/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=LOWLEXORDER --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_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:24:10,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:24:10,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:24:10,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:24:10,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:24:10,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:24:10,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:24:10,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:24:10,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:24:10,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:24:10,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:24:10,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:24:10,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:24:10,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:24:10,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:24:10,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:24:10,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:24:10,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:24:10,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:24:10,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:24:10,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:24:10,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:24:10,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:24:10,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:24:10,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:24:10,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:24:10,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:24:10,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:24:10,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:24:10,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:24:10,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:24:10,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:24:10,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:24:10,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:24:10,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:24:10,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:24:10,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:24:10,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:24:10,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:24:10,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:24:10,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:24:10,975 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 [2020-09-24 21:24:11,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:24:11,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:24:11,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:24:11,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:24:11,007 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:24:11,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:24:11,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:24:11,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:24:11,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:24:11,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:24:11,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:24:11,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:24:11,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:24:11,009 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:24:11,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:24:11,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:24:11,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:24:11,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:24:11,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:24:11,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:24:11,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:24:11,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:24:11,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:24:11,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:24:11,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:24:11,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:24:11,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:24:11,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:24:11,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:24:11,012 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:24:11,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:24:11,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:24:11,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:24:11,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:24:11,476 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:24:11,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-09-24 21:24:11,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edfe6ae27/1ad7027da4894068a9bd697ed14840c9/FLAG732b63192 [2020-09-24 21:24:12,184 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:24:12,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-09-24 21:24:12,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edfe6ae27/1ad7027da4894068a9bd697ed14840c9/FLAG732b63192 [2020-09-24 21:24:12,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/edfe6ae27/1ad7027da4894068a9bd697ed14840c9 [2020-09-24 21:24:12,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:24:12,458 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:24:12,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:24:12,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:24:12,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:24:12,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:24:12" (1/1) ... [2020-09-24 21:24:12,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:12, skipping insertion in model container [2020-09-24 21:24:12,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:24:12" (1/1) ... [2020-09-24 21:24:12,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:24:12,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:24:13,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:24:13,138 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:24:13,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:24:13,279 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:24:13,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13 WrapperNode [2020-09-24 21:24:13,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:24:13,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:24:13,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:24:13,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:24:13,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (1/1) ... [2020-09-24 21:24:13,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (1/1) ... [2020-09-24 21:24:13,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (1/1) ... [2020-09-24 21:24:13,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (1/1) ... [2020-09-24 21:24:13,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (1/1) ... [2020-09-24 21:24:13,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (1/1) ... [2020-09-24 21:24:13,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (1/1) ... [2020-09-24 21:24:13,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:24:13,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:24:13,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:24:13,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:24:13,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (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 [2020-09-24 21:24:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:24:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:24:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:24:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:24:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:24:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:24:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:24:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:24:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:24:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:24:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:24:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:24:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:24:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:24:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:24:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:24:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:24:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:24:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:24:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:24:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:24:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:24:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:24:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:24:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:24:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:24:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:24:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:24:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:24:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:24:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:24:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:24:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:24:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:24:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:24:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:24:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:24:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:24:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:24:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:24:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:24:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:24:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:24:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:24:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:24:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:24:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:24:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:24:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:24:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:24:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:24:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:24:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:24:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:24:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:24:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:24:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:24:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:24:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:24:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:24:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:24:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:24:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:24:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:24:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:24:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:24:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:24:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:24:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:24:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:24:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:24:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:24:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:24:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:24:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:24:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:24:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:24:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:24:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:24:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:24:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:24:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:24:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:24:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:24:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:24:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:24:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:24:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:24:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:24:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:24:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:24:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:24:14,532 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:24:14,532 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:24:14,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:24:14 BoogieIcfgContainer [2020-09-24 21:24:14,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:24:14,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:24:14,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:24:14,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:24:14,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:24:12" (1/3) ... [2020-09-24 21:24:14,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c176b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:24:14, skipping insertion in model container [2020-09-24 21:24:14,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:24:13" (2/3) ... [2020-09-24 21:24:14,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c176b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:24:14, skipping insertion in model container [2020-09-24 21:24:14,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:24:14" (3/3) ... [2020-09-24 21:24:14,548 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2020-09-24 21:24:14,557 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:24:14,566 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:24:14,584 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:24:14,612 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:24:14,613 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:24:14,613 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:24:14,613 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:24:14,613 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:24:14,613 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:24:14,613 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:24:14,613 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:24:14,636 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-24 21:24:14,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:24:14,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:24:14,654 