/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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 21:40:33,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 21:40:33,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 21:40:33,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 21:40:33,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 21:40:33,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 21:40:33,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 21:40:33,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 21:40:33,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 21:40:33,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 21:40:33,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 21:40:33,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 21:40:33,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 21:40:33,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 21:40:33,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 21:40:33,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 21:40:33,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 21:40:33,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 21:40:33,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 21:40:33,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 21:40:33,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 21:40:33,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 21:40:33,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 21:40:33,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 21:40:33,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 21:40:33,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 21:40:33,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 21:40:33,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 21:40:33,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 21:40:33,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 21:40:33,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 21:40:33,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 21:40:33,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 21:40:33,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 21:40:33,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 21:40:33,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 21:40:33,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 21:40:33,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 21:40:33,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 21:40:33,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 21:40:33,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 21:40:33,822 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 [2020-08-27 21:40:33,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 21:40:33,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 21:40:33,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 21:40:33,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 21:40:33,865 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 21:40:33,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 21:40:33,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 21:40:33,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 21:40:33,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 21:40:33,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 21:40:33,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 21:40:33,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 21:40:33,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 21:40:33,868 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 21:40:33,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 21:40:33,869 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 21:40:33,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 21:40:33,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 21:40:33,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 21:40:33,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 21:40:33,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 21:40:33,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:40:33,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 21:40:33,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 21:40:33,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 21:40:33,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 21:40:33,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 21:40:33,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 21:40:33,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 21:40:33,871 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 [2020-08-27 21:40:34,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 21:40:34,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 21:40:34,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 21:40:34,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 21:40:34,350 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 21:40:34,351 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-08-27 21:40:34,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f5f7f127/fcc5c5c8ec9a4811840f27cd03062b07/FLAG9d71103c8 [2020-08-27 21:40:35,047 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 21:40:35,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-08-27 21:40:35,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f5f7f127/fcc5c5c8ec9a4811840f27cd03062b07/FLAG9d71103c8 [2020-08-27 21:40:35,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f5f7f127/fcc5c5c8ec9a4811840f27cd03062b07 [2020-08-27 21:40:35,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 21:40:35,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 21:40:35,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 21:40:35,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 21:40:35,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 21:40:35,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:40:35" (1/1) ... [2020-08-27 21:40:35,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:35, skipping insertion in model container [2020-08-27 21:40:35,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:40:35" (1/1) ... [2020-08-27 21:40:35,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 21:40:35,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 21:40:35,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:40:35,911 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 21:40:36,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:40:36,050 INFO L208 MainTranslator]: Completed translation [2020-08-27 21:40:36,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36 WrapperNode [2020-08-27 21:40:36,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 21:40:36,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 21:40:36,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 21:40:36,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 21:40:36,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (1/1) ... [2020-08-27 21:40:36,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (1/1) ... [2020-08-27 21:40:36,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (1/1) ... [2020-08-27 21:40:36,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (1/1) ... [2020-08-27 21:40:36,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (1/1) ... [2020-08-27 21:40:36,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (1/1) ... [2020-08-27 21:40:36,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (1/1) ... [2020-08-27 21:40:36,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 21:40:36,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 21:40:36,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 21:40:36,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 21:40:36,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (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 [2020-08-27 21:40:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 21:40:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 21:40:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-27 21:40:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-27 21:40:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-27 21:40:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-27 21:40:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-27 21:40:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-27 21:40:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-27 21:40:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-27 21:40:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-27 21:40:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-27 21:40:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-27 21:40:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-27 21:40:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-27 21:40:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-27 21:40:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-27 21:40:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-27 21:40:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-27 21:40:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-27 21:40:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-27 21:40:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-27 21:40:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-27 21:40:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-27 21:40:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-27 21:40:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-27 21:40:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-27 21:40:36,256 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-27 21:40:36,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-27 21:40:36,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-27 21:40:36,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-27 21:40:36,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-27 21:40:36,256 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-27 21:40:36,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-27 21:40:36,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-27 21:40:36,257 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-27 21:40:36,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-27 21:40:36,257 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-27 21:40:36,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 21:40:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 21:40:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 21:40:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-27 21:40:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-27 21:40:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-27 21:40:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-27 