17:05,582 INFO L226 Difference]: Without dead ends: 115 [2019-10-13 23:17:05,583 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:05,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-13 23:17:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-10-13 23:17:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-13 23:17:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2019-10-13 23:17:05,597 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 46 [2019-10-13 23:17:05,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:05,598 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2019-10-13 23:17:05,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2019-10-13 23:17:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 23:17:05,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:05,600 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 23:17:05,601 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,601 INFO L82 PathProgramCache]: Analyzing trace with hash 910300140, now seen corresponding path program 1 times [2019-10-13 23:17:05,601 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602931720] [2019-10-13 23:17:05,602 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,602 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:05,727 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 23:17:05,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602931720] [2019-10-13 23:17:05,728 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:05,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:17:05,728 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736397546] [2019-10-13 23:17:05,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:17:05,729 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:05,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:17:05,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:17:05,733 INFO L87 Difference]: Start difference. First operand 115 states and 127 transitions. Second operand 5 states. [2019-10-13 23:17:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:06,190 INFO L93 Difference]: Finished difference Result 298 states and 346 transitions. [2019-10-13 23:17:06,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:06,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-10-13 23:17:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:06,198 INFO L225 Difference]: With dead ends: 298 [2019-10-13 23:17:06,198 INFO L226 Difference]: Without dead ends: 205 [2019-10-13 23:17:06,201 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 23:17:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-10-13 23:17:06,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 188. [2019-10-13 23:17:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2019-10-13 23:17:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 206 transitions. [2019-10-13 23:17:06,275 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 206 transitions. Word has length 59 [2019-10-13 23:17:06,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:06,276 INFO L462 AbstractCegarLoop]: Abstraction has 188 states and 206 transitions. [2019-10-13 23:17:06,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:17:06,276 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 206 transitions. [2019-10-13 23:17:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-13 23:17:06,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:06,279 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 23:17:06,279 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:06,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:06,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1863277608, now seen corresponding path program 1 times [2019-10-13 23:17:06,282 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:06,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659161212] [2019-10-13 23:17:06,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,445 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 23:17:06,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659161212] [2019-10-13 23:17:06,446 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:06,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:06,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330811955] [2019-10-13 23:17:06,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:06,449 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:06,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:06,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:06,450 INFO L87 Difference]: Start difference. First operand 188 states and 206 transitions. Second operand 10 states. [2019-10-13 23:17:06,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:06,877 INFO L93 Difference]: Finished difference Result 568 states and 651 transitions. [2019-10-13 23:17:06,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:06,878 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2019-10-13 23:17:06,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:06,883 INFO L225 Difference]: With dead ends: 568 [2019-10-13 23:17:06,883 INFO L226 Difference]: Without dead ends: 402 [2019-10-13 23:17:06,884 INFO L600 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 [2019-10-13 23:17:06,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-13 23:17:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 388. [2019-10-13 23:17:06,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-10-13 23:17:06,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 432 transitions. [2019-10-13 23:17:06,921 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 432 transitions. Word has length 68 [2019-10-13 23:17:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:06,921 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 432 transitions. [2019-10-13 23:17:06,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:06,921 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 432 transitions. [2019-10-13 23:17:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 23:17:06,925 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:06,925 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:06,926 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1025437802, now seen corresponding path program 1 times [2019-10-13 23:17:06,926 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:06,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152770167] [2019-10-13 23:17:06,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:06,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:07,107 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:17:07,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152770167] [2019-10-13 23:17:07,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76330401] [2019-10-13 23:17:07,108 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 23:17:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:07,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 23:17:07,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:07,447 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:07,694 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:17:07,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:17:07,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-13 23:17:07,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567879079] [2019-10-13 23:17:07,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:07,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:07,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:07,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:17:07,698 INFO L87 Difference]: Start difference. First operand 388 states and 432 transitions. Second operand 3 states. [2019-10-13 23:17:07,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:07,770 INFO L93 Difference]: Finished difference Result 757 states and 844 transitions. [2019-10-13 23:17:07,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:07,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-13 23:17:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:07,778 INFO L225 Difference]: With dead ends: 757 [2019-10-13 23:17:07,778 INFO L226 Difference]: Without dead ends: 391 [2019-10-13 23:17:07,780 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:17:07,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-13 23:17:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 355. [2019-10-13 23:17:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-13 23:17:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 380 transitions. [2019-10-13 23:17:07,858 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 380 transitions. Word has length 130 [2019-10-13 23:17:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:07,861 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 380 transitions. [2019-10-13 23:17:07,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 380 transitions. [2019-10-13 23:17:07,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-13 23:17:07,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:07,868 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:08,072 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:08,072 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:08,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:08,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1716243847, now seen corresponding path program 1 times [2019-10-13 23:17:08,073 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:08,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007645880] [2019-10-13 23:17:08,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:08,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 23:17:08,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007645880] [2019-10-13 23:17:08,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470801676] [2019-10-13 23:17:08,192 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 23:17:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:08,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:08,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:08,423 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:17:08,423 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 23:17:08,578 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:08,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:08,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607337278] [2019-10-13 23:17:08,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:08,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:08,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:08,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:08,580 INFO L87 Difference]: Start difference. First operand 355 states and 380 transitions. Second operand 7 states. [2019-10-13 23:17:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:08,780 INFO L93 Difference]: Finished difference Result 364 states and 389 transitions. [2019-10-13 23:17:08,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:08,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2019-10-13 23:17:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:08,784 INFO L225 Difference]: With dead ends: 364 [2019-10-13 23:17:08,785 INFO L226 Difference]: Without dead ends: 361 [2019-10-13 23:17:08,785 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:17:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-13 23:17:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 355. [2019-10-13 23:17:08,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-13 23:17:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 379 transitions. [2019-10-13 23:17:08,806 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 379 transitions. Word has length 117 [2019-10-13 23:17:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:08,807 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 379 transitions. [2019-10-13 23:17:08,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 379 transitions. [2019-10-13 23:17:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 23:17:08,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:08,809 