/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 -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-b8ad66e [2020-10-23 20:21:57,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:21:57,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:21:57,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:21:57,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:21:57,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:21:57,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:21:57,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:21:57,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:21:57,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:21:57,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:21:57,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:21:57,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:21:57,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:21:57,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:21:57,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:21:57,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:21:57,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:21:57,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:21:57,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:21:57,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:21:57,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:21:57,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:21:57,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:21:57,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:21:57,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:21:57,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:21:57,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:21:57,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:21:57,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:21:57,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:21:57,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:21:57,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:21:57,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:21:57,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:21:57,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:21:57,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:21:57,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:21:57,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:21:57,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:21:57,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:21:57,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:21:57,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:21:57,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:21:57,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:21:57,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:21:57,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:21:57,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:21:57,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:21:57,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:21:57,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:21:57,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:21:57,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:21:57,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:21:57,414 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:21:57,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:21:57,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:21:57,414 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:21:57,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:21:57,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:21:57,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:21:57,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:21:57,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:21:57,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:21:57,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:21:57,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:21:57,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:21:57,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:21:57,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:21:57,909 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:21:57,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-10-23 20:21:57,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833c1dd7a/886f3471196c4481a86337a0c87d329b/FLAG36cf84455 [2020-10-23 20:21:58,607 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:21:58,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-10-23 20:21:58,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833c1dd7a/886f3471196c4481a86337a0c87d329b/FLAG36cf84455 [2020-10-23 20:21:58,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833c1dd7a/886f3471196c4481a86337a0c87d329b [2020-10-23 20:21:58,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:21:58,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:21:58,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:21:58,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:21:58,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:21:58,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:21:58" (1/1) ... [2020-10-23 20:21:58,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e160d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:58, skipping insertion in model container [2020-10-23 20:21:58,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:21:58" (1/1) ... [2020-10-23 20:21:58,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:21:58,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:21:59,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:21:59,377 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:21:59,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:21:59,593 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:21:59,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59 WrapperNode [2020-10-23 20:21:59,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:21:59,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:21:59,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:21:59,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:21:59,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (1/1) ... [2020-10-23 20:21:59,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (1/1) ... [2020-10-23 20:21:59,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (1/1) ... [2020-10-23 20:21:59,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (1/1) ... [2020-10-23 20:21:59,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (1/1) ... [2020-10-23 20:21:59,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (1/1) ... [2020-10-23 20:21:59,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (1/1) ... [2020-10-23 20:21:59,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:21:59,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:21:59,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:21:59,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:21:59,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (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 [2020-10-23 20:21:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:21:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:21:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:21:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:21:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:21:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:21:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:21:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:21:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:21:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:21:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:21:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:21:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:21:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:21:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:21:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:21:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:21:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:21:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:21:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:21:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:21:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:21:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:21:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:21:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:21:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:21:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:21:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:21:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:21:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:21:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:21:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:21:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 20:21:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:21:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:21:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:21:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:21:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:21:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:21:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:21:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:21:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:21:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:21:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:21:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:21:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:21:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:21:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:21:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:21:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:21:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:21:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:21:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:21:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:21:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:21:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:21:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:21:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:21:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:21:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:21:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:21:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:21:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:21:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:21:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:21:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:21:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:21:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