21:40:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-27 21:40:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-27 21:40:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-27 21:40:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-27 21:40:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-27 21:40:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-27 21:40:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-27 21:40:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-27 21:40:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-27 21:40:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-27 21:40:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-27 21:40:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-27 21:40:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-27 21:40:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-27 21:40:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-27 21:40:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-27 21:40:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-27 21:40:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-27 21:40:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-27 21:40:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-27 21:40:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-27 21:40:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-27 21:40:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-27 21:40:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-27 21:40:36,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-27 21:40:36,263 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-27 21:40:36,263 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-27 21:40:36,263 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-27 21:40:36,263 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-27 21:40:36,263 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-27 21:40:36,263 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-27 21:40:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-27 21:40:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-27 21:40:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-27 21:40:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-27 21:40:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-27 21:40:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-27 21:40:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-27 21:40:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-27 21:40:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-27 21:40:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-27 21:40:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-27 21:40:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-27 21:40:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 21:40:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 21:40:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-27 21:40:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 21:40:37,306 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 21:40:37,306 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-27 21:40:37,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:40:37 BoogieIcfgContainer [2020-08-27 21:40:37,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 21:40:37,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 21:40:37,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 21:40:37,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 21:40:37,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:40:35" (1/3) ... [2020-08-27 21:40:37,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370b02b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:40:37, skipping insertion in model container [2020-08-27 21:40:37,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:36" (2/3) ... [2020-08-27 21:40:37,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370b02b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:40:37, skipping insertion in model container [2020-08-27 21:40:37,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:40:37" (3/3) ... [2020-08-27 21:40:37,328 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2020-08-27 21:40:37,341 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 21:40:37,354 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 21:40:37,379 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 21:40:37,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 21:40:37,410 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 21:40:37,410 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 21:40:37,410 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 21:40:37,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 21:40:37,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 21:40:37,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 21:40:37,411 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 21:40:37,439 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-08-27 21:40:37,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-27 21:40:37,452 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:37,453 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] [2020-08-27 21:40:37,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:37,462 INFO L82 PathProgramCache]: Analyzing trace with hash -635159435, now seen corresponding path program 1 times [2020-08-27 21:40:37,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:37,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247007290] [2020-08-27 21:40:37,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,179 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:38,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-27 21:40:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-27 21:40:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:38,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:38,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247007290] [2020-08-27 21:40:38,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:38,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-27 21:40:38,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802568927] [2020-08-27 21:40:38,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-27 21:40:38,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:38,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-27 21:40:38,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:40:38,379 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 3 states. [2020-08-27 21:40:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:39,551 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2020-08-27 21:40:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-27 21:40:39,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-27 21:40:39,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:39,571 INFO L225 Difference]: With dead ends: 299 [2020-08-27 21:40:39,571 INFO L226 Difference]: Without dead ends: 162 [2020-08-27 21:40:39,577 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 [2020-08-27 21:40:39,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-08-27 21:40:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 128. [2020-08-27 21:40:39,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-27 21:40:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 151 transitions. [2020-08-27 21:40:39,673 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 151 transitions. Word has length 46 [2020-08-27 21:40:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:39,674 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 151 transitions. [2020-08-27 21:40:39,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-27 21:40:39,674 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 151 transitions. [2020-08-27 21:40:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-27 21:40:39,678 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:39,678 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] [2020-08-27 21:40:39,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 21:40:39,679 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:39,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1199676654, now seen corresponding path program 1 times [2020-08-27 21:40:39,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:39,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891833619] [2020-08-27 21:40:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,108 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:40,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:40:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-27 21:40:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:40,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:40,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891833619] [2020-08-27 21:40:40,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:40,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-27 21:40:40,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085676850] [2020-08-27 21:40:40,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-27 21:40:40,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:40,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-27 21:40:40,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-27 21:40:40,167 INFO L87 Difference]: Start difference. First operand 128 states and 151 transitions. Second operand 4 states. [2020-08-27 21:40:40,583 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:40:41,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:41,583 INFO L93 Difference]: Finished difference Result 226 states and 276 transitions. [2020-08-27 21:40:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:40:41,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-27 21:40:41,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:41,589 INFO L225 Difference]: With dead ends: 226 [2020-08-27 21:40:41,589 INFO L226 Difference]: Without dead ends: 146 [2020-08-27 21:40:41,595 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 [2020-08-27 21:40:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-08-27 21:40:41,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 119. [2020-08-27 21:40:41,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-27 21:40:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2020-08-27 21:40:41,642 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 47 [2020-08-27 21:40:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:41,643 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2020-08-27 21:40:41,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-27 21:40:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2020-08-27 