/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 21:39:33,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 21:39:33,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 21:39:33,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 21:39:33,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 21:39:33,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 21:39:33,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 21:39:33,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 21:39:33,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 21:39:33,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 21:39:33,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 21:39:33,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 21:39:33,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 21:39:33,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 21:39:34,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 21:39:34,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 21:39:34,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 21:39:34,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 21:39:34,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 21:39:34,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 21:39:34,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 21:39:34,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 21:39:34,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 21:39:34,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 21:39:34,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 21:39:34,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 21:39:34,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 21:39:34,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 21:39:34,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 21:39:34,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 21:39:34,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 21:39:34,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 21:39:34,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 21:39:34,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 21:39:34,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 21:39:34,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 21:39:34,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 21:39:34,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 21:39:34,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 21:39:34,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 21:39:34,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 21:39:34,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-27 21:39:34,108 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 21:39:34,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 21:39:34,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 21:39:34,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 21:39:34,111 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 21:39:34,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 21:39:34,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 21:39:34,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 21:39:34,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 21:39:34,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 21:39:34,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 21:39:34,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 21:39:34,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 21:39:34,115 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 21:39:34,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 21:39:34,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 21:39:34,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 21:39:34,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 21:39:34,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 21:39:34,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 21:39:34,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 21:39:34,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:39:34,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 21:39:34,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 21:39:34,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 21:39:34,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 21:39:34,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 21:39:34,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 21:39:34,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 21:39:34,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-27 21:39:34,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 21:39:34,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 21:39:34,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 21:39:34,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 21:39:34,579 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 21:39:34,580 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c [2020-08-27 21:39:34,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/748f413bb/2ee1916663bb4b7e8e9c043a0ed4be4b/FLAGcdf8ee2c6 [2020-08-27 21:39:35,313 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 21:39:35,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c [2020-08-27 21:39:35,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/748f413bb/2ee1916663bb4b7e8e9c043a0ed4be4b/FLAGcdf8ee2c6 [2020-08-27 21:39:35,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/748f413bb/2ee1916663bb4b7e8e9c043a0ed4be4b [2020-08-27 21:39:35,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 21:39:35,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 21:39:35,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 21:39:35,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 21:39:35,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 21:39:35,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:39:35" (1/1) ... [2020-08-27 21:39:35,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61445f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:35, skipping insertion in model container [2020-08-27 21:39:35,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:39:35" (1/1) ... [2020-08-27 21:39:35,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 21:39:35,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 21:39:36,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:39:36,174 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 21:39:36,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:39:36,343 INFO L208 MainTranslator]: Completed translation [2020-08-27 21:39:36,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36 WrapperNode [2020-08-27 21:39:36,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 21:39:36,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 21:39:36,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 21:39:36,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 21:39:36,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... [2020-08-27 21:39:36,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... [2020-08-27 21:39:36,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... [2020-08-27 21:39:36,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... [2020-08-27 21:39:36,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... [2020-08-27 21:39:36,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... [2020-08-27 21:39:36,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... [2020-08-27 21:39:36,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 21:39:36,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 21:39:36,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 21:39:36,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 21:39:36,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-27 21:39:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 21:39:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 21:39:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-27 21:39:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-27 21:39:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-27 21:39:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-27 21:39:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-27 21:39:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-27 21:39:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-27 21:39:36,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-27 21:39:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-27 21:39:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-27 21:39:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-27 21:39:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-27 21:39:36,523 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-27 21:39:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-27 21:39:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-27 21:39:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 21:39:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-27 21:39:36,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-27 21:39:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-27 21:39:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-27 21:39:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-27 21:39:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-27 21:39:36,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-27 21:39:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-27 21:39:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-27 21:39:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-27 21:39:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-27 21:39:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-27 21:39:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-27 21:39:36,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-27 21:39:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-27 21:39:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-27 21:39:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-27 21:39:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-27 21:39:36,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-27 21:39:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 21:39:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 21:39:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-27 21:39:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-27 21:39:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-27 21:39:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-27 21:39:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-27 21:39:36,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-27 21:39:36,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-27 21:39:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-27 21:39:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-27 21:39:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-27 21:39:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-27 