/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:38:46,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:38:46,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:38:46,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:38:46,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:38:46,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:38:46,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:38:46,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:38:46,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:38:46,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:38:46,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:38:46,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:38:46,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:38:46,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:38:46,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:38:46,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:38:46,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:38:46,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:38:46,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:38:46,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:38:46,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:38:46,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:38:46,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:38:46,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:38:46,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:38:46,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:38:46,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:38:46,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:38:46,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:38:46,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:38:46,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:38:46,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:38:46,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:38:46,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:38:46,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:38:46,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:38:46,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:38:46,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:38:46,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:38:46,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:38:46,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:38:46,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:38:46,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:38:46,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:38:46,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:38:46,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:38:46,992 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:38:46,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:38:46,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:38:46,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:38:46,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:38:46,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:38:46,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:38:46,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:38:46,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:38:46,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:38:46,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:38:46,994 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:38:46,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:38:46,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:38:46,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:38:46,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:38:46,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:38:46,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:46,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:38:46,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:38:46,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:38:46,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:38:46,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:38:46,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:38:46,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:38:46,997 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:38:47,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:38:47,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:38:47,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:38:47,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:38:47,497 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:38:47,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-09-25 00:38:47,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9882f9217/87565cc69fa9474aa3c63103f018db63/FLAGac96a0009 [2020-09-25 00:38:48,215 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:38:48,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-09-25 00:38:48,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9882f9217/87565cc69fa9474aa3c63103f018db63/FLAGac96a0009 [2020-09-25 00:38:48,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9882f9217/87565cc69fa9474aa3c63103f018db63 [2020-09-25 00:38:48,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:38:48,514 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:38:48,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:48,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:38:48,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:38:48,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:48" (1/1) ... [2020-09-25 00:38:48,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157daaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:48, skipping insertion in model container [2020-09-25 00:38:48,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:48" (1/1) ... [2020-09-25 00:38:48,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:38:48,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:38:49,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:49,133 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:38:49,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:49,252 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:38:49,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49 WrapperNode [2020-09-25 00:38:49,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:49,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:38:49,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:38:49,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:38:49,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... [2020-09-25 00:38:49,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... [2020-09-25 00:38:49,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... [2020-09-25 00:38:49,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... [2020-09-25 00:38:49,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... [2020-09-25 00:38:49,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... [2020-09-25 00:38:49,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... [2020-09-25 00:38:49,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:38:49,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:38:49,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:38:49,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:38:49,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:38:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:38:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:38:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:38:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:38:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:38:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:38:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:38:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:38:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:38:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:38:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:38:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:38:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:38:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:38:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:38:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:38:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:38:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:38:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:38:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:38:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:38:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:38:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:38:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:38:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:38:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:38:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:38:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:38:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:38:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:38:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:38:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:38:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:38:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:38:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:38:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:38:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:38:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:38:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:38:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:38:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:38:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:38:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:38:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:38:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:38:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:38:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:38:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:38:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:38:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:38:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:38:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:38:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:38:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:38:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:38:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:38:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:38:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:38:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:38:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:38:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:38:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:38:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:38:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:38:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:38:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:38:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:38:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:38:50,614 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:38:50,615 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:38:50,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:50 BoogieIcfgContainer [2020-09-25 00:38:50,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:38:50,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:38:50,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:38:50,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:38:50,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:38:48" (1/3) ... [2020-09-25 00:38:50,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47916d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:50, skipping insertion in model container [2020-09-25 00:38:50,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:49" (2/3) ... [2020-09-25 00:38:50,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47916d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:50, skipping insertion in model container [2020-09-25 00:38:50,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:50" (3/3) ... [2020-09-25 00:38:50,636 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2020-09-25 00:38:50,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:38:50,660 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:38:50,684 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:38:50,722 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:38:50,722 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:38:50,722 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:38:50,722 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:38:50,723 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:38:50,723 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:38:50,723 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:38:50,723 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:38:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-09-25 00:38:50,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:38:50,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:50,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:50,779 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:50,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:50,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1532916738, now seen corresponding path program 1 times [2020-09-25 00:38:50,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:50,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133198939] [2020-09-25 00:38:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:51,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:52,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:53,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:56,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:56,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:38:56,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:38:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 