:21:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:21:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:21:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:21:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:21:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:21:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:21:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:21:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:21:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:21:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:21:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:21:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:21:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:21:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:21:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:21:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:21:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:21:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:21:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:21:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:21:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:21:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:21:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:21:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:21:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:21:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:21:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:21:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:21:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:21:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:21:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:21:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 20:21:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:21:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:21:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:21:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:22:01,244 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:22:01,245 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:22:01,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:22:01 BoogieIcfgContainer [2020-10-23 20:22:01,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:22:01,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:22:01,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:22:01,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:22:01,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:21:58" (1/3) ... [2020-10-23 20:22:01,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6a2c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:22:01, skipping insertion in model container [2020-10-23 20:22:01,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:59" (2/3) ... [2020-10-23 20:22:01,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6a2c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:22:01, skipping insertion in model container [2020-10-23 20:22:01,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:22:01" (3/3) ... [2020-10-23 20:22:01,256 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-10-23 20:22:01,268 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:22:01,280 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:22:01,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:22:01,333 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:22:01,333 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:22:01,333 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:22:01,333 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:22:01,334 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:22:01,334 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:22:01,334 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:22:01,334 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:22:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states. [2020-10-23 20:22:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:22:01,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:01,386 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] [2020-10-23 20:22:01,386 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]=== [2020-10-23 20:22:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:01,393 INFO L82 PathProgramCache]: Analyzing trace with hash 51112487, now seen corresponding path program 1 times [2020-10-23 20:22:01,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:01,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632007879] [2020-10-23 20:22:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:01,477 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,249 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:02,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:22:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:22:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:22:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:22:02,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632007879] [2020-10-23 20:22:02,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:02,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:22:02,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090095452] [2020-10-23 20:22:02,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:22:02,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:02,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:22:02,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:22:02,568 INFO L87 Difference]: Start difference. First operand 365 states. Second operand 4 states. [2020-10-23 20:22:04,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:04,703 INFO L93 Difference]: Finished difference Result 584 states and 686 transitions. [2020-10-23 20:22:04,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:22:04,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-23 20:22:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:04,725 INFO L225 Difference]: With dead ends: 584 [2020-10-23 20:22:04,725 INFO L226 Difference]: Without dead ends: 360 [2020-10-23 20:22:04,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:22:04,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-23 20:22:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 311. [2020-10-23 20:22:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-10-23 20:22:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 341 transitions. [2020-10-23 20:22:04,952 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 341 transitions. Word has length 166 [2020-10-23 20:22:04,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:04,953 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 341 transitions. [2020-10-23 20:22:04,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:22:04,954 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 341 transitions. [2020-10-23 20:22:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:22:04,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:04,959 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] [2020-10-23 20:22:04,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:22:04,960 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]=== [2020-10-23 20:22:04,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:04,961 INFO L82 PathProgramCache]: Analyzing trace with hash -712395353, now seen corresponding path program 1 times [2020-10-23 20:22:04,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:04,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539735468] [2020-10-23 20:22:04,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:04,967 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,455 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:05,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:22:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:22:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:22:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:22:05,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539735468] [2020-10-23 20:22:05,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:05,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:22:05,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265448786] [2020-10-23 20:22:05,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:22:05,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:05,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:22:05,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:22:05,666 INFO L87 Difference]: Start difference. First operand 311 states and 341 transitions. Second operand 5 states. [2020-10-23 20:22:06,685 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:08,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:08,330 INFO L93 Difference]: Finished difference Result 504 states and 570 transitions. [2020-10-23 20:22:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:22:08,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-23 20:22:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:08,336 INFO L225 Difference]: With dead ends: 504 [2020-10-23 20:22:08,337 INFO L226 Difference]: Without dead ends: 349 [2020-10-23 20:22:08,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:22:08,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-10-23 20:22:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 301. [2020-10-23 20:22:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-23 20:22:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 328 transitions. [2020-10-23 20:22:08,457 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 328 transitions. Word has length 167 [2020-10-23 20:22:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:08,457 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 328 transitions. [2020-10-23 20:22:08,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:22:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 328 transitions. [2020-10-23 20:22:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 20:22:08,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:08,461 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] [2020-10-23 20:22:08,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:22:08,462 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]=== [2020-10-23 20:22:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:08,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1255814183, now seen corresponding path program 1 times [2020-10-23 20:22:08,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:08,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571925273] [2020-10-23 20:22:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:08,467 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,003 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:09,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:22:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:22:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:22:09,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571925273] [2020-10-23 