/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:42:01,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:42:01,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:42:01,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:42:01,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:42:01,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:42:01,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:42:01,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:42:01,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:42:01,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:42:01,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:42:01,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:42:01,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:42:01,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:42:01,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:42:01,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:42:01,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:42:01,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:42:01,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:42:01,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:42:01,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:42:01,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:42:01,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:42:01,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:42:01,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:42:01,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:42:01,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:42:01,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:42:01,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:42:01,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:42:01,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:42:01,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:42:01,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:42:01,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:42:01,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:42:01,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:42:01,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:42:01,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:42:01,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:42:01,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:42:01,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:42:01,396 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:42:01,440 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:42:01,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:42:01,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:42:01,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:42:01,443 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:42:01,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:42:01,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:42:01,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:42:01,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:42:01,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:42:01,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:42:01,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:42:01,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:42:01,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:42:01,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:42:01,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:42:01,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:42:01,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:42:01,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:42:01,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:42:01,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:42:01,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:42:01,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:42:01,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:42:01,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:42:01,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:42:01,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:42:01,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:42:01,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:42:01,449 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;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;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;log-additional-information=true; [2020-09-24 16:42:02,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:42:02,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:42:02,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:42:02,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:42:02,726 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:42:02,728 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product11.cil.c [2020-09-24 16:42:02,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf1c9e8a/0d94b73bc6e04e97890ff130656c7ead/FLAG6cb71c9c7 [2020-09-24 16:42:03,416 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:42:03,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product11.cil.c [2020-09-24 16:42:03,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf1c9e8a/0d94b73bc6e04e97890ff130656c7ead/FLAG6cb71c9c7 [2020-09-24 16:42:03,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbf1c9e8a/0d94b73bc6e04e97890ff130656c7ead [2020-09-24 16:42:03,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:42:03,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:42:03,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:03,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:42:03,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:42:03,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a59c72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:03, skipping insertion in model container [2020-09-24 16:42:03,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:42:03,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:42:04,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,281 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:42:04,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,397 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:42:04,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04 WrapperNode [2020-09-24 16:42:04,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:04,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:42:04,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:42:04,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:42:04,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:42:04,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:42:04,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:42:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:42:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:42:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:42:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:42:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:42:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:42:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:42:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:42:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:42:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:42:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:42:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:42:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:42:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 16:42:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:42:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:42:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:42:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:42:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:42:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:42:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:42:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:42:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:42:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:42:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:42:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:42:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:42:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:42:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:42:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:42:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:42:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:42:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:42:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:42:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:42:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:42:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:42:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:42:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:42:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:42:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:42:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:42:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:42:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:42:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:42:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:42:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:42:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:42:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:42:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:42:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:42:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:42:05,618 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:42:05,619 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:42:05,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:05 BoogieIcfgContainer [2020-09-24 16:42:05,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:42:05,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:42:05,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:42:05,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:42:05,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:42:03" (1/3) ... [2020-09-24 16:42:05,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1406cf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:05, skipping insertion in model container [2020-09-24 16:42:05,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (2/3) ... [2020-09-24 16:42:05,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1406cf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:05, skipping insertion in model container [2020-09-24 16:42:05,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:05" (3/3) ... [2020-09-24 16:42:05,635 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product11.cil.c [2020-09-24 16:42:05,647 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:42:05,657 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:42:05,679 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:42:05,706 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:42:05,707 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:42:05,707 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:42:05,707 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:42:05,707 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:42:05,707 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:42:05,707 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:42:05,708 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:42:05,738 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states. [2020-09-24 16:42:05,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:42:05,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:05,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:42:05,756 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:05,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:05,764 INFO L82 PathProgramCache]: Analyzing trace with hash -950759025, now seen corresponding path program 1 times [2020-09-24 16:42:05,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:05,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819429299] [2020-09-24 16:42:05,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:06,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:07,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:08,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:42:24,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:42:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18248 [2020-09-24 16:42:24,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:42:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:42:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 16:42:24,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:42:24,783 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:24,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:25,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:25,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:25,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-24 16:42:25,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:42:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:25,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:25,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:25,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:25,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:25,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:25,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:25,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:25,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:25,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:25,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:25,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:25,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:25,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:25,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:25,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:25,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:25,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:25,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:25,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:25,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:25,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:25,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:25,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:42:25,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:25,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:25,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:25,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:25,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:25,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:25,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:25,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:25,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:25,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:25,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:25,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:25,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:25,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:42:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:25,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:25,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:25,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:25,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:25,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:42:25,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:42:25,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:25,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:25,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:25,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:42:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:25,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:25,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:25,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:25,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:25,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:42:25,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819429299] [2020-09-24 16:42:25,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:25,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:42:25,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372494620] [2020-09-24 16:42:25,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:42:25,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:25,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:42:25,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:42:25,348 