/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:37:02,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:37:02,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:37:02,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:37:02,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:37:02,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:37:02,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:37:02,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:37:02,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:37:02,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:37:02,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:37:02,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:37:02,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:37:02,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:37:02,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:37:02,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:37:02,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:37:02,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:37:02,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:37:02,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:37:02,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:37:02,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:37:02,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:37:02,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:37:02,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 04:37:02,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 04:37:02,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 04:37:02,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 04:37:02,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 04:37:02,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 04:37:02,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:37:02,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:37:02,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:37:02,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:37:02,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:37:02,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:37:02,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:37:02,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:37:02,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:37:02,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:37:02,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:37:02,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:37:02,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:37:02,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:37:02,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:37:02,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:37:02,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:37:02,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:37:02,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:37:02,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:37:02,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:37:02,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:37:02,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:37:02,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:37:02,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:37:02,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:37:02,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:37:02,226 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:37:02,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:37:02,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:37:02,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:37:02,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:37:02,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:37:02,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:37:02,227 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:37:02,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:37:02,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:37:02,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:37:02,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:37:02,728 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:37:02,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-11-07 04:37:02,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0f95e88/1ab2c7d6d34d43fabd9f1d894128702e/FLAG23430a518 [2020-11-07 04:37:03,590 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:37:03,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-11-07 04:37:03,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0f95e88/1ab2c7d6d34d43fabd9f1d894128702e/FLAG23430a518 [2020-11-07 04:37:03,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0f95e88/1ab2c7d6d34d43fabd9f1d894128702e [2020-11-07 04:37:03,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:37:03,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:37:03,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:37:03,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:37:03,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:37:03,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:37:03" (1/1) ... [2020-11-07 04:37:03,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cad5941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:03, skipping insertion in model container [2020-11-07 04:37:03,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:37:03" (1/1) ... [2020-11-07 04:37:03,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:37:03,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:37:04,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:37:04,279 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:37:04,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:37:04,483 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:37:04,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04 WrapperNode [2020-11-07 04:37:04,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:37:04,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:37:04,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:37:04,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:37:04,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... [2020-11-07 04:37:04,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... [2020-11-07 04:37:04,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... [2020-11-07 04:37:04,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... [2020-11-07 04:37:04,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... [2020-11-07 04:37:04,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... [2020-11-07 04:37:04,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... [2020-11-07 04:37:04,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:37:04,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:37:04,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:37:04,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:37:04,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-11-07 04:37:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:37:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:37:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 04:37:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:37:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 04:37:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 04:37:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 04:37:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 04:37:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 04:37:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 04:37:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 04:37:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 04:37:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 04:37:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 04:37:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:37:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 04:37:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 04:37:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 04:37:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 04:37:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 04:37:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 04:37:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 04:37:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 04:37:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 04:37:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 04:37:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 04:37:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 04:37:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 04:37:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 04:37:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 04:37:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 04:37:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 04:37:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 04:37:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 04:37:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 04:37:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 04:37:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 04:37:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 04:37:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 04:37:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 04:37:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 04:37:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 04:37:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-11-07 04:37:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-11-07 04:37:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-11-07 04:37:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:37:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:37:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:37:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:37:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:37:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 04:37:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 04:37:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 04:37:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 04:37:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 04:37:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 04:37:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:37:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 04:37:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 04:37:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:37:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 04:37:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 04:37:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:37:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 04:37:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 04:37:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 04:37:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 04:37:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 04:37:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 04:37:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 04:37:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 04:37:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 04:37:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 04:37:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-11-07 04:37:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 04:37:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 04:37:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 04:37:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 04:37:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 04:37:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:37:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 04:37:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 04:37:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 04:37:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 04:37:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 04:37:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 04:37:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 04:37:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 04:37:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 04:37:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 04:37:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 04:37:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 04:37:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-11-07 04:37:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-11-07 04:37:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 04:37:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 04:37:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 04:37:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 04:37:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 04:37:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 04:37:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 04:37:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:37:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:37:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:37:06,858 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:37:06,858 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 04:37:06,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:37:06 BoogieIcfgContainer [2020-11-07 04:37:06,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:37:06,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:37:06,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:37:06,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:37:06,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:37:03" (1/3) ... [2020-11-07 04:37:06,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efd862a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:37:06, skipping insertion in model container [2020-11-07 04:37:06,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:04" (2/3) ... [2020-11-07 04:37:06,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efd862a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:37:06, skipping insertion in model container [2020-11-07 04:37:06,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:37:06" (3/3) ... [2020-11-07 04:37:06,871 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-11-07 04:37:06,888 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:37:06,893 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 04:37:06,906 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 04:37:06,934 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:37:06,935 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:37:06,935 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:37:06,935 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:37:06,935 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:37:06,935 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:37:06,935 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:37:06,936 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:37:06,961 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states. [2020-11-07 04:37:06,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-11-07 04:37:06,985 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:37:06,986 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:37:06,987 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:37:06,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:37:06,993 INFO L82 PathProgramCache]: Analyzing trace with hash 51112487, now seen corresponding path program 1 times [2020-11-07 04:37:07,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:37:07,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418191747] [2020-11-07 04:37:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:37:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,199 WARN L194 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:37:08,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:37:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:37:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:37:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:37:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:37:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 04:37:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-07 04:37:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-11-07 04:37:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:08,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 04:37:08,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418191747] [2020-11-07 04:37:08,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:37:08,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:37:08,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342994463] [2020-11-07 04:37:08,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:37:08,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:37:08,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:37:08,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:37:08,405 INFO L87 Difference]: Start difference. First operand 365 states. Second operand 4 states. [2020-11-07 04:37:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:37:11,143 INFO L93 Difference]: Finished difference Result 584 states and 686 transitions. [2020-11-07 04:37:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 04:37:11,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-11-07 04:37:11,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:37:11,165 