20:22:09,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:09,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:22:09,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142121513] [2020-10-23 20:22:09,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:22:09,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:09,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:22:09,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:22:09,259 INFO L87 Difference]: Start difference. First operand 301 states and 328 transitions. Second operand 10 states. [2020-10-23 20:22:10,197 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:10,681 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:11,088 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:11,492 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:11,884 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:12,266 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:13,669 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:16,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:16,654 INFO L93 Difference]: Finished difference Result 809 states and 931 transitions. [2020-10-23 20:22:16,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:22:16,659 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-10-23 20:22:16,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:16,669 INFO L225 Difference]: With dead ends: 809 [2020-10-23 20:22:16,670 INFO L226 Difference]: Without dead ends: 628 [2020-10-23 20:22:16,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:22:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-10-23 20:22:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 553. [2020-10-23 20:22:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-23 20:22:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 623 transitions. [2020-10-23 20:22:16,985 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 623 transitions. Word has length 176 [2020-10-23 20:22:16,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:16,987 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 623 transitions. [2020-10-23 20:22:16,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:22:16,987 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 623 transitions. [2020-10-23 20:22:16,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 20:22:16,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:16,993 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] [2020-10-23 20:22:16,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:22:16,996 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]=== [2020-10-23 20:22:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:16,996 INFO L82 PathProgramCache]: Analyzing trace with hash 2108710426, now seen corresponding path program 1 times [2020-10-23 20:22:16,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:16,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987110660] [2020-10-23 20:22:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:17,002 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,473 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:17,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 20:22:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:22:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-23 20:22:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-23 20:22:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:22:17,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987110660] [2020-10-23 20:22:17,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:17,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:22:17,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114055216] [2020-10-23 20:22:17,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:22:17,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:17,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:22:17,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:22:17,703 INFO L87 Difference]: Start difference. First operand 553 states and 623 transitions. Second operand 10 states. [2020-10-23 20:22:18,406 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:19,550 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:19,945 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:21,276 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:21,699 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:22,120 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:22,618 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:23,050 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:23,473 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:24,676 INFO L93 Difference]: Finished difference Result 1259 states and 1508 transitions. [2020-10-23 20:22:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 20:22:24,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2020-10-23 20:22:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:24,684 INFO L225 Difference]: With dead ends: 1259 [2020-10-23 20:22:24,684 INFO L226 Difference]: Without dead ends: 826 [2020-10-23 20:22:24,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 20:22:24,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-10-23 20:22:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 737. [2020-10-23 20:22:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-10-23 20:22:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 833 transitions. [2020-10-23 20:22:25,053 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 833 transitions. Word has length 185 [2020-10-23 20:22:25,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:25,054 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 833 transitions. [2020-10-23 20:22:25,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:22:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 833 transitions. [2020-10-23 20:22:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-23 20:22:25,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:25,058 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] [2020-10-23 20:22:25,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:22:25,059 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]=== [2020-10-23 20:22:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:25,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1021879218, now seen corresponding path program 1 times [2020-10-23 20:22:25,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:25,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973933239] [2020-10-23 20:22:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:25,065 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,453 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:25,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 20:22:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 20:22:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:25,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:25,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973933239] [2020-10-23 20:22:25,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:25,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:22:25,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152544876] [2020-10-23 20:22:25,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:22:25,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:25,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:22:25,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:22:25,696 INFO L87 Difference]: Start difference. First operand 737 states and 833 transitions. Second operand 10 states. [2020-10-23 20:22:27,536 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:27,925 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:28,384 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:22:28,817 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:29,214 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:29,579 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:31,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:31,211 INFO L93 Difference]: Finished difference Result 1489 states and 1756 transitions. [2020-10-23 20:22:31,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:22:31,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 219 [2020-10-23 20:22:31,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:31,219 INFO L225 Difference]: With dead ends: 1489 [2020-10-23 20:22:31,219 INFO L226 Difference]: Without dead ends: 872 [2020-10-23 20:22:31,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:22:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-23 20:22:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 756. [2020-10-23 20:22:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-10-23 20:22:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 853 transitions. [2020-10-23 20:22:31,603 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 853 transitions. Word has length 219 [2020-10-23 20:22:31,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:31,604 INFO L481 AbstractCegarLoop]: Abstraction has 756 states and 853 transitions. [2020-10-23 20:22:31,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:22:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 853 transitions. [2020-10-23 20:22:31,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-23 20:22:31,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:31,609 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] [2020-10-23 20:22:31,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:22:31,609 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]=== [2020-10-23 20:22:31,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:31,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1340897262, now seen corresponding path program 1 times [2020-10-23 20:22:31,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:31,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644054760] [2020-10-23 20:22:31,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:31,615 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,012 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:32,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 20:22:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 20:22:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:32,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644054760] [2020-10-23 20:22:32,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:32,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 20:22:32,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284209254] [2020-10-23 20:22:32,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 20:22:32,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:32,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 20:22:32,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:22:32,314 INFO L87 Difference]: Start difference. First operand 756 states and 853 transitions. Second operand 13 states. [2020-10-23 20:22:33,087 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:33,490 