00:38:56,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:38:56,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:38:56,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:38:56,717 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:56,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:56,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:56,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:56,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:56,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 00:38:56,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:56,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:56,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:56,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:56,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:56,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:56,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:56,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:56,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:56,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:56,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:56,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:56,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:56,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:56,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:56,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:56,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:56,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:56,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:38:56,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:56,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:56,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:56,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:56,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:56,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:38:56,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:56,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:56,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:56,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:56,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:56,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:56,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:56,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:56,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:56,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:38:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:56,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:56,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:56,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:56,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:56,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:38:56,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:57,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:38:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:57,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:57,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:57,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:57,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:57,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:38:57,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:57,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:57,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:38:57,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133198939] [2020-09-25 00:38:57,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:57,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:38:57,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544406164] [2020-09-25 00:38:57,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:38:57,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:57,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:38:57,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:38:57,165 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 8 states. [2020-09-25 00:38:57,902 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:59,134 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:59,470 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:38:59,809 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:00,155 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:00,482 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:01,670 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:02,070 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:02,467 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:39:03,831 INFO L93 Difference]: Finished difference Result 676 states and 840 transitions. [2020-09-25 00:39:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:39:03,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:39:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:39:03,856 INFO L225 Difference]: With dead ends: 676 [2020-09-25 00:39:03,857 INFO L226 Difference]: Without dead ends: 446 [2020-09-25 00:39:03,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:39:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-25 00:39:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 404. [2020-09-25 00:39:04,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-09-25 00:39:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 464 transitions. [2020-09-25 00:39:04,015 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 464 transitions. Word has length 142 [2020-09-25 00:39:04,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:39:04,016 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 464 transitions. [2020-09-25 00:39:04,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:39:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 464 transitions. [2020-09-25 00:39:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 00:39:04,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:39:04,026 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:39:04,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:39:04,027 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:39:04,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:39:04,027 INFO L82 PathProgramCache]: Analyzing trace with hash -741417358, now seen corresponding path program 1 times [2020-09-25 00:39:04,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:39:04,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385166077] [2020-09-25 00:39:04,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:39:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:04,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:04,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:09,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:09,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 00:39:09,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:39:09,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:39:09,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:39:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-09-25 00:39:09,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 00:39:09,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:09,476 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:39:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:39:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:09,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:09,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:09,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:39:09,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 00:39:09,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:39:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:09,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:09,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:09,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:09,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:09,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:09,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:09,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:09,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:09,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:39:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:09,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:09,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:09,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:09,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:09,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:09,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:09,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:09,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:09,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:39:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:09,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:09,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:09,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:09,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:09,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:09,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:09,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:09,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:39:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:09,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:09,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:09,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:09,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:09,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:39:09,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:09,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:09,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:39:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:09,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:09,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:39:10,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:39:10,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-09-25 00:39:10,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:39:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:39:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:39:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:10,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:39:10,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:10,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:39:10,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:39:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:39:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:39:10,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:10,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:39:10,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:10,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 00:39:10,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:39:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:39:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:39:10,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:10,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:10,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:39:10,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:10,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:39:10,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:10,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:10,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:39:10,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:39:10,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:39:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:10,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:39:10,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:10,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:10,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:10,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:10,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:10,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:39:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:10,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:39:10,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:39:10,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:39:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:10,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:10,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:39:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:10,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:39:10,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:10,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:10,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:10,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:39:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:10,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:10,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:10,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:10,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:10,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:10,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:10,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:11,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:39:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:11,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:11,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:11,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:39:11,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:11,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:11,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:11,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:11,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 