21:39:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-27 21:39:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-27 21:39:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-27 21:39:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-27 21:39:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-27 21:39:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-27 21:39:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-27 21:39:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-27 21:39:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-27 21:39:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-27 21:39:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-27 21:39:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-27 21:39:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-27 21:39:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-27 21:39:36,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 21:39:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-27 21:39:36,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 21:39:37,635 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 21:39:37,635 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-27 21:39:37,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:39:37 BoogieIcfgContainer [2020-08-27 21:39:37,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 21:39:37,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 21:39:37,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 21:39:37,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 21:39:37,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:39:35" (1/3) ... [2020-08-27 21:39:37,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc5fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:39:37, skipping insertion in model container [2020-08-27 21:39:37,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:39:36" (2/3) ... [2020-08-27 21:39:37,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc5fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:39:37, skipping insertion in model container [2020-08-27 21:39:37,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:39:37" (3/3) ... [2020-08-27 21:39:37,651 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product08.cil.c [2020-08-27 21:39:37,663 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 21:39:37,674 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 21:39:37,696 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 21:39:37,726 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 21:39:37,727 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 21:39:37,727 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 21:39:37,727 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 21:39:37,727 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 21:39:37,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 21:39:37,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 21:39:37,728 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 21:39:37,754 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-08-27 21:39:37,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-27 21:39:37,766 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:39:37,767 INFO L422 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] [2020-08-27 21:39:37,768 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:39:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:39:37,775 INFO L82 PathProgramCache]: Analyzing trace with hash 232346821, now seen corresponding path program 1 times [2020-08-27 21:39:37,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:39:37,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144483283] [2020-08-27 21:39:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:39:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,496 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:39:38,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:39:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:39:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:39:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:39:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:39:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-27 21:39:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-27 21:39:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:39:38,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144483283] [2020-08-27 21:39:38,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:39:38,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-27 21:39:38,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798183903] [2020-08-27 21:39:38,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-27 21:39:38,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:39:38,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-27 21:39:38,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:39:38,727 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 3 states. [2020-08-27 21:39:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:39:39,796 INFO L93 Difference]: Finished difference Result 266 states and 350 transitions. [2020-08-27 21:39:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-27 21:39:39,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-27 21:39:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:39:39,816 INFO L225 Difference]: With dead ends: 266 [2020-08-27 21:39:39,816 INFO L226 Difference]: Without dead ends: 145 [2020-08-27 21:39:39,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:39:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-08-27 21:39:39,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 112. [2020-08-27 21:39:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-08-27 21:39:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2020-08-27 21:39:39,916 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 46 [2020-08-27 21:39:39,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:39:39,917 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2020-08-27 21:39:39,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-27 21:39:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2020-08-27 21:39:39,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-27 21:39:39,921 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:39:39,921 INFO L422 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] [2020-08-27 21:39:39,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 21:39:39,922 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:39:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:39:39,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1830481593, now seen corresponding path program 1 times [2020-08-27 21:39:39,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:39:39,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39089575] [2020-08-27 21:39:39,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:39:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,331 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:39:40,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:39:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:39:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:39:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:39:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:39:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:39:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-27 21:39:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:39:40,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39089575] [2020-08-27 21:39:40,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:39:40,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-27 21:39:40,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291673036] [2020-08-27 21:39:40,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-27 21:39:40,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:39:40,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-27 21:39:40,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-27 21:39:40,388 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 4 states. [2020-08-27 21:39:40,787 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:39:41,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:39:41,529 INFO L93 Difference]: Finished difference Result 189 states and 229 transitions. [2020-08-27 21:39:41,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:39:41,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-27 21:39:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:39:41,532 INFO L225 Difference]: With dead ends: 189 [2020-08-27 21:39:41,533 INFO L226 Difference]: Without dead ends: 129 [2020-08-27 21:39:41,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:39:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-08-27 21:39:41,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 103. [2020-08-27 21:39:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-08-27 21:39:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2020-08-27 21:39:41,566 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 47 [2020-08-27 21:39:41,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:39:41,566 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2020-08-27 21:39:41,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-27 21:39:41,567 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2020-08-27 21:39:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-27 21:39:41,569 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:39:41,569 INFO L422 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] [2020-08-27 21:39:41,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 21:39:41,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:39:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:39:41,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1249539500, now seen corresponding path program 1 times [2020-08-27 21:39:41,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:39:41,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929761076] [2020-08-27 21:39:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:39:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:41,989 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:39:41,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:39:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:42,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:39:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:42,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:39:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:39:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:42,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:39:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:42,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-27 21:39:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-27 