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:33,877 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:34,312 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:34,678 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:36,040 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:36,452 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:36,918 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:37,369 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:37,795 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:39,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:39,545 INFO L93 Difference]: Finished difference Result 1530 states and 1823 transitions. [2020-10-23 20:22:39,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:22:39,549 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-10-23 20:22:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:39,556 INFO L225 Difference]: With dead ends: 1530 [2020-10-23 20:22:39,556 INFO L226 Difference]: Without dead ends: 894 [2020-10-23 20:22:39,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:22:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-23 20:22:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 768. [2020-10-23 20:22:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-23 20:22:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 865 transitions. [2020-10-23 20:22:39,862 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 865 transitions. Word has length 219 [2020-10-23 20:22:39,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:39,863 INFO L481 AbstractCegarLoop]: Abstraction has 768 states and 865 transitions. [2020-10-23 20:22:39,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 20:22:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 865 transitions. [2020-10-23 20:22:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-23 20:22:39,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:39,867 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] [2020-10-23 20:22:39,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:22:39,868 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]=== [2020-10-23 20:22:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:39,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1041496047, now seen corresponding path program 1 times [2020-10-23 20:22:39,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:39,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087179182] [2020-10-23 20:22:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:39,873 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,265 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:40,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 20:22:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 20:22:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:40,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087179182] [2020-10-23 20:22:40,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:40,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:22:40,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640948586] [2020-10-23 20:22:40,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:22:40,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:40,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:22:40,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:22:40,529 INFO L87 Difference]: Start difference. First operand 768 states and 865 transitions. Second operand 7 states. [2020-10-23 20:22:41,199 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:42,025 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:45,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:45,097 INFO L93 Difference]: Finished difference Result 2237 states and 2682 transitions. [2020-10-23 20:22:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:22:45,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-23 20:22:45,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:45,112 INFO L225 Difference]: With dead ends: 2237 [2020-10-23 20:22:45,112 INFO L226 Difference]: Without dead ends: 1589 [2020-10-23 20:22:45,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:22:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2020-10-23 20:22:45,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1464. [2020-10-23 20:22:45,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1464 states. [2020-10-23 20:22:45,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1676 transitions. [2020-10-23 20:22:45,663 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1676 transitions. Word has length 219 [2020-10-23 20:22:45,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:45,664 INFO L481 AbstractCegarLoop]: Abstraction has 1464 states and 1676 transitions. [2020-10-23 20:22:45,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:22:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1676 transitions. [2020-10-23 20:22:45,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-23 20:22:45,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:45,669 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] [2020-10-23 20:22:45,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:22:45,670 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]=== [2020-10-23 20:22:45,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:45,670 INFO L82 PathProgramCache]: Analyzing trace with hash -101376324, now seen corresponding path program 1 times [2020-10-23 20:22:45,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:45,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379785330] [2020-10-23 20:22:45,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:45,674 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,157 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:46,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:22:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:22:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:22:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 20:22:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 20:22:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:46,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379785330] [2020-10-23 20:22:46,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:46,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:22:46,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501401259] [2020-10-23 20:22:46,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:22:46,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:46,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:22:46,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:22:46,425 INFO L87 Difference]: Start difference. First operand 1464 states and 1676 transitions. Second operand 14 states. [2020-10-23 20:22:47,574 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-23 20:22:48,646 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:50,208 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:22:50,980 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-10-23 20:22:51,459 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:51,889 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:52,649 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-23 20:22:53,056 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:53,538 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:53,984 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:57,573 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:22:58,280 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:58,747 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:59,456 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:23:01,014 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-23 20:23:01,766 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:23:02,530 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-23 20:23:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:23:03,722 INFO L93 Difference]: Finished difference Result 4254 states and 5122 transitions. [2020-10-23 20:23:03,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-23 20:23:03,723 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 224 [2020-10-23 20:23:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:23:03,742 INFO L225 Difference]: With dead ends: 4254 [2020-10-23 20:23:03,742 INFO L226 Difference]: Without dead ends: 3197 [2020-10-23 20:23:03,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=510, Invalid=1940, Unknown=0, NotChecked=0, Total=2450 [2020-10-23 20:23:03,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2020-10-23 20:23:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2755. [2020-10-23 20:23:05,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-10-23 20:23:05,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3131 transitions. [2020-10-23 20:23:05,219 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3131 transitions. Word has length 224 [2020-10-23 20:23:05,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:23:05,220 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3131 transitions. [2020-10-23 20:23:05,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:23:05,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3131 transitions. [2020-10-23 20:23:05,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-23 20:23:05,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:23:05,229 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] [2020-10-23 20:23:05,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:23:05,230 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]=== [2020-10-23 20:23:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:23:05,230 INFO L82 PathProgramCache]: Analyzing trace with hash 385744977, now seen corresponding path program 1 times [2020-10-23 20:23:05,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:23:05,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055003673] [2020-10-23 20:23:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:23:05,567 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-10-23 20:23:05,701 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-23 20:23:05,998 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-10-23 20:23:06,356 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2020-10-23 20:23:06,708 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-23 20:23:07,082 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2020-10-23 20:23:07,477 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-10-23 20:23:07,586 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-23 20:23:07,870 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-10-23 20:23:08,279 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-10-23 20:23:08,389 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-23 20:23:08,657 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-23 20:23:09,023 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-10-23 20:23:09,129 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-23 20:23:09,407 