/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:53:18,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:53:18,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:53:18,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:53:18,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:53:18,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:53:18,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:53:18,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:53:18,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:53:18,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:53:18,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:53:18,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:53:18,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:53:18,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:53:18,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:53:18,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:53:18,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:53:18,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:53:18,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:53:18,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:53:18,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:53:18,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:53:19,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:53:19,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:53:19,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:53:19,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:53:19,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:53:19,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:53:19,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:53:19,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:53:19,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:53:19,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:53:19,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:53:19,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:53:19,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:53:19,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:53:19,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:53:19,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:53:19,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:53:19,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:53:19,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:53:19,020 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 [2020-09-25 02:53:19,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:53:19,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:53:19,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:53:19,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:53:19,048 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:53:19,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:53:19,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:53:19,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:53:19,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:53:19,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:53:19,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:53:19,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:53:19,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:53:19,052 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:53:19,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:53:19,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:53:19,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:53:19,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:53:19,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:53:19,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:53:19,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:53:19,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:53:19,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:53:19,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:53:19,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:53:19,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:53:19,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:53:19,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:53:19,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:53:19,058 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.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:53:19,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:53:19,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:53:19,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:53:19,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:53:19,550 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:53:19,551 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-25 02:53:19,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8dc4dc29e/8d7f19b84a3f4fb5973aa4abab11719f/FLAGb695f0f5d [2020-09-25 02:53:20,269 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:53:20,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-25 02:53:20,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8dc4dc29e/8d7f19b84a3f4fb5973aa4abab11719f/FLAGb695f0f5d [2020-09-25 02:53:20,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8dc4dc29e/8d7f19b84a3f4fb5973aa4abab11719f [2020-09-25 02:53:20,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:53:20,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:53:20,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:20,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:53:20,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:53:20,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:20" (1/1) ... [2020-09-25 02:53:20,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c228022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:20, skipping insertion in model container [2020-09-25 02:53:20,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:20" (1/1) ... [2020-09-25 02:53:20,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:53:20,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:53:20,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:21,043 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:53:21,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:21,169 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:53:21,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21 WrapperNode [2020-09-25 02:53:21,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:21,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:53:21,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:53:21,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:53:21,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (1/1) ... [2020-09-25 02:53:21,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (1/1) ... [2020-09-25 02:53:21,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (1/1) ... [2020-09-25 02:53:21,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (1/1) ... [2020-09-25 02:53:21,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (1/1) ... [2020-09-25 02:53:21,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (1/1) ... [2020-09-25 02:53:21,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (1/1) ... [2020-09-25 02:53:21,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:53:21,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:53:21,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:53:21,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:53:21,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (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 [2020-09-25 02:53:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:53:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:53:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:53:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:53:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:53:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:53:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:53:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:53:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:53:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:53:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:53:21,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:53:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:53:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:53:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:53:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:53:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:53:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:53:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:53:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:53:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:53:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:53:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:53:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:53:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:53:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:53:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:53:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:53:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:53:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:53:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:53:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:53:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:53:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:53:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:53:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:53:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:53:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:53:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:53:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:53:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:53:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:53:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:53:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:53:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:53:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:53:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:53:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:53:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:53:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:53:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:53:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:53:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:53:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:53:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:53:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:53:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:53:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:53:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:53:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:53:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:53:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:53:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:53:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:53:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:53:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:53:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:53:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:53:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:53:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:53:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:53:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:53:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:53:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:53:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:53:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:53:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:53:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:53:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:53:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:53:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:53:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:53:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:53:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:53:22,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:53:22,584 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:53:22,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:22 BoogieIcfgContainer [2020-09-25 02:53:22,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:53:22,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:53:22,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:53:22,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:53:22,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:53:20" (1/3) ... [2020-09-25 02:53:22,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5091ee6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:22, skipping insertion in model container [2020-09-25 02:53:22,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:21" (2/3) ... [2020-09-25 02:53:22,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5091ee6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:22, skipping insertion in model container [2020-09-25 02:53:22,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:22" (3/3) ... [2020-09-25 02:53:22,608 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-25 02:53:22,618 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:53:22,627 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:53:22,648 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:53:22,678 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:53:22,678 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:53:22,679 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:53:22,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:53:22,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:53:22,679 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:53:22,679 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:53:22,679 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:53:22,706 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-25 02:53:22,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:53:22,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:22,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:22,727 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:22,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:22,735 INFO L82 PathProgramCache]: Analyzing trace with hash -483838742, now seen corresponding path program 1 times [2020-09-25 02:53:22,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:22,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394063883] [2020-09-25 02:53:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:23,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:23,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:24,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:25,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:26,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:28,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:28,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:53:28,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:53:28,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 02:53:28,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:53:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:53:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 02:53:28,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:53:28,600 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:28,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:28,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:28,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:28,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:28,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 02:53:28,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:28,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:53:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:29,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:29,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:29,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:29,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:29,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:53:29,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:29,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:29,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 02:53:29,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:29,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:29,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:29,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:29,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:29,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:29,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:29,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:29,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:53:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:29,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:29,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:29,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:53:29,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:29,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:53:29,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394063883] [2020-09-25 