/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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:09:24,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:09:24,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:09:24,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:09:24,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:09:24,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:09:24,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:09:24,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:09:24,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:09:24,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:09:24,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:09:24,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:09:24,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:09:24,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:09:24,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:09:24,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:09:24,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:09:24,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:09:24,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:09:24,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:09:24,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:09:24,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:09:24,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:09:24,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:09:24,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:09:24,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:09:24,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:09:24,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:09:24,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:09:24,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:09:24,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:09:24,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:09:24,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:09:24,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:09:24,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:09:24,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:09:24,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:09:24,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:09:24,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:09:24,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:09:24,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:09:24,980 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 10:09:25,006 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:09:25,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:09:25,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:09:25,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:09:25,008 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:09:25,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:09:25,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:09:25,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:09:25,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:09:25,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:09:25,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:09:25,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:09:25,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:09:25,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:09:25,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:09:25,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:09:25,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:09:25,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:09:25,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:09:25,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:09:25,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:09:25,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:09:25,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:09:25,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:09:25,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:09:25,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:09:25,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:09:25,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:09:25,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:09:25,013 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 10:09:25,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:09:25,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:09:25,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:09:25,495 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:09:25,496 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:09:25,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-21 10:09:25,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71f5d57ed/a882e773cf35478c91299384d835e93c/FLAGd3bc9dce2 [2020-09-21 10:09:26,131 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:09:26,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-21 10:09:26,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71f5d57ed/a882e773cf35478c91299384d835e93c/FLAGd3bc9dce2 [2020-09-21 10:09:26,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71f5d57ed/a882e773cf35478c91299384d835e93c [2020-09-21 10:09:26,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:09:26,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:09:26,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:09:26,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:09:26,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:09:26,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:09:26" (1/1) ... [2020-09-21 10:09:26,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:26, skipping insertion in model container [2020-09-21 10:09:26,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:09:26" (1/1) ... [2020-09-21 10:09:26,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:09:26,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:09:27,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:09:27,085 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:09:27,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:09:27,204 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:09:27,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27 WrapperNode [2020-09-21 10:09:27,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:09:27,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:09:27,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:09:27,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:09:27,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (1/1) ... [2020-09-21 10:09:27,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (1/1) ... [2020-09-21 10:09:27,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (1/1) ... [2020-09-21 10:09:27,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (1/1) ... [2020-09-21 10:09:27,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (1/1) ... [2020-09-21 10:09:27,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (1/1) ... [2020-09-21 10:09:27,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (1/1) ... [2020-09-21 10:09:27,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:09:27,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:09:27,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:09:27,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:09:27,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (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 10:09:27,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:09:27,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:09:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 10:09:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 10:09:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 10:09:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 10:09:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 10:09:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 10:09:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 10:09:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 10:09:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 10:09:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 10:09:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 10:09:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 10:09:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 10:09:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 10:09:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 10:09:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 10:09:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:09:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 10:09:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 10:09:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 10:09:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 10:09:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 10:09:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 10:09:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 10:09:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:09:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 10:09:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 10:09:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 10:09:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 10:09:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 10:09:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 10:09:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 10:09:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 10:09:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 10:09:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 10:09:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 10:09:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 10:09:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:09:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:09:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 10:09:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 10:09:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 10:09:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 10:09:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 10:09:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 10:09:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 10:09:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 10:09:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 10:09:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 10:09:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 