INFO L225 Difference]: With dead ends: 584 [2020-11-07 04:37:11,166 INFO L226 Difference]: Without dead ends: 360 [2020-11-07 04:37:11,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:37:11,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-07 04:37:11,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 311. [2020-11-07 04:37:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-11-07 04:37:11,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 341 transitions. [2020-11-07 04:37:11,373 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 341 transitions. Word has length 166 [2020-11-07 04:37:11,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:37:11,374 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 341 transitions. [2020-11-07 04:37:11,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:37:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 341 transitions. [2020-11-07 04:37:11,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-07 04:37:11,380 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:37:11,380 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:37:11,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:37:11,381 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:37:11,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:37:11,382 INFO L82 PathProgramCache]: Analyzing trace with hash -712395353, now seen corresponding path program 1 times [2020-11-07 04:37:11,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:37:11,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974609384] [2020-11-07 04:37:11,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:37:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,118 WARN L194 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:37:12,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:37:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:37:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:37:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:37:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:37:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:37:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-07 04:37:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 04:37:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 04:37:12,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974609384] [2020-11-07 04:37:12,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:37:12,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 04:37:12,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604285607] [2020-11-07 04:37:12,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 04:37:12,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:37:12,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 04:37:12,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 04:37:12,250 INFO L87 Difference]: Start difference. First operand 311 states and 341 transitions. Second operand 5 states. [2020-11-07 04:37:13,759 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:16,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:37:16,020 INFO L93 Difference]: Finished difference Result 504 states and 570 transitions. [2020-11-07 04:37:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 04:37:16,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-11-07 04:37:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:37:16,028 INFO L225 Difference]: With dead ends: 504 [2020-11-07 04:37:16,028 INFO L226 Difference]: Without dead ends: 349 [2020-11-07 04:37:16,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:37:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-11-07 04:37:16,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 301. [2020-11-07 04:37:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 04:37:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 328 transitions. [2020-11-07 04:37:16,164 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 328 transitions. Word has length 167 [2020-11-07 04:37:16,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:37:16,164 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 328 transitions. [2020-11-07 04:37:16,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 04:37:16,165 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 328 transitions. [2020-11-07 04:37:16,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-11-07 04:37:16,168 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:37:16,168 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:37:16,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:37:16,169 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:37:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:37:16,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1255814183, now seen corresponding path program 1 times [2020-11-07 04:37:16,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:37:16,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293432408] [2020-11-07 04:37:16,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:37:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:16,951 WARN L194 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:37:16,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:37:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:37:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:37:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:37:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:37:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 04:37:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-11-07 04:37:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-11-07 04:37:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 04:37:17,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293432408] [2020-11-07 04:37:17,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:37:17,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 04:37:17,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499308321] [2020-11-07 04:37:17,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 04:37:17,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:37:17,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 04:37:17,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 04:37:17,243 INFO L87 Difference]: Start difference. First operand 301 states and 328 transitions. Second operand 10 states. [2020-11-07 04:37:18,365 WARN L194 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:37:19,238 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:37:19,940 WARN L194 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:37:20,705 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:21,402 WARN L194 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:37:22,089 WARN L194 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:24,223 WARN L194 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:37:28,487 INFO L93 Difference]: Finished difference Result 809 states and 931 transitions. [2020-11-07 04:37:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 04:37:28,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-11-07 04:37:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:37:28,496 INFO L225 Difference]: With dead ends: 809 [2020-11-07 04:37:28,497 INFO L226 Difference]: Without dead ends: 628 [2020-11-07 04:37:28,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 04:37:28,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-11-07 04:37:28,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 553. [2020-11-07 04:37:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-11-07 04:37:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 623 transitions. [2020-11-07 04:37:28,769 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 623 transitions. Word has length 176 [2020-11-07 04:37:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:37:28,770 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 623 transitions. [2020-11-07 04:37:28,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 04:37:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 623 transitions. [2020-11-07 04:37:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-11-07 04:37:28,774 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:37:28,774 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:37:28,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:37:28,775 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:37:28,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:37:28,776 INFO L82 PathProgramCache]: Analyzing trace with hash 2108710426, now seen corresponding path program 1 times [2020-11-07 04:37:28,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:37:28,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478491898] [2020-11-07 04:37:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:37:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,459 WARN L194 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:37:29,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:37:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:37:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:37:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:37:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:37:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-07 04:37:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 04:37:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-11-07 04:37:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 04:37:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 04:37:29,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478491898] [2020-11-07 04:37:29,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:37:29,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 04:37:29,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893423402] [2020-11-07 04:37:29,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 04:37:29,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:37:29,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 04:37:29,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 04:37:29,698 INFO L87 Difference]: Start difference. First operand 553 states and 623 transitions. Second operand 10 states. [2020-11-07 04:37:30,776 WARN L194 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:37:32,393 WARN L194 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:33,097 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:37:35,153 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:37:35,892 WARN L194 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:36,642 WARN L194 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:37,453 WARN L194 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:38,155 WARN L194 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:37:38,847 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:40,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:37:40,528 INFO L93 Difference]: Finished difference Result 1259 states and 1508 transitions. [2020-11-07 04:37:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 04:37:40,530 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2020-11-07 04:37:40,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:37:40,536 INFO L225 Difference]: With dead ends: 1259 [2020-11-07 04:37:40,537 INFO L226 Difference]: Without dead ends: 826 [2020-11-07 04:37:40,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-07 04:37:40,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-11-07 04:37:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 737. [2020-11-07 04:37:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-11-07 04:37:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 833 transitions. [2020-11-07 04:37:40,938 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 833 transitions. Word has length 185 [2020-11-07 04:37:40,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:37:40,939 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 833 transitions. [2020-11-07 04:37:40,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 04:37:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 833 transitions. [2020-11-07 04:37:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-11-07 04:37:40,945 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:37:40,945 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:37:40,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:37:40,945 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:37:40,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:37:40,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1021879218, now seen corresponding path program 1 times [2020-11-07 04:37:40,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:37:40,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085609691] [2020-11-07 04:37:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:37:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,637 WARN L194 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:37:41,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:37:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:37:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:37:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:37:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:37:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 04:37:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 04:37:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:37:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:37:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:37:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:37:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:37:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-07 04:37:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-07 04:37:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 04:37:41,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085609691] [2020-11-07 04:37:41,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:37:41,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 04:37:41,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850946712] [2020-11-07 04:37:41,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 04:37:41,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:37:41,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 04:37:41,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 04:37:41,909 INFO L87 Difference]: Start difference. First operand 737 states and 833 transitions. Second operand 10 states. [2020-11-07 04:37:44,652 WARN L194 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:45,368 WARN L194 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:37:46,136 WARN L194 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-11-07 04:37:46,833 WARN L194 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:47,539 WARN L194 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:37:48,213 WARN L194 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:37:50,456 INFO L93 Difference]: Finished difference Result 1489 states and 1756 transitions. [2020-11-07 04:37:50,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 04:37:50,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 219 [2020-11-07 04:37:50,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:37:50,465 INFO L225 Difference]: With dead ends: 1489 [2020-11-07 04:37:50,465 INFO L226 Difference]: Without dead ends: 872 [2020-11-07 04:37:50,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-11-07 04:37:50,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-11-07 04:37:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 756. [2020-11-07 04:37:50,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-11-07 04:37:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 853 transitions. [2020-11-07 04:37:50,893 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 853 transitions. Word has length 219 [2020-11-07 04:37:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:37:50,893 INFO L481 AbstractCegarLoop]: Abstraction has 756 states and 853 transitions. [2020-11-07 04:37:50,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 04:37:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 853 transitions. [2020-11-07 04:37:50,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-11-07 04:37:50,902 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:37:50,902 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:37:50,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 04:37:50,903 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:37:50,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:37:50,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1340897262, now seen corresponding path program 1 times [2020-11-07 04:37:50,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:37:50,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640222767] [2020-11-07 04:37:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:37:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,601 WARN L194 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:37:51,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:37:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:37:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:37:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:37:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:37:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 04:37:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:37:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 