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] [2020-09-24 21:24:14,655 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:24:14,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:24:14,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2005054536, now seen corresponding path program 1 times [2020-09-24 21:24:14,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:24:14,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698603786] [2020-09-24 21:24:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:24:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:15,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:15,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:16,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:17,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:20,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:24:20,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:24:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 21:24:20,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:24:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:24:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 21:24:20,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:24:20,500 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:24:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:24:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:20,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:20,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:24:20,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:20,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-24 21:24:20,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:24:20,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:20,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:24:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:20,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:20,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:20,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:20,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:24:20,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:20,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:20,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:24:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:20,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:20,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:20,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:20,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:20,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:24:20,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:20,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:20,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:24:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:20,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:20,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:20,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:20,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:20,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:24:20,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:20,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:20,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:20,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:24:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:20,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:20,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:20,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:24:20,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:20,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:24:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:20,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:21,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:21,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:21,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:24:21,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:24:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:21,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:21,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:21,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:24:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:21,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:21,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:21,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:21,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:24:21,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:24:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:21,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:24:21,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698603786] [2020-09-24 21:24:21,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:24:21,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:24:21,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313395379] [2020-09-24 21:24:21,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:24:21,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:24:21,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:24:21,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:24:21,134 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 8 states. [2020-09-24 21:24:21,704 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:24:22,817 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 21:24:23,401 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 21:24:23,796 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:24:24,142 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:24:24,483 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:24:24,799 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:24:25,097 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:24:26,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:24:26,744 INFO L93 Difference]: Finished difference Result 560 states and 692 transitions. [2020-09-24 21:24:26,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:24:26,747 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:24:26,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:24:26,768 INFO L225 Difference]: With dead ends: 560 [2020-09-24 21:24:26,769 INFO L226 Difference]: Without dead ends: 390 [2020-09-24 21:24:26,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:24:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-24 21:24:26,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 346. [2020-09-24 21:24:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-24 21:24:26,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 390 transitions. [2020-09-24 21:24:26,910 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 390 transitions. Word has length 142 [2020-09-24 21:24:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:24:26,911 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 390 transitions. [2020-09-24 21:24:26,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:24:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 390 transitions. [2020-09-24 21:24:26,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:24:26,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:24:26,917 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] [2020-09-24 21:24:26,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:24:26,918 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:24:26,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:24:26,918 INFO L82 PathProgramCache]: Analyzing trace with hash 297309340, now seen corresponding path program 1 times [2020-09-24 21:24:26,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:24:26,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454743203] [2020-09-24 21:24:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:24:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:27,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:27,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:28,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:31,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:31,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:24:31,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:24:31,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 21:24:31,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:24:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:24:31,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 21:24:31,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:32,367 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:24:32,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:24:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:24:32,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 21:24:32,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:24:32,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:24:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:32,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:24:32,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:32,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:32,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:24:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:32,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:24:32,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:32,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:32,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:32,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:24:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:32,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:24:32,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:32,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:24:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:32,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:24:32,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 21:24:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:24:32,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:24:32,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:24:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:32,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 21:24:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:32,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:24:32,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:24:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:24:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:32,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:32,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:32,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:32,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:24:32,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:24:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:24:32,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454743203] [2020-09-24 21:24:32,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:24:32,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:24:32,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093996017] [2020-09-24 21:24:32,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:24:32,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:24:32,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:24:32,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:24:32,955 INFO L87 Difference]: Start difference. First operand 346 states and 390 transitions. Second operand 5 states. [2020-09-24 21:24:33,393 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:24:34,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:24:34,005 INFO L93 Difference]: Finished difference Result 528 states and 627 transitions. [2020-09-24 21:24:34,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:24:34,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:24:34,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:24:34,013 INFO L225 Difference]: With dead ends: 528 [2020-09-24 21:24:34,013 INFO L226 Difference]: Without dead ends: 281 [2020-09-24 21:24:34,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:24:34,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-24 21:24:34,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 257. [2020-09-24 21:24:34,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 21:24:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 274 transitions. [2020-09-24 21:24:34,122 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 274 transitions. Word has length 148 [2020-09-24 21:24:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:24:34,123 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 274 transitions. [2020-09-24 21:24:34,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:24:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 274 transitions. [2020-09-24 21:24:34,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 21:24:34,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:24:34,128 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] [2020-09-24 21:24:34,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:24:34,128 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:24:34,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:24:34,128 INFO L82 PathProgramCache]: Analyzing trace with hash -355261839, now seen corresponding path program 1 times [2020-09-24 21:24:34,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:24:34,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322512908] [2020-09-24 21:24:34,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:24:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:34,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:34,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:35,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:38,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 21:24:39,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:24:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-24 21:24:39,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:24:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:24:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 21:24:39,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:39,541 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:24:39,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:24:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:39,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:24:39,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:39,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 