10:09:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 10:09:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 10:09:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 10:09:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 10:09:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 10:09:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 10:09:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 10:09:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 10:09:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 10:09:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:09:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 10:09:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 10:09:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 10:09:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 10:09:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 10:09:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 10:09:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 10:09:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 10:09:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 10:09:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 10:09:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 10:09:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 10:09:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 10:09:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 10:09:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 10:09:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 10:09:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 10:09:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 10:09:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:09:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 10:09:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 10:09:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 10:09:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 10:09:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 10:09:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 10:09:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 10:09:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 10:09:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:09:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 10:09:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:09:28,508 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:09:28,508 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 10:09:28,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:09:28 BoogieIcfgContainer [2020-09-21 10:09:28,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:09:28,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:09:28,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:09:28,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:09:28,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:09:26" (1/3) ... [2020-09-21 10:09:28,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb3d272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:09:28, skipping insertion in model container [2020-09-21 10:09:28,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:09:27" (2/3) ... [2020-09-21 10:09:28,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb3d272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:09:28, skipping insertion in model container [2020-09-21 10:09:28,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:09:28" (3/3) ... [2020-09-21 10:09:28,530 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2020-09-21 10:09:28,542 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:09:28,554 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:09:28,577 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:09:28,613 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:09:28,614 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:09:28,614 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:09:28,614 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:09:28,614 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:09:28,614 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:09:28,614 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:09:28,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:09:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2020-09-21 10:09:28,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 10:09:28,648 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:28,649 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 10:09:28,650 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:28,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:28,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1999815947, now seen corresponding path program 1 times [2020-09-21 10:09:28,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:28,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726644389] [2020-09-21 10:09:28,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,414 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:29,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:09:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:09:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:29,559 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 10:09:29,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726644389] [2020-09-21 10:09:29,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:29,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 10:09:29,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683140] [2020-09-21 10:09:29,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 10:09:29,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:29,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 10:09:29,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:09:29,605 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 3 states. [2020-09-21 10:09:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:30,642 INFO L93 Difference]: Finished difference Result 270 states and 356 transitions. [2020-09-21 10:09:30,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 10:09:30,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 10:09:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:30,661 INFO L225 Difference]: With dead ends: 270 [2020-09-21 10:09:30,661 INFO L226 Difference]: Without dead ends: 147 [2020-09-21 10:09:30,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:09:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-09-21 10:09:30,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2020-09-21 10:09:30,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 10:09:30,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-09-21 10:09:30,754 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2020-09-21 10:09:30,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:30,754 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-09-21 10:09:30,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 10:09:30,755 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-09-21 10:09:30,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 10:09:30,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:30,758 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 10:09:30,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:09:30,759 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:30,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:30,759 INFO L82 PathProgramCache]: Analyzing trace with hash 2091613530, now seen corresponding path program 1 times [2020-09-21 10:09:30,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:30,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484785103] [2020-09-21 10:09:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,081 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:31,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:09:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:09:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:31,173 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 10:09:31,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484785103] [2020-09-21 10:09:31,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:31,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 10:09:31,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511889951] [2020-09-21 10:09:31,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 10:09:31,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:31,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 10:09:31,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 10:09:31,177 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2020-09-21 10:09:31,603 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:09:32,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:32,375 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2020-09-21 10:09:32,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:09:32,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 10:09:32,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:32,382 INFO L225 Difference]: With dead ends: 193 [2020-09-21 10:09:32,382 INFO L226 Difference]: Without dead ends: 131 [2020-09-21 10:09:32,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:09:32,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-21 10:09:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 105. [2020-09-21 10:09:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 10:09:32,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-09-21 10:09:32,420 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2020-09-21 10:09:32,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:32,421 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-09-21 10:09:32,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 10:09:32,421 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-09-21 10:09:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 10:09:32,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:32,423 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 10:09:32,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:09:32,424 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:32,424 INFO L82 PathProgramCache]: Analyzing trace with hash 969654456, now seen corresponding path program 1 times [2020-09-21 10:09:32,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:32,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597042070] [2020-09-21 10:09:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,781 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:32,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:09:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 