21:40:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-27 21:40:41,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:41,645 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] [2020-08-27 21:40:41,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 21:40:41,646 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:41,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:41,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1199325015, now seen corresponding path program 1 times [2020-08-27 21:40:41,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:41,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466369920] [2020-08-27 21:40:41,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,055 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-27 21:40:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-27 21:40:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:42,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466369920] [2020-08-27 21:40:42,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:42,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-27 21:40:42,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309482270] [2020-08-27 21:40:42,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:40:42,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:42,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:40:42,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:40:42,163 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 8 states. [2020-08-27 21:40:42,516 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:40:42,832 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:43,160 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:43,468 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:44,327 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:40:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:46,204 INFO L93 Difference]: Finished difference Result 409 states and 509 transitions. [2020-08-27 21:40:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-27 21:40:46,205 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-27 21:40:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:46,210 INFO L225 Difference]: With dead ends: 409 [2020-08-27 21:40:46,210 INFO L226 Difference]: Without dead ends: 314 [2020-08-27 21:40:46,211 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 [2020-08-27 21:40:46,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-08-27 21:40:46,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 256. [2020-08-27 21:40:46,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-08-27 21:40:46,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 310 transitions. [2020-08-27 21:40:46,283 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 310 transitions. Word has length 51 [2020-08-27 21:40:46,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:46,283 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 310 transitions. [2020-08-27 21:40:46,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:40:46,284 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 310 transitions. [2020-08-27 21:40:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-27 21:40:46,287 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:46,287 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] [2020-08-27 21:40:46,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 21:40:46,287 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:46,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:46,288 INFO L82 PathProgramCache]: Analyzing trace with hash -274049321, now seen corresponding path program 1 times [2020-08-27 21:40:46,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:46,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274042736] [2020-08-27 21:40:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,698 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:46,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:40:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-27 21:40:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 21:40:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:46,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274042736] [2020-08-27 21:40:46,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:46,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-27 21:40:46,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786552279] [2020-08-27 21:40:46,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-27 21:40:46,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:46,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-27 21:40:46,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-27 21:40:46,850 INFO L87 Difference]: Start difference. First operand 256 states and 310 transitions. Second operand 12 states. [2020-08-27 21:40:47,290 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:40:47,642 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:47,964 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:48,262 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:48,932 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:40:49,933 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:50,424 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:50,856 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:51,169 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-27 21:40:51,501 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:40:51,970 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:52,382 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:40:52,775 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:54,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:54,399 INFO L93 Difference]: Finished difference Result 1027 states and 1368 transitions. [2020-08-27 21:40:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-27 21:40:54,400 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-08-27 21:40:54,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:54,408 INFO L225 Difference]: With dead ends: 1027 [2020-08-27 21:40:54,408 INFO L226 Difference]: Without dead ends: 795 [2020-08-27 21:40:54,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-27 21:40:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-08-27 21:40:54,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 694. [2020-08-27 21:40:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-08-27 21:40:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 862 transitions. [2020-08-27 21:40:54,583 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 862 transitions. Word has length 57 [2020-08-27 21:40:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:54,583 INFO L479 AbstractCegarLoop]: Abstraction has 694 states and 862 transitions. [2020-08-27 21:40:54,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-27 21:40:54,584 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 862 transitions. [2020-08-27 21:40:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-27 21:40:54,588 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:54,588 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] [2020-08-27 21:40:54,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 21:40:54,589 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:54,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:54,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2094502109, now seen corresponding path program 1 times [2020-08-27 21:40:54,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:54,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731966058] [2020-08-27 21:40:54,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:54,913 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:54,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:54,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:54,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:54,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:54,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:40:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-27 21:40:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-27 21:40:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-27 21:40:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:55,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731966058] [2020-08-27 21:40:55,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:55,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-27 21:40:55,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603778043] [2020-08-27 21:40:55,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-27 21:40:55,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:55,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-27 21:40:55,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:40:55,048 INFO L87 Difference]: Start difference. First operand 694 states and 862 transitions. Second operand 6 states. [2020-08-27 21:40:55,402 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:40:56,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:56,307 INFO L93 Difference]: Finished difference Result 1115 states and 1437 transitions. [2020-08-27 21:40:56,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-27 21:40:56,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-08-27 21:40:56,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:56,312 INFO L225 Difference]: With dead ends: 1115 [2020-08-27 21:40:56,312 INFO L226 Difference]: Without dead ends: 445 [2020-08-27 21:40:56,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-27 21:40:56,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-08-27 21:40:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 420. [2020-08-27 21:40:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-08-27 21:40:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 479 transitions. [2020-08-27 21:40:56,396 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 479 transitions. Word has length 61 [2020-08-27 21:40:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:56,396 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 479 transitions. [2020-08-27 21:40:56,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-27 21:40:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 479 transitions. [2020-08-27 21:40:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-27 21:40:56,399 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:56,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:40:56,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 21:40:56,399 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:56,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:56,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1427524119, now seen corresponding