04:37:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:37:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:37:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:37:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:37:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:37:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-07 04:37:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-07 04:37:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:37:51,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 04:37:51,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640222767] [2020-11-07 04:37:51,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:37:51,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 04:37:51,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110585616] [2020-11-07 04:37:51,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 04:37:51,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:37:51,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 04:37:51,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-11-07 04:37:51,910 INFO L87 Difference]: Start difference. First operand 756 states and 853 transitions. Second operand 13 states. [2020-11-07 04:37:53,143 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:37:53,846 WARN L194 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:37:54,542 WARN L194 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:55,244 WARN L194 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:37:55,900 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:57,947 WARN L194 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:37:58,646 WARN L194 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:37:59,418 WARN L194 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:38:00,166 WARN L194 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:38:00,869 WARN L194 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:38:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:38:03,326 INFO L93 Difference]: Finished difference Result 1530 states and 1823 transitions. [2020-11-07 04:38:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 04:38:03,330 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-11-07 04:38:03,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:38:03,336 INFO L225 Difference]: With dead ends: 1530 [2020-11-07 04:38:03,336 INFO L226 Difference]: Without dead ends: 894 [2020-11-07 04:38:03,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-11-07 04:38:03,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-11-07 04:38:03,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 768. [2020-11-07 04:38:03,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-11-07 04:38:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 865 transitions. [2020-11-07 04:38:03,663 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 865 transitions. Word has length 219 [2020-11-07 04:38:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:38:03,664 INFO L481 AbstractCegarLoop]: Abstraction has 768 states and 865 transitions. [2020-11-07 04:38:03,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 04:38:03,664 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 865 transitions. [2020-11-07 04:38:03,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-11-07 04:38:03,668 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:38:03,668 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:38:03,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 04:38:03,669 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:38:03,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:38:03,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1041496047, now seen corresponding path program 1 times [2020-11-07 04:38:03,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:38:03,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574917114] [2020-11-07 04:38:03,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:38:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,341 WARN L194 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:38:04,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:38:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:38:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:38:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:38:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:38:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 04:38:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 04:38:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:38:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:38:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-07 04:38:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-07 04:38:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 04:38:04,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574917114] [2020-11-07 04:38:04,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:38:04,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 04:38:04,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128220610] [2020-11-07 04:38:04,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 04:38:04,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:38:04,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 04:38:04,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:38:04,597 INFO L87 Difference]: Start difference. First operand 768 states and 865 transitions. Second operand 7 states. [2020-11-07 04:38:05,641 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:38:06,903 WARN L194 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:38:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:38:11,258 INFO L93 Difference]: Finished difference Result 2237 states and 2682 transitions. [2020-11-07 04:38:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 04:38:11,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-11-07 04:38:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:38:11,274 INFO L225 Difference]: With dead ends: 2237 [2020-11-07 04:38:11,274 INFO L226 Difference]: Without dead ends: 1589 [2020-11-07 04:38:11,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:38:11,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2020-11-07 04:38:11,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1464. [2020-11-07 04:38:11,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1464 states. [2020-11-07 04:38:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1676 transitions. [2020-11-07 04:38:11,922 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1676 transitions. Word has length 219 [2020-11-07 04:38:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:38:11,923 INFO L481 AbstractCegarLoop]: Abstraction has 1464 states and 1676 transitions. [2020-11-07 04:38:11,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 04:38:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1676 transitions. [2020-11-07 04:38:11,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-11-07 04:38:11,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:38:11,928 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:38:11,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 04:38:11,928 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:38:11,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:38:11,929 INFO L82 PathProgramCache]: Analyzing trace with hash -101376324, now seen corresponding path program 1 times [2020-11-07 04:38:11,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:38:11,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221229874] [2020-11-07 04:38:11,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:38:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,690 WARN L194 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:38:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:38:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:38:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:38:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:38:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:38:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:38:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 04:38:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 04:38:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:38:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:38:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-11-07 04:38:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:12,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-07 04:38:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 04:38:13,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221229874] [2020-11-07 04:38:13,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:38:13,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-07 04:38:13,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990913143] [2020-11-07 04:38:13,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 04:38:13,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:38:13,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 04:38:13,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-07 04:38:13,039 INFO L87 Difference]: Start difference. First operand 1464 states and 1676 transitions. Second operand 14 states. [2020-11-07 04:38:14,774 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-11-07 04:38:16,458 WARN L194 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:38:19,011 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-11-07 04:38:20,440 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-11-07 04:38:21,273 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:38:22,051 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:38:23,423 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-11-07 04:38:24,149 WARN L194 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:38:24,990 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:38:25,702 WARN L194 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:38:31,156 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-11-07 04:38:32,352 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:38:33,048 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:38:34,257 WARN L194 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:38:36,711 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-11-07 04:38:38,048 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-11-07 04:38:39,461 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-11-07 04:38:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:38:41,207 INFO L93 Difference]: Finished difference Result 4254 states and 5122 transitions. [2020-11-07 04:38:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-07 04:38:41,214 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 224 [2020-11-07 04:38:41,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:38:41,233 INFO L225 Difference]: With dead ends: 4254 [2020-11-07 04:38:41,233 INFO L226 Difference]: Without dead ends: 3197 [2020-11-07 04:38:41,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=510, Invalid=1940, Unknown=0, NotChecked=0, Total=2450 [2020-11-07 04:38:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2020-11-07 04:38:42,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2755. [2020-11-07 04:38:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-11-07 04:38:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3131 transitions. [2020-11-07 04:38:42,897 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3131 transitions. Word has length 224 [2020-11-07 04:38:42,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:38:42,897 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3131 transitions. [2020-11-07 04:38:42,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 04:38:42,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3131 transitions. [2020-11-07 04:38:42,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-11-07 04:38:42,914 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:38:42,915 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:38:42,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 04:38:42,915 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:38:42,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:38:42,916 INFO L82 PathProgramCache]: Analyzing trace with hash 385744977, now seen corresponding path program 1 times [2020-11-07 04:38:42,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:38:42,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816356531] [2020-11-07 04:38:42,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:38:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,684 WARN L194 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:38:43,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:38:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:38:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:38:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:38:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:38:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:38:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:38:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:38:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:38:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:43,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:38:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:38:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-11-07 04:38:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:38:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-11-07 04:38:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-11-07 04:38:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:38:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:38:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:38:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:38:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:38:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-11-07 04:38:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-11-07 04:38:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:38:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-07 04:38:44,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816356531] [2020-11-07 04:38:44,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:38:44,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-11-07 04:38:44,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821708348] [2020-11-07 04:38:44,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-07 04:38:44,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:38:44,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-07 04:38:44,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-11-07 04:38:44,501 INFO L87 Difference]: Start difference. First operand 2755 states and 3131 transitions. Second operand 18 states. [2020-11-07 04:38:46,036 WARN L194 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:38:46,755 WARN L194 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:38:47,471 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:38:48,171 WARN L194 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:38:48,879 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:38:50,627 WARN L194 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-11-07 04:38:51,444 WARN L194 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-11-07 04:38:52,265 WARN L194 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-11-07 04:38:53,187 WARN L194 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:38:54,135 WARN L194 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:38:55,243 WARN L194 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-11-07 04:38:56,040 WARN L194 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-11-07 04:38:56,834 WARN L194 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-11-07 04:38:59,770 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:39:02,029 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-07 04:39:03,571 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-11-07 04:39:05,094 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-11-07 04:39:06,359 WARN L194 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:39:07,948 WARN L194 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:39:09,297 WARN L194 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-11-07 04:39:10,203 WARN L194 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-11-07 04:39:11,970 WARN L194 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-11-07 04:39:13,064 WARN L194 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:39:14,679 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 218 DAG size of output: 212 [2020-11-07 04:39:16,304 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 223 DAG size of output: 214 [2020-11-07 04:39:18,227 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 215 DAG size of output: 213 [2020-11-07 04:39:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:39:20,311 INFO L93 Difference]: Finished difference Result 5806 states and 6729 transitions. [2020-11-07 04:39:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-11-07 04:39:20,313 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 334 [2020-11-07 04:39:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:39:20,333 INFO L225 Difference]: With dead ends: 5806 [2020-11-07 04:39:20,334 INFO L226 Difference]: Without dead ends: 3443 [2020-11-07 04:39:20,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1410 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=934, Invalid=4322, Unknown=0, NotChecked=0, Total=5256 [2020-11-07 