/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:08:34,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:08:34,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:08:34,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:08:34,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:08:34,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:08:34,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:08:34,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:08:34,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:08:34,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:08:34,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:08:34,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:08:34,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:08:34,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:08:34,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:08:34,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:08:34,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:08:34,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:08:34,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:08:34,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:08:34,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:08:34,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:08:34,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:08:34,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:08:34,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:08:34,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:08:34,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:08:34,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:08:34,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:08:34,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:08:34,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:08:34,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:08:34,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:08:34,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:08:34,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:08:34,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:08:34,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:08:34,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:08:34,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:08:34,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:08:34,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:08:34,414 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 [2020-09-21 10:08:34,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:08:34,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:08:34,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:08:34,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:08:34,441 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:08:34,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:08:34,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:08:34,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:08:34,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:08:34,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:08:34,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:08:34,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:08:34,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:08:34,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:08:34,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:08:34,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:08:34,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:08:34,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:08:34,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:08:34,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:08:34,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:08:34,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:08:34,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:08:34,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:08:34,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:08:34,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:08:34,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:08:34,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:08:34,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:08:34,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-21 10:08:34,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:08:34,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:08:34,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:08:34,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:08:34,915 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:08:34,916 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c [2020-09-21 10:08:35,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52e4a6baf/f4eb8f452e0144a19cb208bf6d2d801a/FLAG7eb055201 [2020-09-21 10:08:35,637 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:08:35,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c [2020-09-21 10:08:35,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52e4a6baf/f4eb8f452e0144a19cb208bf6d2d801a/FLAG7eb055201 [2020-09-21 10:08:35,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52e4a6baf/f4eb8f452e0144a19cb208bf6d2d801a [2020-09-21 10:08:35,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:08:35,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:08:35,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:08:35,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:08:35,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:08:35,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:08:35" (1/1) ... [2020-09-21 10:08:35,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137e61c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:35, skipping insertion in model container [2020-09-21 10:08:35,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:08:35" (1/1) ... [2020-09-21 10:08:35,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:08:36,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:08:36,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:08:36,575 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:08:36,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:08:36,691 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:08:36,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36 WrapperNode [2020-09-21 10:08:36,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:08:36,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:08:36,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:08:36,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:08:36,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... [2020-09-21 10:08:36,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... [2020-09-21 10:08:36,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... [2020-09-21 10:08:36,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... [2020-09-21 10:08:36,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... [2020-09-21 10:08:36,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... [2020-09-21 10:08:36,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... [2020-09-21 10:08:36,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:08:36,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:08:36,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:08:36,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:08:36,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:08:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:08:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:08:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 10:08:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 10:08:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 10:08:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 10:08:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 10:08:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 10:08:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 10:08:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 10:08:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 10:08:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 10:08:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 10:08:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 10:08:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 10:08:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 10:08:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 10:08:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:08:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 10:08:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 10:08:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 10:08:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 10:08:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 10:08:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 10:08:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:08:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 10:08:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 10:08:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 10:08:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 10:08:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 10:08:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 10:08:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 10:08:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 10:08:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 10:08:36,900 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 10:08:36,900 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 10:08:36,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 10:08:36,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:08:36,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:08:36,900 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 10:08:36,900 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 10:08:36,901 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 10:08:36,901 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 10:08:36,901 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 10:08:36,901 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 10:08:36,901 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 10:08:36,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 10:08:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 10:08:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 10:08:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 10:08:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 10:08:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 10:08:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 10:08:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 10:08:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 10:08:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 