INFO L87 Difference]: Start difference. First operand 266 states. Second operand 8 states. [2020-09-24 16:42:25,919 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:26,855 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:27,192 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:27,549 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:27,875 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:28,176 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:28,773 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:29,078 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:29,470 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:42:30,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:30,272 INFO L93 Difference]: Finished difference Result 469 states and 582 transitions. [2020-09-24 16:42:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:42:30,273 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 16:42:30,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:30,293 INFO L225 Difference]: With dead ends: 469 [2020-09-24 16:42:30,294 INFO L226 Difference]: Without dead ends: 313 [2020-09-24 16:42:30,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:42:30,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-09-24 16:42:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 263. [2020-09-24 16:42:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-24 16:42:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 287 transitions. [2020-09-24 16:42:30,409 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 287 transitions. Word has length 142 [2020-09-24 16:42:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:30,410 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 287 transitions. [2020-09-24 16:42:30,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:42:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 287 transitions. [2020-09-24 16:42:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 16:42:30,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:30,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:42:30,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:42:30,416 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:30,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1201943895, now seen corresponding path program 1 times [2020-09-24 16:42:30,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:30,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444648629] [2020-09-24 16:42:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:30,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:31,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:32,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:35,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:35,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 16:42:35,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:42:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4945 [2020-09-24 16:42:35,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:42:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 16:42:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 16:42:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:35,700 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:35,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:35,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:35,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:35,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:35,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:35,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 16:42:35,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:35,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:35,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:35,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 16:42:35,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:35,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:35,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:36,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:36,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:36,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:36,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:36,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:36,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:36,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:36,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:36,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:36,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:36,020 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:36,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:36,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:36,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:42:36,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:36,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:36,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:36,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:36,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:36,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:36,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:36,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:36,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:36,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:36,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:36,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:36,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:42:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:36,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:36,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:36,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:42:36,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:36,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:42:36,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:36,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:36,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:36,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:42:36,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:36,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:42:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:36,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:36,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:36,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:36,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:36,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:36,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:36,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:36,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 16:42:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:36,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:36,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:36,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:36,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:36,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:42:36,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444648629] [2020-09-24 16:42:36,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:36,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:42:36,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500530119] [2020-09-24 16:42:36,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:42:36,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:36,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:42:36,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:42:36,109 INFO L87 Difference]: Start difference. First operand 263 states and 287 transitions. Second operand 5 states. [2020-09-24 16:42:36,667 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:38,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:38,062 INFO L93 Difference]: Finished difference Result 683 states and 814 transitions. [2020-09-24 16:42:38,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:42:38,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-09-24 16:42:38,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:38,076 INFO L225 Difference]: With dead ends: 683 [2020-09-24 16:42:38,077 INFO L226 Difference]: Without dead ends: 530 [2020-09-24 16:42:38,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:42:38,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-09-24 16:42:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 395. [2020-09-24 16:42:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-24 16:42:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 440 transitions. [2020-09-24 16:42:38,180 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 440 transitions. Word has length 157 [2020-09-24 16:42:38,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:38,181 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 440 transitions. [2020-09-24 16:42:38,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:42:38,181 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 440 transitions. [2020-09-24 16:42:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:42:38,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:38,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:42:38,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:42:38,185 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:38,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:38,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1701933450, now seen corresponding path program 1 times [2020-09-24 16:42:38,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:38,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820582727] [2020-09-24 16:42:38,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:38,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:38,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:39,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:39,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 16:42:39,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:42:39,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1522 [2020-09-24 16:42:39,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:39,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:42:39,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 16:42:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:42:39,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:40,109 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:40,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 16:42:40,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:40,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:40,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:40,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:40,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:40,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:40,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:40,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:40,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:40,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:40,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:40,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:42:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:42:40,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:40,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:42:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:40,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:40,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:40,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 16:42:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:40,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:40,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:40,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:42:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:40,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:40,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:40,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:40,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:40,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:42:40,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:42:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:40,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:40,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:40,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:42:40,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820582727] [2020-09-24 16:42:40,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:40,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:42:40,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941373512] [2020-09-24 16:42:40,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:42:40,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:40,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:42:40,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:42:40,450 INFO L87 Difference]: Start difference. First operand 395 states and 440 transitions. Second operand 9 states. [2020-09-24 16:42:41,179 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:42,194 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:42,757 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 16:42:43,080 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:43,389 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:43,678 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:43,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:43,890 INFO L93 Difference]: Finished difference Result 726 states and 854 transitions. [2020-09-24 16:42:43,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:42:43,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:42:43,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:43,894 INFO L225 Difference]: With dead ends: 726 [2020-09-24 16:42:43,894 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:42:43,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:42:43,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:42:43,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:42:43,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:42:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:42:43,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 160 [2020-09-24 16:42:43,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:43,901 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:42:43,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:42:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:42:43,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:42:43,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:42:43,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:42:44,286 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 16:42:44,542 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 16:42:44,696 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:44,845 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:45,011 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:45,181 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:42:45,307 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 3 [2020-09-24 16:42:45,465 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:42:45,708 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 16:42:46,053 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-24 16:42:46,385 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 16:42:46,702 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 16:42:47,025 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-24 16:42:47,345 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 16:42:47,581 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 16:42:47,815 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 16:42:48,128 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 16:42:48,450 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 16:42:48,770 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 16:42:48,928 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:42:49,173 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 16:42:49,495 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-24 16:42:49,819 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 16:42:50,135 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 16:42:50,458 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-24 16:42:50,774 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 16:42:51,008 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 16:42:51,245 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186