00:39:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:11,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:11,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:11,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:11,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:39:11,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:11,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:39:11,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 00:39:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:11,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:11,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:11,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:11,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:11,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:11,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:39:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:39:11,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385166077] [2020-09-25 00:39:11,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:39:11,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 00:39:11,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513524180] [2020-09-25 00:39:11,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:39:11,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:39:11,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:39:11,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:39:11,172 INFO L87 Difference]: Start difference. First operand 404 states and 464 transitions. Second operand 14 states. [2020-09-25 00:39:11,685 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:39:12,700 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:13,102 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:13,426 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:13,785 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:14,099 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:14,620 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:39:14,942 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:15,385 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:15,699 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:15,990 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:16,310 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:39:16,687 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:17,107 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:17,457 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:18,030 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:18,354 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:18,697 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:39:19,073 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:19,427 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:19,732 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:39:22,429 INFO L93 Difference]: Finished difference Result 1123 states and 1487 transitions. [2020-09-25 00:39:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 00:39:22,430 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2020-09-25 00:39:22,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:39:22,440 INFO L225 Difference]: With dead ends: 1123 [2020-09-25 00:39:22,440 INFO L226 Difference]: Without dead ends: 783 [2020-09-25 00:39:22,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 00:39:22,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-09-25 00:39:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 667. [2020-09-25 00:39:22,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-09-25 00:39:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 771 transitions. [2020-09-25 00:39:22,575 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 771 transitions. Word has length 217 [2020-09-25 00:39:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:39:22,576 INFO L479 AbstractCegarLoop]: Abstraction has 667 states and 771 transitions. [2020-09-25 00:39:22,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 00:39:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 771 transitions. [2020-09-25 00:39:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 00:39:22,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:39:22,582 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:39:22,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:39:22,582 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:39:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:39:22,583 INFO L82 PathProgramCache]: Analyzing trace with hash 625994481, now seen corresponding path program 1 times [2020-09-25 00:39:22,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:39:22,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512767810] [2020-09-25 00:39:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:39:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:22,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:22,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:26,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:27,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:27,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-25 00:39:27,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:39:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 00:39:27,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:39:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-25 00:39:27,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 00:39:27,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:28,110 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:39:28,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:39:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:28,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:28,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:28,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:39:28,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 00:39:28,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:28,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:39:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:28,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:28,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:28,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:28,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:28,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:28,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:39:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:28,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:28,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:28,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:28,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:28,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:28,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:28,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:39:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:28,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:28,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:28,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:28,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:28,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:28,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:28,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:28,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:28,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:39:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:28,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:28,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:28,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:28,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:28,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:28,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:39:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:28,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:28,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:28,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:39:28,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:28,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:28,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:28,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:28,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:28,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:28,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:28,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:39:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:28,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:28,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:39:29,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:39:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 847 [2020-09-25 00:39:29,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:39:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:39:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:39:29,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 00:39:29,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:39:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:39:29,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:39:29,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 00:39:29,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:39:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:39:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:39:29,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:39:29,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:39:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:39:29,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:39:29,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:39:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:39:29,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:39:29,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:39:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:39:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:39:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:39:29,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:39:29,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:29,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:39:29,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:29,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:39:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:39:29,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:29,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:29,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:29,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:29,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:39:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:29,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:29,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:29,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:39:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:39:29,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:29,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:29,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 00:39:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:29,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:39:29,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:29,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:39:29,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-25 00:39:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:29,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:29,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:29,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:29,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:29,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:39:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:29,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:29,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:39:29,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512767810] [2020-09-25 00:39:29,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:39:29,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 00:39:29,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470384977] [2020-09-25 00:39:29,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:39:29,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:39:29,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:39:29,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:39:29,723 INFO L87 Difference]: Start difference. First operand 667 states and 771 transitions. Second operand 14 states. [2020-09-25 00:39:30,287 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:39:31,682 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 00:39:32,307 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 00:39:32,673 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:33,060 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:33,355 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:33,673 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:34,000 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:39:34,441 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:34,799 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:39:35,105 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:35,464 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:35,887 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:39:36,186 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:36,537 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:36,838 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:37,224 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:37,598 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:39:37,934 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188