04:39:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3443 states. [2020-11-07 04:39:21,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3443 to 3155. [2020-11-07 04:39:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3155 states. [2020-11-07 04:39:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 3516 transitions. [2020-11-07 04:39:21,951 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 3516 transitions. Word has length 334 [2020-11-07 04:39:21,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:39:21,952 INFO L481 AbstractCegarLoop]: Abstraction has 3155 states and 3516 transitions. [2020-11-07 04:39:21,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-07 04:39:21,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 3516 transitions. [2020-11-07 04:39:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2020-11-07 04:39:21,964 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:39:21,964 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:39:21,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 04:39:21,965 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:39:21,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:39:21,965 INFO L82 PathProgramCache]: Analyzing trace with hash 2071587436, now seen corresponding path program 1 times [2020-11-07 04:39:21,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:39:21,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540306781] [2020-11-07 04:39:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:39:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,680 WARN L194 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:39:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:39:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:39:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:39:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:39:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:39:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:39:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:39:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:39:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:39:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:39:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:39:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:39:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:39:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:39:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:39:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:39:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:39:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:39:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:39:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2020-11-07 04:39:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:39:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:22,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:39:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:39:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:39:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:39:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2020-11-07 04:39:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2020-11-07 04:39:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2020-11-07 04:39:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:39:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:39:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2020-11-07 04:39:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-11-07 04:39:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-11-07 04:39:23,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540306781] [2020-11-07 04:39:23,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:39:23,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-11-07 04:39:23,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563879406] [2020-11-07 04:39:23,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-07 04:39:23,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:39:23,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-07 04:39:23,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:39:23,519 INFO L87 Difference]: Start difference. First operand 3155 states and 3516 transitions. Second operand 16 states. [2020-11-07 04:39:24,804 WARN L194 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:39:27,043 WARN L194 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:39:33,785 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:39:34,593 WARN L194 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:39:35,412 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:39:36,158 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:39:36,892 WARN L194 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:39:37,634 WARN L194 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-07 04:39:38,382 WARN L194 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:39:39,141 WARN L194 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:39:39,933 WARN L194 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:39:40,760 WARN L194 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:39:41,541 WARN L194 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-07 04:39:42,270 WARN L194 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:39:43,698 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 219 DAG size of output: 213 [2020-11-07 04:39:44,489 WARN L194 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-07 04:39:45,849 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 216 DAG size of output: 210 [2020-11-07 04:39:46,665 WARN L194 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:39:47,475 WARN L194 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-11-07 04:39:48,242 WARN L194 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-11-07 04:39:53,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:39:53,089 INFO L93 Difference]: Finished difference Result 9293 states and 10534 transitions. [2020-11-07 04:39:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-11-07 04:39:53,090 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 505 [2020-11-07 04:39:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:39:53,128 INFO L225 Difference]: With dead ends: 9293 [2020-11-07 04:39:53,128 INFO L226 Difference]: Without dead ends: 6271 [2020-11-07 04:39:53,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=518, Invalid=2134, Unknown=0, NotChecked=0, Total=2652 [2020-11-07 04:39:53,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6271 states. [2020-11-07 04:39:56,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6271 to 6101. [2020-11-07 04:39:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6101 states. [2020-11-07 04:39:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 6746 transitions. [2020-11-07 04:39:56,240 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 6746 transitions. Word has length 505 [2020-11-07 04:39:56,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:39:56,241 INFO L481 AbstractCegarLoop]: Abstraction has 6101 states and 6746 transitions. [2020-11-07 04:39:56,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-07 04:39:56,242 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 6746 transitions. [2020-11-07 04:39:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-11-07 04:39:56,261 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:39:56,262 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:39:56,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 04:39:56,262 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:39:56,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:39:56,263 INFO L82 PathProgramCache]: Analyzing trace with hash -386886189, now seen corresponding path program 1 times [2020-11-07 04:39:56,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:39:56,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983602527] [2020-11-07 04:39:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:39:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:56,987 WARN L194 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:39:56,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:39:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:39:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:39:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:39:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:39:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:39:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 04:39:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 04:39:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:39:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:39:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:39:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:39:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-11-07 04:39:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:39:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:39:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:39:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:39:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:39:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:39:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:39:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2020-11-07 04:39:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:39:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:39:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:39:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:39:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:39:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2020-11-07 04:39:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-11-07 04:39:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:39:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2020-11-07 04:39:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:39:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:39:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:39:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2020-11-07 04:39:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:57,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-11-07 04:39:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:39:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 112 proven. 20 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-11-07 04:39:58,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983602527] [2020-11-07 04:39:58,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:39:58,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-11-07 04:39:58,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773225351] [2020-11-07 04:39:58,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-07 04:39:58,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:39:58,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-07 04:39:58,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-11-07 04:39:58,051 INFO L87 Difference]: Start difference. First operand 6101 states and 6746 transitions. Second operand 22 states. [2020-11-07 04:39:59,243 WARN L194 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:40:00,178 WARN L194 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:40:00,925 WARN L194 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-07 04:40:01,658 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:02,393 WARN L194 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:40:03,160 WARN L194 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:05,044 WARN L194 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:40:12,594 WARN L194 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:13,443 WARN L194 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:14,235 WARN L194 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:14,984 WARN L194 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:15,729 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:16,479 WARN L194 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:17,193 WARN L194 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:17,951 WARN L194 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:18,718 WARN L194 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:19,625 WARN L194 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:20,400 WARN L194 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:21,215 WARN L194 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:22,681 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-07 04:40:24,118 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-11-07 04:40:25,482 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-07 04:40:29,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:40:29,944 INFO L93 Difference]: Finished difference Result 11904 states and 13527 transitions. [2020-11-07 04:40:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-11-07 04:40:29,945 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 510 [2020-11-07 04:40:29,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:40:29,983 INFO L225 Difference]: With dead ends: 11904 [2020-11-07 04:40:29,983 INFO L226 Difference]: Without dead ends: 6508 [2020-11-07 04:40:29,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1216 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=902, Invalid=3928, Unknown=0, NotChecked=0, Total=4830 [2020-11-07 04:40:30,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6508 states. [2020-11-07 04:40:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6508 to 5621. [2020-11-07 04:40:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5621 states. [2020-11-07 04:40:32,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5621 states to 5621 states and 6208 transitions. [2020-11-07 04:40:32,724 INFO L78 Accepts]: Start accepts. Automaton has 5621 states and 6208 transitions. Word has length 510 [2020-11-07 04:40:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:40:32,724 INFO L481 AbstractCegarLoop]: Abstraction has 5621 states and 6208 transitions. [2020-11-07 04:40:32,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-07 04:40:32,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5621 states and 6208 transitions. [2020-11-07 04:40:32,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-11-07 04:40:32,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:40:32,743 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:40:32,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 04:40:32,743 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:40:32,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:40:32,744 INFO L82 PathProgramCache]: Analyzing trace with hash 859351179, now seen corresponding path program 2 times [2020-11-07 04:40:32,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:40:32,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805917872] [2020-11-07 04:40:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:40:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,470 WARN L194 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:40:33,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:40:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:40:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:40:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:40:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:40:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:40:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:40:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:40:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:40:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:40:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:40:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:40:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:40:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:40:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:40:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:40:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:40:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:40:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:33,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:40:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-11-07 04:40:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2020-11-07 04:40:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:40:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:40:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:40:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:40:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:40:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2020-11-07 04:40:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-11-07 04:40:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2020-11-07 04:40:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:40:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:40:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2020-11-07 04:40:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-11-07 04:40:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 120 proven. 