10:08:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 10:08:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 10:08:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:08:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 10:08:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 10:08:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 10:08:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 10:08:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 10:08:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 10:08:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 10:08:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 10:08:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 10:08:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 10:08:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 10:08:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 10:08:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 10:08:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 10:08:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 10:08:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 10:08:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 10:08:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 10:08:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:08:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 10:08:36,910 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 10:08:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 10:08:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 10:08:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 10:08:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 10:08:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 10:08:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:08:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 10:08:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:08:38,025 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:08:38,025 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 10:08:38,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:08:38 BoogieIcfgContainer [2020-09-21 10:08:38,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:08:38,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:08:38,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:08:38,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:08:38,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:08:35" (1/3) ... [2020-09-21 10:08:38,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a284a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:08:38, skipping insertion in model container [2020-09-21 10:08:38,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:08:36" (2/3) ... [2020-09-21 10:08:38,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a284a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:08:38, skipping insertion in model container [2020-09-21 10:08:38,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:08:38" (3/3) ... [2020-09-21 10:08:38,042 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product08.cil.c [2020-09-21 10:08:38,054 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:08:38,065 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:08:38,088 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:08:38,127 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:08:38,127 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:08:38,127 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:08:38,127 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:08:38,128 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:08:38,128 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:08:38,128 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:08:38,128 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:08:38,163 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-09-21 10:08:38,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 10:08:38,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:08:38,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:08:38,176 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:08:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:08:38,183 INFO L82 PathProgramCache]: Analyzing trace with hash 232346821, now seen corresponding path program 1 times [2020-09-21 10:08:38,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:08:38,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144659975] [2020-09-21 10:08:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:08:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,848 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:38,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:08:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:08:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:08:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:08:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:08:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:08:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:08:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:08:38,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144659975] [2020-09-21 10:08:38,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:08:38,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 10:08:38,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558865674] [2020-09-21 10:08:38,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 10:08:38,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:08:38,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 10:08:38,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:08:38,987 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 3 states. [2020-09-21 10:08:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:40,046 INFO L93 Difference]: Finished difference Result 266 states and 350 transitions. [2020-09-21 10:08:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 10:08:40,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 10:08:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:40,066 INFO L225 Difference]: With dead ends: 266 [2020-09-21 10:08:40,067 INFO L226 Difference]: Without dead ends: 145 [2020-09-21 10:08:40,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:08:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-21 10:08:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 112. [2020-09-21 10:08:40,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-21 10:08:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2020-09-21 10:08:40,167 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 46 [2020-09-21 10:08:40,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:40,167 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2020-09-21 10:08:40,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 10:08:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2020-09-21 10:08:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 10:08:40,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:08:40,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:08:40,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:08:40,172 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:08:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:08:40,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1830481593, now seen corresponding path program 1 times [2020-09-21 10:08:40,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:08:40,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372674824] [2020-09-21 10:08:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:08:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,579 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:40,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:08:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:08:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:08:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:08:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:08:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:08:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:08:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:08:40,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372674824] [2020-09-21 10:08:40,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:08:40,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 10:08:40,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235084466] [2020-09-21 10:08:40,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 10:08:40,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:08:40,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 10:08:40,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 10:08:40,639 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 4 states. [2020-09-21 10:08:41,083 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:41,808 INFO L93 Difference]: Finished difference Result 189 states and 229 transitions. [2020-09-21 10:08:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:08:41,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 10:08:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:41,812 INFO L225 Difference]: With dead ends: 189 [2020-09-21 10:08:41,812 INFO L226 Difference]: Without dead ends: 129 [2020-09-21 10:08:41,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:08:41,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-09-21 10:08:41,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 103. [2020-09-21 10:08:41,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-21 10:08:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2020-09-21 10:08:41,851 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 47 [2020-09-21 10:08:41,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:41,851 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2020-09-21 10:08:41,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 10:08:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2020-09-21 10:08:41,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 10:08:41,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:08:41,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:08:41,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:08:41,855 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:08:41,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:08:41,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1249539500, now seen corresponding path program 1 times [2020-09-21 10:08:41,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:08:41,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542181712] [2020-09-21 10:08:41,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:08:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,250 