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-23 20:23:09,810 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2020-10-23 20:23:09,920 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-23 20:23:10,258 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2020-10-23 20:23:10,706 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2020-10-23 20:23:10,819 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-23 20:23:11,469 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:12,055 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:12,636 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:13,229 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:13,835 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:14,468 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:15,052 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:15,661 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 168 [2020-10-23 20:23:15,664 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:16,623 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-10-23 20:23:17,530 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-10-23 20:23:18,443 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-10-23 20:23:19,271 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-10-23 20:23:19,283 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:20,053 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:23:20,834 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:23:21,650 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:23:22,420 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:23:22,425 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:23,196 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 216 [2020-10-23 20:23:23,983 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 216 [2020-10-23 20:23:24,773 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 216 [2020-10-23 20:23:25,536 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 216 [2020-10-23 20:23:25,541 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:26,259 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:26,979 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:27,707 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:28,491 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:28,496 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:29,069 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:29,643 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:30,223 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:30,790 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:31,383 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:31,948 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:32,515 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:33,087 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-23 20:23:33,090 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:33,888 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:34,739 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:35,521 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:36,308 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:36,315 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:36,890 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:37,470 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:38,082 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:38,659 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:39,246 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:39,831 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:40,420 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:41,008 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:23:41,012 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:41,835 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:42,603 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:43,387 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:44,140 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:44,146 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:44,975 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:45,793 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:46,590 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:47,410 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:23:47,415 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:48,225 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:48,997 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:49,781 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:50,554 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 220 [2020-10-23 20:23:50,561 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:51,128 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:23:51,727 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:23:52,299 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:23:52,871 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:23:53,451 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:23:54,053 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:23:54,676 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:23:55,296 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:23:55,299 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:55,912 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:23:56,495 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:23:57,077 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:23:57,658 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:23:58,247 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:23:58,853 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:23:59,439 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:24:00,025 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:24:00,028 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:24:00,612 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:24:01,190 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:24:01,766 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:24:02,346 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:24:02,932 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:24:03,513 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:24:04,102 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2020-10-23 20:24:04,684 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2020-10-23 20:24:04,689 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:24:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,582 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:24:06,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:24:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:24:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:24:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:24:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:24:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:24:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:24:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 20:24:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:24:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:24:17,063 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-10-23 20:24:18,693 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-10-23 20:24:20,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055003673] [2020-10-23 20:24:20,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:24:20,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2020-10-23 20:24:20,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002138825] [2020-10-23 20:24:20,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 103 states [2020-10-23 20:24:20,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:24:20,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2020-10-23 20:24:20,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1303, Invalid=9827, Unknown=0, NotChecked=0, Total=11130 [2020-10-23 20:24:20,746 INFO L87 Difference]: Start difference. First operand 2755 states and 3131 transitions. Second operand 103 states. [2020-10-23 20:24:21,658 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:24:22,636 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 20:24:23,128 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:24:23,594 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-23 20:24:24,053 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:24:24,980 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-10-23 20:24:25,854 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 215 [2020-10-23 20:24:26,811 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 221 [2020-10-23 20:24:27,749 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 223 [2020-10-23 20:24:28,778 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 221 [2020-10-23 20:24:29,719 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 217 [2020-10-23 20:24:30,702 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 223 [2020-10-23 20:24:31,745 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 225 [2020-10-23 20:24:32,786 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 223 [2020-10-23 20:24:33,838 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 225 [2020-10-23 20:24:34,539 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:24:34,974 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:24:36,036 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:24:36,656 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-23 20:24:37,193 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-23 20:24:37,847 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-23 20:24:38,451 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:24:39,144 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2020-10-23 20:24:39,716 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 20:24:40,129 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:24:40,720 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2020-10-23 20:24:41,520 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2020-10-23 20:24:42,093 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:24:42,583 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:24:43,205 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:24:43,662 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 20:24:44,547 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2020-10-23 20:24:45,462 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:24:45,954 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 20:24:46,600 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:24:47,278 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2020-10-23 20:24:47,711 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:24:48,350 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2020-10-23 20:24:49,031 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 20:24:49,851 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 20:24:50,693 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-23 20:24:51,360 