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:09,013 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:09,014 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:09,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:09,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1803065979, now seen corresponding path program 1 times [2019-10-13 23:17:09,015 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:09,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765454444] [2019-10-13 23:17:09,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:09,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:09,259 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 23:17:09,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765454444] [2019-10-13 23:17:09,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207791962] [2019-10-13 23:17:09,260 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 23:17:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:09,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-13 23:17:09,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:09,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:09,807 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:10,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:11,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:11,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:11,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 23:17:11,390 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:17:11,390 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-13 23:17:11,391 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156986164] [2019-10-13 23:17:11,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:17:11,391 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:11,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:17:11,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 23:17:11,392 INFO L87 Difference]: Start difference. First operand 355 states and 379 transitions. Second operand 14 states. [2019-10-13 23:17:13,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:13,467 INFO L93 Difference]: Finished difference Result 852 states and 963 transitions. [2019-10-13 23:17:13,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:17:13,468 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2019-10-13 23:17:13,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:13,473 INFO L225 Difference]: With dead ends: 852 [2019-10-13 23:17:13,473 INFO L226 Difference]: Without dead ends: 519 [2019-10-13 23:17:13,476 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 232 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=388, Invalid=2474, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 23:17:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-10-13 23:17:13,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 494. [2019-10-13 23:17:13,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-10-13 23:17:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 546 transitions. [2019-10-13 23:17:13,512 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 546 transitions. Word has length 127 [2019-10-13 23:17:13,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:13,513 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 546 transitions. [2019-10-13 23:17:13,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:17:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 546 transitions. [2019-10-13 23:17:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 23:17:13,517 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:13,517 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:13,722 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:13,722 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:13,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:13,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1712874978, now seen corresponding path program 1 times [2019-10-13 23:17:13,723 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:13,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745939075] [2019-10-13 23:17:13,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:13,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:13,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:17:13,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745939075] [2019-10-13 23:17:13,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206849822] [2019-10-13 23:17:13,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:14,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 49 conjunts are in the unsatisfiable core [2019-10-13 23:17:14,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:14,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:14,456 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:14,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:14,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:14,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:14,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,119 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:17:15,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1133756671] [2019-10-13 23:17:15,217 INFO L162 IcfgInterpreter]: Started Sifa with 105 locations of interest [2019-10-13 23:17:15,218 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:15,224 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:15,231 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:15,232 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:24,333 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:25,858 WARN L191 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:25,988 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:26,183 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:26,358 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:26,622 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:26,807 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:26,971 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:27,194 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:27,513 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:27,695 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:27,894 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:28,004 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:28,146 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:28,270 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:28,278 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:28,542 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-13 23:17:28,543 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-13 23:17:28,647 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:28,760 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:28,889 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:29,124 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:29,254 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:29,384 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:29,598 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:29,833 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 542 [2019-10-13 23:17:30,054 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,163 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:30,395 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,705 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:30,910 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:31,038 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,156 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:31,374 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,686 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:31,801 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:32,021 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,331 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,538 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:32,680 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,882 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:32,998 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,126 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,235 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,378 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,592 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:33,700 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,820 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,929 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,036 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,153 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:34,290 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:34,422 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:34,546 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:34,766 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:17:34,878 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:35,003 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:35,197 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:35,313 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:35,433 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:35,562 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:35,672 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:35,797 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:35,908 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,018 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,146 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:36,299 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,410 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,541 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:36,736 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-13 23:17:36,845 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:36,969 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:37,077 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,191 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,311 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:37,629 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:37,745 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,864 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,057 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:38,166 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,310 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,418 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,526 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,685 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:38,899 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:17:39,009 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:39,154 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:39,399 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:39,523 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:39,650 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:39,851 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:39,959 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:40,077 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:40,287 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:40,395 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:40,532 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:40,727 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-13 23:17:40,837 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:40,965 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:41,168 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:41,276 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,395 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,598 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:41,713 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,834 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:41,941 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,050 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,166 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:42,420 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556