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:08:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:08:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:08:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:08:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:08:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:08:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 10:08:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:08:42,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542181712] [2020-09-21 10:08:42,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:08:42,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:08:42,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984036103] [2020-09-21 10:08:42,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:08:42,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:08:42,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:08:42,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:08:42,345 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 8 states. [2020-09-21 10:08:42,728 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:08:43,040 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:43,388 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:43,694 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:44,558 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:46,131 INFO L93 Difference]: Finished difference Result 360 states and 445 transitions. [2020-09-21 10:08:46,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:08:46,135 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-21 10:08:46,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:46,139 INFO L225 Difference]: With dead ends: 360 [2020-09-21 10:08:46,140 INFO L226 Difference]: Without dead ends: 281 [2020-09-21 10:08:46,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:08:46,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-21 10:08:46,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 220. [2020-09-21 10:08:46,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-21 10:08:46,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 264 transitions. [2020-09-21 10:08:46,216 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 264 transitions. Word has length 52 [2020-09-21 10:08:46,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:46,217 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 264 transitions. [2020-09-21 10:08:46,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:08:46,217 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 264 transitions. [2020-09-21 10:08:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 10:08:46,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:08:46,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:08:46,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:08:46,220 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:08:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:08:46,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1248876172, now seen corresponding path program 1 times [2020-09-21 10:08:46,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:08:46,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126993631] [2020-09-21 10:08:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:08:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,666 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:46,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:08:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:08:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:08:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:08:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:08:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:08:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 10:08:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 10:08:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:08:46,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126993631] [2020-09-21 10:08:46,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:08:46,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 10:08:46,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296939577] [2020-09-21 10:08:46,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:08:46,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:08:46,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:08:46,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:08:46,804 INFO L87 Difference]: Start difference. First operand 220 states and 264 transitions. Second operand 12 states. [2020-09-21 10:08:47,275 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:08:47,670 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:48,010 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:48,304 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:48,977 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:50,007 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:50,422 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:50,826 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:51,150 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:51,459 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:08:51,817 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:52,227 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:52,589 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:54,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:54,032 INFO L93 Difference]: Finished difference Result 875 states and 1174 transitions. [2020-09-21 10:08:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:08:54,032 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-09-21 10:08:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:54,041 INFO L225 Difference]: With dead ends: 875 [2020-09-21 10:08:54,041 INFO L226 Difference]: Without dead ends: 679 [2020-09-21 10:08:54,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-09-21 10:08:54,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-21 10:08:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 582. [2020-09-21 10:08:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-09-21 10:08:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 718 transitions. [2020-09-21 10:08:54,203 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 718 transitions. Word has length 57 [2020-09-21 10:08:54,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:54,204 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 718 transitions. [2020-09-21 10:08:54,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:08:54,204 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 718 transitions. [2020-09-21 10:08:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 10:08:54,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:08:54,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:08:54,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:08:54,208 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:08:54,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:08:54,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1908801166, now seen corresponding path program 1 times [2020-09-21 10:08:54,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:08:54,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848176453] [2020-09-21 10:08:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:08:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,517 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:54,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:08:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:08:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:08:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:08:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:08:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:08:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 10:08:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 10:08:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 10:08:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:08:54,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848176453] [2020-09-21 10:08:54,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:08:54,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 10:08:54,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153137711] [2020-09-21 10:08:54,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 10:08:54,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:08:54,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 10:08:54,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:08:54,608 INFO L87 Difference]: Start difference. First operand 582 states and 718 transitions. Second operand 6 states. [2020-09-21 10:08:54,907 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:08:55,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:55,751 INFO L93 Difference]: Finished difference Result 1027 states and 1340 transitions. [2020-09-21 10:08:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:08:55,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 10:08:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:55,756 INFO L225 Difference]: With dead ends: 1027 [2020-09-21 10:08:55,756 INFO L226 Difference]: Without dead ends: 469 [2020-09-21 10:08:55,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:08:55,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-21 10:08:55,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 402. [2020-09-21 10:08:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-21 10:08:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 461 transitions. [2020-09-21 10:08:55,834 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 461 transitions. Word has length 61 [2020-09-21 10:08:55,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:55,834 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 461 transitions. [2020-09-21 10:08:55,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 10:08:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 461 transitions. [2020-09-21 10:08:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 10:08:55,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:08:55,837 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:08:55,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:08:55,838 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:08:55,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:08:55,838 INFO L82 PathProgramCache]: Analyzing trace with hash 264696333, now seen corresponding path program 1 times [2020-09-21 10:08:55,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:08:55,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278631356] [2020-09-21 10:08:55,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:08:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,181 