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 20:24:52,294 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-23 20:24:53,045 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-23 20:24:53,878 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-23 20:24:54,584 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-23 20:24:55,360 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-23 20:24:56,446 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-23 20:24:57,285 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-23 20:24:58,080 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:24:59,677 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-23 20:25:01,176 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-23 20:25:01,864 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-23 20:25:02,425 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-23 20:25:03,052 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:25:03,616 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-23 20:25:04,263 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-23 20:25:04,778 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 20:25:05,467 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:25:06,184 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:25:06,948 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:25:07,650 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-23 20:25:08,416 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-23 20:25:09,422 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-23 20:25:09,911 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:25:10,639 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-23 20:25:11,079 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:25:11,875 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-23 20:25:12,816 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:25:14,176 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-23 20:25:14,965 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-23 20:25:15,481 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-23 20:25:16,277 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:25:16,941 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-23 20:25:17,833 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 20:25:18,445 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-23 20:25:18,728 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2020-10-23 20:25:19,989 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-23 20:25:20,951 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2020-10-23 20:25:21,492 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-23 20:25:22,058 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-23 20:25:22,740 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2020-10-23 20:25:23,240 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-23 20:25:23,845 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2020-10-23 20:25:24,359 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-23 20:25:24,849 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-23 20:25:25,509 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:25:26,246 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:25:26,872 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:25:27,427 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-23 20:25:28,025 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:25:29,095 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 230 [2020-10-23 20:25:30,156 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-23 20:25:30,866 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-10-23 20:25:31,955 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 230 [2020-10-23 20:25:32,879 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2020-10-23 20:25:34,129 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 235 DAG size of output: 232 [2020-10-23 20:25:35,282 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2020-10-23 20:25:36,493 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2020-10-23 20:25:37,749 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 240 DAG size of output: 237 [2020-10-23 20:25:38,343 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2020-10-23 20:25:39,597 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 242 DAG size of output: 239 [2020-10-23 20:25:40,206 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2020-10-23 20:25:41,475 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 240 DAG size of output: 237 [2020-10-23 20:25:42,775 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 242 DAG size of output: 239 [2020-10-23 20:25:43,420 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2020-10-23 20:25:44,109 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 20:25:45,385 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 242 DAG size of output: 239 [2020-10-23 20:25:46,043 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 20:25:46,723 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 20:25:48,018 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 244 DAG size of output: 241 [2020-10-23 20:25:48,663 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 20:25:49,927 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 242 DAG size of output: 239 [2020-10-23 20:25:51,210 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 240 DAG size of output: 237 [2020-10-23 20:25:51,937 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 20:25:52,425 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:25:53,273 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-23 20:25:54,010 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 20:25:54,804 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 20:25:56,674 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 244 DAG size of output: 241 [2020-10-23 20:25:57,980 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 246 DAG size of output: 243 [2020-10-23 20:25:59,378 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 246 DAG size of output: 243 [2020-10-23 20:26:00,122 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-23 20:26:01,439 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 248 DAG size of output: 245 [2020-10-23 20:26:02,125 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-23 20:26:03,461 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 246 DAG size of output: 243 [2020-10-23 20:26:04,285 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-23 20:26:05,081 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-23 20:26:05,851 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-23 20:26:06,666 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-23 20:26:07,940 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 245 DAG size of output: 243 [2020-10-23 20:26:08,747 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-23 20:26:09,653 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-23 20:26:10,470 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-23 20:26:11,585 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-23 20:26:12,830 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 239 DAG size of output: 236 [2020-10-23 20:26:13,905 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-23 20:26:14,410 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:26:15,209 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-23 20:26:15,957 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-23 20:26:16,600 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:26:17,178 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-23 20:26:17,941 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-23 20:26:19,447 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:26:19,965 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:26:20,719 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-23 20:26:21,206 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-23 20:26:21,697 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-23 20:26:22,240 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:26:22,756 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:26:23,230 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:26:23,911 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:26:24,435 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-23 20:26:24,974 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:26:26,155 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:26:27,441 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:26:28,769 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-23 20:26:29,851 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:26:30,927 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 233 [2020-10-23 20:26:31,492 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:26:32,147 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-10-23 20:26:32,791 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-10-23 20:26:33,231 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:26:33,769 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-10-23 20:26:34,881 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 237 DAG size of output: 235 [2020-10-23 20:26:35,410 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:26:36,571 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 239 DAG size of output: 237 [2020-10-23 20:26:37,942 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 239 DAG size of output: 237 [2020-10-23 20:26:38,555 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-23 20:26:39,731 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 242 DAG size of output: 240 [2020-10-23 20:26:40,346 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2020-10-23 20:26:40,533 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-23 20:26:41,120 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2020-10-23 20:26:41,296 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-10-23 20:26:42,068 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2020-10-23 20:26:42,753 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-10-23 20:26:45,222 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 235 DAG size of output: 233 [2020-10-23 20:26:49,687 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-23 20:26:50,254 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-23 20:26:50,784 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-10-23 20:26:51,284 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-23 20:26:55,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:26:55,061 INFO L93 Difference]: Finished difference Result 10391 states and 13466 transitions. [2020-10-23 20:26:55,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 369 states. [2020-10-23 20:26:55,062 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 334 [2020-10-23 20:26:55,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:26:55,068 INFO L225 Difference]: With dead ends: 10391 [2020-10-23 20:26:55,068 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:26:55,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 