21:39:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:39:42,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929761076] [2020-08-27 21:39:42,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:39:42,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-27 21:39:42,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260229172] [2020-08-27 21:39:42,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:39:42,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:39:42,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:39:42,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:39:42,094 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 8 states. [2020-08-27 21:39:42,460 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:39:42,845 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:43,179 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:43,463 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:44,312 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:39:45,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:39:45,895 INFO L93 Difference]: Finished difference Result 360 states and 445 transitions. [2020-08-27 21:39:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-27 21:39:45,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-08-27 21:39:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:39:45,906 INFO L225 Difference]: With dead ends: 360 [2020-08-27 21:39:45,906 INFO L226 Difference]: Without dead ends: 281 [2020-08-27 21:39:45,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-27 21:39:45,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-08-27 21:39:45,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 220. [2020-08-27 21:39:45,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-27 21:39:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 264 transitions. [2020-08-27 21:39:45,972 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 264 transitions. Word has length 52 [2020-08-27 21:39:45,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:39:45,973 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 264 transitions. [2020-08-27 21:39:45,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:39:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 264 transitions. [2020-08-27 21:39:45,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-27 21:39:45,976 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:39:45,976 INFO L422 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] [2020-08-27 21:39:45,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 21:39:45,977 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:39:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:39:45,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1248876172, now seen corresponding path program 1 times [2020-08-27 21:39:45,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:39:45,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351558433] [2020-08-27 21:39:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:39:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,368 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:39:46,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:39:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:39:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:39:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:39:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:39:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:39:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-27 21:39:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 21:39:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:39:46,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351558433] [2020-08-27 21:39:46,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:39:46,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-27 21:39:46,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622769793] [2020-08-27 21:39:46,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-27 21:39:46,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:39:46,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-27 21:39:46,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-27 21:39:46,517 INFO L87 Difference]: Start difference. First operand 220 states and 264 transitions. Second operand 12 states. [2020-08-27 21:39:47,101 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:39:47,520 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:47,807 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:48,118 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:48,825 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:39:49,855 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:50,301 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:39:50,697 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:39:51,027 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-27 21:39:51,355 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:39:51,759 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:39:52,176 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:39:52,510 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:39:53,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:39:53,940 INFO L93 Difference]: Finished difference Result 875 states and 1174 transitions. [2020-08-27 21:39:53,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-27 21:39:53,941 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-08-27 21:39:53,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:39:53,949 INFO L225 Difference]: With dead ends: 875 [2020-08-27 21:39:53,949 INFO L226 Difference]: Without dead ends: 679 [2020-08-27 21:39:53,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-27 21:39:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-08-27 21:39:54,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 582. [2020-08-27 21:39:54,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-08-27 21:39:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 718 transitions. [2020-08-27 21:39:54,096 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 718 transitions. Word has length 57 [2020-08-27 21:39:54,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:39:54,096 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 718 transitions. [2020-08-27 21:39:54,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-27 21:39:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 718 transitions. [2020-08-27 21:39:54,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-27 21:39:54,100 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:39:54,100 INFO L422 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] [2020-08-27 21:39:54,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 21:39:54,101 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:39:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:39:54,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1908801166, now seen corresponding path program 1 times [2020-08-27 21:39:54,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:39:54,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617419683] [2020-08-27 21:39:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:39:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,469 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:39:54,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:39:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:39:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:39:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:39:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:39:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:39:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-27 21:39:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-27 21:39:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-27 21:39:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:39:54,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617419683] [2020-08-27 21:39:54,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:39:54,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-27 21:39:54,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283361196] [2020-08-27 21:39:54,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-27 21:39:54,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:39:54,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-27 21:39:54,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:39:54,579 INFO L87 Difference]: Start difference. First operand 582 states and 718 transitions. Second operand 6 states. [2020-08-27 21:39:54,865 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:39:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:39:55,719 INFO L93 Difference]: Finished difference Result 1027 states and 1340 transitions. [2020-08-27 21:39:55,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-27 21:39:55,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-08-27 21:39:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:39:55,723 INFO L225 Difference]: With dead ends: 1027 [2020-08-27 21:39:55,724 INFO L226 Difference]: Without dead ends: 469 [2020-08-27 21:39:55,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-27 21:39:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-08-27 21:39:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 402. [2020-08-27 21:39:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-08-27 21:39:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 461 transitions. [2020-08-27 21:39:55,801 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 461 transitions. Word has length 61 [2020-08-27 21:39:55,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:39:55,801 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 461 transitions. [2020-08-27 21:39:55,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-27 21:39:55,802 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 461 transitions. [2020-08-27 21:39:55,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-08-27 21:39:55,804 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:39:55,805 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:39:55,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 21:39:55,805 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:39:55,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:39:55,806 INFO L82 PathProgramCache]: Analyzing trace with hash 264696333, now seen corresponding path program 1 times [2020-08-27 21:39:55,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:39:55,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230444322] [2020-08-27 21:39:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:39:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,217 