02:53:29,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:29,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:53:29,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038329466] [2020-09-25 02:53:29,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:53:29,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:29,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:53:29,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:53:29,266 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 8 states. [2020-09-25 02:53:29,846 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:31,010 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:31,388 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:31,762 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:32,118 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:53:32,497 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:33,241 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:33,547 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:33,938 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:35,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:35,205 INFO L93 Difference]: Finished difference Result 607 states and 763 transitions. [2020-09-25 02:53:35,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:53:35,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:53:35,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:35,255 INFO L225 Difference]: With dead ends: 607 [2020-09-25 02:53:35,255 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 02:53:35,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:53:35,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 02:53:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 362. [2020-09-25 02:53:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-25 02:53:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 417 transitions. [2020-09-25 02:53:35,502 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 417 transitions. Word has length 142 [2020-09-25 02:53:35,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:35,503 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 417 transitions. [2020-09-25 02:53:35,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:53:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 417 transitions. [2020-09-25 02:53:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 02:53:35,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:35,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:35,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:53:35,520 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:35,523 INFO L82 PathProgramCache]: Analyzing trace with hash 577972371, now seen corresponding path program 1 times [2020-09-25 02:53:35,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:35,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375378066] [2020-09-25 02:53:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:35,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:36,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:40,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:40,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 02:53:40,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 02:53:40,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:53:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:53:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 02:53:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:40,942 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:40,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:41,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 02:53:41,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:53:41,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:41,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:41,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:41,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:41,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:41,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:41,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:41,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:53:41,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:41,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:41,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:41,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:41,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 02:53:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:41,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:53:41,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:53:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:53:41,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:41,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 02:53:41,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:53:41,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:41,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:41,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 02:53:41,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:53:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:53:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:41,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 02:53:41,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:53:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:41,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:41,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:41,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:41,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:41,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:53:41,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:41,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 02:53:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:41,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:53:41,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 02:53:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:41,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:41,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:41,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:41,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:41,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:41,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:41,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:41,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:41,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:41,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:53:41,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375378066] [2020-09-25 02:53:41,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:41,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 02:53:41,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576431195] [2020-09-25 02:53:41,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:53:41,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:41,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:53:41,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:53:41,788 INFO L87 Difference]: Start difference. First operand 362 states and 417 transitions. Second operand 15 states. [2020-09-25 02:53:42,338 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:43,888 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188 [2020-09-25 02:53:44,864 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-25 02:53:45,321 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:45,752 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:46,105 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:46,901 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:47,243 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:47,582 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:53:47,914 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:53:48,282 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 02:53:48,676 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:49,058 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:49,389 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:49,732 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:50,518 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:50,849 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:51,192 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:51,524 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:51,916 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:52,229 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:52,551 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:53:55,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:55,189 INFO L93 Difference]: Finished difference Result 1149 states and 1567 transitions. [2020-09-25 02:53:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 02:53:55,191 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 194 [2020-09-25 02:53:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:55,201 INFO L225 Difference]: With dead ends: 1149 [2020-09-25 02:53:55,202 INFO L226 Difference]: Without dead ends: 848 [2020-09-25 02:53:55,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=314, Invalid=1408, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 02:53:55,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-09-25 02:53:55,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 589. [2020-09-25 02:53:55,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-09-25 02:53:55,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 683 transitions. [2020-09-25 02:53:55,330 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 683 transitions. Word has length 194 [2020-09-25 02:53:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:55,331 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 683 transitions. [2020-09-25 02:53:55,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 02:53:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 683 transitions. [2020-09-25 02:53:55,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 02:53:55,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:55,337 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:55,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:53:55,338 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:55,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:55,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1646761105, now seen corresponding path program 1 times [2020-09-25 02:53:55,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:55,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478801911] [2020-09-25 02:53:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:55,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:55,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:55,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:55,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-09-25 02:54:00,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:54:00,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 02:54:00,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:54:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 02:54:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,919 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:00,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:01,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 02:54:01,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:01,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:01,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:01,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:01,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:01,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:01,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:54:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:01,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:01,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:01,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:01,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:54:01,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:01,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:01,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:01,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 02:54:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:01,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 02:54:01,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:54:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:01,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:01,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:01,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:01,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 02:54:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:01,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:54:01,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:54:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:54:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:01,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:54:01,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:54:01,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:01,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:01,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:01,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 02:54:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:54:01,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 02:54:01,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:54:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:01,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 02:54:01,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:54:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:01,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:01,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 02:54:01,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:54:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:01,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:01,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:01,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:01,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:01,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:01,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:01,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:54:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:01,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-25 02:54:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:01,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:01,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:01,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:01,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-25 02:54:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:01,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:01,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:01,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 02:54:01,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478801911] [2020-09-25 02:54:01,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:54:01,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 02:54:01,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878280638] [2020-09-25 02:54:01,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 02:54:01,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:01,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 02:54:01,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:54:01,836 INFO L87 Difference]: Start difference. First operand 589 states and 683 transitions. Second operand 17 states. [2020-09-25 02:54:02,528 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:03,639 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:04,337 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:04,718 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:05,118 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:05,500 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:05,848 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:06,181 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:06,502 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:06,878 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:07,209 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:07,568 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:07,930 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:08,274 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:08,608 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:09,036 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:09,399 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:09,730 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:10,065 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:10,446 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:10,860 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:11,249 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188