177 SyntacticMatches, 38 SemanticMatches, 439 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88700 ImplicationChecksByTransitivity, 144.0s TimeCoverageRelationStatistics Valid=11606, Invalid=182434, Unknown=0, NotChecked=0, Total=194040 [2020-10-23 20:26:55,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:26:55,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:26:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:26:55,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:26:55,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 334 [2020-10-23 20:26:55,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:26:55,140 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:26:55,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 103 states. [2020-10-23 20:26:55,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:26:55,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:26:55,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:26:55,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:26:55,825 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 20:26:57,603 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 20:26:58,994 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-23 20:26:59,615 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-23 20:27:00,892 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 212 [2020-10-23 20:27:04,643 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 481 DAG size of output: 303 [2020-10-23 20:27:05,526 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 301 [2020-10-23 20:27:15,919 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 350 [2020-10-23 20:27:16,735 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 301 [2020-10-23 20:27:16,992 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 240 [2020-10-23 20:27:17,551 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 350 [2020-10-23 20:27:18,352 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 301 [2020-10-23 20:27:20,174 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 282 [2020-10-23 20:27:20,809 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 284 [2020-10-23 20:27:38,952 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 350 [2020-10-23 20:27:41,777 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 301 [2020-10-23 20:27:46,371 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 330 [2020-10-23 20:27:46,574 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 219 [2020-10-23 20:28:12,539 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 301 [2020-10-23 20:28:13,922 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 561 DAG size of output: 329 [2020-10-23 20:28:17,666 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 282 [2020-10-23 20:28:18,311 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 297 [2020-10-23 20:28:46,966 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 237 [2020-10-23 20:28:47,456 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 278 [2020-10-23 20:29:11,011 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 114 [2020-10-23 20:29:14,997 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 282 [2020-10-23 20:29:20,592 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 301 [2020-10-23 20:29:28,717 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 11 [2020-10-23 20:29:29,590 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 7 [2020-10-23 20:29:32,642 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 242 DAG size of output: 71 [2020-10-23 20:29:34,687 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 283 DAG size of output: 69 [2020-10-23 20:29:36,757 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 283 DAG size of output: 69 [2020-10-23 20:29:38,889 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 285 DAG size of output: 71 [2020-10-23 20:29:40,654 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 217 DAG size of output: 17 [2020-10-23 20:29:42,496 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 296 DAG size of output: 65 [2020-10-23 20:29:43,824 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 240 DAG size of output: 39 [2020-10-23 20:29:44,499 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:29:45,840 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 238 DAG size of output: 39 [2020-10-23 20:29:46,968 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 269 DAG size of output: 12 [2020-10-23 20:29:47,109 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:29:47,546 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 1 [2020-10-23 20:29:47,873 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 1 [2020-10-23 20:29:49,068 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-10-23 20:29:49,220 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:29:50,109 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 448 DAG size of output: 1 [2020-10-23 20:29:50,842 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 29 [2020-10-23 20:29:51,580 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 13 [2020-10-23 20:29:52,270 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 27 [2020-10-23 20:29:53,826 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 228 DAG size of output: 48 [2020-10-23 20:29:54,539 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 27 [2020-10-23 20:30:01,162 WARN L193 SmtUtils]: Spent 6.58 s on a formula simplification. DAG size of input: 445 DAG size of output: 25 [2020-10-23 20:30:02,737 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 230 DAG size of output: 51 [2020-10-23 20:30:05,844 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 256 DAG size of output: 64 [2020-10-23 20:30:07,283 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 254 DAG size of output: 46 [2020-10-23 20:30:08,549 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 238 DAG size of output: 39 [2020-10-23 20:30:09,183 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 29 [2020-10-23 20:30:10,612 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 254 DAG size of output: 46 [2020-10-23 20:30:11,883 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 238 DAG size of output: 39 [2020-10-23 20:30:12,090 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 6 [2020-10-23 20:30:12,958 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 46 [2020-10-23 20:30:14,562 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 335 DAG size of output: 73 [2020-10-23 20:30:15,485 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-10-23 20:30:16,780 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 219 DAG size of output: 39 [2020-10-23 20:30:18,052 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 221 DAG size of output: 41 [2020-10-23 20:30:18,727 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:30:19,616 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 56 [2020-10-23 20:30:20,501 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-10-23 20:30:21,338 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 43 [2020-10-23 20:30:21,724 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-10-23 20:30:21,894 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 1 [2020-10-23 20:30:22,225 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 1 [2020-10-23 20:30:27,133 WARN L193 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 298 DAG size of output: 94 [2020-10-23 20:30:28,027 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 58 [2020-10-23 20:30:28,700 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:30:29,085 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-10-23 20:30:29,413 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 1 [2020-10-23 20:30:30,335 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 56 [2020-10-23 20:30:32,301 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 249 DAG size of output: 31 [2020-10-23 20:30:34,021 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 234 DAG size of output: 64 [2020-10-23 20:30:34,305 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 7 [2020-10-23 20:30:34,450 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:30:35,290 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 43 [2020-10-23 20:30:36,301 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-10-23 20:30:36,685 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 1 [2020-10-23 20:30:37,990 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 262 DAG size of output: 54 [2020-10-23 20:30:38,924 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 56 [2020-10-23 20:30:42,271 WARN L193 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 265 DAG size of output: 9 [2020-10-23 20:30:46,892 WARN L193 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 334 DAG size of output: 96 [2020-10-23 20:30:47,618 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-10-23 20:30:48,002 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 1 [2020-10-23 20:30:50,261 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 236 DAG size of output: 41 [2020-10-23 20:30:52,005 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 278 DAG size of output: 56 [2020-10-23 20:30:56,297 WARN L193 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 245 DAG size of output: 54 [2020-10-23 20:30:56,983 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:30:57,142 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:30:58,885 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 234 DAG size of output: 64 [2020-10-23 20:30:59,310 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 1 [2020-10-23 20:31:02,869 WARN L193 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 270 DAG size of output: 42 [2020-10-23 20:31:04,111 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 260 DAG size of output: 52 [2020-10-23 20:31:04,533 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 1 [2020-10-23 20:31:05,254 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:31:06,162 WARN L193 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 53 [2020-10-23 20:31:07,892 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 278 DAG size of output: 56 [2020-10-23 20:31:08,800 WARN L193 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 58 [2020-10-23 20:31:10,440 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 248 DAG size of output: 45 [2020-10-23 20:31:11,223 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 64 [2020-10-23 20:31:12,703 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 254 DAG size of output: 46 [2020-10-23 20:31:13,178 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 1 [2020-10-23 20:31:13,486 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 7 [2020-10-23 20:31:14,770 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 238 DAG size of output: 39 [2020-10-23 20:31:16,920 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 420 DAG size of output: 18 [2020-10-23 20:31:18,208 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 236 DAG size