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:39:56,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:39:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:39:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:39:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:39:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:39:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-27 21:39:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-27 21:39:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-27 21:39:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-27 21:39:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 21:39:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 21:39:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-27 21:39:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-27 21:39:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:39:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-27 21:39:56,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230444322] [2020-08-27 21:39:56,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:39:56,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-27 21:39:56,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397370714] [2020-08-27 21:39:56,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 21:39:56,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:39:56,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 21:39:56,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-27 21:39:56,416 INFO L87 Difference]: Start difference. First operand 402 states and 461 transitions. Second operand 10 states. [2020-08-27 21:39:57,042 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-27 21:39:57,741 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:39:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:39:58,763 INFO L93 Difference]: Finished difference Result 565 states and 675 transitions. [2020-08-27 21:39:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 21:39:58,763 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-08-27 21:39:58,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:39:58,764 INFO L225 Difference]: With dead ends: 565 [2020-08-27 21:39:58,765 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 21:39:58,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-08-27 21:39:58,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 21:39:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 21:39:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 21:39:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 21:39:58,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2020-08-27 21:39:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:39:58,768 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 21:39:58,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 21:39:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 21:39:58,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 21:39:58,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-27 21:39:58,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 21:39:58,954 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:39:59,316 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:39:59,676 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:39:59,843 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:00,317 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 33 [2020-08-27 21:40:00,662 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:01,159 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 223 [2020-08-27 21:40:01,405 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-08-27 21:40:01,992 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-08-27 21:40:02,261 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:40:02,850 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-08-27 21:40:03,391 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 220 [2020-08-27 21:40:03,983 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-08-27 21:40:04,236 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:40:04,506 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:40:04,678 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:05,021 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:05,362 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:05,522 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:05,861 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:06,300 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 21 [2020-08-27 21:40:06,731 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 21 [2020-08-27 21:40:07,071 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:07,410 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:07,991 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-08-27 21:40:08,336 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:40:08,920 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-08-27 21:40:09,250 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:40:09,826 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-08-27 21:40:09,966 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:10,309 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:10,462 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:10,799 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:10,958 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:11,296 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:11,628 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:40:11,966 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:12,124 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:12,282 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:12,444 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:12,781 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:40:13,118 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:13,458 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:13,618 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:13,770 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:13,936 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:14,273 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:14,613 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:14,772 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:15,110 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:15,274 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:15,433 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:15,764 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:40:16,102 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:16,444 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:16,781 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:17,119 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:17,276 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:17,430 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:17,768 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:18,128 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:40:18,466 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:18,805 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:18,959 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:19,116 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:19,278 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:19,596 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-08-27 21:40:19,928 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:40:20,267 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:20,606 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:20,954 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:21,276 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:40:21,618 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:21,943 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:40:22,267 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:40:22,709 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-08-27 21:40:22,959 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:40:23,530 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-08-27 21:40:23,858 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:40:24,434 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-08-27 21:40:24,883 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-08-27 21:40:25,453 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-08-27 21:40:25,706 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:40:26,034 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:40:26,367 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:40:26,704 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-08-27 21:40:27,045 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:27,198 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:27,358 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:27,519 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:27,797 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 29 [2020-08-27 21:40:28,136 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:28,594 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 21 [2020-08-27 21:40:28,935 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:29,274 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:29,665 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-08-27 21:40:30,016 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-08-27 21:40:30,352 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:30,823 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 28 [2020-08-27 21:40:31,319 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-08-27 21:40:31,816 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-08-27 21:40:32,315 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-08-27 21:40:32,639 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:40:32,960 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:40:33,781 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-27 21:40:33,906 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-08-27 21:40:34,400 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-27 21:40:35,054 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-27 21:40:35,244 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-08-27 21:40:35,354 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-08-27 21:40:35,965 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-27 21:40:36,470 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-27 21:40:37,066 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 17 [2020-08-27 21:40:37,317 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:38,145 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-08-27 21:40:38,360 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-27 21:40:39,151 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-27 21:40:39,262 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-08-27 21:40:39,869 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-08-27 21:40:40,144 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1