path program 1 times [2020-08-27 21:40:56,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:56,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471263787] [2020-08-27 21:40:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,725 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-27 21:40:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-27 21:40:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-27 21:40:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-27 21:40:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 21:40:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 21:40:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-27 21:40:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-27 21:40:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-27 21:40:56,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471263787] [2020-08-27 21:40:56,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:40:56,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-27 21:40:56,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756059872] [2020-08-27 21:40:56,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 21:40:56,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:56,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 21:40:56,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-27 21:40:56,921 INFO L87 Difference]: Start difference. First operand 420 states and 479 transitions. Second operand 10 states. [2020-08-27 21:40:57,524 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-27 21:40:58,127 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:40:59,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:59,101 INFO L93 Difference]: Finished difference Result 562 states and 654 transitions. [2020-08-27 21:40:59,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 21:40:59,102 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2020-08-27 21:40:59,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:59,104 INFO L225 Difference]: With dead ends: 562 [2020-08-27 21:40:59,104 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 21:40:59,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-08-27 21:40:59,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 21:40:59,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 21:40:59,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 21:40:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 21:40:59,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2020-08-27 21:40:59,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:59,108 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 21:40:59,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 21:40:59,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 21:40:59,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 21:40:59,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-27 21:40:59,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 21:40:59,290 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:40:59,643 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:40:59,811 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:00,155 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:00,495 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:01,015 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 231 [2020-08-27 21:41:01,202 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:01,368 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:01,709 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:02,043 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:02,382 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:02,719 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:03,052 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:03,215 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:03,373 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:03,714 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:04,048 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:04,210 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:04,371 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:04,636 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:41:04,901 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:41:05,479 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 221 [2020-08-27 21:41:05,937 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-08-27 21:41:06,448 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 219 [2020-08-27 21:41:07,029 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 221 [2020-08-27 21:41:07,283 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-08-27 21:41:07,440 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:07,602 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:07,764 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:08,097 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:08,430 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:08,753 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:09,100 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-27 21:41:09,240 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:41:09,585 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-27 21:41:09,744 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:09,902 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:10,233 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:10,575 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:10,899 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:11,234 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:11,400 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:11,730 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:12,054 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:12,213 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:12,372 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:12,527 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:12,866 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:13,025 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:13,363 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:13,522 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:13,857 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:14,194 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:14,526 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:14,858 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:15,017 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:15,171 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:15,329 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:15,661 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:15,992 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:16,325 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:16,703 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 31 [2020-08-27 21:41:17,228 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 29 [2020-08-27 21:41:17,566 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:17,875 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:41:18,204 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:41:18,537 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:18,869 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:19,196 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:19,516 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-08-27 21:41:19,674 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:19,832 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:19,990 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:20,323 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:20,656 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:20,981 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:21,370 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:41:21,626 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:41:22,075 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 220 [2020-08-27 21:41:22,633 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-08-27 21:41:23,187 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-08-27 21:41:23,635 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 220 [2020-08-27 21:41:23,968 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:41:24,376 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 31 [2020-08-27 21:41:24,721 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:25,063 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:25,445 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 31 [2020-08-27 21:41:25,774 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:26,128 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:26,473 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:26,810 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-08-27 21:41:27,149 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:41:27,668 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 220 [2020-08-27 21:41:28,189 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 220 [2020-08-27 21:41:28,517 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:41:29,038 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 220 [2020-08-27 21:41:29,863 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-27 21:41:30,354 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-27 21:41:30,514 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 22 [2020-08-27 21:41:30,670 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-08-27 21:41:31,529 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-27 21:41:32,325 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-27 21:41:32,980 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-27 21:41:33,168 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-27 21:41:33,676 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-27 21:41:33,945 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:41:34,440 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-27 21:41:35,259 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-08-27 21:41:35,455 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-27 21:41:36,267 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-27 21:41:36,378 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-08-27 21:41:37,170 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-08-27 21:41:37,277 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-08-27 21:41:38,049 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-08-27 21:41:38,205 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-27 21:41:39,036 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-08-27 21:41:39,625 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22