38 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-11-07 04:40:34,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805917872] [2020-11-07 04:40:34,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:40:34,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-11-07 04:40:34,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746159845] [2020-11-07 04:40:34,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 04:40:34,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:40:34,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 04:40:34,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-11-07 04:40:34,281 INFO L87 Difference]: Start difference. First operand 5621 states and 6208 transitions. Second operand 17 states. [2020-11-07 04:40:37,591 WARN L194 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:40:38,325 WARN L194 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:40:39,069 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:39,847 WARN L194 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:40,549 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:41,241 WARN L194 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:40:44,008 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:40:44,783 WARN L194 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:40:53,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:40:53,096 INFO L93 Difference]: Finished difference Result 16457 states and 19239 transitions. [2020-11-07 04:40:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-07 04:40:53,097 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 510 [2020-11-07 04:40:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:40:53,150 INFO L225 Difference]: With dead ends: 16457 [2020-11-07 04:40:53,151 INFO L226 Difference]: Without dead ends: 9887 [2020-11-07 04:40:53,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 120 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=486, Invalid=1676, Unknown=0, NotChecked=0, Total=2162 [2020-11-07 04:40:53,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9887 states. [2020-11-07 04:40:56,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9887 to 7505. [2020-11-07 04:40:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7505 states. [2020-11-07 04:40:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 8432 transitions. [2020-11-07 04:40:56,498 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 8432 transitions. Word has length 510 [2020-11-07 04:40:56,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:40:56,499 INFO L481 AbstractCegarLoop]: Abstraction has 7505 states and 8432 transitions. [2020-11-07 04:40:56,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 04:40:56,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 8432 transitions. [2020-11-07 04:40:56,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2020-11-07 04:40:56,519 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:40:56,520 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:40:56,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 04:40:56,520 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:40:56,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:40:56,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1276965860, now seen corresponding path program 1 times [2020-11-07 04:40:56,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:40:56,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294966331] [2020-11-07 04:40:56,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:40:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,230 WARN L194 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:40:57,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:40:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:40:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:40:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:40:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:40:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:40:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:40:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:40:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:40:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:40:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:40:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:40:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:40:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:40:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:40:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:40:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:40:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:40:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:40:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:40:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-11-07 04:40:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2020-11-07 04:40:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:40:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:40:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:40:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:40:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:40:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2020-11-07 04:40:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-11-07 04:40:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:40:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2020-11-07 04:40:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:40:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:40:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:40:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-11-07 04:40:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2020-11-07 04:40:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:40:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 129 proven. 45 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-11-07 04:40:57,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294966331] [2020-11-07 04:40:57,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:40:57,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-11-07 04:40:57,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682375244] [2020-11-07 04:40:57,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-07 04:40:57,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:40:57,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-07 04:40:57,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-11-07 04:40:57,918 INFO L87 Difference]: Start difference. First operand 7505 states and 8432 transitions. Second operand 19 states. [2020-11-07 04:40:59,122 WARN L194 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:41:00,039 WARN L194 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:41:00,783 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-07 04:41:01,615 WARN L194 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:41:02,332 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:41:03,023 WARN L194 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:41:04,733 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:41:05,555 WARN L194 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:41:08,875 WARN L194 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:41:09,997 WARN L194 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:41:10,790 WARN L194 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:41:11,502 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:41:13,188 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:41:14,046 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:41:17,637 WARN L194 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:41:18,359 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:41:19,051 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:41:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:41:23,678 INFO L93 Difference]: Finished difference Result 15395 states and 17844 transitions. [2020-11-07 04:41:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-07 04:41:23,679 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 520 [2020-11-07 04:41:23,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:41:23,736 INFO L225 Difference]: With dead ends: 15395 [2020-11-07 04:41:23,736 INFO L226 Difference]: Without dead ends: 8595 [2020-11-07 04:41:23,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=660, Invalid=2646, Unknown=0, NotChecked=0, Total=3306 [2020-11-07 04:41:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8595 states. [2020-11-07 04:41:27,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8595 to 7317. [2020-11-07 04:41:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7317 states. [2020-11-07 04:41:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 8170 transitions. [2020-11-07 04:41:27,139 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 8170 transitions. Word has length 520 [2020-11-07 04:41:27,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:41:27,140 INFO L481 AbstractCegarLoop]: Abstraction has 7317 states and 8170 transitions. [2020-11-07 04:41:27,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-07 04:41:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 8170 transitions. [2020-11-07 04:41:27,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-11-07 04:41:27,161 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:41:27,162 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:41:27,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 04:41:27,162 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:41:27,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:41:27,163 INFO L82 PathProgramCache]: Analyzing trace with hash 2017965333, now seen corresponding path program 1 times [2020-11-07 04:41:27,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:41:27,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485437497] [2020-11-07 04:41:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:41:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,881 WARN L194 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:41:27,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:41:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:41:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:41:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:41:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:41:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:41:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:41:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:27,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:41:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:41:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:41:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:41:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:41:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:41:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:41:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:41:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:41:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:41:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:41:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:41:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:41:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-11-07 04:41:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2020-11-07 04:41:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:41:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:41:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:41:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:41:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:41:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2020-11-07 04:41:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2020-11-07 04:41:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:41:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-11-07 04:41:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:41:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:41:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:41:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2020-11-07 04:41:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2020-11-07 04:41:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:41:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 139 proven. 36 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-11-07 04:41:28,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485437497] [2020-11-07 04:41:28,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:41:28,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-11-07 04:41:28,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594948429] [2020-11-07 04:41:28,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-07 04:41:28,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:41:28,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-07 04:41:28,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-11-07 04:41:28,777 INFO L87 Difference]: Start difference. First operand 7317 states and 8170 transitions. Second operand 18 states. [2020-11-07 04:41:29,956 WARN L194 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:41:33,183 WARN L194 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:41:33,955 WARN L194 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:41:35,403 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-11-07 04:41:36,178 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:41:37,671 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 215 DAG size of output: 211 [2020-11-07 04:41:38,447 WARN L194 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:41:39,783 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-11-07 04:41:40,565 WARN L194 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:41:41,457 WARN L194 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:41:42,158 WARN L194 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:41:42,839 WARN L194 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:41:45,695 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:41:46,538 WARN L194 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:41:57,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:41:57,377 INFO L93 Difference]: Finished difference Result 15876 states and 18618 transitions. [2020-11-07 04:41:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-11-07 04:41:57,378 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 521 [2020-11-07 04:41:57,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:41:57,422 INFO L225 Difference]: With dead ends: 15876 [2020-11-07 04:41:57,423 INFO L226 Difference]: Without dead ends: 11392 [2020-11-07 04:41:57,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 134 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=769, Invalid=3391, Unknown=0, NotChecked=0, Total=4160 [2020-11-07 04:41:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11392 states. [2020-11-07 04:42:01,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11392 to 8895. [2020-11-07 04:42:01,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8895 states. [2020-11-07 04:42:01,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 9892 transitions. [2020-11-07 04:42:01,766 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 9892 transitions. Word has length 521 [2020-11-07 04:42:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:42:01,767 INFO L481 AbstractCegarLoop]: Abstraction has 8895 states and 9892 transitions. [2020-11-07 04:42:01,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-07 04:42:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 9892 transitions. [2020-11-07 04:42:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-11-07 04:42:01,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:42:01,786 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:42:01,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 04:42:01,786 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:42:01,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:42:01,787 INFO L82 PathProgramCache]: Analyzing trace with hash 811731381, now seen corresponding path program 1 times [2020-11-07 04:42:01,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:42:01,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841645684] [2020-11-07 04:42:01,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:42:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,533 WARN L194 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:42:02,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:42:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:42:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:42:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:42:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:42:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:42:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:42:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:42:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:42:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:42:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:42:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:42:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:42:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:42:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:42:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:42:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:42:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:42:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:42:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:02,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:42:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-11-07 04:42:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2020-11-07 04:42:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:42:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:42:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:42:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:42:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:42:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:42:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2020-11-07 04:42:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-11-07 04:42:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-11-07 04:42:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:42:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:42:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2020-11-07 04:42:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2020-11-07 04:42:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:03,455 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 133 proven. 