of output: 50 [2020-10-23 20:31:18,615 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 29 [2020-10-23 20:31:21,207 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 455 DAG size of output: 27 [2020-10-23 20:31:22,785 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 265 DAG size of output: 56 [2020-10-23 20:31:25,735 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 230 DAG size of output: 10 [2020-10-23 20:31:26,464 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 27 [2020-10-23 20:31:35,068 WARN L193 SmtUtils]: Spent 8.59 s on a formula simplification. DAG size of input: 305 DAG size of output: 61 [2020-10-23 20:31:35,794 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 27 [2020-10-23 20:31:39,803 WARN L193 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 293 DAG size of output: 9 [2020-10-23 20:31:39,966 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:31:48,094 WARN L193 SmtUtils]: Spent 8.12 s on a formula simplification. DAG size of input: 308 DAG size of output: 65 [2020-10-23 20:31:56,656 WARN L193 SmtUtils]: Spent 8.55 s on a formula simplification. DAG size of input: 305 DAG size of output: 61 [2020-10-23 20:31:56,992 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 1 [2020-10-23 20:31:59,148 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 338 DAG size of output: 81 [2020-10-23 20:32:02,479 WARN L193 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 253 DAG size of output: 60 [2020-10-23 20:32:05,007 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 358 DAG size of output: 88 [2020-10-23 20:32:07,748 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 453 DAG size of output: 20 [2020-10-23 20:32:12,400 WARN L193 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 334 DAG size of output: 96 [2020-10-23 20:32:13,275 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 7 [2020-10-23 20:32:13,951 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:32:15,089 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 269 DAG size of output: 12 [2020-10-23 20:32:15,782 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:32:17,418 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 248 DAG size of output: 45 [2020-10-23 20:32:18,703 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 238 DAG size of output: 39 [2020-10-23 20:32:19,523 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 40 [2020-10-23 20:32:21,238 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 267 DAG size of output: 39 [2020-10-23 20:32:22,637 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 243 DAG size of output: 16 [2020-10-23 20:32:23,325 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:32:24,646 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 262 DAG size of output: 54 [2020-10-23 20:32:25,057 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-10-23 20:32:25,915 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 43 [2020-10-23 20:32:27,112 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 219 DAG size of output: 39 [2020-10-23 20:32:27,794 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:32:29,116 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 234 DAG size of output: 39 [2020-10-23 20:32:30,042 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 7 [2020-10-23 20:32:30,946 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 7 [2020-10-23 20:32:33,890 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 319 DAG size of output: 63 [2020-10-23 20:32:36,822 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 268 DAG size of output: 38 [2020-10-23 20:32:40,649 WARN L193 SmtUtils]: Spent 3.79 s on a formula simplification. DAG size of input: 414 DAG size of output: 53 [2020-10-23 20:32:41,559 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 46 [2020-10-23 20:32:42,036 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 1 [2020-10-23 20:32:45,928 WARN L193 SmtUtils]: Spent 3.87 s on a formula simplification. DAG size of input: 417 DAG size of output: 57 [2020-10-23 20:32:46,418 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 1 [2020-10-23 20:32:47,317 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-10-23 20:32:50,404 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 232 DAG size of output: 13 [2020-10-23 20:32:52,587 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 340 DAG size of output: 84 [2020-10-23 20:32:54,804 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 335 DAG size of output: 105 [2020-10-23 20:32:56,885 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 283 DAG size of output: 69 [2020-10-23 20:32:58,665 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 278 DAG size of output: 56 [2020-10-23 20:33:01,943 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 247 DAG size of output: 55 [2020-10-23 20:33:06,130 WARN L193 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 244 DAG size of output: 52 [2020-10-23 20:33:08,427 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 335 DAG size of output: 78 [2020-10-23 20:33:08,577 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:33:09,451 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 56 [2020-10-23 20:33:10,971 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 332 DAG size of output: 70 [2020-10-23 20:33:11,358 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 1 [2020-10-23 20:33:13,056 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 230 DAG size of output: 60 [2020-10-23 20:33:13,947 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 7 [2020-10-23 20:33:15,050 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 228 DAG size of output: 13 [2020-10-23 20:33:16,805 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 232 DAG size of output: 62 [2020-10-23 20:33:18,338 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 334 DAG size of output: 28 [2020-10-23 20:33:19,244 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 7 [2020-10-23 20:33:21,335 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 280 DAG size of output: 7 [2020-10-23 20:33:26,777 WARN L193 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 320 DAG size of output: 112 [2020-10-23 20:33:27,011 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 6 [2020-10-23 20:33:27,710 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:33:29,642 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 285 DAG size of output: 59 [2020-10-23 20:33:30,331 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:33:30,820 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 27 [2020-10-23 20:33:31,855 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 215 DAG size of output: 28 [2020-10-23 20:33:34,447 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 359 DAG size of output: 88 [2020-10-23 20:33:39,085 WARN L193 SmtUtils]: Spent 4.63 s on a formula simplification. DAG size of input: 245 DAG size of output: 54 [2020-10-23 20:33:40,836 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 335 DAG size of output: 73 [2020-10-23 20:33:41,277 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 1 [2020-10-23 20:33:41,443 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:33:42,930 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 251 DAG size of output: 55 [2020-10-23 20:33:43,721 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 27 [2020-10-23 20:33:44,172 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-10-23 20:33:47,344 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 319 DAG size of output: 63 [2020-10-23 20:33:47,485 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 1 [2020-10-23 20:33:47,876 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 1 [2020-10-23 20:33:49,912 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 331 DAG size of output: 27 [2020-10-23 20:33:51,759 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 338 DAG size of output: 31 [2020-10-23 20:33:53,640 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 329 DAG size of output: 87 [2020-10-23 20:33:54,066 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-10-23 20:34:03,508 WARN L193 SmtUtils]: Spent 9.43 s on a formula simplification. DAG size of input: 305 DAG size of output: 62 [2020-10-23 20:34:04,414 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 11 [2020-10-23 20:34:06,267 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 331 DAG size of output: 25 [2020-10-23 20:34:06,640 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 11 [2020-10-23 20:34:07,048 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:34:08,499 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 264 DAG size of output: 56 [2020-10-23 20:34:16,618 WARN L193 SmtUtils]: Spent 8.09 s on a formula simplification. DAG size of input: 290 DAG size of output: 48 [2020-10-23 20:34:18,063 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 262 DAG size of output: 54 [2020-10-23 20:34:19,307 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 269 DAG size of output: 12 [2020-10-23 20:34:20,294 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 56 [2020-10-23 20:34:20,938 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 41 [2020-10-23 20:34:22,313 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 262 DAG size of output: 54 [2020-10-23 20:34:23,062 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 25 [2020-10-23 20:34:23,925 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 11 [2020-10-23 20:34:25,256 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 264 DAG size of output: 25 [2020-10-23 20:34:26,049 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-10-23 20:34:28,276 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 410 DAG size of output: 12 [2020-10-23 20:34:28,600 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2020-10-23 20:34:29,871 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 219 DAG size of output: 39 [2020-10-23 20:34:33,788 WARN L193 SmtUtils]: Spent 3.91 s on a formula simplification. DAG size of input: 270 DAG size of output: 42 [2020-10-23 20:34:33,986 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 1 [2020-10-23 20:34:39,397 WARN L193 SmtUtils]: Spent 5.37 s on a formula simplification. DAG size of input: 298 DAG size of output: 94 [2020-10-23 20:34:42,765 WARN L193 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 256 DAG size of output: 71 [2020-10-23 20:34:43,119 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 11 [2020-10-23 20:34:47,991 WARN L193 SmtUtils]: Spent 4.86 s on a formula simplification. DAG size of input: 338 DAG size of output: 96 [2020-10-23 20:34:49,176 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 226 DAG size of output: 11 [2020-10-23 20:34:49,954 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 15 [2020-10-23 20:34:50,386 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 1 [2020-10-23 20:34:50,834 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 1 [2020-10-23 20:34:52,245 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 238 DAG size of output: 39