21:24:39,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:24:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:39,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:24:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:39,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:39,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:24:39,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:39,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:24:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:39,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:39,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:39,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:24:39,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:39,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:39,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:24:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:39,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:39,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:39,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:24:39,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:39,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:39,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:39,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:39,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:24:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:39,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:39,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:39,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:24:39,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:39,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:39,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:39,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:24:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:39,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:24:39,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:39,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:24:39,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:24:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:24:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:24:39,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:24:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:39,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:39,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:39,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:39,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:39,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:24:39,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:39,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:24:39,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:39,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:40,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 21:24:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:40,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:40,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:40,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:40,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:40,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:24:40,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:24:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:40,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:24:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:24:40,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322512908] [2020-09-24 21:24:40,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:24:40,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:24:40,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103516112] [2020-09-24 21:24:40,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:24:40,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:24:40,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:24:40,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:24:40,054 INFO L87 Difference]: Start difference. First operand 257 states and 274 transitions. Second operand 11 states. [2020-09-24 21:24:40,556 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:24:41,296 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:24:41,893 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:24:42,479 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 21:24:42,831 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:24:43,148 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:24:43,445 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:24:44,004 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 21:24:44,288 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:24:44,621 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:24:44,935 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:24:45,226 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:24:45,811 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:24:46,121 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:24:46,483 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:24:46,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:24:46,967 INFO L93 Difference]: Finished difference Result 438 states and 491 transitions. [2020-09-24 21:24:46,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:24:46,967 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 157 [2020-09-24 21:24:46,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:24:46,972 INFO L225 Difference]: With dead ends: 438 [2020-09-24 21:24:46,972 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 21:24:46,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2020-09-24 21:24:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 21:24:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 316. [2020-09-24 21:24:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-09-24 21:24:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 339 transitions. [2020-09-24 21:24:47,012 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 339 transitions. Word has length 157 [2020-09-24 21:24:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:24:47,013 INFO L479 AbstractCegarLoop]: Abstraction has 316 states and 339 transitions. [2020-09-24 21:24:47,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:24:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 339 transitions. [2020-09-24 21:24:47,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 21:24:47,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:24:47,017 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:24:47,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:24:47,017 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:24:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:24:47,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1833452062, now seen corresponding path program 1 times [2020-09-24 21:24:47,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:24:47,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771877151] [2020-09-24 21:24:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:24:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:47,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:47,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:47,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:51,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:51,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 21:24:52,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:24:52,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 21:24:52,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 21:24:52,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:24:52,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 21:24:52,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,472 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:24:52,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:24:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:24:52,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-24 21:24:52,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:24:52,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:52,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:24:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:52,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:24:52,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:52,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:24:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:52,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:24:52,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:52,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:24:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:52,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:24:52,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:52,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:52,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:24:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:52,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:24:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:24:52,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:24:52,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:52,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:52,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:24:52,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:24:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:24:52,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:24:52,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:24:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:24:52,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:24:52,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:24:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:24:52,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:24:52,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:24:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:24:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:24:52,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:24:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:24:52,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:24:52,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:24:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:52,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:24:52,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:24:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:52,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:24:52,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:24:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:52,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 21:24:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:24:52,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:24:52,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:24:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:24:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:24:52,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 21:24:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:52,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:24:52,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:24:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:52,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:24:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 21:24:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:24:52,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:24:52,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:24:52,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:24:52,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:24:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:24:52,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:24:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:24:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:24:52,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:24:52,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:24:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 21:24:52,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771877151] [2020-09-24 21:24:52,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:24:52,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 21:24:52,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880505640] [2020-09-24 21:24:52,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:24:52,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:24:52,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:24:52,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:24:52,994 INFO L87 Difference]: Start difference. First operand 316 states and 339 transitions. Second operand 10 states. [2020-09-24 21:24:53,902 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-24 21:24:54,768 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:24:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:24:55,528 INFO L93 Difference]: Finished difference Result 399 states and 438 transitions. [2020-09-24 21:24:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:24:55,529 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-09-24 21:24:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:24:55,530 INFO L225 Difference]: With dead ends: 399 [2020-09-24 21:24:55,530 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:24:55,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:24:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:24:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:24:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:24:55,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:24:55,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2020-09-24 21:24:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:24:55,533 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:24:55,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:24:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:24:55,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:24:55,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:24:55,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:24:55,736 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:24:56,079 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-09-24 21:24:56,447 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 21:24:56,610 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:24:56,944 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 21:24:57,269 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-09-24 21:24:57,430 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:24:57,763 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-09-24 21:24:58,081 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-09-24 21:24:58,314 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 23 [2020-09-24 21:24:58,475 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:24:58,630 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:24:58,951 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-09-24 21:24:59,110 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:24:59,429 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218