64 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-11-07 04:42:03,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841645684] [2020-11-07 04:42:03,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:42:03,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-11-07 04:42:03,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142003435] [2020-11-07 04:42:03,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-07 04:42:03,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:42:03,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-07 04:42:03,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-11-07 04:42:03,457 INFO L87 Difference]: Start difference. First operand 8895 states and 9892 transitions. Second operand 18 states. [2020-11-07 04:42:04,643 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:42:08,051 WARN L194 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:42:08,865 WARN L194 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:42:10,380 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 215 DAG size of output: 209 [2020-11-07 04:42:11,109 WARN L194 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:42:12,574 WARN L194 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 220 DAG size of output: 211 [2020-11-07 04:42:13,249 WARN L194 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:42:13,966 WARN L194 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 04:42:15,409 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 215 DAG size of output: 209 [2020-11-07 04:42:16,203 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-07 04:42:17,068 WARN L194 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-11-07 04:42:17,803 WARN L194 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-07 04:42:18,496 WARN L194 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:42:21,008 WARN L194 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:42:21,823 WARN L194 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:42:23,281 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-11-07 04:42:24,832 WARN L194 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 219 DAG size of output: 215 [2020-11-07 04:42:26,256 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-11-07 04:42:27,338 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:42:28,114 WARN L194 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:42:33,775 WARN L194 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:42:35,568 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:42:36,389 WARN L194 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:42:37,990 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-07 04:42:39,525 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-11-07 04:42:40,929 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-07 04:42:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:42:53,104 INFO L93 Difference]: Finished difference Result 21014 states and 24794 transitions. [2020-11-07 04:42:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-11-07 04:42:53,105 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 532 [2020-11-07 04:42:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:42:53,169 INFO L225 Difference]: With dead ends: 21014 [2020-11-07 04:42:53,169 INFO L226 Difference]: Without dead ends: 15638 [2020-11-07 04:42:53,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 158 SyntacticMatches, 7 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3286 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=1616, Invalid=7890, Unknown=0, NotChecked=0, Total=9506 [2020-11-07 04:42:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15638 states. [2020-11-07 04:42:58,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15638 to 11095. [2020-11-07 04:42:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11095 states. [2020-11-07 04:42:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11095 states to 11095 states and 12290 transitions. [2020-11-07 04:42:58,211 INFO L78 Accepts]: Start accepts. Automaton has 11095 states and 12290 transitions. Word has length 532 [2020-11-07 04:42:58,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:42:58,212 INFO L481 AbstractCegarLoop]: Abstraction has 11095 states and 12290 transitions. [2020-11-07 04:42:58,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-07 04:42:58,212 INFO L276 IsEmpty]: Start isEmpty. Operand 11095 states and 12290 transitions. [2020-11-07 04:42:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2020-11-07 04:42:58,239 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:42:58,239 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:42:58,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 04:42:58,240 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:42:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:42:58,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1376992909, now seen corresponding path program 1 times [2020-11-07 04:42:58,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:42:58,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088059780] [2020-11-07 04:42:58,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:42:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:58,969 WARN L194 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:42:58,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:58,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:42:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:42:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:58,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:42:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:58,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:42:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:42:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:42:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:42:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:42:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:42:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:42:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:42:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:42:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:42:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:42:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:42:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:42:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:42:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:42:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:42:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:42:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-11-07 04:42:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2020-11-07 04:42:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:42:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:42:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:42:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:42:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:42:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:42:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2020-11-07 04:42:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-11-07 04:42:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2020-11-07 04:42:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:42:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:42:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2020-11-07 04:42:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:42:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:42:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:42:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-11-07 04:42:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:42:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-11-07 04:42:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-11-07 04:42:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:42:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2020-11-07 04:42:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:42:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:42:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:42:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-11-07 04:42:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 686 [2020-11-07 04:42:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:42:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 240 proven. 3 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2020-11-07 04:42:59,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088059780] [2020-11-07 04:42:59,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:42:59,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 04:42:59,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331142515] [2020-11-07 04:42:59,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 04:42:59,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:42:59,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 04:42:59,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-07 04:42:59,628 INFO L87 Difference]: Start difference. First operand 11095 states and 12290 transitions. Second operand 11 states. [2020-11-07 04:43:00,791 WARN L194 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:43:02,464 WARN L194 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:43:09,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:43:09,737 INFO L93 Difference]: Finished difference Result 13765 states and 15675 transitions. [2020-11-07 04:43:09,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-07 04:43:09,738 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 700 [2020-11-07 04:43:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:43:09,759 INFO L225 Difference]: With dead ends: 13765 [2020-11-07 04:43:09,759 INFO L226 Difference]: Without dead ends: 5545 [2020-11-07 04:43:09,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=315, Invalid=1245, Unknown=0, NotChecked=0, Total=1560 [2020-11-07 04:43:09,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5545 states. [2020-11-07 04:43:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5545 to 4726. [2020-11-07 04:43:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4726 states. [2020-11-07 04:43:12,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4726 states to 4726 states and 5116 transitions. [2020-11-07 04:43:12,096 INFO L78 Accepts]: Start accepts. Automaton has 4726 states and 5116 transitions. Word has length 700 [2020-11-07 04:43:12,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:43:12,097 INFO L481 AbstractCegarLoop]: Abstraction has 4726 states and 5116 transitions. [2020-11-07 04:43:12,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 04:43:12,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4726 states and 5116 transitions. [2020-11-07 04:43:12,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2020-11-07 04:43:12,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:43:12,112 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:43:12,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 04:43:12,112 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:43:12,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:43:12,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1562638097, now seen corresponding path program 2 times [2020-11-07 04:43:12,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:43:12,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047836593] [2020-11-07 04:43:12,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:43:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,864 WARN L194 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:43:12,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:43:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:43:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:43:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:43:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:43:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:43:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:43:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:43:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:12,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:43:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:43:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:43:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:43:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:43:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:43:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:43:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:43:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:43:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:43:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2020-11-07 04:43:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2020-11-07 04:43:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:43:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:43:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:43:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:43:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:43:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:43:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2020-11-07 04:43:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2020-11-07 04:43:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:43:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:43:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:43:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:43:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:43:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:43:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2020-11-07 04:43:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2020-11-07 04:43:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 577 [2020-11-07 04:43:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:43:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2020-11-07 04:43:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-11-07 04:43:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 206 proven. 