10:09:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:32,884 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 10:09:32,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597042070] [2020-09-21 10:09:32,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:32,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:09:32,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699182890] [2020-09-21 10:09:32,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:09:32,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:32,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:09:32,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:09:32,887 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 8 states. [2020-09-21 10:09:33,321 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:33,652 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:33,944 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:34,250 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:35,125 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:09:36,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:36,668 INFO L93 Difference]: Finished difference Result 366 states and 454 transitions. [2020-09-21 10:09:36,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:09:36,669 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-21 10:09:36,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:36,675 INFO L225 Difference]: With dead ends: 366 [2020-09-21 10:09:36,675 INFO L226 Difference]: Without dead ends: 285 [2020-09-21 10:09:36,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:09:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-21 10:09:36,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 224. [2020-09-21 10:09:36,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-21 10:09:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 270 transitions. [2020-09-21 10:09:36,745 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 270 transitions. Word has length 52 [2020-09-21 10:09:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:36,746 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 270 transitions. [2020-09-21 10:09:36,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:09:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 270 transitions. [2020-09-21 10:09:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 10:09:36,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:36,749 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 10:09:36,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:09:36,749 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:36,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:36,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1151197578, now seen corresponding path program 1 times [2020-09-21 10:09:36,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:36,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366199015] [2020-09-21 10:09:36,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,224 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:37,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:09:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 10:09:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 10:09:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:37,356 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 10:09:37,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366199015] [2020-09-21 10:09:37,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:37,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 10:09:37,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28666097] [2020-09-21 10:09:37,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:09:37,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:37,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:09:37,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:09:37,359 INFO L87 Difference]: Start difference. First operand 224 states and 270 transitions. Second operand 12 states. [2020-09-21 10:09:37,839 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:38,224 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:38,548 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:38,871 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:39,507 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:09:40,536 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:40,983 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:41,359 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:41,697 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:09:42,016 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:42,439 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:42,816 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:09:43,176 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:09:44,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:44,492 INFO L93 Difference]: Finished difference Result 891 states and 1198 transitions. [2020-09-21 10:09:44,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:09:44,493 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-09-21 10:09:44,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:44,501 INFO L225 Difference]: With dead ends: 891 [2020-09-21 10:09:44,501 INFO L226 Difference]: Without dead ends: 691 [2020-09-21 10:09:44,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-09-21 10:09:44,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-09-21 10:09:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 594. [2020-09-21 10:09:44,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-09-21 10:09:44,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 736 transitions. [2020-09-21 10:09:44,680 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 736 transitions. Word has length 57 [2020-09-21 10:09:44,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:44,681 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 736 transitions. [2020-09-21 10:09:44,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:09:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 736 transitions. [2020-09-21 10:09:44,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 10:09:44,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:44,692 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 10:09:44,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:09:44,695 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:44,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:44,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1679599728, now seen corresponding path program 1 times [2020-09-21 10:09:44,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:44,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621053339] [2020-09-21 10:09:44,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,095 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:45,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:09:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 10:09:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 10:09:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 10:09:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:45,190 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 10:09:45,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621053339] [2020-09-21 10:09:45,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:09:45,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 10:09:45,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434925370] [2020-09-21 10:09:45,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 10:09:45,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:45,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 10:09:45,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:09:45,192 INFO L87 Difference]: Start difference. First operand 594 states and 736 transitions. Second operand 6 states. [2020-09-21 10:09:45,598 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:46,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:46,626 INFO L93 Difference]: Finished difference Result 1039 states and 1358 transitions. [2020-09-21 10:09:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:09:46,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 10:09:46,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:46,631 INFO L225 Difference]: With dead ends: 1039 [2020-09-21 10:09:46,632 INFO L226 Difference]: Without dead ends: 469 [2020-09-21 10:09:46,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:09:46,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-21 10:09:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 402. [2020-09-21 10:09:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-21 10:09:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 461 transitions. [2020-09-21 10:09:46,717 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 461 transitions. Word has length 61 [2020-09-21 10:09:46,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:46,718 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 461 transitions. [2020-09-21 10:09:46,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 10:09:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 461 transitions. [2020-09-21 10:09:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 10:09:46,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:09:46,721 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 10:09:46,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:09:46,721 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:09:46,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:09:46,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1114958929, now seen corresponding path program 1 times [2020-09-21 10:09:46,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:09:46,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489790844] [2020-09-21 10:09:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:09:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,106 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:09:47,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:09:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:09:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:09:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:09:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:09:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:09:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:09:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 