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:56,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:08:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:08:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:08:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:08:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:08:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:08:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:08:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 10:08:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:08:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:08:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 10:08:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 10:08:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 10:08:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 10:08:56,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278631356] [2020-09-21 10:08:56,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:08:56,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 10:08:56,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811181212] [2020-09-21 10:08:56,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:08:56,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:08:56,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:08:56,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:08:56,338 INFO L87 Difference]: Start difference. First operand 402 states and 461 transitions. Second operand 10 states. [2020-09-21 10:08:56,990 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-21 10:08:57,714 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:08:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:58,686 INFO L93 Difference]: Finished difference Result 565 states and 675 transitions. [2020-09-21 10:08:58,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 10:08:58,687 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-21 10:08:58,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:58,688 INFO L225 Difference]: With dead ends: 565 [2020-09-21 10:08:58,688 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:08:58,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:08:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:08:58,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:08:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:08:58,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:08:58,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2020-09-21 10:08:58,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:58,692 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:08:58,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:08:58,692 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:08:58,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:08:58,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:08:58,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:08:58,876 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:08:59,236 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:08:59,594 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:08:59,760 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:00,204 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 33 [2020-09-21 10:09:00,548 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:01,050 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 223 [2020-09-21 10:09:01,302 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-21 10:09:01,886 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-09-21 10:09:02,162 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:02,756 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-09-21 10:09:03,287 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 220 [2020-09-21 10:09:03,870 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-09-21 10:09:04,124 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:04,392 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:04,569 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:04,912 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:05,253 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:05,411 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:05,749 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:06,185 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 21 [2020-09-21 10:09:06,616 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 21 [2020-09-21 10:09:06,953 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:07,291 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:07,867 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:09:08,197 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:09:08,770 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:09:09,101 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:09:09,676 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:09:09,817 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:10,161 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:10,313 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:10,650 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:10,809 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:11,147 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:11,479 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:09:11,816 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:11,981 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:12,140 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:12,302 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:12,633 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:09:12,971 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:13,310 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:13,469 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:13,621 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:13,784 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:14,122 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:14,462 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:14,620 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:14,959 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:15,123 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:15,285 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:15,615 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:09:15,955 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:16,296 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:16,634 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:16,971 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:17,128 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:17,282 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:17,620 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:17,968 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:09:18,304 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:18,643 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:18,798 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:18,956 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:19,118 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:19,439 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-21 10:09:19,772 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:09:20,110 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:20,448 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:20,786 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:21,108 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:09:21,449 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:21,773 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:09:22,097 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:09:22,539 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-09-21 10:09:22,788 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:23,360 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-09-21 10:09:23,692 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:24,274 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-09-21 10:09:24,716 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-09-21 10:09:25,287 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-09-21 10:09:25,536 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:25,864 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:09:26,196 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:09:26,534 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:26,875 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:27,028 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:27,188 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:27,351 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:27,634 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 29 [2020-09-21 10:09:27,971 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:28,428 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 21 [2020-09-21 10:09:28,770 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:29,110 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:29,498 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:29,848 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:09:30,185 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:09:30,645 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 28 [2020-09-21 10:09:31,141 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:09:31,640 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:09:32,137 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:09:32,460 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:09:32,781 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:09:33,617 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-09-21 10:09:33,725 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-09-21 10:09:34,198 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-09-21 10:09:34,860 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-09-21 10:09:35,059 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-09-21 10:09:35,170 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:09:35,775 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-09-21 10:09:36,275 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-09-21 10:09:36,887 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 17 [2020-09-21 10:09:37,140 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:37,974 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-09-21 10:09:38,172 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-09-21 10:09:39,020 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-09-21 10:09:39,125 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:09:39,878 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-09-21 10:09:39,993 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:09:40,235 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-09-21 10:09:41,099 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-09-21 10:09:41,835 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-09-21 10:09:42,032 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1