79 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-11-07 04:43:13,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047836593] [2020-11-07 04:43:13,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:43:13,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-11-07 04:43:13,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806964199] [2020-11-07 04:43:13,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-07 04:43:13,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:43:13,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-07 04:43:13,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-11-07 04:43:13,947 INFO L87 Difference]: Start difference. First operand 4726 states and 5116 transitions. Second operand 19 states. [2020-11-07 04:43:15,161 WARN L194 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:43:17,044 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:43:19,000 WARN L194 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:43:21,148 WARN L194 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:43:21,945 WARN L194 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:43:23,330 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-11-07 04:43:24,052 WARN L194 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:43:25,431 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 215 DAG size of output: 211 [2020-11-07 04:43:26,178 WARN L194 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:43:27,516 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2020-11-07 04:43:34,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:43:34,773 INFO L93 Difference]: Finished difference Result 8640 states and 9655 transitions. [2020-11-07 04:43:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-11-07 04:43:34,774 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 647 [2020-11-07 04:43:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:43:34,796 INFO L225 Difference]: With dead ends: 8640 [2020-11-07 04:43:34,796 INFO L226 Difference]: Without dead ends: 5489 [2020-11-07 04:43:34,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 157 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=632, Invalid=2448, Unknown=0, NotChecked=0, Total=3080 [2020-11-07 04:43:34,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2020-11-07 04:43:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 4482. [2020-11-07 04:43:37,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4482 states. [2020-11-07 04:43:37,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4482 states to 4482 states and 4807 transitions. [2020-11-07 04:43:37,037 INFO L78 Accepts]: Start accepts. Automaton has 4482 states and 4807 transitions. Word has length 647 [2020-11-07 04:43:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:43:37,037 INFO L481 AbstractCegarLoop]: Abstraction has 4482 states and 4807 transitions. [2020-11-07 04:43:37,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-07 04:43:37,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4482 states and 4807 transitions. [2020-11-07 04:43:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-11-07 04:43:37,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:43:37,047 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:43:37,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-07 04:43:37,048 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:43:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:43:37,048 INFO L82 PathProgramCache]: Analyzing trace with hash -378110991, now seen corresponding path program 1 times [2020-11-07 04:43:37,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:43:37,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130745370] [2020-11-07 04:43:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:43:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,845 WARN L194 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:43:37,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:43:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:43:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:43:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:43:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:43:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:43:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:43:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:43:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:37,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:43:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:43:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:43:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:43:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:43:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:43:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:43:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:43:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:43:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:43:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-11-07 04:43:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2020-11-07 04:43:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:43:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:43:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:43:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:43:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:43:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:43:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2020-11-07 04:43:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2020-11-07 04:43:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:43:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:43:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-11-07 04:43:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:43:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2020-11-07 04:43:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2020-11-07 04:43:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:43:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2020-11-07 04:43:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:43:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:43:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:43:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-11-07 04:43:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2020-11-07 04:43:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:43:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 174 proven. 87 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2020-11-07 04:43:38,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130745370] [2020-11-07 04:43:38,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:43:38,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-11-07 04:43:38,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661897713] [2020-11-07 04:43:38,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 04:43:38,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:43:38,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 04:43:38,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-11-07 04:43:38,715 INFO L87 Difference]: Start difference. First operand 4482 states and 4807 transitions. Second operand 17 states. [2020-11-07 04:43:40,832 WARN L194 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:43:42,662 WARN L194 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:43:47,752 WARN L194 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-11-07 04:43:48,615 WARN L194 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-11-07 04:43:49,393 WARN L194 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:43:50,165 WARN L194 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-07 04:43:50,939 WARN L194 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:43:52,328 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-11-07 04:43:58,722 WARN L194 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-11-07 04:43:59,529 WARN L194 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-11-07 04:44:00,316 WARN L194 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:44:01,106 WARN L194 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-11-07 04:44:01,851 WARN L194 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:44:04,688 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 216 DAG size of output: 210 [2020-11-07 04:44:06,184 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 222 DAG size of output: 212 [2020-11-07 04:44:08,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:44:08,630 INFO L93 Difference]: Finished difference Result 11858 states and 13127 transitions. [2020-11-07 04:44:08,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-11-07 04:44:08,631 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 635 [2020-11-07 04:44:08,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:44:08,659 INFO L225 Difference]: With dead ends: 11858 [2020-11-07 04:44:08,659 INFO L226 Difference]: Without dead ends: 7513 [2020-11-07 04:44:08,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 159 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1208 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=996, Invalid=3560, Unknown=0, NotChecked=0, Total=4556 [2020-11-07 04:44:08,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7513 states. [2020-11-07 04:44:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7513 to 5902. [2020-11-07 04:44:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5902 states. [2020-11-07 04:44:11,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 6312 transitions. [2020-11-07 04:44:11,801 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 6312 transitions. Word has length 635 [2020-11-07 04:44:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:44:11,802 INFO L481 AbstractCegarLoop]: Abstraction has 5902 states and 6312 transitions. [2020-11-07 04:44:11,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 04:44:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 6312 transitions. [2020-11-07 04:44:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-11-07 04:44:11,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:44:11,814 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:44:11,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-07 04:44:11,814 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:44:11,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:44:11,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2098385839, now seen corresponding path program 1 times [2020-11-07 04:44:11,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:44:11,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526873585] [2020-11-07 04:44:11,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:44:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,558 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:44:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-07 04:44:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 04:44:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 04:44:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 04:44:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:44:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:44:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 04:44:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:44:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:44:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:44:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 04:44:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-11-07 04:44:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:44:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:44:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:44:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:44:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:44:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-07 04:44:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-11-07 04:44:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:44:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-11-07 04:44:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2020-11-07 04:44:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 04:44:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 04:44:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 04:44:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:12,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:44:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 04:44:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:44:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2020-11-07 04:44:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2020-11-07 04:44:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:44:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:44:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:44:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-11-07 04:44:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 04:44:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2020-11-07 04:44:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2020-11-07 04:44:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:44:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2020-11-07 04:44:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:44:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 04:44:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 04:44:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-11-07 04:44:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 621 [2020-11-07 04:44:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:44:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 162 proven. 16 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2020-11-07 04:44:13,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526873585] [2020-11-07 04:44:13,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:44:13,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-11-07 04:44:13,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494076081] [2020-11-07 04:44:13,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 04:44:13,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:44:13,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 04:44:13,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-07 04:44:13,304 INFO L87 Difference]: Start difference. First operand 5902 states and 6312 transitions. Second operand 17 states. [2020-11-07 04:44:14,695 WARN L194 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:44:15,532 WARN L194 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:44:16,285 WARN L194 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:44:17,032 WARN L194 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:44:17,749 WARN L194 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:44:22,664 WARN L194 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:44:23,408 WARN L194 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:44:24,155 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 04:44:24,917 WARN L194 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:44:25,726 WARN L194 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 04:44:26,445 WARN L194 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:44:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:44:27,107 INFO L93 Difference]: Finished difference Result 6875 states and 7386 transitions. [2020-11-07 04:44:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-07 04:44:27,108 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 635 [2020-11-07 04:44:27,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:44:27,110 INFO L225 Difference]: With dead ends: 6875 [2020-11-07 04:44:27,110 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 04:44:27,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=311, Invalid=1021, Unknown=0, NotChecked=0, Total=1332 [2020-11-07 04:44:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 04:44:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 04:44:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 04:44:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 04:44:27,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 635 [2020-11-07 04:44:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:44:27,126 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 04:44:27,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 04:44:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 04:44:27,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 04:44:27,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-07 04:44:27,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 04:44:27,492 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 247 [2020-11-07 04:44:27,981 WARN L194 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 248 [2020-11-07 04:44:28,562 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:44:28,896 WARN L194 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:44:29,056 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 250 [2020-11-07 04:44:31,274 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 243 [2020-11-07 04:44:31,531 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 242 [2020-11-07 04:44:31,811 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 266 [2020-11-07 04:44:32,183 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 237 [2020-11-07 04:44:33,058 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 237 [2020-11-07 04:44:33,313 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 238 [2020-11-07 04:44:33,507 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 265 [2020-11-07 04:44:34,146 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 238 [2020-11-07 04:44:34,330 WARN L194 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 238 [2020-11-07 04:44:34,506 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 262 [2020-11-07 04:44:34,740 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 243 [2020-11-07 04:44:34,907 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 242 [2020-11-07 04:44:35,602 WARN L194 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 237 [2020-11-07 04:44:35,786 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 268 [2020-11-07 04:44:35,975 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 262 [2020-11-07 04:44:36,240 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 266 [2020-11-07 04:44:36,460 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 238 [2020-11-07 04:44:36,734 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 263 [2020-11-07 04:44:36,947 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 243 [2020-11-07 04:44:37,224 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 238 [2020-11-07 04:44:37,915 WARN L194 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 237 [2020-11-07 04:44:38,125 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 266 [2020-11-07 04:44:38,273 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 263 [2020-11-07 04:44:42,558 WARN L194 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:44:46,106 WARN L194 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:44:46,476 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:44:47,397 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:44:47,918 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 218 [2020-11-07 04:44:48,049 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 245 [2020-11-07 04:44:51,335 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:44:51,602 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:44:52,384 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 266 [2020-11-07 04:44:53,334 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 267 [2020-11-07 04:44:54,226 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-11-07 04:44:54,635 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 