10:09:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:09:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:09:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 10:09:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 10:09:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 10:09:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:09:47,279 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 10:09:47,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489790844] [2020-09-21 10:09:47,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:09:47,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 10:09:47,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188575973] [2020-09-21 10:09:47,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:09:47,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:09:47,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:09:47,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:09:47,281 INFO L87 Difference]: Start difference. First operand 402 states and 461 transitions. Second operand 10 states. [2020-09-21 10:09:48,001 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-21 10:09:48,690 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:09:49,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:09:49,755 INFO L93 Difference]: Finished difference Result 565 states and 675 transitions. [2020-09-21 10:09:49,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 10:09:49,756 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-21 10:09:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:09:49,757 INFO L225 Difference]: With dead ends: 565 [2020-09-21 10:09:49,757 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:09:49,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:09:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:09:49,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:09:49,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:09:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:09:49,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2020-09-21 10:09:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:09:49,760 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:09:49,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:09:49,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:09:49,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:09:49,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:09:49,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:09:50,232 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 32 [2020-09-21 10:09:50,402 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:50,762 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:51,127 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:51,297 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:51,651 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:52,105 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 224 [2020-09-21 10:09:52,395 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-21 10:09:53,007 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 222 [2020-09-21 10:09:53,279 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:53,888 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 222 [2020-09-21 10:09:54,364 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 221 [2020-09-21 10:09:54,978 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 222 [2020-09-21 10:09:55,317 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:55,578 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:09:55,755 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:56,102 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:09:56,454 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:56,612 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:09:56,957 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:57,358 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 29 [2020-09-21 10:09:57,818 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 208 [2020-09-21 10:09:58,174 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:09:58,691 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2020-09-21 10:09:59,205 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2020-09-21 10:09:59,535 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:09:59,863 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:10:00,382 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2020-09-21 10:10:00,525 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:00,872 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:01,024 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:01,369 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:01,530 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:01,877 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:02,217 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:02,565 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:02,725 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:02,882 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:03,045 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:03,397 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:03,743 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:04,092 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:04,244 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:04,404 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:04,753 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:04,922 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:05,087 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:05,429 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:05,775 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:06,123 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:06,469 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:06,627 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:06,972 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:07,127 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:07,480 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:07,830 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-21 10:10:08,115 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:10:08,453 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:08,798 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:09,142 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:09,488 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:09,815 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:10:10,160 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:10,447 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:10:10,624 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:10,965 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:11,309 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:11,657 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:11,810 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:11,968 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:12,129 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:12,468 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:12,814 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:13,162 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:13,315 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:13,474 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:13,910 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 223 [2020-09-21 10:10:14,154 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:14,568 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-09-21 10:10:14,814 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:15,227 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-09-21 10:10:15,642 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 223 [2020-09-21 10:10:16,055 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-09-21 10:10:16,305 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:16,550 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:16,971 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 33 [2020-09-21 10:10:17,329 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-21 10:10:17,689 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-09-21 10:10:18,033 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:18,213 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:18,557 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-21 10:10:18,903 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:19,062 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:19,407 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:19,795 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 32 [2020-09-21 10:10:20,189 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 32 [2020-09-21 10:10:20,534 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:20,913 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:21,383 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2020-09-21 10:10:21,859 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2020-09-21 10:10:22,159 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:10:22,457 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:10:22,926 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 222 [2020-09-21 10:10:23,271 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:24,166 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-09-21 10:10:24,681 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-09-21 10:10:25,354 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-09-21 10:10:25,516 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-09-21 10:10:25,641 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:10:26,349 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-09-21 10:10:26,954 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 17 [2020-09-21 10:10:27,213 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:28,041 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-09-21 10:10:28,217 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-09-21 10:10:28,333 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:10:29,141 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-09-21 10:10:29,257 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:10:30,087 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-09-21 10:10:30,284 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-09-21 10:10:30,451 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-09-21 10:10:31,226 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-09-21 10:10:31,837 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-09-21 10:10:32,381 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24