242 [2020-11-07 04:44:54,827 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 244 [2020-11-07 04:44:55,506 WARN L194 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 251 [2020-11-07 04:44:55,937 WARN L194 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 255 [2020-11-07 04:44:56,200 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 267 [2020-11-07 04:44:56,869 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-11-07 04:44:57,577 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 238 [2020-11-07 04:44:57,792 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 221 [2020-11-07 04:44:59,641 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 733 DAG size of output: 479 [2020-11-07 04:45:03,228 WARN L194 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:45:06,793 WARN L194 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 764 DAG size of output: 556 [2020-11-07 04:45:08,554 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 733 DAG size of output: 479 [2020-11-07 04:45:12,156 WARN L194 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:45:17,165 WARN L194 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 817 DAG size of output: 603 [2020-11-07 04:45:20,378 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 817 DAG size of output: 603 [2020-11-07 04:45:21,200 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:45:21,404 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:45:23,354 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:45:23,559 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:45:25,739 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 220 [2020-11-07 04:45:26,272 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 222 [2020-11-07 04:45:27,263 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 242 [2020-11-07 04:45:27,442 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 247 [2020-11-07 04:45:27,999 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 242 [2020-11-07 04:45:28,124 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 245 [2020-11-07 04:45:36,171 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 733 DAG size of output: 479 [2020-11-07 04:45:41,376 WARN L194 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:45:41,743 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:45:42,102 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:45:42,490 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:45:44,160 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:45:44,373 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:45:44,629 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 224 [2020-11-07 04:45:45,187 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:45:45,359 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:45:45,514 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 266 [2020-11-07 04:45:45,716 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:45:47,668 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 733 DAG size of output: 479 [2020-11-07 04:45:49,396 WARN L194 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 733 DAG size of output: 479 [2020-11-07 04:45:50,192 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 259 [2020-11-07 04:45:51,031 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 235 [2020-11-07 04:45:51,210 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 237 [2020-11-07 04:45:51,781 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 245 [2020-11-07 04:45:52,080 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 248 [2020-11-07 04:45:52,309 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 261 [2020-11-07 04:45:52,510 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 259 [2020-11-07 04:45:52,958 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2020-11-07 04:45:53,818 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 247 [2020-11-07 04:45:53,967 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 250 [2020-11-07 04:45:54,623 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 242 [2020-11-07 04:45:54,803 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 247 [2020-11-07 04:45:55,303 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 248 [2020-11-07 04:45:55,455 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2020-11-07 04:45:55,834 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 247 [2020-11-07 04:45:55,985 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 250 [2020-11-07 04:45:57,863 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 219 [2020-11-07 04:45:58,011 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 239 [2020-11-07 04:45:58,887 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 266 [2020-11-07 04:46:04,079 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 223 [2020-11-07 04:46:04,778 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:46:05,034 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:46:05,781 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 266 [2020-11-07 04:46:06,271 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 242 [2020-11-07 04:46:06,392 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 245 [2020-11-07 04:46:07,026 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:46:07,186 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:46:07,553 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:46:08,054 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:46:08,904 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:46:09,557 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:46:09,741 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:46:13,556 WARN L194 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:46:18,638 WARN L194 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 1022 DAG size of output: 738 [2020-11-07 04:46:18,887 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 227 [2020-11-07 04:46:19,083 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 226 [2020-11-07 04:46:19,257 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 220 [2020-11-07 04:46:19,617 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 216 [2020-11-07 04:46:20,131 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 216 [2020-11-07 04:46:20,331 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 217 [2020-11-07 04:46:20,721 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 222 [2020-11-07 04:46:21,132 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 217 [2020-11-07 04:46:21,243 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 217 [2020-11-07 04:46:21,600 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 227 [2020-11-07 04:46:21,744 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 226 [2020-11-07 04:46:22,372 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 216 [2020-11-07 04:46:23,072 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 217 [2020-11-07 04:46:23,501 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 227 [2020-11-07 04:46:23,693 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 217 [2020-11-07 04:46:23,965 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 222 [2020-11-07 04:46:24,354 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 216 [2020-11-07 04:46:25,371 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:46:25,510 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:46:28,843 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 817 DAG size of output: 603 [2020-11-07 04:46:32,388 WARN L194 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:46:32,918 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 243 [2020-11-07 04:46:33,049 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 246 [2020-11-07 04:46:33,638 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:46:33,803 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:46:34,423 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:46:34,565 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:46:35,621 WARN L194 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 235 [2020-11-07 04:46:35,898 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 237 [2020-11-07 04:46:37,592 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 269 [2020-11-07 04:46:40,209 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 235 [2020-11-07 04:46:40,485 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 237 [2020-11-07 04:46:41,967 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 225 [2020-11-07 04:46:42,217 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 269 [2020-11-07 04:46:47,987 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 230 [2020-11-07 04:46:48,115 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 233 [2020-11-07 04:46:52,006 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:46:52,172 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:46:52,455 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 220 [2020-11-07 04:46:52,814 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 222 [2020-11-07 04:46:53,335 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 222 [2020-11-07 04:46:54,843 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2020-11-07 04:46:55,017 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 265 [2020-11-07 04:46:55,635 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:46:55,773 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:46:58,883 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 733 DAG size of output: 479 [2020-11-07 04:47:02,036 WARN L194 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 817 DAG size of output: 603 [2020-11-07 04:47:02,868 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 266 [2020-11-07 04:47:09,431 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:47:09,571 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:47:10,041 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 243 [2020-11-07 04:47:10,180 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 246 [2020-11-07 04:47:13,968 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:47:14,118 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:47:14,533 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 248 [2020-11-07 04:47:14,681 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 250 [2020-11-07 04:47:17,842 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:47:18,385 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:47:18,577 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:47:19,727 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:47:20,456 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:47:20,641 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:47:20,937 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:47:25,347 WARN L194 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 913 DAG size of output: 574 [2020-11-07 04:47:26,053 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 256 [2020-11-07 04:47:26,201 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 256 [2020-11-07 04:47:26,495 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 258 [2020-11-07 04:47:26,722 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 256 [2020-11-07 04:47:27,776 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 258 [2020-11-07 04:47:28,170 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 256 [2020-11-07 04:47:28,307 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 256 [2020-11-07 04:47:29,123 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2020-11-07 04:47:29,355 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 233 [2020-11-07 04:47:30,560 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 266 [2020-11-07 04:47:30,729 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 224 [2020-11-07 04:47:34,080 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 835 DAG size of output: 610 [2020-11-07 04:47:39,236 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 242 [2020-11-07 04:47:39,354 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 245 [2020-11-07 04:47:40,111 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 227 [2020-11-07 04:47:40,252 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2020-11-07 04:47:43,886 WARN L194 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 843 DAG size of output: 606 [2020-11-07 04:47:45,120 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 238 [2020-11-07 04:47:45,249 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 221 [2020-11-07 04:47:45,908 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 242 [2020-11-07 04:47:46,063 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 247 [2020-11-07 04:47:46,903 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 267 [2020-11-07 04:47:47,759 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-11-07 04:47:48,166 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 242 [2020-11-07 04:47:48,359 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 244 [2020-11-07 04:47:48,966 WARN L194 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 251 [2020-11-07 04:47:49,280 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 255 [2020-11-07 04:47:49,519 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 267 [2020-11-07 04:47:50,166 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-11-07 04:47:50,615 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 242 [2020-11-07 04:47:50,737 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 245 [2020-11-07 04:47:55,503 WARN L194 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 250 DAG size of output: 35 [2020-11-07 04:47:57,407 WARN L194 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 221 DAG size of output: 32 [2020-11-07 04:48:00,372 WARN L194 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 290 DAG size of output: 58 [2020-11-07 04:48:02,773 WARN L194 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 225 DAG size of output: 35 [2020-11-07 04:48:05,250 WARN L194 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 225 DAG size of output: 35 [2020-11-07 04:48:07,644 WARN L194 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 227 DAG size of output: 37 [2020-11-07 04:48:16,417 WARN L194 SmtUtils]: Spent 8.70 s on a formula simplification. DAG size of input: 498 DAG size of output: 44 [2020-11-07 04:48:19,725 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 301 DAG size of output: 54 [2020-11-07 04:48:28,502 WARN L194 SmtUtils]: Spent 8.70 s on a formula simplification. DAG size of input: 480 DAG size of output: 42 [2020-11-07 04:48:29,886 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 166 DAG size of output: 27 [2020-11-07 04:48:38,698 WARN L194 SmtUtils]: Spent 8.69 s on a formula simplification. DAG size of input: 480 DAG size of output: 42 [2020-11-07 04:48:42,914 WARN L194 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 334 DAG size of output: 38 [2020-11-07 04:48:43,201 WARN L194 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 1 [2020-11-07 04:48:43,955 WARN L194 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 1 [2020-11-07 04:48:44,644 WARN L194 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 1 [2020-11-07 04:48:46,075 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 160 DAG size of output: 19 [2020-11-07 04:48:46,380 WARN L194 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 1 [2020-11-07 04:48:48,551 WARN L194 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 459 DAG size of output: 1 [2020-11-07 04:48:50,041 WARN L194 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 172 DAG size of output: 31 [2020-11-07 04:48:51,919 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 177 DAG size of output: 24 [2020-11-07 04:48:53,337 WARN L194 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 169 DAG size of output: 29 [2020-11-07 04:48:54,254 WARN L194 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 19 [2020-11-07 04:48:55,714 WARN L194 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 169 DAG size of output: 29 [2020-11-07 04:49:09,432 WARN L194 SmtUtils]: Spent 13.67 s on a formula simplification. DAG size of input: 530 DAG size of output: 51 [2020-11-07 04:49:10,361 WARN L194 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 19 [2020-11-07 04:49:12,635 WARN L194 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 239 DAG size of output: 30 [2020-11-07 04:49:16,488 WARN L194 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 339 DAG size of output: 43 [2020-11-07 04:49:25,240 WARN L194 SmtUtils]: Spent 8.75 s on a formula simplification. DAG size of input: 480 DAG size of output: 42 [2020-11-07 04:49:32,000 WARN L194 SmtUtils]: Spent 6.75 s on a formula simplification. DAG size of input: 424 DAG size of output: 42 [2020-11-07 04:49:35,889 WARN L194 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 339 DAG size of output: 43 [2020-11-07 04:49:44,658 WARN L194 SmtUtils]: Spent 8.76 s on a formula simplification. DAG size of input: 480 DAG size of output: 42 [2020-11-07 04:49:46,124 WARN L194 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 191 DAG size of output: 30 [2020-11-07 04:49:49,301 WARN L194 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 164 DAG size of output: 25 [2020-11-07 04:49:58,476 WARN L194 SmtUtils]: Spent 9.16 s on a formula simplification. DAG size of input: 308 DAG size of output: 48 [2020-11-07 04:50:01,830 WARN L194 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 167 DAG size of output: 28 [2020-11-07 04:50:10,426 WARN L194 SmtUtils]: Spent 8.59 s on a formula simplification. DAG size of input: 466 DAG size of output: 42